7 Best Airline for Cats: The Ultimate Worry-Free Guide

By Jessica Monroe | Reviews

Oct 02

Finding the best airline for cats can feel overwhelming. You worry about your beloved pet’s safety, comfort, and the confusing maze of airline policies. Choosing the wrong carrier, for instance, can lead to being denied boarding. Furthermore, navigating security presents its own set of challenges. We understand these concerns completely. That is precisely why we’ve created this definitive guide. We’ve done the heavy lifting for you. After extensive research into policies and fees, we’ve broken down the top options. Ultimately, our goal is to help you find the best airline to fly with a cat, ensuring a smooth and stress-free journey.

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How to Choose the Best Airline for Your Cat: Key Factors

Before diving into the specific reviews, it is crucial to understand the core factors. Crucially, these elements separate an acceptable airline from an excellent one. Not all policies are created equal. For example, what works for a tiny kitten certainly won’t work for a large Maine Coon. Understanding these factors is the first step to finding the best airline for cats.

Understanding In-Cabin Pet Fees

First and foremost, the cost to fly with a cat is a primary consideration. Airlines charge these fees each way, and they are non-negotiable. These fees can range from under $100 to over $150. As a result, this can significantly add to your travel budget for a round trip. Below, we break down the airline pet fees for cats by carrier.

Cat Carrier Requirements for Airlines: Size Matters

This is one of the most critical factors you’ll face. Every airline has strict maximum dimensions for pet carriers. This rule exists for a simple reason: the carrier must fit under the seat in front of you. A soft-sided cat carrier for plane travel is almost always recommended because it offers more flexibility. Therefore, you must always measure your cat and your carrier carefully. Failing to meet the airline approved cat carrier dimensions is a common and heartbreaking reason for being denied boarding.

Weight Limits: A Crucial Factor for Larger Breeds

In addition to size, many airlines impose a combined weight limit for your cat and its carrier. Usually, this limit is around 20 pounds. This can immediately disqualify heavier cat breeds. For this reason, knowing what is the weight limit for a cat in cabin is essential. For owners of larger cats, finding airlines with highest weight limit for pets becomes the number one priority.

Quick Comparison of the Best Airlines for Flying with Cats

A Detailed Review of the 7 Best Airlines for Cats in the USA

Here is our in-depth analysis of the top airlines that allow cats in cabin. Each is tailored to different traveler needs. This will help you find the perfect match for your journey.

1. Alaska Airlines: A Top Contender for the Best Airline for Cats

Alaska Airlines consistently earns its reputation as a top-tier pet-friendly airline. Their policies are clear, and their staff is well-trained. Additionally, their highly regarded “Pet Connect” cargo service provides a reliable backup.

  • Pet Fee: $100 each way.
  • Carrier Dimensions: 17″ L x 11″ W x 9.5″ H (Soft-sided).
  • Weight Limit: 20 lbs combined.
  • Pros: Stellar reputation. Flexible policies allow a second carrier with a purchased seat. Staff are competent.
  • Cons: In-cabin spots are limited, so you must book immediately by phone. Also, recent policy changes have removed some options for larger pets.
  • Verdict: Ultimately, the Alaska Airlines cat policy in cabin makes it an excellent choice for the “Peace of Mind Planner.” If you prioritize a carrier with a stellar reputation, this is a top option.

2. Delta Air Lines: Is it the Best Airline for Cats Who Need Predictability?

For the traveler who values structure, the Delta airlines cat policy is unmatched. While it is less flexible than others, the policy leaves little room for ambiguity. This clarity can be a huge comfort for anxious travelers.

  • Pet Fee: 95–95–150 each way (depending on booking date).
  • Carrier Dimensions: 18” L x 11” W x 11” H (Soft-sided).
  • Weight Limit: No specific limit is stated for in-cabin use.
  • Pros: Extremely detailed policies. A professional reputation. Strong cargo service as a backup.
  • Cons: The policy on flying with two cats in cabin is very strict (not allowed for a single passenger). The fee can also be higher, and check-in must be done at a special counter.
  • Verdict: For these reasons, this airline is perfect for the “Meticulous Planner.” Specifically, if you’re traveling with only one cat and want every rule in advance, Delta is a solid, predictable option.

3. Spirit Airlines: The Best Airline for Cats That Are Large

For owners of larger breeds, like Maine Coons, Spirit is often the only choice. In fact, their industry-leading weight allowance makes them a haven for bigger felines. This easily makes it the best airline for cats in this specific category.

