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Cheap flights from Boston to London Heathrow Airport from £166

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 25/3. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LHR
28 Mar — 4 Apr1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Boston Logan Intl to London Heathrow are usually found in January or October, booked 69 days in advance, depart on a Tuesday or Monday and return on a Thursday

Cheap flight deals from Boston to Heathrow

Enter your travel dates to find the best prices.

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 26 February 2026.

Tue 12/515:40
BOS
-
LHR
2 stops15h 10m
Multiple Airlines
Thu 14/508:55
LHR
-
BOS
2 stops16h 00m
Multiple Airlines
Deal found 25/2£359
Sat 2/520:50
BOS
-
LHR
1 stop10h 05m
Icelandair
Thu 21/513:05
LHR
-
BOS
1 stop10h 45m
Icelandair
Deal found 25/2£360
Mon 23/320:25
BOS
-
LHR
1 stop8h 50m
Aer Lingus
Mon 30/309:50
LHR
-
BOS
1 stop10h 50m
Aer Lingus
Deal found 22/2£361
Thu 7/520:50
BOS
-
LHR
1 stop10h 05m
Icelandair
Tue 26/521:25
LHR
-
BOS
1 stop29h 20m
Icelandair
Deal found 23/2£361
Sun 16/817:40
BOS
-
LHR
2 stops38h 15m
Scandinavian Airlines
Wed 19/806:40
LHR
-
BOS
1 stop13h 55m
Scandinavian Airlines
Deal found 25/2£362
Mon 16/320:25
BOS
-
LHR
1 stop8h 50m
Aer Lingus
Wed 25/310:00
LHR
-
BOS
1 stop11h 50m
Aer Lingus
Deal found 23/2£363
Tue 14/420:50
BOS
-
LHR
1 stop10h 05m
Icelandair
Wed 22/413:05
LHR
-
BOS
1 stop10h 45m
Icelandair
Deal found 23/2£364
Tue 17/320:25
BOS
-
LHR
1 stop8h 50m
Aer Lingus
Tue 31/309:50
LHR
-
BOS
1 stop10h 50m
Aer Lingus
Deal found 24/2£364
Mon 17/817:40
BOS
-
LHR
2 stops38h 15m
Scandinavian Airlines
Thu 20/806:40
LHR
-
BOS
1 stop13h 55m
Scandinavian Airlines
Deal found 24/2£365
Sun 12/420:50
BOS
-
LHR
1 stop18h 30m
Icelandair
Fri 17/421:25
LHR
-
BOS
1 stop29h 20m
Icelandair
Deal found 22/2£366
Sun 19/423:00
BOS
-
LHR
1 stop16h 20m
Icelandair
Wed 29/421:25
LHR
-
BOS
1 stop26h 25m
Icelandair
Deal found 25/2£367
Tue 24/219:15
BOS
-
LHR
Nonstop6h 45m
Iberia
Sat 28/211:25
LHR
-
BOS
1 stop13h 25m
Iberia
Deal found 23/2£367

Find flight deals from Boston to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 26 February 2026.

Round-trip from

£359

One-way from

£166

Popular in

June

Cheapest in

January

Average price

£428

Good round-trip deal

£376 or less

Good one-way deal

£224 or less
SWISS
  • SWISS
  • 12/5-14/5
  • 4 total stops
  • 31h 10m total
  • Boston to London
Search Deals
United Airlines
  • United Airlines
  • 25/3
  • 1 total stop
  • 21h 55m total
  • Boston to London
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£64 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to London Heathrow.
Search Deals
Price to beat on a one-way flight from Boston Logan Intl to London Heathrow.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Boston to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 26 February 2026.
Use the filters below to find and compare flights from Boston to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 20/8

