Allegiant Pet Policy 2026 - Complete Fees, Size Limits & Booking Guide

Allegiant Pet Policy 2026 - Complete Fees, Size Limits & Booking Guide TripMozzo

Table Of Content

Allegiant Air will continue to cater to the pet owners who are traveling with their pets in 2026. It is an detailed overview that consists of all the requirements of the Allegiant Pet Policy including the charges that are involved in the process, the sizes of one pet that he or she can bring onboard as well as all the procedures that a person must follow to book the pet travel. These tips will give you and your pet an journey. Whether you want to make a trip on the weekend or a vacation more so, the familiarity with the aspect of navigating Allegiant pet policies will help you in making sure that you and your favorite animal friend enjoy a pleasant and comfortable ride.

Does Allegiant Air Allow Pets?

Yes, Allegiant Air does not forbid pets in their air flights ,provided that they are under particular rules and conditions. Pets are not allowed as checked baggage or cargo; pets are required to fly in the same aircraft cabin with you. Allegiant accepts domestic cats and dogs and they need to be of a size, age and carrier. You will need to reserve and pay in advance your pet and pets must be securely contained in an approved carrier on the journey.

Types of Pets Allowed (Cats & Dogs)

Allegiant's pet policy is straight forward that permits on board is quite straightforward in its pet policy:

  • Small Domestic Dogs and cats only: Allegiant Air do not take any other animals as regular pets; the only animals that can be carried in the cabin are small domestic dogs and cats.
  • Service Animals: The trained service animals of people with disabilities are permitted to be carried to the cabin; the animals are not charged as pets, but you must complete the U.S. DOT Service Animal Air Transportation Form at least 48 hours before takeoff.

If you need to submit your DOT Service Animal form, contact Allegiant Customer Service for the correct email address.

Allegiant Air Dog and Cat Policy Overview 

Small domestic animals such as cats and dogs can be taken on flights on board the aircraft by Allegiant Air within the 48 contiguous United States. Pets should be in suitable carriers, and must fit under the seat, and must comply with behavioral and health standards. Allegiant does not carry pets either as part of checked baggage or cargo.

Allegiant Dog Policy Explained

  • Only domestic animals are permitted in the cabin, no exotic or farm animals.
  • During the trip, the dogs must be in an all closed carrier that is free of leaks and kept under the seat.
  • The carrier should be able to fit beneath the seat and size restraints imposed by the airline.
  • Dogs have to be aged eight weeks and healthy with no smell and non-disturbing.
  • Carriers must not carry more than two pets, and one carrier must carry one passenger.
  • The dog owners are obliged to make check-ins that are at least one hour before departure to ensure compliance.

Allegiant Cat Policy Explained

  • In Allegiant, domestic cats are only permitted to fly in the cabin on domestic flights.
  • The cats must be placed in a fitting carrier that can fit in the seat and must be enclosed.
  • The cats will all be required to be healthy, non-aggressive, non-smelly and able to be contained and kept in the carrier.
  • Cat carriers are one of your carry-on items and therefore plan carry-ons.
  • In the terminal and on the plane, cats should stay in the carrier and they cannot be taken out.
  • Confirm pet compliance with an Allegiant agent at least an hour before departure.

Domestic vs International Pet Rules

The Allegiant pet policy varies largely on domestic and international travels. The domestic flights permit cabin pets with some rules, though international routes do not permit regular pets according to the same policy.

Rule Aspect

Domestic Flights

International/U.S. Territories

Pets Allowed

Small dogs & cats in cabin

Not accepted under standard pet policy

Carrier Requirement

Must fit under seat

Not applicable

Advanced Check-In

Required for pets

Not applicable

Cage/Baggage Options

Cabin only, no cargo

Not permitted

Documentation

No health certificate required

Depends on destination's rules

International flights and U.S territories: Allegiant does not carry pets on international flights and to U.S territories by its normal pet policy because it differs by area, because of the entry requirement and restrictions.

What Countries Does Allegiant Air Fly To?

