What time do flight prices change?

The reality is that flight prices change constantly and at all hours of the day, adjusting to real-time demand. 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.



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Flights are generally the most inexpensive between four months and three weeks before your departure date. Seasonal changes and holidays can create price fluctuations in ticket prices.

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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 reality is that flight prices change constantly and at all hours of the day, adjusting to real-time demand. 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.

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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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No, Tuesday isn't the cheapest day of the week to buy flights. In the early days of online flight booking, airlines used to manually post their updated prices at a certain time of day each week.

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If you are committed to getting the cheapest airfare possible, what time of the day to buy your ticket also matters. Online research has shown that the answer to when are flights cheapest to book on any given day is around 05:00. So, set the alarm, and get up early for that flight deal.

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Why are ASAP Tickets so cheap? ASAP Tickets, a brand belonging to International Travel Network, has access to private fares negotiated by ITN and partner consolidators that do not sell directly to the general public.

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Best day to shop: The best time to book a U.S. flight is usually Tuesday at about 3 p.m. eastern time. Many airlines release weekly airfare sales in the early morning hours of Tuesday, and by mid-afternoon, competing airlines have matched sale prices. In other words, shoppers now have the most deals to choose from.

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Historically, travelers have been advised to book flights on Tuesdays to get the best flight deal. And there was a time when this was true. A decade ago, airlines generally launched new sales on Tuesdays, and airlines were generally quick to match each other's prices. This could lead to cheap flight deals on Tuesdays.

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Cost and convenience. When it comes down to it, booking directly through the airline is almost always more convenient. If the price changes after you buy your ticket, many airlines will get you the difference back.

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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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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.

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There are a number of reasons why airline prices fluctuate. These factors include booking and flight seasons, holidays, seasonal changes, and overall volatility. For instance, the travel restrictions put in place during the COVID-19 pandemic pushed prices down as demand for travel waned.

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There's no sugarcoating it: Airfare is expensive. And while waiting until the last minute might sound like a good idea, it typically is cheaper to book your flights in advance. We are seeing fewer last-minute deals than in years past, especially when it comes to flights, a Kayak spokesperson tells Travel + Leisure.

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