Standard Under-Seat Soft Pet Carrier Dimensions (18 x 11 x 11 Inches)
Delta, United, American, JetBlue, and Alaska allow small dogs and cats in the cabin inside a ventilated soft-sided carrier that fits completely underneath the seat in front of you (typically 18 x 11 x 11 inches), for a one-way pet-in-cabin fee of $100 to $150.
Why You Must Confirm Pet Quotas Immediately After Booking
Airlines cap the total number of in-cabin pets per flight (usually 4 to 6 pets in Economy) and prohibit in-cabin pets on bulkhead rows, exit rows, and many flat-bed international Business Class seats due to lack of under-seat stowage.
International Destination Restrictions (UK, Hawaii, Australia, Japan)
The United Kingdom (LHR/LGW/EDI), Australia, New Zealand, and Hawaii enforce strict rabies-free quarantine and import rules prohibiting commercial in-cabin pets on arriving flights (except verified service animals following pre-approval).
Frequently Asked Questions
Does an in-cabin pet carrier count as my carry-on bag?
On most airlines, your under-seat pet carrier counts as either your personal item or carry-on item, plus the airline’s pet-in-cabin fee.
What is the CDC rule for flying into the US with a dog?
All dogs entering or returning to the United States must be at least 6 months old, microchipped, appear healthy, and have a completed CDC Dog Import Form receipt (plus additional documentation if visiting high-risk rabies countries).