Allegiant Air engages in local air services primarily in the United States and serves many cities in the U.S across several states such as Florida, California, Texas, etc. Currently, in addition to its current route system, Allegiant does provide normal scheduled international flights to other nations like Mexico and Canada. Its network targets the domestic U.S. destinations and travel internationally leisure.

Pet Travel Limitations on International Routes

  • The Allegiant air pet policy incorporates domestic flights in its network.
  • The airline does not have regular international passenger routes making pets unable to travel under its cabin pet program internationally.
  • They do not permit pets to be carried onboard the aircraft in the cargo or the baggage in the checked baggage on international flights.
  • The foreign destinations will usually require health certificates, quarantine and vaccination, which Allegiant is not offering.
  • Allegiant does not deal with customs and animal clearance of foreign countries.
  • International passengers who are transporting pets will be forced to use another airline that provides approved international services in transporting pets.

Countries Where Pets Are Not Allowed

  1. Non-Operated International Countries: Allegiant flies to Mexico, Canada, Europe, Asia, or any other foreign destination and the pet can be carried on the standard route network, the pets cannot be carried under the cabin pet policy of Allegiant on international flights.
  2. U.S. Territories / Exceptions: U.S. domestic is primarily the business of Allegiant; pets are only accepted on flights within the U.S. (contiguous states). When flights are done to destinations such as Puerto Rico, Hawaii, Alaska or territories that have special regulations, then the existing model of Allegiant does not cover the routine pet service in its pet policy.
  3. Routes With More Complicated Regulations: Allegiant has the basic in-cabin pet policy, which will not work with routes that have more complicated rules to comply with (quarantine, extended health documentation, etc.), another carrier would be required to provide proper service.

Classes of Service Offered to Pets by Allegiant Air

The pet policy presented by Allegiant Air is rather straightforward, and it is concerned with the in-cabin transportation of small domestic pets. The airline does not provide the transportation of pets in the form of checked baggage or cargo in accordance with its standard procedures under the consideration of safety and the national norms of domestic transport. Carrier and behaviour requirements are required of pets when they fly in the aircraft cabin.

In-cabin Pet Travel

Allegiant Air is a company that has the option to carry small domestic cats and dogs with you on your aircraft in the cabin of the aircraft, provided that you are making flights within the 48 United States. During the journey, pets should be locked up in an airtight carrier that is fitted under your seat before the trip. Each passenger is allowed to carry one carrier with his/her animal, which should be quiet, healthy and non-disturbing. There is a non-refundable charge per carrier, and carriers are included in your allowance of carry-ons.

Because pets must fit under the seat, we recommend viewing our Seat Selection guide to avoid rows with restricted under-seat space.

Checked Baggage (Not Allowed - Explanation)

Allegiant Air does not allow pets to be carried as checked baggage. This implies that you do not get a chance to leave your pet in the luggage to be carried in the aircraft hold. The policy of the airline is structured in a way that pets do not have to be given to baggage compartments and therefore pets are allowed to travel along with their owners during the entire flight to avoid the risk involved. In case a pet cannot be carried in the cabin, it must be transported through another carrier that will be required.

Air Cargo Policy (Important Clarification)

Allegiant Air lacks an air transport service. This is unlike some carriers, which permit pets to be carried in a pressurised cargo hold in uncontrolled conditions; the program in Allegiant is pure in-cabin. This implies that pets will never be allowed as cargo in any Allegiant flight, regardless of whether the cabin option is not available. In case you require cargo pet services, then you have to use a different airline or pet transportation service.

Allegiant Pet Policy - In Cabin

Allegiant air permits traveling of small dogs and cats in the cabin of the aircraft with some guidelines. Pets have to be in designated carriers that should be placed under the seat and one carrier of pet per passenger. The policy assists in the provision of safety, comfort, and adherence to airline travel rules of pets on domestic flights.

Eligible Pets (Dogs & Cats Only)

The Allegiant Air allows some domestic dogs and cats to be on the cabin; according to the policy, the other pets including birds, reptiles, and exotic pets, are not permitted. It must be a healthy well-travelled animal (relaxed and underweight) in a full-enclosed and leak-free carrier that can be placed beneath the seat. The pets should also be of correct age and airline quality.

