What are the cheapest days of the week to fly to London?

International flights are usually cheaper on weekdays, while you will usually find the airfare is cheaper for internal flights if you book on a Tuesday, Wednesday or Saturday. The most expensive days to book flights from the US are usually Fridays or Sundays.



For travel to London in 2026, Tuesday and Wednesday remain consistently the cheapest days to fly. These midweek days see lower demand from both business travelers, who typically fly at the start or end of the work week, and weekend tourists. Conversely, Fridays and Sundays are usually the most expensive days due to high leisure demand. Booking your flight for a midweek departure can often save you between 10% and 20% compared to a weekend flight. To find the absolute lowest fares, experts recommend booking 3 to 6 months in advance for international routes and aiming for the "off-season" months of January, February, or November. Additionally, flying into secondary airports like Gatwick (LGW) or Stansted (STN) rather than the primary Heathrow (LHR) hub can sometimes yield further savings, especially if you are using budget carriers. Using price tracking tools to monitor these specific midweek windows is the most effective way to secure a deal for your London adventure.

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The Expedia analysis reveals that Thursday is the best day to travel abroad if you're pinching pennies, with international airfares 14% less expensive on average when compared to flights that leave on Sundays.

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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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Best Time To Book International Flights According to a study conducted by Expedia, data shows that you want to book at least six months in advance for international travel. The study found you'll save an average of 10% by booking six months in advance instead of two months or less.

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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.

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Time your booking right “For international flights — [it's] four to 10 months.” If you're traveling during an off-peak season, you're going to want to look at airfares one to three months in advance for domestic flights, and two to eight months ahead of the flight for international trips.

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Wednesday and Thursday are also relatively cheap days to fly into London, but Friday is predictably the most expensive day to fly, and one of the busiest days for arrivals into London.

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The most affordable time to visit London will almost always be the winter months of January and February, as the holiday season is over and there's not a whole lot going on.

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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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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 our experience, while fantastic deals can pop up at any time, the best time to book a flight (what we call the Goldilocks Window) is 1–3 months ahead for domestic travel and 2–8 months ahead for international travel—unless your trip is around a popular holiday or peak travel time, or you have very specific travel ...

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A well-worn travel legend says that Tuesday is the best (and cheapest) day to book your flight. However, here in the UK at least, it would seem that the myth is exactly that – just a myth. Holiday booking site Opodo says that Sunday is the cheapest day for buying a plane ticket.

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The fastest recorded passenger flight from the US to England took just 4 hours and 56 minutes between New York and London.

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While you can see most of the main sights in London in one day or two days, for first-time visitors, I highly recommend spending at least 3-4 days in London. This should give you sufficient time to get acquainted with the city, see the main landmarks, and visit a few of the most popular tourist attractions in London.

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Try to sleep on the flight Even if for only a few hours, do your best to find a way to experience real sleep. Real sleep where the hours invisibly whisk by and you wake up feeling somewhat, if not quite a bit, rested and energized.

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You can depart from cities including: New York, Boston, Chicago, San Francisco, Los Angeles and Miami, Orlando, and Denver all under $400 round trip. That's a pretty hot deal…

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Just like us after a night of good sleep, airline circulation is freshest in the morning. If your flight departs in the morning, you are less likely to be affected by delays that stack up during the day and push back or cancel departure times.

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resulting in lower prices and the cheapest day of the week to fly. So, you guessed it, that means the most expensive days to book flights are those days when most travelers are heading out – or coming home. That means flying Thursdays, Fridays, Sundays, and Mondays will typically be more expensive.

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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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