Cheap flights from Massachusetts to London from £166

The cheapest month to fly to London from Massachusetts is in October. Flight prices, which tend to average around £382, are often lower during this time because this is during the off-season. The month of January is another great option to travel to London, with average flight prices from Massachusetts averaging around £386.

Our data shows that Tuesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £422. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Massachusetts to London for around £546.

The cheapest time of day to fly to London is in the afternoon when flights can be purchased for as low as £434. Flights in the morning are often more expensive, with an average ticket price of £533.

Fly from Boston Logan Intl to London Heathrow for the best Massachusetts - London flight prices

You are more likely to see cheaper flights to London from Massachusetts when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £461 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Massachusetts for as low as £445 on momondo.

There are 4 cabin classes available to choose from on Massachusetts to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

KLM, Delta, and JetBlue are the most popular carriers operating from Massachusetts to London

British Airways, Virgin Atlantic and Iberia are the top three most popular airlines that fly to London from Massachusetts according to our data. British Airways is the first choice among our users, with 40% of people opting to fly with this airline when travelling to London. Keep in mind that there are 9 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

As of February 2026, 27 flights take off from Massachusetts and land in London each day. The most common flight departure time for this route is 19:00, with 82% of daily flights taking off in the evening.

190 flights are operational weekly from Massachusetts to London as of February 2026. The most popular departure day for this route is Wed, with 17% of flights per week taking off on this day.