We have spent the better part of two years flying with dogs. Not once or twice, but dozens of times across a half-dozen airlines, from JFK to LAX, from Newark to Heathrow, and from a private terminal in Dallas that did not appear on any map. We have had gate agents wave us through with a smile and we have had them pull us aside for forty minutes of paperwork. We have seen the best of pet travel and the worst of it, and we can tell you this: the gap between what an airline publishes on its website and what actually happens at the gate is enormous.
This guide is the product of that experience, supplemented by direct calls to every airline listed here, cross-referenced against current published policies as of early 2026. We update it regularly. If something has changed since publication, we want to hear about it.
A note before we begin: this guide is primarily for small dogs flying in-cabin. If you have a dog over 20 pounds, your options on commercial airlines are extremely limited, and we address that directly in the private charter section below. We do not recommend cargo travel for any dog, under any circumstances, and we explain why.
The Major US Carriers
These are the airlines most of us actually fly. Each allows small dogs and cats in the cabin on domestic routes, but the details vary more than you might expect. We have organized them in rough order of how much we trust them with your dog.
Alaska Airlines
Our Pick for Domestic Travel- In-Cabin Fee
- $100 each way — the lowest of any major carrier
- Weight Limit
- Pet + carrier must fit under the seat; no published combined weight limit
- Carrier Size
- 17” x 11” x 7.5” (hard or soft-sided)
- Breed Restrictions
- None for in-cabin
- Booking
- Can be added online during booking or by calling; recommend calling for confirmation
Alaska has consistently been the most pleasant airline to fly with a dog. Gate agents tend to know the policy, the fee is reasonable, and we have never encountered a surprise restriction. The carrier size limit is slightly smaller than Delta or United, so measure carefully. But the experience is worth the tighter fit.
Delta Air Lines
Best for International Routes- In-Cabin Fee
- $150 each way domestic (as of April 2025); $200 for most international routes
- Weight Limit
- No published weight limit; pet must fit comfortably in carrier under the seat
- Carrier Size
- Soft-sided, max 18” x 11” x 11”; ventilation on 3 sides domestic, 4 sides international
- Breed Restrictions
- None for in-cabin travel
- Booking
- Must call to add a pet; cannot be done online. Slots are limited and first-come, first-served
Delta is reliable and their staff is generally well-trained on pet procedures. The fee increase to $150 in 2025 was unwelcome but not surprising. The real advantage here is route network: Delta flies to more international destinations with in-cabin pet allowances than any other US carrier. The catch is that you must call to book your pet, which means hold times. Call early, call often, and confirm twice.
United Airlines
Adequate, but Watch the Weight- In-Cabin Fee
- $150 each way; $125 additional for long stopovers
- Weight Limit
- Combined pet + carrier must not exceed 20 lbs — this is strictly enforced
- Carrier Size
- Hard-sided: 17.5” x 12” x 9”; Soft-sided: 18” x 11” x 11”
- Breed Restrictions
- None for in-cabin
- Booking
- Can be added at booking online or by phone; spots limited
United is the only major US carrier that publishes and enforces a strict 20-pound combined weight limit. If your dog plus carrier is 20.5 pounds, you will be denied boarding. We have seen this happen. Weigh at home, weigh again at the airport, and leave nothing to chance. The online booking option is convenient, but always call to confirm your spot is actually held.
American Airlines
Fine, but Not Exceptional- In-Cabin Fee
- $150 per carrier, each way
- Weight Limit
- Pet must fit in carrier under seat; no published combined weight limit
- Carrier Size
- Soft or hard-sided; must fit under seat (varies by aircraft)
- Breed Restrictions
- Brachycephalic (snub-nosed) breeds prohibited in cargo; no cabin restrictions
- Booking
- Phone only for most routes; some domestic routes bookable online
American is perfectly adequate. The policy is clear, the fee is standard, and the staff generally knows what to do. It is not our first choice because the booking process remains phone-centric and the experience at the gate can feel like the agent is processing a pet for the first time. But we have never had a real problem.
