Can You Bring a Small Pet on a Plane?

Direct Answer (2026 Official Rules)

Cabin: ⚠ LIMITED Hold: ⚠ LIMITED

Yes, with limits — you can bring small pets in carry-on bags provided you follow security limits. Airline decides: in-cabin fee carriers fit under the seat; hold transport varies by breed/season.

Verified against published 2026 TSA (United States) & CATSA (Canada) security screening databases.

On this page · 10 sections

⚖️ Why This Rule Exists: Cabin Security, Blade Restrictions & Sterile Area Integrity

Non-bladed tools under 7 inches (18 cm), blunt items, and general travel gear that do not pose a cutting, impact, or hazardous materials risk are permitted in carry-on luggage.

Decision Threshold: Permitted in carry-on if non-sharp or under legal length thresholds.

Rules by security authority

United States — TSA

Carry-on

Restricted

Check with your airline — security itself allows small pets through: the carrier is X-rayed, you carry the animal through.

Checked bag

Restricted

Check with your airline — under-seat vs checked/hold transport is entirely the carrier’s policy call.

Rule conditions: Airline decides: in-cabin fee carriers fit under the seat; hold transport varies by breed/seasonCheckpoint: carrier case through X-ray; you carry the pet through the metal detectorKeep control — leash off when carrying throughCarrier may get visual/physical inspection

Flying internationally? Security follows the country you depart from — the authority above applies at your departure airport. Customs at arrival is separate.

🔍 Security Checkpoint & X-Ray Screening Advice

Place large metal tools in the screening bin alongside electronics if requested by screening staff.

Learn more about scanner differences and traveler rights in our Airport Security Screening Guide →

⚠️ Common Traveler Mistake to Avoid

The Mistake: Assuming scissors or tools of any size are allowed without checking blade length from the pivot point.

How to Avoid It: Measure blade length: must be under 4 inches (10 cm in the US) or under 6 cm from pivot (in Canada).

✈️ Airline-Specific Rules & Baggage Limits

Everything about this trip is airline policy — cabin fees, carrier dimensions, breed and seasonal hold embargoes. Book the pet slot when you book your seat; cabins cap the number of animals per flight.

Delta Air Lines United Airlines American Airlines Southwest Airlines JetBlue Airways All 17 airlines →

How to Pack Small Pets (cat/dog) for a Flight

Practice the checkpoint move at home: pet out, case on the belt, animal carried through in your arms — the leash clips back on only after the detector. A pre-flight vet visit, no food within four hours, and a frozen thumb of water in the bowl make the kindest possible itinerary.

Small Pets (cat/dog) on a plane — FAQs

Can you bring a Small Pet in a carry-on?

Check with your airline — security itself allows small pets through: the carrier is X-rayed, you carry the animal through.

Can you pack a Small Pet in checked luggage?

Check with your airline — under-seat vs checked/hold transport is entirely the carrier’s policy call.

Why are there rules for a small pet on a plane?

Non-bladed tools under 7 inches (18 cm), blunt items, and general travel gear that do not pose a cutting, impact, or hazardous materials risk are permitted in carry-on luggage.

Does my pet go through the X-ray machine?

No — only the empty carrier goes through X-ray. You carry or walk your pet through the metal detector with you, with the leash removed while passing through.

Do airlines have their own rules for a small pet?

Last verified: July 29, 2026

Verified against official sources. Rules change — for high-stakes items, confirm with your airline and the screening authority. Our verification method →