Cheap flights from Boston to London from $269

In general, March is the cheapest month to fly from Boston to London Gatwick Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $484. If you are unable to visit London Gatwick Airport during the month of March, then departing from Boston during the month February is also very affordable. Most momondo users find prices during this month for around $514.

The cheapest day to depart from Boston to London Gatwick Airport is on a Saturday when prices can be found for as low as $496. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to London Gatwick Airport on Monday is $621.

Flying to London Gatwick Airport from Boston in the evening is the least expensive time of day to depart. momondo users have found prices as low as $546 when looking at flights departing in the evening. In the afternoon is when there is more demand to fly to London Gatwick Airport, so prices are often more expensive at around $990 per ticket.

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

You are more likely to see cheaper flights to London Gatwick Airport from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to London Gatwick Airport for around $591 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Gatwick Airport from Boston for as low as $549 on momondo.

No. A direct flight is the cheapest option for a flight between Boston to London Gatwick Airport.

As of May 2026, prices for Boston to London Gatwick Airport flights are approximately 22% cheaper when compared to flights at the same time last year.

LEVEL, JetBlue, and SWISS are the most popular carriers operating from Boston Logan Intl to London Gatwick

JetBlue, Icelandair and British Airways are the top three most popular airlines that fly to London Gatwick Airport from Boston according to our data. JetBlue is the first choice among our users, with 64% of people opting to fly with this airline when traveling to London Gatwick Airport. Keep in mind that there are 3 different airlines that fly to London Gatwick Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 15% of flights between Boston and London have experienced a delay on any given week. The average delay length over the past 12 months has been 108 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, JetBlue have had the least number of delays on this route over the last 12 months; with about 13% of their flights experiencing any sort of delay.

Reykjavik (KEF) was the most common stop: 77% of momondo users choosing 1-stop flights on this route connected there.

Flights via Barcelona (BCN) offer the lowest average round-trip price of $502.

Flights connecting via Reykjavik (KEF) have the shortest average one-way travel time: 10h 13m.

Reykjavik (KEF) has the shortest average layover time for this route: 1h 42m.