10 Best Southwest Approved Pet Carrier 2026 in the United States

The Petskd Top-Expandable Pet Carrier with Wheels is a versatile and convenient option for pet owners traveling with airlines like Southwest and Allegiant. It measures 18x13x9.5 inches, making it suitable for small pets. The carrier features mesh ventilation on five sides, ensuring your pet gets plenty of fresh air and you can easily check on them. The material used is waterproof and scratch-resistant polyester, providing durability and protection against wear and tear.

Comfort-wise, it offers a smooth travel experience thanks to its high-quality, 360° rotating wheels. These wheels can be removed, allowing the carrier to be used as a shoulder bag or handbag when needed. Security is well-addressed with locking safety zippers and a built-in adjustable rope buckle to keep your pet secure inside. The sturdy frame ensures the carrier maintains its shape and does not collapse.

One downside is the carrier's weight—7.05 pounds—which might be a bit heavy when carrying. Additionally, it's essential to check your pet's dimensions, as it is designed for small pets under 12 pounds. The carrier also comes with a 12-month warranty, which provides some peace of mind regarding its quality and durability. This carrier is best suited for those who frequently travel with small pets and need a reliable, airline-approved option that offers both convenience and security.

The pidipiti TSA-approved rolling pet carrier is designed specifically to meet size requirements for airlines like Southwest and Spirit, making it a solid choice for small dogs or cats under about 8 pounds and 17 inches in length. Its compact dimensions (18 x 13.5 x 9 inches) ensure it fits under airplane seats, though it is not approved for some other airlines like Delta or Alaska. One standout feature is the expandable top with mesh panels on five sides, which boosts ventilation and gives your pet a 360-degree view, enhancing comfort during travel. The carrier's soft polyester material, combined with soft padding inside, adds to your pet’s comfort.

The metal base with four double wheels and an adjustable double pull rod make it easy to roll through airports, and you can detach the carrier from the base to stow it under seats. Security is addressed through locking zippers, but damage caused by pets biting or scratching isn’t covered by the warranty. The carrier includes two side pockets for small essentials, which is handy for quick access. However, the carrier is on the heavier side at 6.5 pounds, and while roomy for pets under 8 pounds, it can feel tight if your pet is near the upper limit of the size recommendations.

This carrier suits short trips, like flights or vet visits, rather than longer journeys. If you have a slightly larger pet or need compatibility with other airlines, this might not be the best fit. For small pets traveling on Southwest or Spirit, it offers a convenient, comfortable, and well-ventilated option with thoughtful features like rolling wheels and an expandable top.

The Petskd Top and Side Expandable Pet Carrier is designed specifically for small pets (dogs under 10 lbs and cats under 12 lbs) and meets Southwest Airlines’ under-seat size requirements. Its folded dimensions (18x13x9.5 inches) make it a good fit for traveling on Southwest and some other airlines, which is great if you need a reliable, approved carrier. It offers excellent ventilation with mesh panels on five sides, helping your pet stay cool and allowing you to keep an eye on them during travel. The carrier is made of durable, waterproof polyester with reinforced mesh to resist scratching and prevent escape, which adds peace of mind and longevity to the product.

Comfort-wise, it features an expandable top and side sections that increase space by about 80%, letting your pet sit, stand, or stretch when not restricted by airline rules. Security is well addressed with locking zippers, a collar buckle, and a sturdy frame that prevents sagging or collapsing. The carrier also includes practical extras like a shoulder strap and washable mats, making it easy to carry and clean.

This carrier is suitable only for very small pets, which limits its use if you have a larger animal. Also, you need to fold down the expandable parts during flights to meet size restrictions, which reduces space for your pet at that time. Pet owners flying Southwest with small dogs or cats will find this carrier a safe, breathable, and airline-compliant travel option.