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Southwest pet policy: flying with a dog or cat

Southwest accepts dogs and cats in the cabin. Here are its conditions, read on its official page, and the catches to know before you book.

What the airline accepts

Cabin
YesPublished fees: 125 USD (continental) · 35 USD (inter-island Hawaii)
Hold (checked)
No
Cargo
No

What to check before you book

These conditions also depend on the route and date: some destinations close the cabin, and the arrival country has its own rules. The check is free.

Check my route →

Source

Conditions read on the airline's official page, verified on September 23, 2026. support.southwest.com

Documented routes with this airline

Routes in our catalogue where it appears among the possible airlines (315).

Common questions

Can I fly with my dog in the cabin on Southwest?
Yes, Southwest accepts small dogs and cats in the cabin, in a carrier that fits under the seat.
Does Southwest accept pets in the hold?
No, Southwest does not accept pets in the hold.
Does Southwest accept short-nosed breeds?
We found no restriction specific to short-nosed breeds on Southwest's official page. Still check when you book.