$343 Cheap American Airlines flights Boston (BOS) to London (LHR)

Make use of the “Price (lowest to highest)” filter on Expedia to look for cheap American Airlines return flights from $469 from BOS to LHR. Affordable one-way tickets from $343 are also on offer.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Browse for return or one-way flights to London in January or February. You could find cheaper fares with American Airlines during these off-peak times.

Start your search for American Airlines flights from BOS to LHR about one month before you want to leave. The most affordable time to book an international flight is generally 18 to 29 days ahead of your travel date when you can save 17% versus booking four to five months in advance. No matter your fare class and itinerary, the best day to book international airfare is usually Sunday. Friday can be the most expensive. Passengers who book on a Sunday can save 17% on average compared to those who book on a Friday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

American Airlines has direct flights from Logan Intl. Airport (BOS) to Heathrow Airport (LHR), with 3 departures every week. Simply select the “Nonstop” and “Airline” filters during your search on Expedia to see all direct American Airlines flights to LHR.

From takeoff to arrival, a nonstop American Airlines flight from Logan Intl. Airport (BOS) to Heathrow Airport (LHR) typically takes 6h 30m.

The earliest American Airlines flight from BOS to LHR departs at 8:20PM UTC-5, arriving at 7:50AM UTC+0. If you’d like to head off later, the last American Airlines flight leaves BOS at 8:20PM UTC-5 and lands at LHR at 7:50AM UTC+0. Flying before noon is often a good option as morning and mid-morning flights tend to experience fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Board an American Airlines flight from Logan Intl. Airport (BOS) to London, and you’ll likely touch down at Heathrow Airport (LHR). This is the airline’s primary hub in this destination.

For the Logan Intl. Airport (BOS) to Heathrow Airport (LHR) route, American Airlines typically uses Boeing 787-10 and Boeing 787-9 planes. Don’t forget that last-minute changes are possible for operational needs, meaning your flight could be on another aircraft.

Changes are generally free within 24 hours of making a booking, but your airline may charge you after that. For more information about modifying your flights, go to your “Trips,” select your flight and click on “Manage Booking.” If you want the freedom to make changes without additional costs, tick the “No cancel fee” or “Changes included” filter when organizing your trip.