Question 1

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

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

Question 2

What is the cheapest London to Boston Logan Intl flight route?

Accepted Answer

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

Question 3

Which airline has the best punctuality record on London to Boston flights?

Accepted Answer

According to our data, Virgin Atlantic have had the least number of delays on this route over the last 12 months; with about 4% of their flights experiencing any sort of delay.

Question 4

How many flights depart from London to Boston on average per week?

Accepted Answer

206 flights are operational weekly from London to Boston as of January 2026. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.

Question 5

How far in advance should I book a flight to Boston?

Accepted Answer

You are more likely to see cheaper flights to Boston from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $627 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from London for as low as $566 on momondo.

Question 6

What is the most punctual flight time for London to Boston flights?

Accepted Answer

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

Question 7

Which layover airport has the shortest travel time from London to Boston?

Accepted Answer

Flights connecting via Reykjavik (KEF) have the shortest average one-way travel time: 10h 55m.

Question 8

Which airport is the most popular layover for flights between London and Boston?

Accepted Answer

Reykjavik (KEF) was the most common stop: 71% of momondo users choosing 1-stop flights on this route connected there.

Question 9

Which layover airport offers the lowest fares from London to Boston?

Accepted Answer

Flights via Lisbon (LIS) offer the lowest average round-trip price of $460.

Question 10

What cabin class options are available on London to Boston Logan Intl flights?

Accepted Answer

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

Question 11

Can stopping save me money on London to Boston flights?

Accepted Answer

You could potentially save up to 38% on your flight if you consider stops on a London to Boston flight.

Question 12

What is the typical price of a round-trip flight between London and Boston?

Accepted Answer

Prices are currently typical for flights on this route.Typical prices usually range from $474 to $669.
The lowest price recently found on this route was $477.

Question 13

What is the cheapest month to fly to Boston?

Accepted Answer

In general, September is the cheapest month to fly from London to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $525. If you aren’t able to travel during the month of September, then book flights to Boston from London during February instead. Flights to Boston in February, while not as cheap as those in September, still average around $533.

Question 14

What airlines fly to Boston?

Accepted Answer

British Airways, Delta and American Airlines are the top three most popular airlines that fly to Boston from London according to our data. British Airways is the first choice among our users, with 57% of people opting to fly with this airline when traveling to Boston. Keep in mind that there are 9 different airlines that fly to Boston on a routine basis, so you have a few additional options to choose from.

Question 15

How often are flights from London to Boston delayed?

Accepted Answer

Historically, on average around 8% of flights between London and Boston have experienced a delay on any given week. The average delay length over the past 12 months has been 155 minutes.

Question 16

Which layover airport has the shortest connection time from London to Boston?

Accepted Answer

Reykjavik (KEF) has the shortest average layover time for this route: 1h 46m.

Question 17

How many flights depart from London to Boston on average per day?

Accepted Answer

As of January 2026, there are 29 flights per day flying from London to Boston. The most common time of day flights depart is 1:00PM, with 49% of flights taking off in the afternoon.

Question 18

How have London to Boston flight prices changed over time?

Accepted Answer

As of January 2026, prices for London to Boston flights are approximately 102% more expensive when compared to flights at the same time last year.

Question 19

What is the cheapest day to depart on your flight to Boston?

Accepted Answer

The cheapest day to depart from London to Boston is on a Tuesday when prices can be found for as low as $695. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Saturday is $783.

Question 20

What is the cheapest time of day to depart on your flight to Boston?

Accepted Answer

According to our data, the cheapest time of day to fly to Boston is in the afternoon. momondo users have found flights departing from London to Boston in the afternoon for as low as $703. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the evening is when there is more demand to fly to Boston, so prices are often more expensive at around $798 per ticket.

Question 21

What is the cheapest airline that flies from London to Boston Logan Intl?

Accepted Answer

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

Question 22

When did momondo last update prices for flights from London to Boston Logan Intl Airport?

Accepted Answer

Prices for flights from London to Boston Logan Intl Airport are updated daily.

Question 23

How many operators does momondo search for flights from London to Boston Logan Intl Airport?

Accepted Answer

As of January 2026, there are 9 operators available to choose from for flights from London to Boston Logan Intl Airport.

Question 24

How old do you have to be to fly from London to Boston Logan Intl Airport?

Accepted Answer

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Boston Logan Intl Airport.

Question 25

What documentation or ID do you need to fly to Boston Logan Intl Airport?

Accepted Answer

The travel and health documents required for your trip to Boston Logan Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Boston Logan Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best Price Found	$474
Fastest flight time	7h 20m
Direct flights	Every day
Airports in Boston	1 airport

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom $401	Free Cancellation	Rating 7.1 606 reviews	Search Icelandair flights
Finnair	PriceFrom $452	Free Cancellation	Rating 7.6 1,356 reviews	Search Finnair flights
JetBlue	PriceFrom $456	Free Cancellation	Rating 7.2 2,892 reviews	Search JetBlue flights
British Airways	PriceFrom $465	Free Cancellation	Rating 6.7 7,705 reviews	Search British Airways flights
Delta	PriceFrom $481	Free Cancellation	Rating 7.9 8,128 reviews	Search Delta flights
American Airlines	PriceFrom $486	Free Cancellation	Rating 7.2 11,205 reviews	Search American Airlines flights
Iberia	PriceFrom $539	Free Cancellation	Rating 7.0 3,099 reviews	Search Iberia flights
Air France	PriceFrom $548	Free Cancellation	Rating 7.4 1,528 reviews	Search Air France flights
Virgin Atlantic	PriceFrom $551	Free Cancellation	Rating 7.5 678 reviews	Search Virgin Atlantic flights

Cheap flights from London to Boston from $392

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Boston departing on 3/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from London to Boston

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

TAP AIR PORTUGAL flights from London to Boston

Our best TAP AIR PORTUGAL deals on London to Boston flight tickets

Air Canada flights from London to Boston

Our best Air Canada deals on London to Boston flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from London to Boston that are best for you.

See travel insights to Boston from

How to get the cheapest flight ticket from London to Boston