Southwest Airlines
Budget-Friendly, Domestic Only- In-Cabin Fee
- $125 each way — second-lowest after Alaska
- Weight Limit
- Must fit comfortably in carrier; no strict weight limit published
- Carrier Size
- 18.5” x 13.5” x 9.5” — the most generous dimensions of any carrier
- Breed Restrictions
- None
- Booking
- Phone only; cannot add pet online
Southwest deserves more credit than it gets. The fee is low, the carrier size allowance is the largest of any US carrier, and the open-seating policy means you can choose a seat with more under-seat space. The limitation is obvious: domestic flights only, no assigned seats, and you must call to book the pet. For a quick domestic hop, it is genuinely excellent.
JetBlue
Good Policy, Limited Network- In-Cabin Fee
- $150 each way
- Weight Limit
- Combined pet + carrier must not exceed 20 lbs
- Carrier Size
- 17” x 12.5” x 8.5” (FAA-approved carrier required)
- Breed Restrictions
- None for in-cabin
- Booking
- Can be added during booking online
JetBlue makes the process easy: book online, show up, and go. The limitation is the network. If you are flying between Northeast cities or to Florida or the Caribbean, JetBlue is a strong option. But they do not fly pets in Mint class, on codeshare flights, or on most European routes. For what it does, it does well.
The Private and Semi-Private Option
If your dog weighs more than 20 pounds, you have effectively been excluded from in-cabin commercial travel. This is the reality that no airline wants to advertise and no listicle wants to acknowledge. For medium and large dogs, private aviation is not a luxury — it is the only humane option for air travel.
The market has responded. Semi-private carriers like JSX have built a meaningful niche specifically because they welcome dogs that commercial airlines cannot accommodate. The cost is higher, but the experience is incomparably better.
JSX
The Best Option for Most Dog Owners- In-Cabin Fee
- $100 for small dogs in a carrier; seat purchase at standard fare for dogs over 20 lbs
- Weight Limit
- Up to 79 lbs (must purchase adjacent seat for dogs over 20 lbs)
- Carrier Size
- 13” x 11” x 17” for under-seat; larger dogs sit leashed in purchased seat
- Breed Restrictions
- No aggressive breeds; staff reserves right to refuse
- Booking
- Must call Customer Support to add pet to reservation
JSX is the airline we recommend most often to Canine Atlas readers. The semi-private terminals mean no TSA lines, the 30-seat aircraft are quiet and civilized, and your 50-pound dog can sit next to you in an actual seat. The route network is limited — primarily West Coast, Texas, and select East Coast cities — but where they fly, nothing else compares. Their new partnership with Petco in 2026 adds pet amenities at their terminals.
Surf Air
Membership Model, Good for Regulars- In-Cabin Fee
- Included with membership; separate seat required for dogs over 20 lbs
- Weight Limit
- Up to 100 lbs
- Breed Restrictions
- None published; service animals take priority
- Booking
- Email animals@surfair.com at least 48 hours in advance
Surf Air works well if you are already a member flying their routes regularly. The booking process via email feels dated, and the 48-hour advance notice is inflexible. But the planes are small, the terminals are private, and your dog will be more comfortable than in any commercial cabin. Maximum of two large pets per flight.
Wheels Up
White-Glove, if You Can Afford It- In-Cabin Fee
- No additional pet fee — included with membership
- Weight Limit
- No published limit; dogs fly in the cabin regardless of size
- Breed Restrictions
- None
- Booking
- Dedicated pet concierge handles arrangements
Wheels Up offers a pet concierge, a pet welcome kit, and no carrier requirements. Your dog sits with you, period. The service is outstanding. The cost, naturally, reflects that. This is for the traveler who has already decided that private aviation is part of their life. If that is you, Wheels Up is hard to beat for the dog owner.
NetJets
The Gold Standard, for Those Who Qualify- In-Cabin Fee
- No pet fees whatsoever
- Weight Limit
- Under 150 lbs in a seat; over 150 lbs on the floor
- Breed Restrictions
- None
- Booking
- Part of standard flight arrangement; multiple pets welcome
NetJets treats your dog like a passenger, because on a private jet, they are one. No carrier required, no forms, no restrictions worth mentioning. Your 120-pound Great Dane can ride belted into a seat. This is the reality of flying private with a dog: the entire experience is designed around your convenience. If you have the means, there is simply nothing else to discuss.
