How many months out to buy international flights?

Typically, the best time to book a flight is one to two months out for domestic trips. And for international flights, the best time to book is six to eight months out. However, there are many factors that can lead to an increase (or decrease) in the price of an airline ticket.



For the best value on international flights in 2026, the "Goldilocks window" is generally 4 to 6 months before your departure. Data from major travel platforms suggests that booking too early (more than 10 months out) often results in higher "placeholder" prices, while booking too late (less than 6 weeks out) subjects you to the extreme price surges of last-minute demand. For popular summer destinations or holiday periods like December, you should aim for the 6-month mark to secure both a lower fare and your preferred seat assignments. If you are traveling during the "shoulder season" (like October or April), the 3-to-4-month window often yields the best deals as airlines begin to discount unsold inventory. In 2026, with the widespread use of AI-driven dynamic pricing, it is also recommended to set up price alerts on Google Flights or Hopper at least 7 months in advance; this allows you to monitor the "baseline" price and jump on "flash sales" that typically occur mid-week. Remember that for international travel, the cheapest days to fly remain Tuesday and Wednesday.

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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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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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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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The cheapest months to travel are:
  • November – early December.
  • Late January – March.


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Expedia's report also notes travelers can look forward to a 3 percent decrease in booking airfare in 2024, compared to the higher prices of 2022.

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On most airlines, you cannot book more than a year in advance. Airlines typically release their flight schedules and open bookings around 6 to 11 months in advance. This means that you can make reservations for flights up to almost a year (12 months) ahead of your intended departure date.

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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.

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The Cheapest Time to Fly Internationally is from February-March. Granted this one's a bit of a misnomer, because yearly price trends on international flights are typically dictated primarily by the high and low seasons of the destination abroad.

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Consider seasonality before booking Seasonally, demand typically slows around mid- to late June, as most travelers have already booked their vacations for peak May, June and July travel. Lower demand for late summer and early fall travel means you may be able to get lower airfare by traveling in September or October.

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Buy your tickets at the right time (to the extent possible). Airfares flex like crazy, but in general it's wise to start looking for international flights at least four to six months before your trip, especially for travel in spring, summer, or fall.

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A good rule of thumb is to start looking roughly 6 months before your specific travel dates, and not wait much later than 3 months before you're planning to get into the skies.

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Remember: Don't wait too long to book your flight in hopes that fares will keep dropping. A little over a month before your trip may be the sweet spot for finding the lowest price. But if you haven't booked your flight within three weeks of your travel dates, you're most likely going to wind up paying more.

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Usually infants must be at least two weeks old before they can travel although some airlines allow seven-day old infants on board. The booking policy differs from one airline to another, so it is important to check directly with the airlines. . But three to seven months is a great window .

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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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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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Inflation is pushing the prices of most basic items higher in 2023. “This is putting pressure on the airlines' costs,” says Berg. She adds, “It's affecting everything from the pilots' salaries to the price of the snacks they hand out on the flights.”

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