Do you know if these are approved for Southwest Airlines?
Per Southwest’s website:
"Your pet carrier must be able to fit under the seat in front of you. Acceptable pet carriers include the Southwest Airlines Pet Carrier (17” long x 10.5” high x 10” wide), and other pet carriers with maximum dimensions of 18.5” long x 8.5” high x 13.5” wide.
Customers may bring a soft or hard-sided pet carrier that is leak proof and well ventilated. The pet carrier must be small enough to fit under the seat in front of the Customer and be stowed in accordance with Federal Aviation Administration regulations. The dog or cat must be able to stand up and turn around in the carrier with ease."
This carrier is 17.8 x 11.1 x 13.7 inches and is too tall to fit under the airline seat.