International Airlines
Flying internationally with a dog is a fundamentally different exercise. Import regulations, veterinary certificates, quarantine periods, and wildly inconsistent airline policies make every trip a research project. Here are the carriers we have the most experience with.
Air France
Best European Carrier for Pets- In-Cabin Fee
- Varies by route; approximately €40-200 depending on distance
- Weight Limit
- Combined pet + carrier must not exceed 8 kg (17.6 lbs)
- Carrier Size
- 46 cm x 28 cm x 24 cm (soft-sided)
- Breed Restrictions
- Brachycephalic breeds restricted in cargo; no cabin restrictions
- Booking
- Must call Air France directly; cannot book pet online
Air France is the most dog-friendly major European carrier by a wide margin. They allow in-cabin pets on most routes including long-haul transatlantic flights. The weight limit is strict and measured at check-in, so do not try to sneak in a 10-kilogram dog. Business class does not allow pets, which is worth knowing if you were planning to upgrade. Despite this, Air France remains our top pick for transatlantic travel with a small dog.
Lufthansa
Business Class Exception Is Unique- In-Cabin Fee
- Varies by route; approximately €50-100 within Europe, more for long-haul
- Weight Limit
- Combined pet + carrier must not exceed 8 kg (17.6 lbs) for cabin travel
- Carrier Size
- Must fit under the seat; dimensions vary by aircraft type
- Breed Restrictions
- Brachycephalic breeds restricted in cargo
- Booking
- Must call Lufthansa service center; very limited spots per flight
Lufthansa is notable for one reason: it is the only major airline that allows pets in business class on certain transatlantic routes, depending on aircraft configuration. This is subject to availability and usually limited to one pet per flight, but it exists. For a small dog on a long-haul flight in lie-flat comfort, this is remarkable. Call well in advance. Spots disappear immediately.
British Airways
Not an Option for In-Cabin Travel- In-Cabin Fee
- Not applicable — no pets allowed in cabin
- Cargo
- Pets travel in the hold only; fees vary by size and route
- Breed Restrictions
- Brachycephalic breeds prohibited entirely
- Booking
- Through BA World Cargo
British Airways does not allow any pets in the cabin, period. Only trained assistance dogs are permitted. All other animals must fly in the hold as cargo. We include BA here because it is the most common transatlantic carrier and travelers are frequently surprised by this restriction. If London is your destination, fly another carrier or connect through a European hub where Air France or Lufthansa can take you and your dog together.
Emirates
Cargo Only, Proceed with Caution- In-Cabin Fee
- Not applicable — no pets in cabin (guide dogs only)
- Cargo
- Checked baggage on flights under 17 hours; $500-650 depending on size
- Breed Restrictions
- Brachycephalic breeds (French Bulldog, Pug, Shih Tzu) prohibited entirely
- Booking
- Must submit form at least one week before departure
Emirates does not allow pets in the cabin under any circumstances. Dogs and cats can travel as checked baggage in the hold on flights under 17 hours, but this involves considerable paperwork, a one-week advance submission, and the stress of cargo travel. For routes to the Middle East, Gulf states, or connections through Dubai, we recommend finding an alternative routing through a pet-friendly European carrier whenever possible.
Why Cargo Is Almost Never Worth It
We need to be direct about this. We do not recommend cargo travel for dogs.
The cargo hold is pressurized and temperature-controlled on modern aircraft — that much is true. But the experience for your dog is one of complete sensory overload: unfamiliar handlers, the roar of the tarmac, extreme temperature swings during loading and unloading, and hours of solitary confinement in a dark, vibrating metal tube. Dogs cannot understand what is happening to them. They cannot be comforted. They are simply enduring.
