Best Airline for Pets in Checked Cargo (2026)

Most major US airlines have suspended or restricted pet cargo programs since 2018. United Airlines discontinued PetSafe entirely after a series of high-profile pet deaths and injuries in 2017-2018, and the program has not restarted. Delta limited acceptance dramatically. American Airlines reduced cargo pet acceptance to specific routes. The US carriers that kept consistent pet cargo programs in 2026 are Alaska Airlines and Hawaiian Airlines.

For international long-haul pet relocation, the structural picks are Lufthansa AnimalCargo, KLM Cargo, and Air France Cargo. All three operate dedicated animal handling facilities at their hubs (Frankfurt, Amsterdam, Paris CDG respectively), use the IVMS (International Veterinary Medical Sciences) program for veterinary coordination, and have decades-long pet cargo track records.

The most important advice in this guide: for pets under 20 lb including carrier, use pet-in-cabin instead of checked cargo. Cabin transport is dramatically safer, with the pet remaining in your control under the seat in front of you. Cargo is appropriate only for pets too large for cabin (over 20 lb including carrier, generally) or international moves where cabin is not permitted.

What we looked for

• DOT pet mortality and injury stats from monthly Air Travel Consumer Report, which is the most reliable proxy for cargo safety
• Temperature embargo policies which are universal but airline-specific in exact thresholds
• Brachycephalic breed acceptance since most US airlines prohibit snub-nosed breeds from cargo
• Dedicated animal handling facilities at international hubs (FRA, AMS, CDG)
• IATA kennel compliance which is industry-standard requirement
• Documentation requirements including USDA APHIS Form 7001, microchip standards, rabies vaccination timing
• Route-specific limitations including summer embargoes on hot-destination routes

1. Alaska Airlines (best US pet cargo)

Alaska Airlines is the most consistent US option for pet cargo in 2026.

Why Alaska wins: year-round acceptance subject to temperature embargoes, strong DOT pet safety record (consistently among the lowest US carriers for pet incidents per 10,000 transported), direct booking through Alaska reservations (not a separate cargo division), and integration with Alaska’s broader operational quality.

Temperature embargo: standard 85°F upper and 20°F lower limits at any transit airport. Brachycephalic breeds (English Bulldog, French Bulldog, Pug, Boston Terrier, Boxer, Persian cat, Himalayan cat) refused above 75°F.

Fee: $150 each way for pet cargo on most routes. International routes may have higher fees.

Limitations: Alaska does not operate widebody aircraft, so for long-haul international (Europe, Asia), pets cannot fly Alaska’s own metal. Hawaiian (Alaska Group sister airline) operates A330-200 and 787-9 widebodies but has its own pet program.

Use case: domestic US pet relocation, Pacific Northwest, Alaska, Hawaii-mainland routes. Best US carrier for routine pet cargo needs.

2. Hawaiian Airlines (inter-island and Hawaii-mainland)

Hawaiian Airlines maintains a strong pet cargo program optimized for Hawaii’s unique pet travel context (rabies-free state with specific quarantine requirements).

Inter-island routes: dogs and cats accepted year-round subject to temperature embargo. $35 inter-island pet cabin fee (as of recent updates; verify current rate). Cargo for larger pets.

Hawaii-mainland routes: $100 pet-in-cabin (as of January 2026); cargo for larger pets with similar pricing. Hawaii’s strict rabies-quarantine rules (“Hawaii’s Direct Airport Release Program”) require all pets entering Hawaii from the mainland to meet specific microchip, vaccination, and FAVN blood test requirements (or face up to 120 days quarantine at Honolulu Animal Quarantine Station).

HNL hub handling: Hawaiian’s pet handling at Honolulu is well-rated due to the airport’s developed pet-quarantine infrastructure. For mainland-Hawaii pet relocation, Hawaiian is often the most efficient choice because the airline understands the specific Hawaii pet entry requirements.

Aircraft: A330-200 and 787-9 widebodies for long-haul international plus 717-200 for inter-island. The widebody fleet means consistent climate-controlled cargo holds.

3. Lufthansa AnimalCargo (best international)

For international pet relocation, Lufthansa AnimalCargo is the industry standard.

Why Lufthansa wins: dedicated Animal Lounge at Frankfurt (FRA) with temperature-controlled holding for layovers, veterinary staff on-site, 24/7 monitoring, and the IVMS coordination program. Lufthansa Cargo also operates dedicated cargo flights (separate from passenger aircraft) on major routes, which means more flexible pet routing.

Brachycephalic acceptance: Lufthansa is one of the few major carriers that accepts brachycephalic breeds with stricter temperature limits (65°F maximum on origin/destination/transit airports) and additional veterinary documentation. For owners of bulldogs, pugs, or Persian cats relocating internationally, Lufthansa is often the only viable major airline.

Hub network: Frankfurt (FRA) and Munich (MUC) are the primary handling hubs. Connections through Lufthansa Cargo provide worldwide pet relocation reach.

Fees: vary by route, weight, and kennel size. Typical US-to-Europe pet cargo runs $1,000-2,500 depending on pet size and route, including all veterinary handling fees.

4. KLM Cargo and Air France Cargo (the Schiphol and CDG options)

KLM Cargo runs the AMS Animal Hotel at Schiphol Amsterdam, a dedicated pet handling facility with temperature-controlled holding, veterinary access, and 24/7 monitoring. KLM has decades of experience with international pet cargo and is widely-regarded among veterinary pet relocation specialists as a top-tier option.

