Q: How much does it cost for a return flight from Boston to London Heathrow Airport?

Airfare is below average for this route at the moment. Boston to London Heathrow Airport flights typically cost between £382 and £556 in March. The cheapest return flight price found within the last 3 days was £358 on Multiple Airlines (1 Mar-8 Mar).

Question 1

How much does it cost for a return flight from Boston to London Heathrow Airport?

Accepted Answer

Airfare is below average for this route at the moment.Boston to London Heathrow Airport flights typically cost between £382 and £556 in March.
The cheapest return flight price found within the last 3 days was £358 on Multiple Airlines (1 Mar-8 Mar).

Question 2

What’s the cheapest stopover airport for flights from Boston to London Heathrow Airport?

Accepted Answer

Shannon (SNN) is the most affordable one-stop option, with an average return flight price of £345.

Question 3

Which airport typically offers the quickest stopover for flights from Boston to London Heathrow Airport?

Accepted Answer

Flights via Frankfurt am Main (FRA) offer the fastest connection on this route, with an average stopover time of 1h 15m.

Question 4

What’s the top stopover airport for flights from Boston to London Heathrow Airport?

Accepted Answer

Reykjavik (KEF) – chosen by Cheapflights users on 62% of one-stop itineraries from Boston to London Heathrow Airport on Cheapflights.

Question 5

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

Accepted Answer

Over the past year, Virgin Atlantic have had the lowest number of delays on this route, with just 7% of flights being delayed.

Question 6

How often are flights from Boston to London delayed?

Accepted Answer

About 11% of weekly flights between Boston and London have experienced delays in the past year, with the average delay time being 142 minutes.

Question 7

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

Accepted Answer

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

Question 8

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

Accepted Answer

Wednesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Question 9

What’s the fastest stopover option from Boston to London Heathrow Airport?

Accepted Answer

Flights via Shannon (SNN) have the shortest average one-way travel time for one-stop routes: 8h 50m.

Question 10

How long is the flight from Boston to London Heathrow Airport?

Accepted Answer

A quick flight from Boston to London Heathrow Airport can take about 6h 40m. United Airlines provides one of the quickest options available for as low as £381. The distance between Boston and London Heathrow Airport is about 3254 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

Question 11

What are the cheapest airlines flying from Boston to London Heathrow Airport round-trip?

Accepted Answer

JetBlue, at £347, was found to be the cheapest airline from Boston to London Heathrow Airport.Alternate airlines flying return to your destination include Finnair and KLM. JetBlue is 24% cheaper than the average price of flights available within the next 90 days to this destination.

Question 12

What are the cheapest airlines to fly from Boston to London Heathrow Airport one-way?

Accepted Answer

For one-way options, check prices for JetBlue. According to our data, you can fly for as low as £94. Users have also found prices from £121 and £139 on Air France and Virgin Atlantic, respectively.

Question 13

How far ahead should I book a flight from Boston to London Heathrow Airport?

Accepted Answer

The price you pay for your flight from Boston to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 69 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Question 14

What is the cheapest month to book a flight from Boston to London Heathrow Airport?

Accepted Answer

Currently, October is the cheapest month in which you can book a flight from Boston to London Heathrow Airport (average of £318). Flying from Boston to London Heathrow Airport in June is currently the most expensive (average of £434). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 15

Weekly flight availability from Boston to London Heathrow Airport

Accepted Answer

The most flights from BOS to LHR are scheduled on a Saturday (36 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (22 on average).

Question 16

E

Accepted Answer

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Question 17

E

Accepted Answer

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Question 18

What are the cheapest flights from Boston to London Heathrow Airport?

Accepted Answer

Looking for the cheapest flight from Boston to London Heathrow Airport? While on average our users pay £772, our data indicates the cheapest price to be £142. The most popular route (Boston Logan Intl - London Heathrow), is priced around £280.

Question 19

What are the most reliable airlines from Boston to London Heathrow Airport?

Accepted Answer

The top 3 most reliable airlines when flying from Boston to London Heathrow Airport are Malaysia Airlines (94%), Gulf Air (88%) and American Airlines (84%).

Question 20

What are the most popular airlines that fly from Boston to London Heathrow Airport?

Accepted Answer

Before booking your flight from Boston to London Heathrow Airport check out the most popular airlines for this route: Virgin Atlantic, British Airways or Iberia.

Question 21

What is the cheapest time of day to fly from BOS to LHR?

Accepted Answer

When flying from Boston to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Question 22

What airport do you fly from for flights from Boston to London Heathrow?

Accepted Answer

Located just 2.6 mi from the city center, Boston Logan Intl is the airport most travelers will use when flying to London Heathrow from Boston. Booking flights from Logan Intl (BOS) to London Heathrow should be relatively easy as there are 29 daily outbound flights to London Heathrow from 8 different airlines.

Question 23

Can I find deals for flights from Boston to Heathrow that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Boston to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 24

How can I find direct flights from Boston to Heathrow?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Heathrow.

Question 25

Can I find deals for business class flights from Boston to Heathrow?

