Airlines must refund you in cash when they cancel your flight or cause a delay of three or more hours — but only under U.S. Department of Transportation rules, and only if you do not accept a rebooking to your destination

The key rule is straightforward: if your flight is cancelled or delayed more than three hours and you choose not to rebook on another flight, the airline owes you the full ticket price back in the original payment method. If you accept a rebooking, you lose the refund right — the airline has fulfilled its obligation by getting you there, even if it takes much longer.

The three-hour clock starts when the aircraft door closes at your departure airport. A two-hour-and-fifty-nine-minute delay does not trigger a refund obligation. Weather, mechanical problems, crew issues, and air traffic control delays all count the same way: if the airline caused it or could have prevented it, the three-hour rule applies.

The airline must offer the refund in the form you paid — credit card refund, check, or original payment method. They cannot force you to take a travel credit, airline voucher, or rebooking instead. If they offer those options first, you have the right to refuse and demand cash.

Key Takeaways

  • You get a cash refund only if you reject the airline's rebooking offer; accepting a seat on another flight means you keep the ticket price and lose the refund right.
  • The delay must reach three hours at your final destination, measured from when the aircraft door closes at departure.
  • Airlines must refund in your original payment method — credit card, check, or debit card — not as a voucher or travel credit.
  • You must request the refund; the airline will not offer it automatically if you accept a rebooking.
  • Mechanical failures, crew problems, and scheduling errors all obligate refunds, but weather and air traffic control delays sometimes do not, depending on the specific circumstances.

How the three-hour rule works in practice

The Department of Transportation measures the delay from the moment the aircraft door closes at your departure gate until it opens at your final destination. If you are flying from New York to Los Angeles and the flight departs three hours late, you may have access to. If you are connecting through Denver and arrive in Los Angeles three hours late because of the first delay, you still may have access to — the rule looks at arrival time at your last stop, not intermediate ones.

The airline counts the delay from the scheduled departure time in your ticket, not from when you arrived at the airport or when boarding began. A flight scheduled to leave at 10 a.m. that actually leaves at 1 p.m. is three hours late, even if you checked in at 8 a.m.

If the airline cancels your flight outright, the three-hour rule does not explore — you get a refund or rebooking no matter how short the original flight was. A cancelled 45-minute flight still entitles you to a refund if you reject rebooking.

When you must choose between refund and rebooking

The moment the airline tells you the flight is delayed or cancelled, you face a choice. If you say yes to a rebooking on another flight — even one that leaves the next day — you have accepted the airline's solution and waived your refund right. The airline has then fulfilled its duty by getting you to your destination, and you keep the original ticket price as payment for that journey.

If you say no to rebooking, or if the airline cannot rebook you to your destination within a reasonable time, you can demand a refund. Some airlines will ask you to choose on the spot; others will rebook you automatically and make you call back to request the refund instead. Either way, the choice is yours, not theirs.

Read the rebooking offer carefully. If the airline offers to rebook you on a flight that arrives at a different city, or days later, or with multiple connections when your original was direct, you can refuse that specific rebooking and still demand a refund. The rebooking must be to your original destination and must be reasonably prompt.

Refunds for weather and circumstances beyond the airline's control

Weather is the most common exception to the refund rule. If your flight is delayed or cancelled because of a thunderstorm, snow, fog, or wind, the airline does not owe you a refund — they only owe you rebooking. The Department of Transportation treats weather as a circumstance the airline cannot prevent, even though the airline chose the schedule and the route.

Air traffic control delays and airport closures fall into the same category. If the FAA orders all flights grounded because of a system outage, or if your departure airport closes because of weather, the airline does not owe a refund. They must rebook you, but cash back is not required.

The line between weather and the airline's fault is not always clear. A mechanical problem caused by poor maintenance is the airline's fault. A mechanical problem caused by a manufacturing defect in the aircraft is sometimes treated as beyond the airline's control, depending on the specific case and the airline's maintenance history. If you believe the airline caused the delay, you can file a complaint with the Department of Transportation and explain why.

How to request your refund

Contact the airline directly — by phone, email, or the airline's website — and state that you are rejecting the rebooking and requesting a refund under Department of Transportation rules. Have your confirmation number and ticket number ready. Tell them the flight was delayed more than three hours (or cancelled) and you did not accept rebooking.

Some airlines process refunds quickly; others take weeks or months. If the airline refuses or does not respond within 30 days, file a complaint with the Department of Transportation at dot.gov/airconsumer. Include your ticket number, confirmation number, the flight details, and a copy of your request to the airline. The DOT will investigate and can order the airline to pay.

Keep all emails, receipts, and boarding passes. If the airline claims you accepted rebooking and you did not, your records prove otherwise. Screenshots of the airline's website or app showing the delay are also useful.

What the airline owes beyond the ticket price

The refund covers only the ticket price itself. The airline does not owe you compensation for meals, hotels, missed connections, or lost wages — that is a separate issue called consequential damages, and the airline's contract usually excludes it. You can pursue those costs in small claims court or through your travel insurance, but the Department of Transportation refund rule does not include them.

If the airline provides meals or hotel rooms while you wait for rebooking, those are separate from the refund. You get the refund of the ticket price, and separately, the airline may cover your expenses during the delay — but they are not required to by federal rule. Some airlines do it as a courtesy; others do not.

Refunds for connecting flights and multi-leg tickets

If you booked a round trip or a multi-leg journey on a single ticket, the refund covers the entire ticket price, not just the delayed leg. A New York to Los Angeles to San Francisco ticket that is delayed on the first leg entitles you to a refund for the whole journey if you reject rebooking.

If you booked each leg separately — one ticket from New York to Los Angeles, another from Los Angeles to San Francisco — each ticket is treated independently. A delay on the first leg does not automatically may have access to you to a refund on the second. However, if the delay causes you to miss the second flight and the airline will not rebook you on the second leg, you can request a refund for that ticket as well.

Frequently Asked Questions

Do I have to accept the airline's first rebooking offer?

No. You can refuse a rebooking if it arrives much later than your original flight, goes to a different city, or requires multiple connections. If you refuse, you can demand a refund instead. The airline must offer you a reasonable rebooking before they can deny a refund, but you get to decide what "reasonable" means for your trip.

What if I already accepted rebooking but now want a refund instead?

Once you accept rebooking, you have waived the refund right under Department of Transportation rules. You can ask the airline for a refund as a courtesy, but they are not required to give one. Your only option is to contact the airline and explain your situation — some will reverse the rebooking and issue a refund if you ask quickly enough.

Does travel insurance cover delays that the airline should refund?

Travel insurance and airline refunds are separate. If the airline owes you a refund under Department of Transportation rules, you should get that refund first. Travel insurance may cover additional costs like hotels or missed connections, but it does not replace the airline's obligation to refund the ticket price.

How long does the airline have to process my refund?

The Department of Transportation does not set a specific important date, but most airlines process refunds within two to four weeks. If more than 30 days pass and you have not received it, file a complaint with the DOT. Credit card refunds may take additional time depending on your bank.

Can the airline refund me in airline miles or a travel voucher instead of cash?

No. The airline must refund in your original payment method — credit card, check, or debit card. They can offer miles or a voucher as an alternative, but you have the right to refuse and demand cash. If they refuse to refund in cash, file a complaint with the Department of Transportation.