Federal law gives you enforceable airline passenger rights on any flight to, from, or within the United States: automatic cash refunds when a flight is canceled or significantly changed, refunds of fees for services the airline didn’t deliver, set compensation if you’re bumped involuntarily, time limits on tarmac delays, minimum baggage liability, and protections for travelers with disabilities. The Department of Transportation enforces these rules, and changes finalized in 2024 and taking effect through 2025 strengthened them considerably.
Refunds When Your Flight Is Canceled or Significantly Changed
A DOT rule finalized in April 2024 requires airlines to issue automatic refunds when they cancel a flight or make a significant schedule change and you decide not to travel.1US Department of Transportation. What Airline Passengers Need to Know About DOT’s Automatic Refund Rule The airline has to start the refund on its own. You do not have to fight your way through a phone queue for it.
A “significant change” means a domestic flight departing or arriving three or more hours off schedule, or an international flight shifting by six or more hours.2US Department of Transportation. Refunds Other triggers include rerouting through a different connecting airport, being downgraded to a lower class of service, or added connections. If any of that happens and you turn down the new itinerary, the airline owes you a full refund in your original form of payment. Not a voucher. Not a travel credit.
Refunds for Baggage Fees and Ancillary Services
Under 14 CFR Part 260, if you paid for something the airline failed to deliver, you’re owed an automatic refund of that fee.3eCFR. 14 CFR Part 260 – Refunds for Airline Fare and Ancillary Service Fees Broken Wi-Fi you paid for. A seat selection that got reassigned. Lounge access you couldn’t use because the flight was canceled. If the failure hits everyone on board, the airline’s obligation kicks in as soon as it knows the service is out. If it only affects you, telling the airline counts as your refund request.
Checked bag fees now have their own trigger. If your checked bag isn’t delivered within 12 hours of your domestic flight reaching the gate, the airline must automatically refund the bag fee. For international flights of 12 hours or less, the window is 15 hours; for longer international flights, 30 hours.4Federal Register. Refunds and Other Consumer Protections You do need to file a mishandled baggage report at the airport for the clock to start. The refund covers the fee itself, not the contents of the bag.
What Airlines Owe You During a Controllable Delay
Not every delay carries the same obligations. Weather, air traffic control problems, and security events are generally treated as uncontrollable. Mechanical issues, crew scheduling failures, and IT outages are controllable, and that’s when an airline’s published commitments apply.
The DOT’s Airline Customer Service Dashboard tracks what each major carrier has promised for controllable cancellations and delays. All ten largest U.S. airlines commit to rebooking you at no cost on another of their flights and providing a meal or meal voucher when the wait exceeds three hours.5US Department of Transportation. Airline Customer Service Dashboard Nearly all commit to free hotel accommodations and ground transportation when a controllable disruption strands you overnight. Not all commit to rebooking you on a partner or competitor when their own flights are full.
These are public pledges rather than regulations backed by direct fines, but the DOT treats them as promises it can enforce. If an airline refuses to honor what it committed to, filing a DOT complaint creates a record the agency can act on.
Cash Compensation If You’re Bumped Involuntarily
When a flight is oversold and not enough people volunteer to give up their seats, an airline can bump you against your will. Federal regulations set minimum cash compensation, and the amounts went up effective January 2025.6Federal Register. Periodic Revisions to Denied Boarding Compensation and Domestic Baggage Liability Limits Before bumping anyone, the airline has to ask for volunteers and explain what it’s offering them.
The mandatory payment depends on how late you arrive at your final destination:7eCFR. 14 CFR 250.5 – Amount of Denied Boarding Compensation for Passengers Denied Boarding Involuntarily
- Arrival within one hour: no compensation required.
- Domestic delay of one to two hours: 200% of your one-way fare, capped at $1,075.
- Domestic delay over two hours, or international delay over four hours: 400% of your one-way fare, capped at $2,150.
- International delay of one to four hours: 200% of your one-way fare, capped at $1,075.
The airline has to pay by check or cash on the spot if you ask for it. If you accept a voucher instead, you may be waiving your right to the cash payment. You’re also entitled to a written notice at the airport explaining these rights.
A few situations let the airline off the hook: removal for safety or security, missing the check-in deadline, or a downgauge to a smaller aircraft with 30 or fewer seats for operational reasons.
Baggage Liability for Lost, Damaged, or Delayed Bags
Coverage runs on two separate tracks depending on whether your trip is domestic or international.
Domestic Flights
For travel within the United States, airlines cannot cap liability for lost, damaged, or delayed bags below $4,700 per passenger.8eCFR. 14 CFR Part 254 – Domestic Baggage Liability That’s the ceiling of what you can recover, not a guaranteed payout, and you still have to prove the value of what was lost. Airlines exclude specific categories from coverage in their contracts of carriage, commonly cash, jewelry, electronics, and fragile items.9US Department of Transportation. Lost, Delayed, or Damaged Baggage Check the contract before packing anything you can’t afford to lose in a checked bag.
