WN · Pet Policy 2026
In-Cabin
Allowed
Cargo
Not available
Max Weight (cabin)
—
Domestic Fee
$125
International Fee
—
Pets Allowed
dog, cat
18.5" x 8.5" x 13.5" (47 x 22 x 34 cm)
Domestic flights within continental U.S. and between Hawaiian islands only. Pets are NOT allowed on flights between the mainland and Hawaii. No international pet travel. No published weight limit — pet must fit comfortably in carrier under seat. Up to 2 pets of the same species may share one carrier. 1 carrier per passenger. Pet must be at least 8 weeks old.
Policy last updated: 2026-03-20. Always verify directly with Southwest Airlines before booking.
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