Question 1

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

Accepted Answer

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

Question 2

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

Accepted Answer

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

Question 3

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

Accepted Answer

The cheapest day to depart from London Heathrow Airport to Boston is on a Thursday when prices can be found for as low as $689. 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 $778.

Question 4

What is the cheapest month to fly to Boston?

Accepted Answer

In general, February is the cheapest month to fly from London Heathrow Airport to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $538. If you aren’t able to travel during the month of February, then book flights to Boston from London Heathrow Airport during September instead. Flights to Boston in September, while not as cheap as those in February, still average around $540.

Question 5

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

Accepted Answer

Flights via Reykjavik (KEF) offer the lowest average round-trip price of $478.

Question 6

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

Accepted Answer

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

Question 7

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

Accepted Answer

Reykjavik (KEF) was the most common stop: 67% of momondo users choosing 1-stop flights on this route connected there.

Question 8

Can stopping save me money on London Heathrow Airport to Boston flights?

Accepted Answer

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

Question 9

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. Friday has historically seen more delays on average compared to the rest of the week.

Question 10

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 158 minutes.

Question 11

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

Accepted Answer

British Airways and JetBlue are the most popular carriers operating from London Heathrow to Boston Logan Intl

Question 12

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 5% of their flights experiencing any sort of delay.

Question 13

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

Accepted Answer

As of December 2025, there are 214 flights per week flying from London Heathrow Airport to Boston. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

Question 14

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

Accepted Answer

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

Question 15

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 Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $622 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from London Heathrow Airport for as low as $569 on momondo.

Question 16

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 Heathrow Airport to Boston in the afternoon for as low as $713. 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 $733 per ticket.

Question 17

How have London Heathrow Airport to Boston flight prices changed over time?

Accepted Answer

As of December 2025, prices for London Heathrow Airport to Boston flights are approximately 10% more expensive when compared to flights at the same time last year.

Question 18

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

Accepted Answer

30 flights are operational daily from London Heathrow Airport to Boston as of December 2025. The most popular departure time for this route is 1:00PM, with 48% of flights per day taking off in the afternoon.

Question 19

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 Heathrow Airport 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 20

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

Accepted Answer

There are 4 cabin classes available to choose from on London Heathrow 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 21

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

Accepted Answer

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

Question 22

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

Accepted Answer

As of December 2025, there are 9 operators available to choose from for flights from London Heathrow Airport to Boston Logan Intl Airport.

Question 23

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

Accepted Answer

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Boston Logan Intl Airport.

Question 24

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

Accepted Answer

The required travel and health documents for your Boston Logan Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Boston Logan Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best Price Found	$494
Fastest flight time	7h 25m
Direct flights	Every day
Airports in Boston	1 airport

Airline	Rating	Free Cancellation	Price
Finnair	PriceFrom $404	Free Cancellation	Rating 7.6 1,338 reviews	Search Finnair flights
Icelandair	PriceFrom $445	Free Cancellation	Rating 7.0 591 reviews	Search Icelandair flights
British Airways	PriceFrom $479	Free Cancellation	Rating 6.7 7,585 reviews	Search British Airways flights
Delta	PriceFrom $481	Free Cancellation	Rating 7.9 8,005 reviews	Search Delta flights
JetBlue	PriceFrom $483	Free Cancellation	Rating 7.2 2,897 reviews	Search JetBlue flights
American Airlines	PriceFrom $486	Free Cancellation	Rating 7.2 11,054 reviews	Search American Airlines flights
Iberia	PriceFrom $539	Free Cancellation	Rating 7.0 3,052 reviews	Search Iberia flights
Air France	PriceFrom $548	Free Cancellation	Rating 7.4 1,507 reviews	Search Air France flights
Virgin Atlantic	PriceFrom $551	Free Cancellation	Rating 7.5 675 reviews	Search Virgin Atlantic flights

Cheap flights from London Heathrow Airport to Boston from $431

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 Heathrow Airport to Boston departing on 3/15. 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 Heathrow Airport to Boston

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Iberia flights from London Heathrow Airport to Boston

Our best Iberia deals on London Heathrow Airport to Boston flight tickets

British Airways flights from London Heathrow Airport to Boston

Our best British Airways deals on London Heathrow Airport to Boston flight tickets

momondo Fare Finder

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

See travel insights to Boston from

How to get the cheapest flight ticket from London Heathrow Airport to Boston

What is the cheapest month to fly to Boston?

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

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

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

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

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

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

There are 4 cabin classes available to choose from on London Heathrow 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.

Can stopping save me money on London Heathrow Airport to Boston flights?

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

How have London Heathrow Airport to Boston flight prices changed over time?

As of December 2025, prices for London Heathrow Airport to Boston flights are approximately 10% more expensive when compared to flights at the same time last year.

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

British Airways and JetBlue are the most popular carriers operating from London Heathrow to Boston Logan Intl

What airlines fly to Boston?

How often are flights from London to Boston delayed?

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 158 minutes.

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

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

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

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

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

According to our data, Virgin Atlantic have had the least number of delays on this route over the last 12 months; with about 5% of their flights experiencing any sort of delay.

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

Reykjavik (KEF) was the most common stop: 67% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Reykjavik (KEF) offer the lowest average round-trip price of $478.

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

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

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

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

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

30 flights are operational daily from London Heathrow Airport to Boston as of December 2025. The most popular departure time for this route is 1:00PM, with 48% of flights per day taking off in the afternoon.

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

As of December 2025, there are 214 flights per week flying from London Heathrow Airport to Boston. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

When to book flights from London Heathrow Airport to Boston

Cheap London Heathrow Airport to Boston (LHR to BOS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Boston

Best Price Found

Fastest flight time

Direct flights

Airports in Boston

How far is London Heathrow to Boston Logan Intl by plane?

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

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

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

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

What is the most popular plane model from London Heathrow Airport to Boston?

What is the most popular airline from London Heathrow Airport to Boston?

Best airlines flying from London Heathrow Airport to Boston

Compare and see reviews for airlines that fly from London Heathrow Airport to Boston with momondo

Delta Flights From London Heathrow Airport to Boston

Finnair Flights From London Heathrow Airport to Boston

Traveling to a place near Boston?

Why use momondo?

Why should I use momondo to find a flight deal from London to Boston?

Can I find flights from London to Boston with flexible booking policies on momondo?