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Allegiant Air Pet Fees — Costs & Charges (2025)

By flightshelpcenter

Published on December 11, 2025

If you’re planning to fly with a dog or cat on Allegiant Air, understanding the airline’s in-cabin pet fee structure is essential. Allegiant Air Pet Fees follows a simple model—$50 per segment—but the way the airline defines a “segment,” the limitations of routes, and the restrictions on carrier type can all impact how much you actually pay. Because Allegiant doesn’t support online pet booking, travelers must confirm fees at the airport or call in advance to verify their itinerary. If you’re unsure how much your trip will cost with a pet, assistance is available at +1 (866) 558-3017.

This guide breaks down everything you need to know about Allegiant Air pet fees, how they’re charged, what they include, and the cost traps passengers often overlook.

Quick Overview: Allegiant Air Pet Fees (2025)

Allegiant charges a $50 in-cabin pet fee per segment for small dogs and cats. The fee is non-refundable and paid at airport check-in after the pet and carrier are verified. Because the fee is charged for each individual flight leg, the total cost depends on your routing. Allegiant does not offer cargo pet transport, so only pets that fit under the seat qualify.

Key Highlights:

$50 per segment (per flight leg)
Paid at the airport counter
Applied to each carrier, even if two pets share it
Non-refundable even if denied for carrier size or behavior
Pet counts as your carry-on item
No cargo service → no large pet travel
Domestic routes only

How Allegiant Air Pet Fees Are Charged (Explained Clearly)

Allegiant calculates pet fees based on segments, not on your full itinerary. A segment is every takeoff-to-landing cycle.

So, your fee is based on:

How many flight legs you have
Whether your trip is one-way or round-trip
Whether your route includes connections

This means a one-stop itinerary costs double the fee of a nonstop route—even if the price of the flight is the same.

Why Allegiant charges per segment

Allegiant assesses the pet fee each time the pet boards a new aircraft. This ensures the pet is counted, checked, and verified for each flight, keeping operations consistent across the network.

If you’re unsure how many segments your booking includes, you can confirm at +1 (866) 558-3017.

Allegiant Air Pet Fee Examples (Most Travelers Don’t Know This)

Here’s how much you will actually pay depending on itinerary type:

Nonstop Round-Trip Flight

$50 outbound
$50 return
Total: $100

One-Way Flight With 1 Stop (2 Segments)

$50 for segment 1
$50 for segment 2
Total: $100 one-way

Round-Trip Flight With 1 Stop Both Ways (4 Segments)

4 segments × $50
Total: $200

Two Pets in One Carrier

Fee applies to the carrier, not the number of pets
Total: still $50 per segment

Change Fee Scenario

If you change flights or reroute your itinerary, you may incur:

Additional pet fees
Additional segments
Higher total cost

Travelers often confirm ahead of time by calling +1 (866) 558-3017 to avoid unexpected fees.

What the Allegiant Pet Fee Covers (and What It Doesn’t)

Your $50 pet fee covers:

In-cabin travel for one carrier
Space under the seat
Verification of pet + carrier
Handling at check-in

But the fee does NOT include:

Priority boarding
Additional carry-ons
Pet amenities (Allegiant provides none)
Health certificates
Seat selection
Connecting flight pet approval

It is simply the fee for permission to bring a pet in the cabin.

When the Allegiant Pet Fee Is Non-Refundable

Allegiant will not refund the pet fee if:

Your pet doesn’t fit the carrier
Your carrier exceeds size limits
Your pet shows disruptive behavior
You voluntarily change flights
Weather or operational issues arise
You decide not to fly

The fee becomes locked in the moment the agent verifies your pet at check-in.

Why Allegiant’s Pet Fee Is Lower Than Other Airlines

Most U.S. airlines charge $100–$125 one-way for in-cabin pets. Allegiant is cheaper at $50, but the lower fee reflects:

No cargo pet service
No international pet acceptance
No premium cabin layouts
Limited route network

Allegiant’s model is simple, but extremely restrictive. If your pet doesn’t meet in-cabin rules, Allegiant cannot transport them on any route.

How to Pay the Allegiant Pet Fee (Step-by-Step)

You cannot pay online. Allegiant collects pet fees at the airport only.

How it works:

Arrive early
Check in at the airport counter
Agent verifies the carrier size
Agent verifies the pet’s condition
You pay the $50 per segment
You receive documentation/boarding notation

If you skip the counter, you cannot board with your pet. For help confirming eligibility, you may call +1 (866) 558-3017.

Does Allegiant Charge Extra Fees for Pet Carriers or Weight?

No. Allegiant does not charge extra for:

Pet weight (as long as pet fits in carrier)
Pet size (beyond carrier guidelines)
Multiple pets in one carrier (if allowed)

The only extra costs come from:

Additional flight segments
Baggage fees (since pet carrier uses your carry-on allowance)
Seat selection fees
Change fees

The pet fee itself remains fixed at $50 per segment.

Conclusion

Allegiant Air’s pet fees are simple, consistent, and lower than most U.S. carriers, but the airline’s restrictions also mean fewer options for travelers with pets. Because Allegiant allows only small dogs and cats, charges per segment, and requires airport verification for every pet, passengers should plan carefully to avoid surprises. Booking nonstop routes, measuring your carrier in advance, and confirming itinerary details can help you minimize costs and ensure your pet is accepted at the airport. For personalized guidance or eligibility checks, support is available at +1 (866) 558-3017.

Frequently Asked Questions

Why does Allegiant charge $50 per segment for pets?

Allegiant charges per segment because each takeoff-to-landing cycle requires new verification of your pet and carrier. The crew must confirm compliance for every leg, so fees aren’t combined even on a single itinerary. If your trip includes connections, you’ll pay more in pet fees, so verifying routing beforehand is important.

Is Allegiant’s pet fee refundable if my pet is denied boarding?

No. The $50 pet fee is non-refundable once processed at check-in. If your pet becomes disruptive, the carrier is oversized, or your schedule changes, Allegiant won’t refund the fee. Measuring your carrier and confirming eligibility ahead of time helps avoid issues.

Does Allegiant charge extra for two pets in one carrier?

No. Allegiant charges per carrier, not per pet. Two small, compatible pets may share one carrier within the 9″ × 16″ × 19″ limits for a single $50 fee per segment. However, if crowding or stress occurs, the airline may deny travel.

Can Allegiant pet fees increase based on route or season?

No. Allegiant keeps a flat pet fee of $50 per segment year-round. The only factor that increases cost is the number of flight segments. Since Allegiant doesn’t allow pets on international flights, the policy applies only to domestic routes.

How can I reduce my total pet travel cost on Allegiant?

Book nonstop flights to reduce total segments, since each one adds a $50 fee. Use your personal item smartly because the pet carrier replaces your standard carry-on. Many travelers confirm rules or eligibility ahead of time at +1 (866) 558-3017 to avoid extra charges.