When choosing a dog carrier for air travel, you must follow airline and TSA guidelines to ensure compliance and comfort for your pet. Below are the standard airline-approved pet carrier requirements for in-cabin and cargo travel.
1. In-Cabin Pet Carrier Requirements

These apply to dogs traveling inside the passenger cabin under the seat.
Size & Dimensions
- Varies by airline, but typically around:
- Soft-sided carriers: Max height of 10-12 inches (25-30 cm).
- Hard-sided carriers: Max height of 7-9.5 inches (18-24 cm).
- Must fit under the seat in front of you.
- Exact dimensions depend on the airline and aircraft type.
Material & Ventilation
- Soft-sided carriers are preferred as they provide flexibility to fit under the seat.
- Mesh panels on at least two to three sides for proper airflow.
Security & Comfort
- Zippered closure (no velcro) to prevent escape.
- Leak-proof and water-resistant bottom liner.
- Enough space for the dog to stand, turn around, and lie down comfortably.
- Absorbent bedding (pee pads or soft padding recommended).
Weight Limits
- Typically 15-20 lbs (7-9 kg) max (carrier + dog).
- Some airlines allow heavier dogs if they fit comfortably.
Airline-Specific Requirements (Examples)
Airline | Max Carrier Size (L x W x H, inches) | Weight Limit | Soft/Hard-Sided? |
---|---|---|---|
Delta | 18 x 11 x 11 | No set limit, must fit under seat | Soft/Hard |
American | 18 x 11 x 11 | 20 lbs | Soft |
United | 18 x 11 x 11 | 20 lbs | Soft |
JetBlue | 17 x 12.5 x 8.5 | 20 lbs | Soft |
Southwest | 18.5 x 13.5 x 9.5 | 16 lbs | Soft |
Turkish | 23 x 30 x 40 cm (soft) | 17.6 lbs | Soft |
2. Cargo Hold Pet Carrier Requirements

For dogs too large for in-cabin travel, airlines require IATA-approved hard-sided crates.
Size & Dimensions
- Must allow your dog to stand, turn, and lie down naturally.
- Airlines use IATA guidelines, with max dimensions based on aircraft type.
Material & Structure
- Hard-sided plastic or fiberglass.
- Metal doors and secure latches (no plastic locks).
- Ventilation on at least three sides.
- Leak-proof bottom with absorbent bedding.
- Bolted together (not snap-lock).
Weight Limits
- Varies by airline. Some have a 100 lb (45 kg) limit, while others require cargo shipment for larger dogs.
Labeling & Documentation
- Live Animal stickers on top & sides.
- Owner’s contact details & flight info attached.
- Food/water bowls attached inside the door.
3. TSA & Airport Security Rules
- At security, remove your pet from the carrier and carry them through screening.
- The carrier will go through the X-ray machine separately.
- Some airlines require health certificates or proof of vaccination.
4. Best Recommended Dog Carriers
Here are some top-rated airline-approved dog carriers:
For In-Cabin Travel
- Ibiyaya JetPaw TSA Expandable Pet Carrier – Soft-sided, expandable, and TSA-approved.
- Sherpa Deluxe Pet Carrier – Airline-approved, soft-sided, mesh ventilation.
- Sleepypod Air – Crash-tested for car safety and airline-approved.
For Cargo Hold
- Petmate Sky Kennel – IATA-compliant hard-sided crate with secure locks.
- SportPet Rolling Plastic Dog Crate – Designed for large dogs, meets IATA rules.
5. Final Tips
✔ Check airline policies before booking – Dimensions vary by aircraft.
✔ Get your dog used to the carrier weeks before the trip.
✔ Arrive early at the airport to avoid last-minute issues.
✔ Attach ID tags to both the carrier and your pet.