Your rights as a US air passenger are governed by the Department of Transportation, not by the airline. Carriers write contracts of carriage that often sound like the final word on what you are owed when a flight goes wrong, but federal rules sit on top of those contracts and override the parts that conflict.
These protections apply to all flights to, from, or within the United States, regardless of the carrier's nationality. A British Airways flight from Heathrow to JFK falls under DOT rules for the US-arrival side. A United flight from Newark to London falls under DOT for the US-departure side. Knowing which rules apply — and which do not — is the difference between accepting a voucher you do not have to accept, and getting your money back.
The 2024 DOT automatic refund rule
The biggest change in US air-passenger rights for a generation took effect in 2024. The Department of Transportation now requires airlines to automatically refund passengers — in cash or to the original payment method — when any of the following occur:
- The flight is canceled and you choose not to accept a rebooking
- The flight is significantly changed: 3 or more hours late on a domestic flight, 6 or more hours late on an international flight, or rerouted through a different airport, downgraded, or rebooked with additional connections
- Your checked bag is delayed by 12 or more hours on domestic flights, or 15 to 30 hours on international flights (depending on flight length), and you file a complaint — the airline must refund the bag fee
- You paid for an ancillary service (Wi-Fi, seat selection, in-flight entertainment) and the airline failed to provide it
Refunds must be processed within 7 business days for credit-card purchases and 20 calendar days for other payment methods. The refund must be a real refund — original price, original method — not a travel credit, not a voucher, not a future-flight coupon, unless you affirmatively choose one of those alternatives.
Why this matters. Before the 2024 rule, airlines routinely pushed canceled-flight passengers toward vouchers. You can still take a voucher if you want one — sometimes carriers offer a premium for accepting credit instead of cash — but the choice is now yours, not theirs.
Cancellations and major delays
If the airline cancels your flight, you have two options under DOT rules: take the refund described above, or accept a comparable replacement flight at no extra cost. The airline cannot insist on rebooking you onto a flight 24 hours later if you would rather take the money back and book elsewhere.
"Significant change" is the term that does the work. The DOT defines it as a schedule change of 3 or more hours for domestic itineraries, 6 or more hours for international itineraries, or any change that adds connections, swaps your origin or destination airport, or downgrades your cabin class. If the airline pushes a change that crosses any of those thresholds, the refund right is triggered — even if the flight technically still operates.
One important gap to flag: delays alone do not trigger compensation under US rules. This is a major difference from EU261 or US DOT rules, where qualifying delays of 3+ hours can pay out €250–600 per passenger. In the US, a delayed flight that eventually departs gives you no automatic right to cash on top of the ticket. The right kicks in only when the delay becomes a "significant change" by the definitions above, or when the flight is outright canceled.
Tarmac delay rule (14 CFR Part 259)
The tarmac delay rule is one of the more aggressive consumer-protection rules anywhere in global aviation. On domestic flights, an aircraft cannot sit on the tarmac with passengers on board for more than 3 hours before the airline must give passengers the chance to deplane. On international flights the limit is 4 hours.
While you are on the tarmac, the airline must provide:
- Drinking water and a snack within 2 hours of leaving the gate (or being delayed at the gate)
- Working lavatories
- Adequate cabin temperature and ventilation
- Access to medical attention if needed
Penalties for tarmac-rule violations run up to $27,500 per passenger — which is one reason you rarely hear about extended tarmac strandings on US carriers in 2026 the way you did 15 years ago. The economics of breaking this rule are catastrophic for the airline, so they take it seriously.
Oversales and bumped passengers (14 CFR Part 250)
US airlines are legally allowed to oversell flights. They are not legally allowed to deny you boarding without compensation if the oversale catches up with you. The compensation owed depends on how late you arrive at your final destination compared to your original itinerary.
| Arrival delay | Domestic compensation | International compensation |
|---|---|---|
| 0 to 1 hour | None | None |
| 1 to 2 hours (domestic) / 1 to 4 hours (international) | 200% of one-way fare, max $1,075 | 200% of one-way fare, max $1,075 |
| 2+ hours (domestic) / 4+ hours (international) | 400% of one-way fare, max $2,150 | 400% of one-way fare, max $2,150 |
This compensation is on top of your original ticket. You also have the right to keep your original ticket and request a full refund instead of being rebooked, and you have the right to be rebooked free of charge on the next available flight.
Voluntary bumping is different. If the airline asks at the gate for volunteers to take a later flight in exchange for a voucher or travel credit, that is a negotiation — whatever you accept is what you get. DOT advises that if you are offered the choice, ask whether cash is on the table; carriers will sometimes pay cash rather than vouchers if you ask. Once you accept a voluntary-bump offer, the involuntary-bump compensation table no longer applies.
Before you accept a voucher. Check the expiry date, blackout dates, and whether it is restricted to the same airline. A $400 voucher that expires in 12 months and excludes peak season may be worth less than $200 in cash for the same delay.
Baggage liability
For checked bags on domestic flights, US airlines are liable up to $3,800 per passenger for lost, damaged, or unreasonably delayed bags. This is a ceiling, not a guarantee — you have to demonstrate the value of what was in the bag with receipts, photos, or other documentation.
For international flights, liability is governed by the Montreal Convention at approximately 1,288 SDR per passenger (around $1,700 at current exchange rates). The currency conversion fluctuates, but the IMF Special Drawing Rights basket is what controls the ceiling, not US dollars.
