In the US, airlines must let you cancel for a full refund within 24 hours of booking, as long as you booked at least 7 days before departure and directly with the airline. It applies to every fare class, including basic economy. Outside the US it depends on the airline.
US Department of Transportation rules require airlines flying to, from or within the US to either hold a fare for 24 hours without payment, or allow a free cancellation within 24 hours of purchase — the airline chooses which. Most offer the free 24-hour cancellation.
The conditions:
- You booked at least 7 days (168 hours) before departure.
- You booked directly with the airline (many online agencies don’t honor it, or apply their own version).
- It covers all fare types, including non-refundable and basic economy.
Use it as a safety net: book the fare you want to lock the price, then double-check dates, names and connections within the day. If something’s wrong, cancel for a full refund and rebook.
Outside the US there’s no universal equivalent — some airlines offer a grace period voluntarily, but check the fare rules before you rely on it.
Related questions
Can I change or cancel my flight, and will there be a fee?
Most US airlines dropped change fees on standard economy and above, so you pay only any fare difference — but basic economy is usually non-changeable and non-refundable. Cancelling a non-refundable fare typically gives a travel credit, not cash. Check your fare rules before booking. Full answer →
What is basic economy, and should I book it?
Basic economy is a stripped-down fare: no seat selection, no changes, often no carry-on or checked bag, and last boarding group. Fine for a short trip with a backpack; usually a poor deal once you add a bag and a seat. Full answer →
My flight was cancelled — what are my rights?
Everywhere: a refund or rebooking, your choice. In the EU/UK: also meals, hotel if overnight, and up to €600 compensation unless the cause was extraordinary. In the US: a cash refund is required for cancellations; compensation is not, though some airlines offer it voluntarily. Full answer →
Airline, airport and government rules change without notice. Treat this as a starting point and confirm with the airline or authority for your specific trip. Request a correction if something is out of date.