Air France Cargo runs the Pegasus Animal Travel Service at Charles de Gaulle (CDG). Strong veterinary partnerships and IVMS coordination. The caveat: Air France has stricter brachycephalic restrictions than Lufthansa or KLM, generally prohibiting these breeds from cargo.

Both Air France-KLM Group carriers operate within the same cargo system, so pet routing flexibility includes both AMS and CDG handling options.

For US-to-Europe pet relocation specifically, these three carriers (Lufthansa, KLM, Air France) cover almost all viable routings. Pricing is comparable across the three; the choice usually comes down to which hub matches your destination geography.

5. The United PetSafe history (and why it matters)

United PetSafe was discontinued in March 2018 after a series of high-profile pet deaths and injuries in 2017-2018:

• A French Bulldog puppy died in an overhead bin after a United flight attendant insisted the carrier be stored overhead (March 2018, viral incident that triggered congressional hearings)
• A German Shepherd was shipped to the wrong continent (sent to Japan instead of Kansas)
• A dog died on a flight due to inadequate temperature control
• Multiple other documented cargo incidents during the same period

United paused PetSafe operations in March 2018 and has not restarted the program. As of 2026, United does NOT accept pets in checked cargo or as cargo shipments on passenger aircraft, with the exception of registered assistance animals.

The history matters because: (1) it shows that pet cargo safety is not guaranteed even at major US carriers; (2) it demonstrates that DOT and consumer pressure can force airlines to suspend pet programs entirely; (3) it explains why Alaska and Hawaiian retain strong pet cargo programs (they invested in handling infrastructure and kept incident rates low).

For pet relocation that requires cargo transport on US routes United used to serve, current options are: drive (if domestic), use Alaska/Hawaiian routing if available, or use a pet relocation service that books cargo space on Lufthansa, KLM, or Air France connecting flights.

6. Temperature embargoes (universal but airline-specific)

Industry-standard temperature embargoes refuse pets if forecast temperatures exceed or fall below specific thresholds at any transit airport (origin, connecting, destination).

Standard ranges (most US airlines):

• Upper limit: 85°F (29°C) at any transit airport
• Lower limit: 20°F (-7°C) at any transit airport
• Brachycephalic adjustment: 75°F (24°C) upper limit for snub-nosed breeds

Stricter international (Lufthansa, KLM, Air France):

• Upper limit: 75-80°F (24-27°C) at any transit airport
• Lower limit: 14°F (-10°C) or stricter

Practical implication: summer pet relocation to hot destinations (Phoenix, Las Vegas, Miami, Houston, Doha, Dubai in summer) is often impossible due to embargo violation. The standard workaround is routing through cooler hubs (Anchorage, Reykjavik, Calgary) or postponing to fall/winter.

Verify the day before flight: temperature embargoes are forecast-based, and last-minute weather changes can cause same-day pet refusal at the airport. Booking around predicted weather and having a flexible reschedule plan is essential.

7. Documentation: USDA APHIS Form 7001 and beyond

Standard pet cargo documentation requirements:

Domestic US (interstate):

• USDA APHIS Form 7001 (Veterinary Certificate of Inspection) issued by accredited veterinarian within 10 days of travel
• Rabies vaccination certificate within 1-3 years (state requirements vary)
• Microchip ISO 11784/11785 compatible (15-digit number)
• IATA-approved kennel with proper sizing and ventilation

International outbound (US to anywhere):

• All domestic requirements PLUS
• USDA APHIS endorsement of veterinary certificate (additional 1-3 weeks processing time)
• Destination country import permit (varies; rabies-free countries like UK, Japan, Australia have stricter requirements)
• Country-specific vaccinations (Australia, New Zealand have extensive lists)
• FAVN (Fluorescent Antibody Virus Neutralization) blood test 90+ days before travel for rabies-free destination entry
• Microchip implantation before rabies vaccination (sequence matters for some countries)
• Quarantine arrangements (UK: 0 days if all requirements met; Australia: 10 days minimum at approved post-arrival quarantine; some countries: 30+ days)

USDA APHIS Pet Travel website (aphis.usda.gov/pet-travel) is the authoritative resource. Pet relocation specialists (PetRelocation, Pet Express, IPATA members) coordinate complex international moves and handle the documentation timeline.

The bottom line

For US domestic pet cargo, Alaska Airlines is the structural pick. Year-round acceptance, strong DOT safety record, $150 fee, direct booking through Alaska reservations.

For Hawaii-mainland or inter-island pet routing, Hawaiian Airlines is the obvious choice with developed HNL infrastructure and understanding of Hawaii’s specific entry requirements.

For international pet relocation (US to Europe, Asia, anywhere requiring long-haul cargo), Lufthansa AnimalCargo, KLM Cargo, and Air France Cargo are the structural picks. Lufthansa for brachycephalic breeds and worldwide reach. KLM for AMS Animal Hotel infrastructure. Air France for CDG Pegasus program and Europe-Africa routing.

Avoid United Airlines for pet cargo. United PetSafe was discontinued in March 2018 and has not restarted. Pet-in-cabin is still available on United for cats and small dogs under the seat.

Use pet-in-cabin instead of cargo for any pet under 20 lb including carrier. Cabin transport is dramatically safer than cargo, with the pet remaining under your seat throughout the flight. Cargo is appropriate only for larger pets or international moves where cabin is not an option.

For airline-specific pet-in-cabin rules and carrier dimensions, see Best Airline for Flying with Pets in Cabin which covers Alaska’s industry-leading cabin program, JetBlue’s cat-friendly carrier sizing, and the post-2025 pet-fee landscape.