Unfortunately, there are no difficult rules that apply whenever the cheapest day to book a flight. With so many factors lying on the cost of a flight, it is difficult to know if the price will range from an hour to the next day in a month or year.
That being said, there are several recognizable patterns when making the airfare sacrifice over a timeline that is long enough, and there are several studies designed to reveal the cheapest days of the week to book flights. In particular, Expedia’s 2025 Air Travel Hacking Report used real flight data to help consumers determine the most affordable times to book airfares and fly friendly air in the US or overseas.
If you want Save airfares for your next trip Also, read when to book or the day of the week to fly. Please read the details.
Cheapest days to book flights
The lowest airfare payment dates vary weekly, but Expedia’s report reveals that consumers booking airfares on Sunday instead of Monday or Friday tend to save around 6% on domestic flights and 17% on international flights. Expedia also points out that Sunday was the cheapest day to book flights in 2021, 2022, 2023 and 2024, but savings rates are changing year by year.
The report used data edited by Expedia. Airline reporting companywith information on 12 billion passenger flights per year, run by over 480 airlines in over 235 countries.
According to Expedia, if you want to save more, you should save an average of 25% to book domestic flights at least one month in advance, and at least one month in advance.
On the other hand, booking international airfares 18-29 days before departure tends to get the lowest price rather than booking more than three months ahead. However, research data suggest that this could be a “high-risk, high-reward strategy.” This indicates that waiting too long can lead to you being faced with a sold-out flight with optimal routing and layovers, a higher price, or a flight.
Most affordable days to travel
Booking a flight on a Sunday will help you get the lowest price, but flying on a Saturday or Thursday may help you save on airfares. Savings could be 17% for domestic flights and 15% for international travel.
Interestingly, the most expensive day to fly is every Sunday, whether you travel near your home or just piers to a far-off international destination.
Cheapest month for travel
Data from Expedia also shows that March was the most expensive month to travel across the board, and February continued. If you want to earn savings, consider traveling in August instead.
Savings could reach 12% in domestic airfares when travelers fly in August rather than February. For international travel, your savings in August are up to 7% compared to the fares in March.
What factors affect flight prices?
A variety of factors can affect flight costs, but most of them are summarised in supply and demand. for example, Airfare costs During the off-peak season, all destinations tend to be cheaper, but prices tend to rise during peak travel times, such as on holidays and summer, when demand is high.
Fuel costs can affect flight costs along with airline labor, labor shortages and other underlying issues. Ultimately, airlines use complex algorithms to determine fare pricing, and these factors are only part of the equation.
Tips for finding cheap flights
To get the best deals in the country International Airfares In 2025, we recommend combining some smart strategies that affect both bookings and flying.
- Book your airfare on Sunday. As mentioned before, booking airfares on Sundays is cheaper than other days of the week, especially on Monday and Friday.
- I’m willing to fly mid-week. Thursdays and Saturdays tend to be the cheapest days to fly, so you can check if you can tweak your travel plans and then head out recently to get home.
- Consider multiple airports. Kyle Marz’s Dolph Light Club He also says that departure airports and routes should be flexible. “If you expand your search to nearby airports, you can definitely see a price difference for flights to the same destination,” he says. “And also, by jumping into an alternative airport, you maximize your savings, but help you reach the same destination.”
- Fly one-way flights instead of round trips. “This is a great strategy, especially if you travel to places like Europe that are very inexpensive within Europe, but generally more expensive than you get there,” advises Martz. “Find the cheapest place to get there and then find a quick flight to your final destination will certainly save you on the overall flight cost of your trip.”
- Set price alerts. Use tools like Hopper app Set a price alert to notify you when the airfare price drops significantly or when it says it’s the cheapest day to book. Expedia offers price drop protection for the app for a fee or free of charge if you are a major member of Gold or Platinum Tier 1. If you book a flight that will lower your price later and have price reduction protection, Expedia will refund the difference.
- Avoid peak travel times. Not only does travelling off-peak help you get significant airfare and hotel savings, but Expedia data shows that off-peak trips generally have fewer cancellations and delays. Booking an early morning flight instead of an afternoon or evening flight is less likely to show delays.
- Use a companion pass. Companion Pass It ranges from airlines to airlines, but you can earn discounts with your Flying Fan Tickets. Some of the best companion passes are offered by Southwest AirlinesAlaska Airlines and British Airways.
- Earn airline miles. Consider signing up for the Frequent Flyer Program, where you can book airfares with the miles you earn for flights and other activities. You may be able to earn miles to shop through the airline’s shopping portal or sign up for the airline’s dining program.
- Sign up for an airline credit card. You can also start building miles for airfares with co-brands Airline credit cards or Travel credit cards. Martz says this is a great strategy even if you’re not a frequent flyer. “There are amazing limited time offers with travel cards throughout the year, which can save a ton of flights and also cover the cost of a flight or hotel stay,” he says.
Conclusion
The cheapest days to book may vary from week to week, and the same applies to travel days. However, a complete look at the data shows that some travel days tend to be cheaper at the end of booking and at the travel edge. At least in most cases.
Arming this information is one of the best ways to save on airfares in the long term, but that’s not the only way. Combine familiar shopping with huge stashes Airline milesyou can reduce your airfare payments all year round.
