A Guide to Airline Under-seat Pet Carrier Dimensions
For more carrier information please visit the following pages:
Traveling with your pup? One of the first questions that comes up is:
Will the Air Pup fit under the seat?
We've compiled a quick-reference guide to the underseat dimensions for major U.S. airlines, along with notes on how the Air Pup Travel Carrier fits within their requirements.
Airline Underseat Pet Carrier Dimensions
| Airline | Max Dimensions (L x W x H) | Air Pup Fit? | Source |
|---|---|---|---|
| Alaska Airlines | 17" x 11" x 9.5" | ✔️ | Alaska Airlines Pet Policy |
| American Airlines | 18" x 11" x 11" | ✔️ | American Airlines Pet Policy |
| Delta Air Lines | 18" x 11" x 11" | ✔️ | Delta Airlines Pet Policy |
| JetBlue Airways | 17" x 12.5" x 8.5" | ✔️ | JetBlue Pet Policy |
| Southwest Airlines | 18.5" x 13.5" x 8.5" | ✔️ | Southwest Pet Policy |
| Spirit Airlines | 18" x 14" x 9" | ✔️ | Spirit Airlines Pet Policy |
| United Airlines | 18" x 11" x 11" | ✔️ | United Airlines Pet Policy |
| Frontier Airlines | 18" x 14" x 8" | ✔️ | Frontier Airlines Pet Policy |
Note: These dimensions are for soft-sided carriers and may vary slightly depending on the aircraft model. Please note that this information may change without our knowledge, you should always confirm with your airline before flying.
Why the Air Pup Works So Well for Flying
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Compact yet roomy: Fits under most airline seats while still giving your dog space to relax.
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Removable wheels: Use them for airport travel, then slide them off to tuck under the seat.
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TSA-ready: Zip-open front and breathable mesh meet airline requirements.
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Comfort-first: Built-in memory foam, ventilation panels, and safety clips for a stress-free journey.
Pro Tip: Measure Before You Go
Each airline can have slightly different seat dimensions depending on the plane model and your seat location (aisle vs. window vs. bulkhead).
We recommend bringing a soft measuring tape and calling the airline ahead of time, especially for international flights.
Travel Well, Travel Together.
The Air Pup Travel Carrier was built for real adventures with your dog. Whether you're heading across the country or just across town, we've got your pup’s comfort (and carry-on compatibility) covered.
