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What Is the Cheapest Day to Book a Flight?

Is there a best day of the week to book a flight in order to get the lowest price? And if so, what is that day? Of all the travel questions I’m asked, those are the two that most frequently come up. And in these days of rapid price movements, nobody seems to have a definitive answer. But that hasn’t stopped many experts from having an informed opinion. Here’s the current thinking on the best day of the week to book a flight.


Popular metasearch agency Fare Compare is pretty sure that the best day of the week to book airfare is Tuesday (and to be even more specific, Tuesday around 3:00 p.m. ET). The company’s CEO, Rick Seaney, explains that airlines often start short-term airfare sales on Tuesdays, and, once one airline announces deals, competitors hop in within a matter of hours. He also notes that the buying window for these promotions is often quite short, sometimes closing before the upcoming weekend. A report from Expedia comes to the same conclusion, as does another from USA Today.

Related: The 2 Cheapest Days of the Week to Fly

Wednesday and Thursday, Too

Lifehacker says 1:00 a.m. ET on Wednesday is the best time to book airfare, but that’s probably a minor variation on the Tuesday theme. A Wall Street Journal report expands the period to Tuesday through Thursday. Both seem to reflect the same view that fare announcements come mostly on Tuesday and that many deals dry up by the weekend.

This is generally accurate, as far as it goes: Many short-lived sales are announced on Tuesdays and expire at the end of the day Thursday. But does that mean that other days offer less value when booking airfare? Not so fast!


Texas A&M University released a report last year that contradict what the author calls the “folk wisdom” about Tuesdays. The researchers found that tickets bought on Saturdays and Sundays were about 5% cheaper, on average, than those bought on other days. But average prices may not be the right metric: What most consumers want to know is the lowest price, and average data may not correlate well with the lowest figures.

Related: When Should I Buy My Flight?

The ‘No Best Days’ Take

George Hobica, President of our sister website Airfarewatchdog, argues that there really isn’t a best day. Fares move too fast to fall into a set pattern. Instead, his primary recommendations are: (1) to keep searching, (2) to sign up for as many airfare bulletins and alerts as possible, and (3) to pounce when you find what looks like a good deal.

As long as you’re looking out less than a week in advance, U.S. rules require that an airline give you a 24-hour period to lock in a good deal while continuing to search for a better one. Sounds like a really good strategy. I add only that once you find what looks to you like a good deal, don’t obsess over the possibility that someone else might find a better one. Chances are the difference, if any, will be small, and not big enough to cause buyers’ remorse.

Instead, just enjoy the trip.

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