File your claim within the airline's stated timeframes. These are typically:
- Damaged bags: 24 hours from arrival (and ideally before you leave the airport — go to the baggage service desk in the arrivals hall)
- Delayed bags: file a Property Irregularity Report (PIR) at the airport before you leave; follow up in writing if the bag does not show within 24 hours
- Lost bags: usually 7 to 21 days for the formal claim, but file the PIR immediately
Carry-on items are not covered by these limits unless the airline gate-checked the bag. If you lose a laptop in an overhead bin, that is on your travel insurance, not the airline. If the airline forced you to gate-check a bag because the overhead bins filled up, that bag is treated as checked luggage and falls under the limits above.
Disabled passengers (Air Carrier Access Act)
The Air Carrier Access Act applies to all flights to, from, or within the US, on US and foreign carriers alike. Key rights include:
- Free wheelchair assistance from check-in through to your seat, and again on arrival
- No charge for stowing wheelchairs or other mobility aids — these do not count against your baggage allowance
- The right to bring a trained service animal in the cabin at no extra charge
- Reasonable accommodations for visual, hearing, mobility, and cognitive disabilities
- Specific seating accommodations where physically necessary, such as a movable aisle armrest
One change worth flagging: the DOT removed emotional support animals from the protected category in 2021. ESAs are now treated as regular pets and are subject to whatever pet policy the airline has — usually fees, carrier requirements, and breed restrictions. Service animals (trained to perform specific tasks for a person with a disability) remain fully protected.
Complaints about disability-access violations go to the DOT's Aviation Consumer Protection Division at 202-366-2220, or via the online complaint form at the DOT consumer site.
Tickets, prices, and the 24-hour rule
The DOT requires airlines and ticket agents to advertise the full all-in price of a fare — including all government taxes and any mandatory fees — as the headline number. Optional charges (checked bags, seat selection, priority boarding) can be added separately, but the base advertized fare cannot exclude unavoidable taxes.
The 24-hour cancellation rule requires airlines selling tickets at least 7 days before departure to either (a) hold a reservation at the quoted fare for 24 hours without payment, or (b) allow free cancellation within 24 hours of purchase. Most US carriers choose option (b) — book today, change your mind tomorrow, full refund. This applies to non-refundable tickets too. Use it as a free hold while you finalise the rest of the trip.
How to file a complaint
The order matters. Follow these steps and you maximise your chances of recovery without going to court:
- Contact the airline first, in writing. Email or web form. Keep copies. The DOT expects you to give the carrier 30 days to respond before escalating. State the facts, the rule you believe applies, and the specific outcome you want (refund, rebooking, compensation amount).
- If unsatisfied, file with the DOT at transportation.gov/airconsumer. The DOT does not adjudicate individual disputes the way a court does, but it logs complaints, investigates patterns, and can fine carriers — which means your complaint adds pressure even when it does not directly resolve your case.
- Credit-card chargeback under the Fair Credit Billing Act. If you paid by credit card and the airline failed to deliver the service it sold you, you can dispute the charge with your card issuer. This is often the fastest way to get money back when an airline drags its feet on a refund it owes.
- Small claims court for damages within your state's limit (usually $5,000–$15,000 depending on state). No lawyer needed. The airline will send one.
What you are NOT entitled to in the US
Set expectations realistically. The US does not have an EU261-style compensation regime, and several gaps that European travelers take for granted simply do not exist here:
- No guaranteed compensation for weather delays or other "extraordinary circumstances" cancellations. If the airline cancels for weather, ATC, or a security event, you get a refund (per the 2024 rule) but no penalty payout.
- No €250–600 compensation for ordinary delays. Even controllable airline-fault delays of 5+ hours pay nothing under federal rules — only a refund if the flight is canceled or significantly changed.
- No federal right to a free hotel or meals during disruptions. Many carriers offer these voluntarily for controllable cancellations (mechanical, crew-shortage), but it is policy, not law. The DOT publishes an Airline Customer Service Dashboard at transportation.gov so you can check what each carrier commits to in writing.
- No automatic re-routing on a competitor airline. Some carriers will interline you to a rival when their own next flight is far out; others will not. There is no rule forcing them to.
Travel insurance fills these gaps. A trip-delay or trip-interruption policy is the right tool for hotel costs, missed connections, and weather-driven disruptions where the airline owes you nothing.
Quick FAQ
Does US DOT rules or EU261 apply to my US flight?
Only if you are departing from the EU or UK on any carrier, or arriving on an EU- or UK-based carrier. Flights departing the United States on US carriers are governed by DOT rules, not EU261 or US DOT rules. A Delta flight from Atlanta to Paris falls under DOT for departure protections; a Lufthansa flight from Frankfurt to Atlanta falls under EU261.
How long do airlines have to refund me?
Under the 2024 DOT automatic refund rule, airlines must issue refunds within 7 business days for credit-card purchases and 20 calendar days for other payment methods, after a triggering event such as a cancellation or significant change.
Can the airline force me to take a voucher?
No. As of 2024, refunds for canceled or significantly changed flights must be issued in cash or to your original payment method unless you proactively choose to accept a voucher or travel credit instead.
What if my flight is just delayed and not canceled?
A delay alone does not entitle you to compensation under US rules. If the delay becomes a significant change (3+ hours domestic, 6+ hours international) or the flight is canceled, you are entitled to a refund. There is no EU261-style payout for ordinary delays.
What is the difference between voluntary and involuntary bumping?
Voluntary bumping is when you accept the airline's offer (usually a voucher) to give up your seat. Involuntary bumping is when the airline removes you from an oversold flight against your wishes — this triggers DOT-mandated cash compensation of 200% to 400% of your one-way fare, up to $2,150.
This guide is for educational purposes — not legal advice. Rules change. For the current DOT rules and procedures, check transportation.gov/airconsumer. CompareFlights does not file claims on your behalf and does not collect personal data through this page.