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 Petmate Pet Porter Fashion Dog Kennel is a solid choice for small to medium dogs weighing between 15-20 pounds, matching Southwest Airlines' pet carrier requirements well due to its airline-friendly size and design. Measuring about 24 by 16.5 by 14.5 inches, it offers enough room for your pet to stand, turn around, and lie down comfortably, which is key for your furry friend’s comfort during travel. Ventilation is thoughtfully included on four sides, ensuring good airflow and visibility, so your pet can breathe easily and stay calm. The durable plastic shell makes this carrier sturdy and easy to clean, which is especially handy in case of accidents during trips. Inside, a stay-dry moat helps keep your pet dry by directing fluids away.

Security is addressed with a strong wire door and easy-open latch that keeps your pet safely inside while allowing quick access when needed. The fold-down handle adds convenience by making the carrier easier to carry. Assembly requires no tools, making it user-friendly for anyone. It also has a small built-in storage spot for essentials like treats or ID tags, which is a nice touch for travel convenience.

On the downside, at around 4.5 pounds, it’s a bit heavier than some soft-sided carriers, which might be less comfortable if you plan to carry it for long periods. The hard plastic design, while protective, may not be as flexible or packable as soft carriers. This carrier provides a good balance of safety, comfort, and practicality for pet owners needing a reliable, airline-approved option for their small dogs.

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.