International flights are highly dynamic. Search for a flight in the morning and look again in the evening; you might experience an increase in price. So, when to book? What is the best time to book flights? International flights are more expensive than domestic flights, and thus such questions might take place in your head. Airlines use an automated pricing system that regularly updates the prices of the flights based on demand. It means the best time to book is when demand for the tickets is the lowest.
Now, how to spot the best time to get the maximum value. The prices can differ significantly based on the day and time you search for a flight. In this guide, you will learn exactly the best time and the best days to book a flight to get an affordable deal every time you fly.
When Is The Best Time To Book International Flights?
When to book becomes more crucial for international flights because the price differences are greater and the booking window is longer. So, when is the best time to book a flight internationally? The ideal time to book an international flight is 3 to 6 months before the flight departure. Airlines release the international tickets 11 months earlier at a higher rate. Prices tend to drop later and rise significantly in the last 21 days. Therefore, do not book too early; book at the right time.

It is also important to understand what time of day is best to book a flight. Many studies related to airline pricing systems suggest that fares are refreshed and adjusted several times a day. Try to search for a flight during the early morning, late night, or just before peak daytime. These time zones may offer you a better deal. However, the price difference is much smaller compared to the advance booking window, but you can keep it an option.
The following is a general guideline on best times to book flights for international travel based on the type of travel:
| Route Type | Ideal Booking Window |
| Transatlantic (US-Europe) | 3 to 5 months in advance |
| Transpacific (US-Asia) | 4 to 6 months in advance |
| Long-haul leisure routes (Hawaii, island destinations) | 4 to 7 months in advance |
Reservations made too early (more than 8 months out) frequently result in overcharging for early release fare. The airline may not have fully finalized competitive pricing. If you book too late (less than 3 weeks before the trip), you are practically guaranteed to pay a premium last-minute fare. But the best time to book flights on an international route is in the middle, when flights are still competitive, and seats are still available in several fare levels.
Which are the Best Days to Book a Flight?
Most passengers often ask if there are really the best days to book a flight. Yes, but do not get confused with the booking day; it’s actually the flying day. It means the flying day is more important than the booking day. International fares are typically lower on average on Tuesdays and Wednesdays, as both business and leisure travel slow during the middle of the week. Conversely, weekends can be a bad option due to high demand for the tickets. And the prices for tickets on Fridays and Saturdays can be expensive and must be avoided if you are looking for a cheaper option.
But you cannot ignore the importance of the booking day (best day of the week to book a flight) completely. There are some indications that show booking a flight early in the week often gets a cheaper deal. Tuesday is the best day to book a flight and can result in lower fare prices than later in the week when demand picks up on the weekend. However, it may not be true all the time, especially for international flights where prices do not fluctuate higher within weeks.
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What Is The Best Time To Book A Flight To Popular Destinations?
The best time to book international flights shifts based on the destination. It is possible that a time ideal for one destination can be worse for another. Therefore, it is essential to understand the destination-specific best time to travel.

Look at the following destination and the best time to book flight tickets to visit these places:
London
When flying to London, try to reserve 4-5 months in advance. There’s year-round demand, and prices remain fairly consistent throughout the year, except for the last month when last-minute highs are in effect in London. The best time to book flights to London is spring for summer break or vice versa to get the best deals.
Hawaii
With a leisurely pace and excellent seasonal peaks, Hawaii is a route that’s on its own time. Tourist demand on the mainland is higher during winter (December to March) and summer school holidays, and the best time to book flights to Hawaii is 5 to 7 months ahead. Outside of these times, you will have more flexibility and will see a significant drop in prices.
Japan
If traveling to Japan, try to avoid flying during cherry blossom season (March through April) or autumn foliage season (October through November), as both are busy times. It is best to make a reservation for these windows 5-6 months in advance. In between these busy periods, it is generally possible to find competitive international fares for 3 to 4 months ahead.