One Pet Per Carrier Rule

Allegiant Air has one pet per carrier that is acceptable and includes a carry-on bag as a counted carrier. Although two small pets can be placed in one carrier in case they are comfortable together, each passenger can only have pets in one carrier. The carrier should be able to seat under the seat in the front and meet the size requirements to ensure that it will travel safely during the flight.

Allegiant Air Pet Reservation Process 

The Allegiant Air pet reservation system assists passengers in bringing their small pets on their excursion with transparent policies. The passengers are to book pet space in advance and be aware of seating restrictions and learn about the limits, as not many pets can be carried on board.

How to Add a Pet to Your Booking 

  1. Go to the official site of allegiantair.com, and start to make a booking.
  2. In the process of booking, navigate to the section of travel extras.
  3. Choose the alternative of adding a pet to your reservation.
  4. In case you have a flight booked, then go to "Manage Travel."
  5. Type in your confirmation number and surname.
  6. Select the pet add-on option and revise eligibility rules.
  7. Confirm the reservation by paying the needed pet fee.
  8. Make sure that your pet fits in the carrier and in-cabin requirements.
  9. Store the modified booking information.
  10. Get the pet early, because additions to the airport are not guaranteed.

Seat Availability Limits 

  1. Each aircraft is only supposed to have a certain number of pets.
  2. Only one pet can be carried by each customer.
  3. Pets should always be kept in a properly accepted carrier.
  4. Passengers who are travelling with pets are not allowed to use exit row seats.
  5. There are also limited bulkhead seats that can be used in pet transportation.
  6. It is not permissible to buy more seats to pets.
  7. There is a shortage of pets, and it is better to propose them in advance.

Age Requirements for Pets

Allegiant air necessitates pets to pass the age requirements to fly as cabin companions. In order to travel, dogs and cats should be at least eight weeks old and should be completely weaned. The pets being transported should be young, comfortable to sit or stand in the carrier, and under the seat should be checked. Airline companies can refuse a boarding to board pets that are too small or vulnerable to their safety during the flight.

Allegiant Air Pet Carrier Size Requirements

The size of the pets will be of particular to Allegiant Air size requirements as they want to make sure that pets are safely transported and can fit easily under the seat. The fliers have to operate on certified carriers that can ensure free circulation with the in-cabin space requirements of the airline.

Carrier Size Requirements 

  • The size of dog carriers should be less than the aisle of the seat in front of you.
  • The largest Allegiant pet carrier dimensions is normally about 18 x 14 x 8 inches.
  • The pets should be able to stand, sit and turn in a comfortable manner within the carrier.
  • Carriers should be familiar, should be leak-proof, and should be well ventilated at least on two sides.
  • Zippers or buttons must be fastened in to avoid getting free.
  • Each carrier is supposed to have one pet only.
  • The carrier is considered one personal item.
  • Carriers that are oversized or that do not meet the compliance requirements are not allowed to be loaded at the airport.

Soft-Sided vs Hard-Sided Carriers

Allegiant Air does not impose any restrictions on the type of soft or hard-sided pet carriers as long as they comply with size and safety standards and occupy the aircraft seat appropriately.

Carrier Type

Key Features

Suitability

Soft-Sided Carriers

Flexible material, expandable sides, lightweight design

Easier to fit under seats and more comfortable for pets

Hard-Sided Carriers

Rigid structure, strong shell, fixed dimensions

Durable but must strictly meet size limits to be accepted

Forms Required for Pet Travel

The in-cabin pet travel doesn't usually demand much paperwork in case of domestic flights at Allegiant Air. Nonetheless, the passengers should make sure that their pets are healthy and fit to fly. Certain roads or local governments might demand a health certificate, immunization certificates or forms of compliance. Basic pet health documents are advised to be carried to avoid problems at check-in or inspections.

