How old must a puppy or kitten be to fly in the cabin?
At least 8 weeks and weaned on most US airlines; Air Canada says 10 weeks. Dogs entering the United States face a stricter rule (6 months, per the airlines that quote the CDC requirement).
| Airline | Airline's wording | Source |
|---|---|---|
| Air Canada | At least 10 weeks old and fully weaned (Air Canada: "in most cases") | official page read 2026-09-24 |
| airBaltic | Rabies vaccination required (pet at least 15 weeks old) | official page read 2026-10-03 |
| Alaska Airlines | At least 8 weeks and fully weaned (dogs, cats and rabbits) | official page read 2026-09-24 |
| Alaska Horizon (Horizon Air) | At least 8 weeks and fully weaned (dogs, cats and rabbits) | official page read 2026-09-24 |
| Allegiant Air | At least 8 weeks | official page read 2026-09-24 |
| American Airlines | At least 8 weeks (within the U.S. and Puerto Rico) | official page read 2026-09-23 |
| Croatia Airlines | 12 weeks (15 weeks to/from Germany, 16 weeks to the USA) | official page read 2026-10-03 |
| Delta Air Lines | At least 8 weeks (domestic); dogs entering the U.S. must be 6 months | official page read 2026-09-04 |
| Frontier Airlines | At least 8 weeks | official page read 2026-09-04 |
| Pegasus Airlines | 3 months, with rabies vaccination; unvaccinated pets under 3 months are not accepted | official page read 2026-10-03 |
| Southwest Airlines | At least 8 weeks | official page read 2026-09-24 |
| United Airlines | Puppies and kittens at least 2 months (domestic); internationally, dogs 6 months (CDC) and kittens 4 months | official page read 2026-09-23 |
| Viva Aerobus | At least 2 months old on domestic flights (other rules for flights to the United States) | official page read 2026-10-03 |
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How old does a puppy have to be to fly in the cabin?
Usually at least 8 weeks and weaned. Air Canada: At least 10 weeks old and fully weaned (Air Canada: "in most cases") · airBaltic: Rabies vaccination required (pet at least 15 weeks old) · Alaska Airlines: At least 8 weeks and fully weaned (dogs, cats and rabbits) · Alaska Horizon (Horizon Air): At least 8 weeks and fully weaned (dogs, cats and rabbits) · Allegiant Air: At least 8 weeks · American Airlines: At least 8 weeks (within the U.S. and Puerto Rico) · Croatia Airlines: 12 weeks (15 weeks to/from Germany, 16 weeks to the USA) · Delta Air Lines: At least 8 weeks (domestic); dogs entering the U.S. must be 6 months · Frontier Airlines: At least 8 weeks · Pegasus Airlines: 3 months, with rabies vaccination; unvaccinated pets under 3 months are not accepted · Southwest Airlines: At least 8 weeks · United Airlines: Puppies and kittens at least 2 months (domestic); internationally, dogs 6 months (CDC) and kittens 4 months · Viva Aerobus: At least 2 months old on domestic flights (other rules for flights to the United States).