Best Time to Book International Flights for Major Festivals and Holidays
Think of celebrating Christmas in Finland or Thanksgiving in London. Sounds magical, but festival seasons are rarely the best time to book flights, as the ticket prices are highly volatile in nature.
The following is an explanation of when to plan to get the cheapest flight tickets in the festive season:
Christmas (and the wider Xmas travel season)
The best time to book Christmas flights is 5-7 months ahead, usually by the middle of summer. Christmas is one of the busiest times to travel internationally, and prices for Christmas and the rest of the Xmas travel window increase steadily starting in September. Waiting too long for the tickets can cause a little inconvenience. October and November are the times when tickets get expensive, or passengers may even have to take connecting flights due to the unavailability of direct flights.
Thanksgiving
It’s never too early to plan your perfect Thanksgiving party. Make your celebration fun and affordable by making the plan at the right time. The best time to book Thanksgiving flights for an international destination is 4 to 6 months before the holiday. Tickets are in high demand for Thanksgiving week, and you may have to pay a higher price if you wait until the last minute.
New Year’s Eve
New Year’s travel is very similar to Christmas demand, but prices continue to be pushed high up into January. Around 5 to 7 months out, much like Christmas time, is the best window for locking in international fares for the New Year, as those that are booking both holidays in one go tend to pay up quicker as they get closer to the holiday season.
Tips to Find Cheap International Flights
The following practical tips are related to the above timing patterns:
- Search in a private (incognito) window: This prevents the possibility of price hikes related to multiple searches by a single browser session.
- Monitor fares for several weeks before booking: The best time of day to book flights will depend on the flight, and by watching the price movement, you can get a good idea of whether the price is a good deal or simply average.
- Be flexible when planning travel dates: Shifting your travel a day or two can result in lower airfare. For instance, if you book flight tickets for Monday instead of Friday or Saturday, it increases your chance of getting cheaper deals.
- Book at the Sweet Spot: Airlines release international tickets 11 months before departure, but too early will not get you the cheapest deals. And waiting until the last minute is often risky and costs you an expensive ticket. The best time to book a flight falls between 3 and 7 months before departure.
- Search early in the week: Web searches on Tuesday and Wednesday tend to be recent price adjustments, before the weekend, when fares tend to rise again.
- Avoid the final three weeks: The best time to book flights in advance. Don’t book in the last three weeks before departure, as this is the time when last-minute pricing tiers are generally in effect.
- Pay attention to layover-heavy itineraries: Be mindful of itineraries that are layover-intensive when performing a search. Sometimes they are even cheaper just because the airline is looking to fill in the connecting time, and they may be a good option when you can find this date and route exactly when you want to book the flights.
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Conclusion
Although it may seem random, flight pricing for international routes isn’t. Airlines react to the predictable pattern of demand that is related to the day of the week, time of day, season, and distance from a major holiday. There are ways to consistently find better international fares; they include booking into the advance window for the particular destination, booking mid-week flights, and being aware of the price trends instead of booking on impulse. The best day and time to book flights will always be slightly different depending on the route, but the overall approach is clear; having a bit of “timing” awareness is a great way to get a better deal on a ticket.
FAQs
The prices of the flight tickets are determined based on the supply and demand. Midweeks typically offer lower fares, especially Tuesday and Wednesday. However, you may not find a cheap deal on every Tuesday; it completely depends on the demand.
The lowest fares for the flight tickets are available between 3 and 6 months before departure of an international flights. For domestic flights, search within 1 to 3 months before flight departure to get the cheapest flight deals.
No, the algorithms of the airlines are designed to increase the price of the flight tickets as the date of departure approaches due to limited seats. However, sometimes an airline may offer tickets at a discounted rate closer to the departure date if tickets remain unsold.
It is hard to predict the best day to book flight tickets, as airlines use dynamic pricing. However, midweeks can be cheaper due to fewer demands for the tickets.
No, flight ticket prices do not drop automatically, and you may not be able to find a good deal every Tuesday. It depends on the demand for the tickets. According to the data, the airline operates with fewer passengers on Tuesday, which could lead to lower prices.
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