What day is the cheapest time to buy flights?

Another recent study done by Google found that flight prices on Tuesdays, Wednesdays and Thursdays were 1.9% cheaper on average than flights on Saturdays and Sundays. However, Google's conclusion in releasing its study results: “There isn't much value in purchasing your tickets on a certain day of the week.”



In 2026, the long-held myth that "Tuesday at midnight" is the cheapest time to click purchase is largely obsolete due to the rise of AI-driven dynamic pricing. Instead, the cheapest time to fly is typically Tuesday or Wednesday, as these mid-week days see the lowest demand from both business and leisure travelers. For the best prices, you should aim to book your flight roughly 1 to 3 months in advance for domestic trips and 2 to 8 months for international ones. Data from 2025 and 2026 shows that Sunday is often the cheapest day to actually book the ticket, as airlines occasionally adjust their fare buckets over the weekend. However, the most effective strategy is to use "Price Tracking" tools like Google Flights or Hopper. These tools monitor the volatile price fluctuations and alert you when the fare hits its historical low for your specific route, allowing you to bypass the guesswork of "which day" to buy and instead focus on the specific "price window" that offers the best value.

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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.

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The process is largely controlled by computer software and is increasingly being bolstered by AI, so price changes can happen at any second. That's why there's no specific time of day — or even a specific day of the week, for that matter — that's best for booking cheap flights.

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Domestic airline prices are on the decline in 2023, finally retreating after spiking just a year ago. International fares are still high. After soaring in 2022, prices for domestic airline tickets are on the descent.

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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.”

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Those who buy on Sunday instead of Friday (the most expensive day to shop for plane tickets) will save on average 17% on domestic flights and 24% on international ones.

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The same report claims that you should book flights at 5am for the most potential savings, avoid booking flights between 8–11pm, and book on Tuesdays for domestic flights and Wednesdays for international flights.

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The process is largely controlled by computer software and is increasingly being bolstered by AI, so price changes can happen at any second. That's why there's no specific time of day — or even a specific day of the week, for that matter — that's best for booking cheap flights.

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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.

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At midnight, fewer people travel and there is low last-minute reservation so to fill them, they release multiple offers. With these discounts, you can set aside some amount.

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“Historically, Tuesdays were the cheapest day to book flights,” says Laura Lindsay, global travel trends expert for trip-booking website Skyscanner. “This was broadly true prepandemic as seasonality and even weekly pricing cycles were more predictable. However, this is no longer a hard and fast rule.”

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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.

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In this post
  1. Ignore the Cheap Flight Myths.
  2. Keep Your Plans Flexible & Book Your Flights First.
  3. Flying Direct Can Cost More Money than Time.
  4. Book Cheaper Flights By Traveling at the Right Time.
  5. Sign Up for Discount Flight and Cheap Airfare Notifications.
  6. Start Your Search with Your Best Friend, Google Flights.


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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.

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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.

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Skyscanner UK, also way back in 2019, reached a similar conclusion. They found that Sunday was typically the cheapest day to book your flight – while flying out on a Friday would usually help keep costs low.

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Generally, Tuesday, Wednesday and Saturday are the cheapest days to fly, while Fridays and Sundays are pricier, according to travel deal site FareCompare. Leisure travelers tend to fly on the weekends, either starting their vacations on Friday or taking a long weekend Friday to Sunday.

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World's Best Low-Cost Airlines 2023
  • AirAsia.
  • Scoot.
  • IndiGo.
  • Flynas.
  • Volotea.
  • Transavia France.
  • Sun Country Airlines.
  • Southwest Airlines.


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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.

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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.

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Why are flights so expensive in 2023? Flights cost even more in early 2023 than they do now. Factors such as fuel costs, staffing shortages, aging IT infrastructure and hidden fees all contribute to expensive flights in 2023.

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