10 Best Southwest Approved Pet Carrier 2026 in the United States

The Sleepypod Air In-Cabin Pet Carrier is a solid choice for travelers needing a Southwest-approved carrier for small pets up to about 17.5 pounds. Its size is thoughtfully designed to meet airline requirements while still providing enough room for your pet to sit or lie down comfortably. The carrier features a sturdy nylon exterior combined with soft Ultra Plush polyester inside, which adds comfort and a cozy feel for your pet. It’s clever that the carrier can compress in height to save space when not in use, making storage easier.

Ventilation is handled well with mesh panels that let fresh air in while allowing your pet to see outside and feel less confined. Security is taken seriously through strong zippers and a padded shoulder strap, which helps you carry your pet safely and comfortably. The carrier also opens from the top and ends, making it simpler to get your pet in and out without stress. One of its strengths is the machine-washable plush bedding, which keeps things clean and fresh during travel. Large zipper pockets on both sides give you handy storage for treats or documents.

This carrier might feel a bit narrow for pets near the upper weight limit, and while it’s lightweight for its size, some might find 4.5 pounds a little heavy compared to other soft carriers. It is ideal for small dogs and cats who travel frequently by air or car and whose owners value comfort and security. Its durable materials and thoughtful features make it a reliable option, especially if you want a carrier that doubles as a pet bed. For pets on the larger side or if you need something ultra-light, comparing other models might be beneficial.

The Sherpa Original Deluxe Travel Pet Carrier in Charcoal Gray is a versatile and travel-friendly option for pet owners. Sized at 19 inches long, 11.5 inches wide, and 11.75 inches high, it fits pets up to 22 pounds, making it suitable for small dogs and cats. The patented spring wire frame allows the rear end to be pushed down to fit comfortably under seats, meeting the requirements for domestic rail and air travel, including Southwest Airlines. Ventilation is well-considered, with mesh panels ensuring plenty of air flow, and escape-proof locking zippers for added security.

The carrier’s comfort features include a removable and machine washable cozy base liner and multiple entry points for easy loading of your pet. It's made from durable polyester, providing a robust yet soft-sided crate that can double for vet visits and daily outings. The padded handle and detachable shoulder strap offer flexible carrying options, while the large storage pocket and luggage strap that also serves as a seatbelt pass-through add to its practical design.

However, some owners may find the carrier slightly bulky for very tight spaces, and the weight limit requires careful consideration to ensure your pet isn't cramped. If ease of use and comfort for both pet and owner are top priorities, this carrier is a solid choice.

The Petskd Top-Expandable Pet Carrier is a solid option for travelers looking to bring their small pets on Southwest or Allegiant Airlines. Its dimensions (18x13x9.5 inches) are designed to fit comfortably under the seat, making it a great choice for pets weighing up to 12 pounds. One of its key strengths is the excellent ventilation; the mesh sides allow for airflow and visibility, so pets can enjoy the journey without feeling trapped. The structural design also stands out, with reinforced materials that prevent sagging and ensure stability, which is important for your pet's safety. Additionally, the locking zippers and adjustable rope buckle provide extra security to keep your pet safe during travel. The carrier is made from durable, waterproof polyester, which is vital for easy cleaning and longevity. Plus, it comes with a decent warranty, offering reassurance in case of any quality issues.

On the downside, the carrier is only suitable for small pets, which limits its appeal to pet owners with larger animals. It’s essential to check your pet's dimensions before purchasing, as not all small pets will fit comfortably. While the material is scratch-resistant, some users may find that the mesh can be vulnerable to sharp claws over time, despite it being upgraded to resist tearing. Also, the carrier being machine washable is a plus, but frequent washing could wear down the materials more quickly.

This carrier suits pet owners who travel frequently with small cats, dogs, or even rabbits, offering a comfortable and secure traveling experience. However, potential buyers should ensure their pets fit the specified size limits to avoid issues during travel.