Route Restrictions & Important Terms 

Allegiant Air also imposes certain route, season, and operational limitations to travel with pets to guarantee safety and compliance with regulations. It is important that passengers consider these restrictions because pets are not allowed in all flights or when there are particular weather and traveling conditions.

Flights Where Pets Are Not Permitted 

  • On Allegiant Air, pets cannot be carried on international flights.
  • Pets cannot be brought on the flights of the partner and charter aircraft.
  • Some of the routes might not allow pets based on the aircraft type or cabin configuration.
  • Pets are also not permitted to be carried in as baggage or cargo.
  • The availability of the services can be different depending on the destination airport's regulations.
  • Small planes that have small cabin space can refuse to take pets after full capacity.

Seasonal and Weather Restrictions 

  • Severe temperatures of either heat or cold can also lead to the restriction of pet travel.
  • Delays or cancellations due to weather may affect the acceptance of pets.
  • Allegiant can deny pet transportation in risky seasonal conditions.
  • There should be cabin temperature and ventilation standards.
  • The demand seasonality can decrease the number of pets in the popular routes.
  • The passengers are advised to confirm the weather near departure.
  • Security issues will always prevail over verified pet bookings.

Check-In Process for Pets on Allegiant

There is an additional preparation at the airport when bringing pets on board Allegiant Air. To make sure that its passenger travel is stress-free and easy, passengers have to adhere to certain counter check-in guidelines and report to the airport early enough to advance through verification, carrier inspection, and confirmation of payment.

Airport Check-in Rules

  • Customers with pets on board will have to check-in at the Allegiant airport counter since they cannot make pet reservations online, by mobile, or self-service kiosk.
  • The airline staff will verify the validity of the pet booking, ensure that the carrier of the pet is of the specific size and ventilation when the aircraft is checking in and ensure that the pet fits the carrier.
  • Animals should not be taken out of the approved carrier at any time when in the terminal, during security check, and on boarding.
  • Allegiant does not carry pets as baggage or cargo and this should be carried out as required or else they would not be accepted.

Early Arrival Recommendations

Allegiant suggests that when bringing a pet, one should come to the airport earlier than before. This is possible by arriving early enough to make sure there is ample time to check documents, confirm payments, and inspect the carriers. It is also useful in coping with the unexpected delays, since the acceptance of the pet depends on availability and final approval in airport.

Allegiant Pet Fee (Updated 2026)

The Allegiant pet fee is a mandatory fee charged per flight segment when travelling in-cabin. The knowledge of the one-way cost, refund option as well as accepted methods of payment assists the passengers in budgeting the cost of pet travelling properly.

One-Way Pet Fee 

Allegiant Air normally sets the fare of small dogs and cats at approximately 50 USD per flight segment on a one-way flight in the cabin. When you book your pet, or check-in to an airport, the pet fee has to be paid and once paid, it is not refundable. This charge is not included with your personal ticket cost and it is charged to all pets that can be accommodated under the seat. There are more sources that indicate larger or older fee charges, but the standard price that is currently quoted is the U.S. pet fee of $50 per segment.

If you are traveling with a pet, choosing the right row is vital. Read our article on picking the perfect flight seat for pet-friendly advice.

Refund Policy for Pet Fees 

  • Once the travel has started, pet fees are not refundable.
  • In the case of a flight cancellation by Allegiant, then the pet fee can be returned.
  • Pets may not be refunded their pet fees in case of voluntary cancellation.
  • On travel, fees can be credited in case of denial of the pet to travel by the airline.
  • The eligibility of a refund is dependent on the original fare rules.

Payment Method Accepted 

  • During online booking, it is possible to pay pet fees.
  • Customers can use major credit cards to make their payments.
  • Where possible, debit cards can also be used.
  • The payment of fees is possible via Manage Travel.
  • Counter payment of the airports is permissible, as long as it is available.

Service Dog & Emotional Support Animal Policy on Allegiant Air

Service Dog Policy (ADA Compliant) 

Allegiant Air does not violate ADA regulations as it allows trained service dogs to be with passengers with disabilities. Service dogs have to be harnessed or leashed, they should behave and must fit in the space of the passenger. The airlines can also check the purpose of the dog and make sure that the animal does not bother other passengers during the flight.

