Here is the scene this guide exists for: the departure board flips to CANCELLED, a queue forms, and the first thing most passengers are offered is a voucher and a shrug. Under the rules in force today, that scene has a script the airline is not reading out loud. If you choose not to travel, a cancelled flight is owed back to you in cash - automatically, to your original payment method, even on a non-refundable ticket. The free Flight Rights Checker turns your exact situation into a verdict; this page explains the rules behind it.
Rule 1: The refund is cash, and it is automatic
Since the Department of Transportation's refund rule took effect in late 2024, an airline that cancels your flight - for any reason, weather included - or significantly changes it owes you a full refund if you decline the alternative offered. "Significant" means a departure or arrival moved by 3 hours or more on a domestic trip (6 hours international), a different airport, an added connection, or a downgrade in cabin. The refund covers the ticket plus bag and seat fees, must arrive within 7 business days on a card (20 days otherwise), and requires no form, no phone call and no fee. A voucher can be offered; accepting it is your choice, never the default.
Rule 2: Delays pay nothing in cash - but promises kick in
The United States has no law paying compensation for a delayed flight, and the proposed rule that would have created one was withdrawn in November 2025. What a delay does trigger, when you travel anyway, is your airline's own commitments filed with the DOT - and the DOT enforces them. They apply when the cause was within the airline's control: crew problems, maintenance, IT failures, cabin cleaning, baggage loading, fueling. After a 3-hour wait, all ten major US airlines commit to a meal or meal voucher. Stuck overnight, every major except Frontier commits to a free hotel and ground transport. Six of them - Alaska, American, Delta, Hawaiian, JetBlue and United - even commit to rebooking you on a partner airline at no extra cost. One caution: a DOT rule effective October 19, 2026 moved ten specific causes outside the "controllable" category, so ask for the cause of your disruption in writing - while remembering the refund right above does not depend on the cause at all.
Rule 3: Being bumped is worth real money
Overbooking is legal; removing you against your will is priced. Under federal rules, an involuntarily bumped passenger on a US departure is owed 200% of the one-way fare, up to $1,075, if the replacement arrives 1-2 hours late, and 400%, up to $2,150, if it arrives more than 2 hours late (international windows are 1-4 and 4+ hours). Payment is due in cash or by check at the airport the same day, with a written statement of your rights. This is why airlines auction for volunteers first - a volunteer's price is whatever they accept, which is usually less than the law's. If you are the one being chosen, "I'll take the cash amount, please" is a complete sentence.
Rule 4: Your bag has rights too
A checked bag delayed 12 hours or more on a domestic trip (15-30 hours internationally) earns the bag fee back, once you have filed a mishandled-bag report - file it before you leave the airport. A bag declared lost is compensated up to $3,800 in value on domestic trips, about $1,700 under the Montreal Convention internationally. Keep receipts for essentials bought while you wait; they are claimable, and they are the part everyone forgets in the moment.
Rule 5: Europe plays by richer rules
If your flight departs the EU or UK, or arrives there on an EU/UK airline, EU261/UK261 adds fixed compensation on top of refunds and care: €250 to €600 by distance (£220 to £520 in the UK) for arrival delays of 3 hours or more, most short-notice cancellations, and involuntary bumping - as long as the cause was not extraordinary. Claim it on the airline's own form for free. The companies advertising in the search results will happily file the same form and keep a quarter to a third of your money.
What to do at the gate, in order
One: decide whether you still want the trip - your refund right is strongest before you accept an alternative. Two: ask what the cause is, and note the answer, the time, and the agent's name. Three: claim the commitment that matches it - meal at 3 hours, hotel if overnight, partner rebooking if your airline lists one. Four: if you are bumped, ask for the written statement and the cash amount. Five: if a refund stalls, file a complaint with the DOT - airlines answer those, because the DOT counts them. And before the next trip, run your situation through the Flight Rights Checker so you know your number before anyone offers you theirs.
Frequently asked questions
Can I get a refund if my flight is cancelled due to weather?
Yes. The US DOT refund rule applies whatever the reason for the cancellation, including weather. If you choose not to accept the rebooking or a voucher, the airline must refund the full ticket and fees to your original payment method. What weather removes is the extra care commitments (meals, hotels), not the refund.
How long does an airline have to refund a cancelled flight?
Refunds must be automatic and prompt: within 7 business days for credit card payments and 20 calendar days for cash, check or other methods, once you have declined the alternative offered. You should not have to call and ask.
Is a travel voucher the same as a refund?
No. A refund returns your money to your original payment method. A voucher keeps your money inside the airline, usually with an expiry date. Airlines may offer vouchers - sometimes with a bonus - but if you are entitled to a refund, taking cash instead is your right.
What should I say if I am bumped from a flight?
Ask three things: that it be recorded as an involuntary denied boarding, for the written statement of your rights (the airline must provide it), and for your compensation in cash or check rather than a voucher. The amount is 200% of your one-way fare up to $1,075 (arriving 1-2 hours late) or 400% up to $2,150 (2+ hours late) on domestic flights.