The 24-Hour Rule: Free Flight Cancellation Explained
Last reviewed
The short answer
US Department of Transportation rules require airlines to let you cancel a booking within 24 hours of purchase for a full refund to your original payment method, provided you booked at least seven days before departure. It applies to every fare including Basic Economy — this is the one window in which the cheapest ticket on the aircraft is fully refundable.
Key Travel Facts & Insights
- Applies to all fares including Basic Economy and ultra-low-cost carriers
- You must have booked at least seven days before departure
- Refund goes to your original payment method, not to a voucher
- Some airlines offer a 24-hour price hold instead — a different and equally useful thing
What the rule actually says
The DOT requires airlines selling tickets for flights to, from or within the United States either to hold a reservation at the quoted fare for 24 hours without payment, or to allow cancellation within 24 hours of purchase for a full refund. Most carriers chose the second option.
The refund must go back to the original form of payment. An airline that offers only a voucher during the 24-hour window is not complying with the rule.
The seven-day condition
The rule only applies when the booking was made at least seven days before the flight departs. Book a ticket for tomorrow and the 24-hour window does not attach to it.
Some carriers apply the rule more generously than required. Alaska honours the 24-hour cancellation regardless of how far out you booked, and American offers a 24-hour hold in addition to the 24-hour refund. Others apply exactly the legal minimum.
How to use it deliberately
The 24-hour window is genuinely useful as a planning tool, not just a safety net. If you find a good fare but need to confirm a hotel, a meeting date or a travelling companion, you can book, hold the fare, and cancel free within 24 hours if it falls through.
It is also the correct response to a booking mistake. Wrong date, wrong airport, misspelled name, wrong fare brand — cancel within 24 hours and rebook rather than paying a correction fee.
Booking through a third party
The rule applies to the ticket, but the practical process depends on who sold it. If you booked through an online travel desk or consultant, cancel through them rather than with the airline directly — the airline may not be able to process a refund on a ticket it did not sell.
Some third-party sellers add their own service fee on top. The DOT rule covers the airfare; a separately disclosed service fee may not be refundable.
Common questions
Does the 24-hour rule apply to Basic Economy?
Yes. This is the one window in which Basic Economy is fully refundable. The rule applies to every fare class sold for travel to, from or within the US, including ultra-low-cost carriers like Spirit and Frontier, provided you booked at least seven days before departure.
Does the 24-hour rule apply to international airlines?
It applies to any airline selling tickets for flights to or from the United States, including foreign carriers. Lufthansa, British Airways, Emirates and others all honour it on tickets sold in the US market.
What if I booked less than seven days before the flight?
The rule does not apply, and normal fare rules govern. Some carriers voluntarily extend the window anyway — Alaska is one — but you cannot rely on it. On a last-minute booking, check the fare rules before you pay.
Related
More in Changes & Cancellations
Need help with your own booking?
Our US travel consultants handle changes, cancellations, refunds and claims directly. No charge to ask.