American Airlines in-cabin pet policy — and the carriers that fit
American Airlines allows small pets in the cabin in a carrier up to 18 × 11 × 11 in. Below: the official rules (cited), the honest under-seat caveat, and which carriers fit that limit.
American Airlines pet rules
| Recommended max carrier (soft) | 18 × 11 × 11 in |
| Max hard-sided kennel | 19 × 13 × 9 in |
| Soft-sided required? | Soft recommended; hard allowed within its limit |
| In-cabin fee | $150 per kennel each way (carry-on, within/between US, Canada, Mexico, Central America & Caribbean) |
| Species allowed | cats, dogs |
| Pets | 1 carry-on pet carrier per passenger; counts as your carry-on or personal item |
| Booking | Add a carry-on pet to your trip; pay the fee at the airport |
Source: official American Airlines pet policy · verified 2026-07-03
Carriers that fit American Airlines
Matched to American Airlines's published 18 × 11 × 11 in limit (height checked strictly; footprint may rotate). See the full American Airlines carrier shortlist →
| Carrier | Size | Fit | Buy |
|---|---|---|---|
| Sherpa Original Deluxe (Small) | 15 × 10 × 8.5 in | Fits | See on Amazon → |
| Mr. Peanut's Gold Series Mini (Low-Profile) | 16 × 10.5 × 9.8 in | Fits | See on Amazon → |
| Sherpa Original Deluxe (Medium) | 17 × 11 × 10.5 in | Fits | See on Amazon → |
| Petsfit Expandable Soft-Sided | 17 × 11 × 11 in | Fits | See on Amazon → |
| Sleepypod Air | 22 × 10.5 × 10.5 in | Fits collapsed | See on Amazon → |
| Diggs Passenger | 17 × 12 × 10.5 in | Too big | See on Amazon → |
| Away The Pet Carrier | 18.7 × 10.8 × 10.75 in | Too big | See on Amazon → |
| Sherpa Original Deluxe (Large) | 19 × 11.75 × 11.5 in | Too big | See on Amazon → |
| Mr. Peanut's Gold Series Standard (Expandable) | 18.5 × 11.75 × 11.5 in | Too big | See on Amazon → |
| SturdiBag Pro (Large, Flexible Height) | 18 × 11.5 × 11.5 in | Too big | See on Amazon → |
| ibiyaya JetPaw Expandable Backpack | 18 × 12 × 12 in | Too big | See on Amazon → |
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How to confirm your actual under-seat space
American Airlines's number is a fleet-wide recommendation, not a promise for your exact seat. Before you buy or fly:
- Check which aircraft operates your flight (in your booking or on a seat-map site).
- Avoid bulkhead and some window seats — they have less (or no) under-seat storage.
- Call American Airlines to confirm under-seat dimensions for that aircraft, or
- Choose a collapsible / flexible-height carrier that adapts to a tighter space.
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