The statistics on pet injuries and deaths in cargo, while not catastrophic in percentage terms, are not numbers we are comfortable with. The Department of Transportation requires airlines to report incidents, and the reports make for grim reading. Heat-related distress, escape attempts, and mishandling are not rare outliers. They are recurring themes.
If your dog is too large for in-cabin commercial travel, the answer is private or semi-private aviation, road travel, or leaving them with a trusted sitter. The answer is not the cargo hold.
The Private Charter Advantage
For dogs over 20 pounds — which is most dogs — private aviation is not an indulgence. It is the only form of air travel that does not involve putting your dog in a box under a seat or in a pressurized hold. The cost has come down significantly with operators like JSX and Surf Air offering semi-private options at a fraction of traditional charter prices.
A JSX flight from Dallas to Los Angeles with a 60-pound dog in the next seat costs roughly $600-800 per person. Compare that to the stress of cargo shipping (often $300-500 plus the veterinary paperwork and the worry) and the economics begin to make sense, particularly when you factor in the things money cannot quantify: your dog's comfort, your peace of mind, and the elimination of all the bureaucratic friction that defines commercial pet travel.
If you fly frequently with a larger dog, membership programs at Wheels Up or fractional ownership through NetJets amortize the cost further. The per-flight premium over commercial travel narrows with volume, and the experience gap only widens.
Before You Fly: The Pre-Flight Checklist
Two Weeks Before
- Confirm your dog's carrier fits under the seat of your specific aircraft type (call the airline)
- Schedule a veterinary visit for a health certificate (required for most carriers within 10 days of travel)
- Verify your dog's vaccinations are current and documented
- For international travel: research destination country import requirements, microchip verification, and any quarantine rules
- Practice with the carrier at home — your dog should enter willingly and lie down calmly
The Night Before
- Weigh your dog in the carrier (if the airline enforces a weight limit, this is critical)
- Prepare a carry-on with waste bags, treats, a collapsible water bowl, and an absorbent pad for the carrier
- Freeze a small water dish — it will not spill during boarding and will melt slowly during flight
- Print your veterinary health certificate and vaccination records (do not rely on your phone)
- Withhold food for 4-6 hours before the flight to reduce the chance of an upset stomach
At the Airport
- Arrive at least 30 minutes earlier than you normally would
- Check in at the counter, not the kiosk — most airlines require an agent to process the pet fee
- Locate the pet relief area before going through security (every major US airport has one; find the map online beforehand)
- At TSA: you will remove your dog from the carrier. The carrier goes through the X-ray. Your dog goes through the metal detector with you, in your arms. Have the leash ready
- Board early if possible — most airlines offer pre-boarding for passengers with pets, though it is rarely advertised. Ask at the gate
Airport Navigation: What They Do Not Tell You
Every major US airport is required to have pet relief areas, but their quality and location vary dramatically. JFK's Terminal 4 has an excellent indoor pet relief area past security. LaGuardia's is outdoors and requires re-screening. SFO's is a grass patch near the international terminal that is genuinely pleasant. Newark's is a mystery that requires asking three different people to locate.
Our advice: look up your specific terminal's pet relief area before you leave home. The airport websites publish maps, though they are often buried. Know where it is relative to your gate, and build in time to visit it before boarding.
At TSA, the process is straightforward but slightly theatrical. You will hold your dog while the carrier goes through the scanner. If your dog is anxious, this is the moment to have treats ready. The agents have seen it all. Be calm, be efficient, and do not apologize for having a dog. You are a paying passenger with documented, permitted luggage.
One final note on gate agents: the single most important thing you can do is have your confirmation number, pet receipt, and health certificate accessible before you reach the counter. A prepared traveler with papers in hand will always have a smoother experience than one digging through a bag. This applies to everything in travel, but with a dog, the stakes are higher. You are managing your dog's anxiety and the airline's bureaucracy simultaneously. Make the bureaucracy easy so you can focus on the dog.
This guide reflects airline policies as of March 2026. Airlines change their pet policies without notice. We recommend confirming directly with your carrier before booking. If you have had an experience that contradicts what we have published here, please reach out — we update this guide regularly.