Search flights

Add Price Drop Protection and Expedia will pay you back if your flight gets cheaper.*

As a One Key member, you can earn OneKeyCash on top of airline miles.

Save up to 30% when you add a hotel to your flight as a One Key member

Popular flight destinations

Flight deals departing near you 

Tips on booking cheap flights

Looking for the best time to buy airline tickets to get a cheap flight to everywhere? We’ve got you covered anytime, anywhere. Here’s how to find the best deal for flight booking no matter where you want to go in the world.

 

Which day of the week is the best day to buy cheap airline tickets?

For both U.S. domestic and international travel, Sundays can be cheaper for airline ticket purchases. Fridays tend to be the most expensive day to book a flight. Booking on the right day of the week could save you up to 6% on your airfare, according to historical data*.

 

When is the best time to buy airline tickets?

Based on 2020 And 2021 global flight data for Economy tickets, prices usually start to increase 56 days before departure for domestic flights. When traveling internationally, prices usually start to increase 21 days before departure*. Keep in mind that this isn’t a hard-and-fast rule; keeping an eye on prices is a good idea when trying to find the best airfare deals. Compare fares across different airlines, and set up a price alert for your preferred route.

 

Which are the cheapest days to fly?