How far out should you book a flight to save money?

How far in advance should you book a flight to get the best deal? The best time to book a flight is one to three months before your departure for domestic airline tickets and two to eight months prior for international flights. “We call these the 'Goldilocks windows,'” Scott Keyes, founder of Going.com, tells AFAR.



For 2026 travel, the "sweet spot" for booking domestic flights is now 15 to 45 days before departure, which is much closer than in previous years. According to 2026 "Air Hacks" data, booking too far in advance (more than six months out) can actually cost you about 15% more, as airlines haven't yet released their "deal" inventory. For international travel, the window is wider: you should aim for 3 to 5 months out. Specifically, the cheapest day to book is now Friday, which has replaced Tuesday in many markets as the best day for deals, while the cheapest day to fly is also Friday or midweek (Tuesday/Wednesday). For major holidays like Christmas or Summer peak, the old rule still applies: book as soon as you see a price you are comfortable with. Using AI-driven price trackers like Google Flights or Hopper is now a peer-to-peer standard to "watch" a fare and strike when the algorithm predicts the lowest point, usually about a month before takeoff.

People Also Ask

The general rule is that for domestic flights, travelers should start searching for flight tickets one to three months in advance. For international flights, the best prices are typically available from two to eight months in advance. Prices can also vary widely among airlines.

MORE DETAILS

Timing plays an important part. Specifically, plane tickets usually don't get cheaper closer to the departure date. Instead, flights tend to be the most inexpensive when you book between four months and three weeks before your departure date.

MORE DETAILS

Timing plays an important part. Specifically, plane tickets usually don't get cheaper closer to the departure date. Instead, flights tend to be the most inexpensive when you book between four months and three weeks before your departure date.

MORE DETAILS

Book airfare on Sunday. Data shows that, at least a good part of the time, booking airfare on Sunday is cheaper than other days of the week. If you have the option to shop for travel at any time, waiting until Sunday could yield 5 percent to 15 percent in savings.

MORE DETAILS

Tuesdays and Wednesdays are the cheapest days to fly domestically. The cheapest days to depart if you're flying within the U.S. are midweek — generally Tuesday or Wednesday. For economy tickets, Tuesdays are about 24% lower than peak prices on Sundays, which translates to savings of about $85 per ticket.

MORE DETAILS

Early to midweek tends to be cheaper on off-peak days, and as a rule of thumb, the busier the weekend, the more the flight is going to cost. “I've found that it is generally cheaper to fly on Tuesdays, Wednesdays and Saturdays,” adds Dengler.

MORE DETAILS

Timing plays an important part. Specifically, plane tickets usually don't get cheaper closer to the departure date. Instead, flights tend to be the most inexpensive when you book between four months and three weeks before your departure date.

MORE DETAILS

Time your booking right
“For domestic flights, if you're talking peak season, it's about three to seven months in advance,” he says. “For international flights — [it's] four to 10 months.”

MORE DETAILS

Tuesday Around Midnight is the Cheapest Time to Book
In general, flights were slightly cheaper at midnight earlier in the week (Monday through Wednesday). However, this is only applicable to about 1.6% of U.S. markets, meaning that it's not likely you'll find the same savings on your specific route.

MORE DETAILS

How often do airlines update airfare information online? The airlines update fare information 3 times a day. They do not necessarily change airfare prices all three times, but they certainly can, and often do.

MORE DETAILS

He explained: If you're travelling domestically, the Goldilocks Window for when you're most likely to see a cheap flight is 1-3 months before flying. For international flights, it's 2-8 months in advance. This changes if you are wanting to travel during a busy time of year.

MORE DETAILS

Is there a cheapest month to fly? If you're looking for a bargain month to travel, February is your best bet. Flights in January closely follow February for being most affordable. At the other end of the spectrum, December and July are the first and second most expensive months to travel, on average.

MORE DETAILS

“If it's an off-peak season — not middle of summer, Christmas or New Year's — then booking about one to three months in advance is typically when cheap flights have the highest likelihood of popping up,” he said. “When you're talking about international travel, two to eight months in advance.”

MORE DETAILS

Generally, you should book domestic flights one to four months in advance. For international flights, you should book at least six months in advance. You'll want to give yourself more time for research for the latter than when traveling on domestic itineraries.

MORE DETAILS

Flying to Europe in 2024 without spending a fortune is in the cards after a long stretch of sky-high prices. Airlines have added new routes between the U.S. and Europe and announced plans to increase flights on some routes next spring and summer.

MORE DETAILS

Flights typically open for booking 331 days in advance, and from then until about 21 days before departure, the price is the least expensive you'll find — after which they raise ticket prices at 14 days, and again at seven days. Research shows that the sweet spot for finding low fares is 44 days before your flight.

MORE DETAILS

More specifically, Tuesday at about 15:00 eastern time. This is because many airlines release weekly sales early on Tuesday, which creates competition between airlines to match prices.

MORE DETAILS

It mostly comes down to supply and demand. Demand is contributing to higher prices as travel continues to surge post-pandemic, Berg said. Sustained strong demand in 2023 continues to put additional pressure on prices, especially to and within regions where travel has only recently reopened like parts of Asia.

MORE DETAILS

Airlines don't restock on the same day every week like a grocery store, so you won't find deals by waiting until Tuesdays to book. However, you might find some modest savings if you're willing to fly on a Tuesday or Wednesday, when there's less demand than usual.

MORE DETAILS