Accepted Answer

Yes. Cheapflights offers flight deals from Boston to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 26

How does Cheapflights help users find flights from Boston to Heathrow?

Accepted Answer

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Boston to Heathrow. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Question 27

Why should you use Cheapflights to find cheap flight tickets from Boston to Heathrow?

Accepted Answer

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Boston.

Question 28

Can Cheapflights find flights from Boston to Heathrow with no change fees?

Accepted Answer

Users can book flights with no change fees policies with our dedicated filters. Book flights from Boston to Heathrow flexibly with Cheapflights today.

Question 29

Can Cheapflights notify me if prices for flights from Boston to Heathrow become cheaper?

Accepted Answer

Not ready to book yet? You can track prices for flights from Boston to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

Round-trip from	£358
One-way from	£163
Popular in	June
Cheapest in	October
Average price	£448
Good round-trip deal	£363 or less
Good one-way deal	£165 or less

Airline	Cheapest	Average	Flexibility	On-time
JetBlue	Cheapest£347	Average£600	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
Finnair	Cheapest£350	Average£569	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
KLM	Cheapest£352	Average£554	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Virgin Atlantic	Cheapest£355	Average£434	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Iberia	Cheapest£360	Average£559	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
British Airways	Cheapest£368	Average£488	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Delta	Cheapest£377	Average£517	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Air France	Cheapest£382	Average£525	FlexibilityNo cancel fee	On-time77%	Search Air France flights

Cheap flights from Boston to London Heathrow Airport from £163

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/3. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Boston to Heathrow

Cheapest flights from Boston to HeathrowExplore the most affordable flight options available from Boston to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 February 2026.

Explore the most affordable flight options available from Boston to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 February 2026.

Best flights from Boston to HeathrowDiscover carefully curated flight deals from Boston to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 February 2026.

Discover carefully curated flight deals from Boston to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 February 2026.

Direct flights from Boston to HeathrowExplore direct flight options from Boston to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 2 February 2026.

Explore direct flight options from Boston to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 2 February 2026.

Last-minute flights from Boston to HeathrowDiscover last-minute flight deals from Boston to Heathrow. Data last updated 2 February 2026 and is based on user searches.

Discover last-minute flight deals from Boston to Heathrow. Data last updated 2 February 2026 and is based on user searches.

One-way flights from Boston to HeathrowSearch for one-way flight options from Boston to Heathrow. Find affordable one-way fares based on user searches. Data last updated 2 February 2026.

Search for one-way flight options from Boston to Heathrow. Find affordable one-way fares based on user searches. Data last updated 2 February 2026.

Find flight deals from Boston to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

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

Best time to book a flight from Boston to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Boston with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Boston to London Heathrow Airport

How far ahead should I book a flight from Boston to London Heathrow Airport?

What is the cheapest month to book a flight from Boston to London Heathrow Airport?

What is the cheapest time of day to fly from BOS to LHR?

How much does it cost for a return flight from Boston to London Heathrow Airport?

Weekly flight availability from Boston to London Heathrow Airport

How often are flights from Boston to London delayed?

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

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

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

What’s the top stopover airport for flights from Boston to London Heathrow Airport?

What’s the cheapest stopover airport for flights from Boston to London Heathrow Airport?

What’s the fastest stopover option from Boston to London Heathrow Airport?

Which airport typically offers the quickest stopover for flights from Boston to London Heathrow Airport?

Reviews of airlines servicing Heathrow

Read reviews from past customers who have flown with KLM, Virgin Atlantic, andAir France from Boston to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Boston to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Boston to London Heathrow?

How long is the flight from Boston to London Heathrow Airport?

What are the cheapest airlines flying from Boston to London Heathrow Airport round-trip?

What are the cheapest airlines to fly from Boston to London Heathrow Airport one-way?

What are the most reliable airlines from Boston to London Heathrow Airport?

What are the cheapest flights from Boston to London Heathrow Airport?

Can I find deals for flights from Boston to Heathrow that include hotel bookings?

How can I find direct flights from Boston to Heathrow?

Can I find deals for business class flights from Boston to Heathrow?

What is the cheapest month to book a flight from Boston to London Heathrow Airport?

Travelling to a place near London Heathrow Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Boston to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Top 8 airlines flying from Boston to Heathrow

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Boston to Heathrow?

Why should you use Cheapflights to find cheap flight tickets from Boston to Heathrow?

Can Cheapflights find flights from Boston to Heathrow with no change fees?

Can Cheapflights notify me if prices for flights from Boston to Heathrow become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Boston to Heathrow
Explore the most affordable flight options available from Boston to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 February 2026.

Best flights from Boston to Heathrow
Discover carefully curated flight deals from Boston to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 2 February 2026.

Direct flights from Boston to Heathrow
Explore direct flight options from Boston to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 2 February 2026.

Last-minute flights from Boston to Heathrow
Discover last-minute flight deals from Boston to Heathrow. Data last updated 2 February 2026 and is based on user searches.

One-way flights from Boston to Heathrow
Search for one-way flight options from Boston to Heathrow. Find affordable one-way fares based on user searches. Data last updated 2 February 2026.