  • Pet Fee: $125 each way.
  • Carrier Dimensions: 18″ L x 14″ W x 9″ H (Soft-sided).
  • Weight Limit: A massive 40 lbs combined.
  • Pros: The most generous weight limit in the industry by far. Additionally, booking a “Big Front Seat” provides ample space.
  • Cons: Standard seats have very limited space. The pet fee is non-refundable. Also, as a budget airline, agent discretion can be inconsistent.
  • Verdict: The Spirit Airlines cat policy makes it the undisputed winner for the “Owner of a Large Cat.” No other airline comes close to accommodating heavier pets.

4. Southwest Airlines: The Best Airline for Cats When Plans Might Change

Southwest stands out for its unique combination of friendly service and a flexible pet policy. Indeed, their customer-first approach extends to four-legged passengers as well. This flexibility is a key reason many consider it a top choice.

  • Pet Fee: $125 each way (fully refundable).
  • Carrier Dimensions: 18.5″ L x 13.5″ W x 8.5″ H (Soft-sided).
  • Weight Limit: None stated; cat must fit comfortably.
  • Pros: The only refundable pet fee airline. Consistently friendly staff. Agents don’t typically measure carriers.
  • Cons: You must pay the fee at the ticket counter. The pet carrier counts as a carry-on item. Moreover, the open seating policy creates uncertainty.
  • Verdict: Because of its unique fee policy, the Southwest Airlines cat policy is ideal for the “Flexible Planner.” The refundable fee provides unparalleled peace of mind.

5. JetBlue: The Best Airline for Cats and Tech-Savvy Owners

JetBlue offers a modern, streamlined experience for pet travel, which makes it incredibly easy to manage your booking online. Combined with its reputation for more legroom, it’s a fantastic option if you have a smaller cat.

  • Pet Fee: $150 each way.
  • Carrier Dimensions: 17″ L x 12.5″ W x 8.5″ H (Soft-sided).
  • Weight Limit: 20 lbs combined.
  • Pros: You can book and pay for your pet entirely online. Generous legroom provides more space. The “JetPaws” program also awards loyalty points.
  • Cons: The pet fee is high. Plus, the carrier dimensions and weight limit are strict and smaller than average.
  • Verdict: The JetBlue cat policy is perfect for the “Tech-Savvy Planner” with a smaller cat. If you value digital convenience, this is a great choice.

6. American Airlines: A Solid All-Rounder in the Search for the Best Airline for Cats

The American Airlines cat policy offers a solid middle ground. Recent improvements, for instance, make it more attractive for domestic travelers. Meanwhile, its extensive network makes it a go-to for more complex travel. It’s worth comparing to United airlines pet in cabin for long-haul routes.

  • Pet Fee: $150 each way.
  • Carrier Dimensions: 18″ L x 11″ W x 11″ H (Soft-sided).
  • Weight Limit: 20 lbs combined (only on specific A321T aircraft).
  • Pros: Allows online reservation addition. A recent policy change also allows a standard carry-on in addition to the pet carrier. The airline has an extensive global network.
  • Cons: You must pay the fee at the airport, which can mean long lines. The booking process can be confusing, so it’s best to call to confirm.
  • Verdict: This is a top choice for both the “Domestic Planner” and the “International Relocator.” The new carry-on allowance is a major benefit.

7. Frontier Airlines: The Best Budget Airline for Flying with a Cat

When cost is the most critical factor, the Frontier Airlines cat policy is impossible to beat. Their no-frills approach extends to pet travel. This results in the lowest fee in the industry for a straightforward domestic trip.

  • Pet Fee: $99 each way.
  • Carrier Dimensions: 18″ L x 14″ W x 11″ H (Soft-sided).
  • Weight Limit: None Stated.
  • Pros: Consistently the lowest pet fee available. No health certificate is required for most domestic flights. You can also add your pet online.
  • Cons: A mixed customer service reputation can cause anxiety. Also, only one pet is allowed per passenger. The in-flight experience is very basic.
  • Verdict: For the “Budget-Conscious Traveler” on a simple domestic route, Frontier’s low fee makes it the clear winner.

Expert Advice for Flying on the Best Airline for Cats

However, choosing an airline is only half the battle. Consequently, we consulted experts for advice on flying with a cat in cabin USA.

On Sedation & Health Certificates (Veterinarian’s Perspective)

Dr. Anya Sharma, DVM, warns: “We strongly advise against sedating cats for air travel. At high altitudes, for instance, sedatives can cause respiratory problems. Instead, you should focus on acclimating your cat to its carrier. Regarding health certificates, always get one, even if the airline doesn’t require it. A state official can legally ask for it at your destination.”