International Flights
International claims fall under the Montreal Convention, which caps liability at 1,519 Special Drawing Rights per passenger, roughly $2,000 at recent exchange rates.10ICAO. International Air Travel Liability Limits Set to Increase, Enhancing Customer Compensation SDRs float with a basket of currencies, so the dollar equivalent shifts. Written complaints for damaged bags must be filed within 7 days of receiving the bag; for delayed bags, within 21 days of the bag being returned. Formal legal claims can be pursued for up to two years after the incident.
What to Do at the Airport
File a Property Irregularity Report at the baggage service counter before you leave the terminal. That report is the foundation of any claim. Beyond the value of lost items, airlines must reimburse reasonable interim expenses for necessities like clothing and toiletries while your bag is missing. Save every receipt. Photos of your bag’s contents and purchase receipts for anything valuable inside will strengthen the claim.
Tarmac Delay Limits
Federal rules put hard time limits on how long an airline can keep you sitting on the plane. For domestic flights, the airline must give you a chance to deplane before the delay reaches three hours. For international flights, the limit is four hours.11eCFR. 14 CFR 259.4 – Contingency Plan for Lengthy Tarmac Delays For departing flights, the clock starts when the aircraft door closes.
Three narrow exceptions let the airline keep you on board past the limit: the pilot determines that deplaning would create a safety or security risk, air traffic control advises that returning to a gate would significantly disrupt airport operations, or the aircraft has already begun heading back to a gate to unload passengers.
Whether or not an exception applies, the airline must provide food and drinking water no later than two hours into any tarmac delay, keep restrooms functional throughout, and notify you of the delay status once the wait exceeds 30 minutes.12US Department of Transportation. Tarmac Delays If two hours pass without water or snacks, say something. Crews occasionally lose track during chaotic situations.
Accommodations for Passengers with Disabilities
The Air Carrier Access Act prohibits airlines from discriminating based on disability. The DOT’s rules under 14 CFR Part 382 apply to all U.S. airline flights and to foreign carriers operating flights to or from the United States.13US Department of Transportation. About the Air Carrier Access Act Airlines must help with boarding, deplaning, and connections when you request it, and they cannot require you to travel with an attendant unless specific safety-related criteria apply.
Since January 2021, the only animals airlines are required to accommodate as service animals are individually trained dogs performing tasks for a person with a disability. Emotional support animals no longer qualify as service animals under federal law, and airlines may treat them as pets under their standard pet policies.14Federal Register. Traveling by Air With Service Animals Individual airlines can still allow them at their discretion.
Wheelchairs and other mobility aids sit outside the normal baggage liability caps. If an airline damages or destroys a wheelchair, scooter, or other assistive device, it must compensate you based on the original purchase price of the device.15eCFR. 14 CFR 382.131 – Do Baggage Liability Limits Apply to Mobility Aids and Other Assistive Devices Power wheelchairs can run $15,000 to $40,000 or more, so this distinction matters. Document the make, model, and value of your device before you fly.
Flying from Europe: EU 261 Compensation
If you’re flying out of an EU airport on any airline, or arriving in the EU on an EU-based carrier, a separate and generally more generous set of rules applies under EU Regulation 261/2004.16Your Europe. Air Passenger Rights Americans connecting through European hubs or flying transatlantic should know these apply.
When a flight is canceled without sufficient notice or arrives very late, EU rules provide fixed compensation based on flight distance:
- Flights up to 1,500 km: €250.
- Flights within the EU over 1,500 km, or other flights between 1,500 and 3,500 km: €400.
- Flights over 3,500 km: €600.
This compensation is paid on top of any refund or rebooking.17European Consumer Centers Network. Flight Cancellation Airlines can reduce it by 50% if they rebook you on an alternative flight arriving close to the original schedule. Extraordinary circumstances like severe weather or a security threat exempt the airline. The UK maintains a similar framework for flights departing British airports.
Filing a Complaint with the DOT
When an airline violates your rights and refuses to fix it, start by pushing at the airline itself, first at the airport and then through corporate customer service. If that fails, file through the DOT’s online complaint portal.18US Department of Transportation. File a Consumer Complaint
For disability discrimination and other civil rights violations, the DOT forwards your complaint to the airline, requires a response to both you and the agency, reviews it, and sends you findings. For general service complaints like refund disputes or baggage claims, the DOT directs the airline to respond to you and copy the agency. The DOT doesn’t investigate every individual service complaint, but it uses the data to identify chronic violators and target enforcement.19US Department of Transportation. Aviation Consumer Protection Safety concerns about pilot behavior or aircraft condition go to the FAA instead, and screening or no-fly list issues go to the TSA.