Required Documentation 

The passengers who bring service dogs on board might be asked to show some evidence of the training or task-oriented use of the dog. This incorporates the forms that confirm the health of the animal, the vaccination status and the behavior of the animal. Before boarding, documentation has to be provided, and verification of documents may be requested by the Allegiant staff members according to the ADA regulations and the flight safety standards.

Breed and Behavior Rules 

Allegiant Air must also have restrictions that guarantee safety and comfort. Dogs that are aggressive or unruly can not be picked up. There are no breed bans on service dogs but service dogs must exhibit calmness, always under control and must fit in the passenger space without disrupting or causing safety concerns.

Emotional Support Animal Update - No Longer Accepted as Pets 

Allegiant Air does not consider emotional support animals (ESAs) as in-cabin pets, nor do they consider service animals. Passengers are no longer able to travel under special accommodations with ESAs. The passengers will have to abide by the generic pet policies with in-cabin pets or utilize conventional carriers because ESAs will no longer get an exemption on seat or fee regulations.

Allegiant Pet Policy - Checked Baggage

Allegiant Air does not allow pets to be transported as a checked baggage or freight. The pets ought to be brought into the cabin together with their owners and they are assured of comfort, safety and compliance to the policies of the airlines as well as ensuring the same high standards of in-cabin safety.

Pets Not Accepted as Check Baggage 

Allegiant Air does not allow pets to be carried on board as baggage or conduct shipments in cargo compartments. The cabin under the seat is only allowed to carry small dogs and cats. This keeps pets in a passenger supervision and eliminates the possibility of risks of temperature, handling, or in-flight environment in the cargo.

Why Allegiant Limits Pets to Cabin Travel Only

In-cabin transport is safe as it is comfortable and provides pets with safety and adequate care on the flights. Allegiant is able to track the behavior of the pet, its health, and the state of the environment. Such a policy helps to avoid problems such as stress, injury, or overheating, which could take place in cargo areas. Cabin travel is also good, and it is easy to comply with the federal regulation and assure the passengers of their pet's well-being.

Allegiant Pet Policy- Air Cargo

The Allegiant Air is not able to offer air cargo accommodation of pets. Pets should be carried in the cabin along with their owners so that they are safe, comfortable and in accordance with an airline's in-cabin pet policy.

Does Allegiant Ship Pets as Cargo?

No, Allegiant Air does not transport pets. Only small dogs and cats are allowed that would satisfy in-cabin requirements. Pets are not allowed to be carried in hold baggage or separately, and therefore, the owner has to carry pets in the flight using approved carriers.

Alternative Shipping Options for Large Pets 

Professional pet transport takes place when pets are too large to be transported in-cabin; examples of these include:

  • Pet moving companies that deal with safe air or ground transportation.
  • Long-distance transportation by ground.
  • Other airlines that permit cargo or special pet carriage.
  • These services offer travel supplying climate-controlled, monitored transportation so pets of big size get to their destination safely.

Private Jet Charter for Pet Travel (Alternative Option)

The charter business of large and multiple pets provides flexible and pet-friendly options to traveling with pets in a private jet. The owners will have the advantages of customized travel, fewer limitations, and greater control over comfort, timing, and in-flight care of pets.

When Charter Flights May Be a Better Choice

Charter flights are the most suitable in cases where pets are larger than the airline in-cabin airline size limits, or when they require to travel jointly in large numbers. They offer stressful free atmosphere and commercial flight restrictions are not limited and customized schedules. The owners will be able to follow their pets during the journey, which will make them safe and less anxious about their pets and passengers.

Benefits for Large Dogs or Multiple Pets 

Large dogs or multiple pets can be taken on board safely by private charters without having to worry about cabin size limitations. Pets are free to move around in the restricted zones, are given all-time attention and provided with climate-controlled systems. There is no specific time, boarding procedures and carrier policies that bind the owners and make traveling simpler and less stressful to pets and their owners.

