Allegiant ESA and Psychiatric Service Dog Policy

Allegiant Main Takeaways:

  • Allegiant allows up to two fully trained service animals on their flights for passengers with disabilities.
  • Service animals must be well-trained and under control at all times during the flight.
  • Passengers need to submit the Service Animal Air Transportation Form at least 48 hours before departure.
  • Pets, other than service animals, can travel in the cabin under certain requirements.
  • Allegiant charges a $50 each-way fee for pets in the cabin.
  • There are no specific breed restrictions mentioned for pets, but the carrier must meet size requirements.
  • Pets must be healthy and at least eight weeks old to travel in the cabin.
  • Allegiant only allows domestic cats and dogs within the 48 contiguous United States, and they do not transport pets internationally or to U.S. territories.

Under Allegiant service dog policies, you can take up to two fully trained service animals with you on the plane if necessary to perform tasks or work for you related to your disability.

Any service animal you bring onto an Allegiant flight must be fully task trained and remain under control in the airport and on the plane. This means that the animal must always be on a leash, harness, or rope. An animal that displays disruptive behaviors, such as showing aggression by biting or growling or relieving itself in the terminal or the plane cabin, can be denied transport.

Allegiant does not allow animals in the exit row of the plane, but otherwise, you can choose any seat you want. Small dogs can sit in your lap; otherwise, your PSD must remain on the floor within your foot space. The dog cannot extend into the aisle nor the foot space of another passenger, so if your dog is larger than your foot space, you may have to purchase an extra seat to allow adequate room while remaining compliant.

Allegiant’s Required Documentations

The only form that Allegiant lists on its website as required to fly with a PSD is the Service Animal Air Transportation Form provided by the Department of Transportation.

Advanced Notice

Allegiant requires that you provide notice of your intention to fly with a service animal and submit documentation at least 48 hours before your scheduled departure. You can send the form by mail to the following address: Allegiant Travel Company, Attn: ACAA Team, P.O. Box 371477, Las Vegas, NV 89137. You can also email the completed form to [email protected]. If you have questions, you can call customer care at 702-505-8888.

Traditionally, pets other than service animals have had to fly in the cargo bin on the plane. However, Allegiant does not transport pets by cargo storage. Dogs and cats can travel in the cabin if certain requirements are met. Travelers must check in with an Allegiant agent at least one hour before departure to ensure compliance. Allegiant considers ESAs to be pets.

Allegiant’s Pet Fees

Allegiant charges an each-way fee of $50 to travel with pets in the cabin. This is a non-refundable fee.

Allegiant’s Breed Restrictions

The current pet policy page on Allegiant’s website does not specifically mention any breed restrictions, though it does limit pet transport to dogs and cats. The policy does require that pets must be transported in a carrier of a certain size, which would exclude large dog breeds.

Allegiant’s Pet Carrier Size Requirements

Allegiant limits each passenger to one pet carrier, which can contain no more than two pets. The pet carrier cannot be larger than 16 inches wide, nine inches high, and 19 inches deep. It must be fully enclosed and leak-proof, and while it can be hard-sided or soft-sided, Allegiant recommends the latter. Pets must remain entirely in the carrier at the airport terminal and during the flight, and the page must remain on the floor during take-off and landing.

*This also means that pets must fit into the carrier comfortably and without protruding out at all. 

It’s important to note that having a pet carrier counts as one of the two items you allow on the aircraft. In other words, if you have a pet carrier, you may also have a personal item or a paid carry-on bag, but not both.

Allegiant’s Travel Requirements

Allegiant requires that any pets traveling in the cabin be healthy but does not require a health certificate. Any animals traveling with you must be at least eight weeks old, non-disruptive, harmless, odor-free, and not physically distressed.

Allegiant also does not assume any responsibility for the health or well-being of your pet. Pets can be handled only by the traveler with them. Travelers with pets cannot sit in an exit row, the row ahead of or behind an exit row, or in a seat in the bulkhead. 

*Noncompliance to these requirements may result in Allegiant prohibiting your pet from boarding future flights.


Allegiant only transports domestic cats and dogs within the 48 contiguous United States.


Allegiant does not transport pets to U.S. territories or international destinations.