On Managing Cat Anxiety (Feline Behaviorist’s Perspective)

Corrine Vogel, a Certified Feline Behavior Consultant, emphasizes preparing a cat for a flight: “A cat’s terror doesn’t start on the plane. It begins with a carrier that only appears once a year. Weeks before your flight, book a five-star hotel with the carrier. For example, leave it open with treats inside. This process transforms the carrier from a source of fear into a safe den.”

The expert advice above is crucial for your cat’s well-being. To dive deeper into every aspect of the journey, our complete guide on how to travel with a cat offers 21 practical tips for a happy trip. For now, here is a quick pre-flight checklist to get you started:

Pre-Flight Checklist for Flying on the Best Airline for Cats

✅ 1-2 Months Before

  • Book Your Flight & Cat’s Spot: First, book your ticket. Then, immediately call the airline to reserve your cat’s spot.
  • Purchase a Carrier: Choose the best cat carrier for air travel that fits your airline’s dimensions.
  • Begin Acclimation: Make the carrier a safe and happy place for your cat.

✅ 2-4 Weeks Before

  • Schedule a Vet Appointment: Book an appointment 7-10 days before departure.
  • Check Requirements: Confirm any specific rules for your destination, like the need for cat vaccination records for air travel.

✅ 7-10 Days Before

  • Visit the Vet: Learn how to get a health certificate for cat travel from your vet. Be sure to get multiple copies.
  • Assemble a Folder: Include the certificate, records (like the USDA APHIS pet travel certificate if needed), and a photo of your cat.

✅ Day Before Travel

  • Pack Your Cat’s Bag: Include food, a water bowl, and pee pads.
  • Confirm Your Reservation: Double-check that your cat is on your reservation.
  • Withhold Food (Vet-Approved): Do not feed your cat for 4-6 hours before the flight.

How-To Guide: Airport Procedures with the Best Airlines for Cats

Step 1: Airport Arrival & Check-in

First, arrive at least 2 hours early. Then, go directly to the full-service ticket counter to check in your cat and pay the fee.

Step 2: Approaching TSA Security

Next, inform the first agent that you are taking a cat through airport security. Your carrier must go through the X-ray machine empty.

Step 3: The Screening Process

Understanding the TSA rules for flying with a cat is critical. You must take your cat out of the carrier. After that, you will walk through the metal detector holding your cat. To prevent an escape, we strongly recommend you request a private screening room TSA pet check.

Step 4: Post-Security & Gate

Once clear, secure your cat in its carrier. Find one of the pet relief areas in airports if needed. Finally, proceed to your gate.

FAQ: Finding the Best Airline for Cats

Q: Can I buy a seat for my cat on a plane?

A: This policy varies. For instance, JetBlue and Alaska Airlines are known for allowing this. However, airlines like Delta strictly forbid it. You should always call to confirm the current policy.

Q: How much does it cost to fly with a cat in the cabin?

A: Airlines charge pet-in-cabin fees for each flight segment. They typically range from $99(Frontier)– $150 (American, JetBlue). Remember to budget for a round trip.

Q: Which airline is best for my large cat (e.g., a Maine Coon)?

A: Spirit Airlines is the definitive choice. Its 40-pound weight limit is by far the most generous. As a result, it is often the only viable option for owners of larger cats.

Q: Do I really need a health certificate for a domestic flight?

A: Although some airlines don’t require it, getting one is highly recommended. It is official proof of your cat’s health. Furthermore, your destination state may require it upon arrival.

Q: Can I take my cat out of the carrier during the flight?

A: No. FAA regulations strictly require that your cat remain fully inside its carrier at all times. The carrier must be stowed under the seat in front of you for the entire flight.

Final Verdict: Choosing the Best Airline for Your Cat

Choosing the best airline for flying with a cat depends entirely on your specific needs. There is no single “best” for everyone. However, there is definitely a best for you.

  • If you have one of the largest cats, your choice is clear: Spirit Airlines.
  • Travelers who require maximum flexibility should consider Southwest Airlines for its refundable fares.
  • The best online booking experience, especially with a small cat, is delivered by JetBlue.
  • Finally, for a fantastic all-around reputation and peace of mind, you can’t go wrong with Alaska Airlines.

By matching your priorities with the right carrier, you can turn a stressful trip into a successful one. Ultimately, by following this guide, you are now equipped to choose the best airline for cats and ensure a safe journey.

About the Author

Jessica Monroe is a U.S.-based writer, cat mom, and founder of Pawfun.pet — a niche site dedicated to helping pet owners travel smarter with their furry companions. With over a decade of experience in content creation and outdoor adventure, Jessica blends personal insight with practical advice to make pet-friendly travel easier, safer, and more enjoyable.