Tips for Flying with Pets on Allegiant Air

  1. Pre-Flight Preparation: Before you take your pet on a plane, ensure that he/she is in good health by being vaccinated and that the carrier meets the size standard in Allegiant.Have the carrier used to which your pet to reduce stress. Make an early reservation of your pet, verify the reservation and pack stuff such as a leash, waste bags, and medications. Adequate preparation will result in a hassle-free travel experience for both the pet and its owner.
  2. Feeding & Hydration Tips: To avoid the inconvenience and nausea in your pet, a little light meal a few hours before the flight will be beneficial. Limit water to before boarding time but should not over drink lest you run into accidents. Bring along a small collapsible bowl in order to use as an in-flight hydration. New treat and large meals should be avoided as it is necessary to be sure of calmness and comfort during the journey.
  3. Reducing Pet Anxiety: Help to eliminate pet anxiety by introducing the pets to the carrier before traveling. Put familiar blankets or toys in the carrier to make it comfortable. Talk in a low-tone voice and provide comfort during boarding and takeoff. Do not use sedatives without a prescription by a veterinarian as it can be hazardous to health. A relaxed pet promises more enjoyable and safer flights.

Allegiant Pet Policy vs Other Airlines

Allegiant Air has simple in-cabin pet transportation policies, which in many cases are less complex and less expensive than those of the major air companies. The policy comparison can be used to boost the comfort, convenience, and cost for pet owners.

Comparison with Delta, United, American

Airline

Pet Travel Option

Fee (One-Way)

Restrictions

Allegiant Air

In-cabin only

$50

One pet per passenger, carrier under seat, no cargo pets

Delta Air Lines

In-cabin & cargo

$125-$200

Breed restrictions, size limits, advanced documentation

United Airlines

In-cabin & cargo

$125-$200

Health forms, age limits, carrier size rules

American Airlines

In-cabin & cargo

$125-$200

Breed/weight limits, health forms required

Why Allegiant May Be Better for Pet Owners

The pet policy of Allegiant Air is cheaper and less complicated as it has a lower charge and less complicated paperwork than the policies of major airline companies. Travel within the cabin is simple; it is easy to book and the restrictions are less. In small pets and one-pet travelers, Allegiant is a stress-free, cost-effective alternative, unlike larger airlines that are characterized by a lot of bureaucracy, which makes them more expensive.

Conclusion 

Finally, on domestic flights, Allegiant Air also allows small domestic dogs and cats to be carried in the cabin but with certain rules. The pets should also be transported in acceptable containers, be placed under the seat, and be healthy and behaviorally fit. Animals used as service animals are not subject to pet charges and they have different rules. Nevertheless, pets cannot be brought on board Allegiant flights to international destinations and to the U.S. territories because they only do domestic flights. People who intend to travel frequently with pets should find other airlines that offer services of transporting pets well.

Frequently Asked Questions

Can I buy an extra seat for my dog on Allegiant?

There is no, Allegiant Air does not sell an additional seat to pets. Any pets have to be carried in-cabin as an approved carrier under the seat.

How to add a pet to Allegiant flight

Include a pet on the online booking process for travel extras or through the change of travel on the manage travel option. Pay the pet fee to confirm.

What are the rules for taking a dog on Allegiant?

The dogs have to be small, in legal carriers beneath the seat and well-mannered and quiet animals with one pet per seat. Pets are not allowed to fly as checked baggage.

How strict is Allegiant with pet carrier size?

Allegiant is a carrier that strictly applies Allegiant pet carrier size restrictions. Carriers should be capacitated by means of fitting under the seat, ventilated, free of leakages, and such that the pets can sit, stand or turn without any inconvenience.

How many pets are allowed on any Allegiant flight?

There are only a few pets that can be carried on the flight and the number of pets carried is usually one dog to one passenger, depending on the availability of cabin space. It is advisable to book early.

How much does Allegiant Air charge for a pet fee?

Allegiant charges about 50 USD per passenger, per one-way flight. It is a non-refundable fee and is charged on every in-cabin pet.

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