
Popular airlines from Logan International Airport (BOS) to Gatwick Airport (LGW)
- TAP Portugal
TAP Portugal
- Icelandair
Icelandair
- Iberia
Iberia
- JetBlue Airways
JetBlue Airways
- Condor
Condor
- Turkish Airlines
Turkish Airlines
- British Airways
British Airways
- Be in the knowGet alerts if flight prices drop or rise*
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Cheap Flights from Boston to London (BOS-LGW)
Prices were available within the past 7 days and start at $223 for one-way flights and $396 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.










Find the cheapest month to fly from Boston (BOS) to London (LGW)
October is typically the cheapest month to fly
Alternative airports near London
Prices were available within the past 7 days. Prices and availability are subject to change.
Origin airport | Logan Intl. |
|---|---|
Destination airport | Gatwick |
Airlines serving | Air Europa, Air France, British Airways, Condor, Iberia, Icelandair, JetBlue Airways, SATA International-Azores Airlines S.A., Swiss International Air Lines, TAP Portugal, Turkish Airlines |
Roundtrip price | $396 |
Distance | 3275 mi |
Boston to London Flights
The cheapest times to fly from Boston to London
On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boston to London are during the month of April. You can find some of the cheapest flights from Boston to London with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Boston to London
Sunday is one of the best days to book for cheap flights from Boston to London: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.
How to find cheap round-trip tickets from Boston to London
Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boston to London in 2026. You can also book with separate airlines for your outbound and return journeys, from $223 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.
Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boston to London flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.