15:35-10:00

1 stop13h 25m

London Heathrow

Fri 28/8

10:50-17:40

1 stop11h 50m

£393

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 1/5

21:30-09:15

Nonstop6h 45m

London Heathrow

Thu 7/5

09:55-16:25

1 stop11h 30m

£395

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 30/3

19:00-06:45

Nonstop6h 45m

London Heathrow

Mon 13/4

09:55-16:25

1 stop11h 30m

£395

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 29/4

21:30-09:15

Nonstop6h 45m

London Heathrow

Tue 5/5

09:55-16:33

1 stop11h 38m

£395

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 1/4

15:10-13:05

1 stop16h 55m

London Heathrow

Wed 8/4

06:15-13:33

1 stop12h 18m

£398

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 25/4

20:15-08:05

Nonstop6h 50m

London Heathrow

Mon 18/5

14:30-17:00

Nonstop7h 30m

£400

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 18/4

18:40-21:00

1 stop21h 20m

London Heathrow

Sat 25/4

14:05-09:49

1 stop24h 44m

£402

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 12/4

18:40-10:00

1 stop10h 20m

London Heathrow

Thu 16/4

12:40-22:39

2 stops14h 59m

£408

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 15/3

05:45-10:50

1 stop25h 05m

London Heathrow

Wed 18/3

13:25-09:32

1 stop24h 07m

£410

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 7/8

23:10-10:40

Nonstop6h 30m

London Heathrow

Sun 16/8

18:55-21:20

Nonstop7h 25m

£418

Flights are sorted by cheapest return flights first.

Deals found on 24/2

Showing 1-10 of 23 resultsSorted by cheapest first
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2
3

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.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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?

Use this chart to determine the optimal time to book a return flight from Boston to Heathrow. Price data was last updated on 20 February 2026.

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.

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

Currently, October is the cheapest month in which you can book a flight from Boston to London Heathrow Airport (average of £322). Flying from Boston to London Heathrow Airport in June is currently the most expensive (average of £439). 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.

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

Find hourly flight availability from Boston to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 26 February 2026.

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.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 26 February 2026.
Read reviews from past customers who have flown with Virgin Atlantic, Air France, andJetBlue 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.
Virgin Atlantic
7.5
Good
679 reviews
Check prices

Crew

8.2

Entertainment

7.6

Comfort

7.3

Food

6.9

Boarding

7.7

Overall

7.5

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.5
Good
679 reviews
Virgin Atlantic
7.5
Good
679 reviews
Check prices

Crew

8.2

Entertainment

7.6

Comfort

7.3

Food

6.9

Boarding

7.7

Overall

7.5

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Air France
7.4
Good
1,538 reviews
Virgin Atlantic
7.5
Good
679 reviews
Check prices

Crew

8.2

Entertainment

7.6

Comfort

7.3

Food

6.9

Boarding

7.7

Overall

7.5

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
JetBlue
7.2
Good
2,896 reviews
Virgin Atlantic
7.5
Good
679 reviews
Check prices

Crew

8.2

Entertainment

7.6

Comfort

7.3

Food

6.9

Boarding

7.7

Overall

7.5

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Iberia
7.0
Good
3,127 reviews
Virgin Atlantic
7.5
Good
679 reviews
Check prices

Crew

8.2

Entertainment

7.6

Comfort

7.3

Food

6.9

Boarding

7.7

Overall

7.5

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
British Airways
6.7
Okay
7,770 reviews
Virgin Atlantic
7.5
Good
679 reviews
Check prices

Crew

8.2

Entertainment

7.6

Comfort

7.3

Food

6.9

Boarding

7.7

Overall

7.5

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

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?

    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 28 daily outbound flights to London Heathrow from 8 different airlines.

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

    A quick flight from Boston to London Heathrow Airport can take about 6h 45m. United Airlines provides one of the quickest options available for as low as £395. 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.

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

    JetBlue, at £352, was found to be the cheapest airline from Boston to London Heathrow Airport.Alternate airlines flying return to your destination include KLM and Finnair. JetBlue is 23% cheaper than the average price of flights available within the next 90 days to this destination.

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

    For one-way options, check prices for JetBlue. According to our data, you can fly for as low as £95. Users have also found prices from £122 and £141 on Air France and Virgin Atlantic, respectively.

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

    The top 3 most reliable airlines when flying from Boston to London Heathrow Airport are Gulf Air (91%), Malaysia Airlines (87%) and American Airlines (80%).

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

    Looking for the cheapest flight from Boston to London Heathrow Airport? While on average our users pay £701, our data indicates the cheapest price to be £158. The most popular route (Boston Logan Intl - London Heathrow), is priced around £295.

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

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

  • How can I find direct flights from Boston to Heathrow?

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

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

    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.

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

    Currently, October is the cheapest month in which you can book a flight from Boston to London Heathrow Airport (average of £322). Flying from Boston to London Heathrow Airport in June is currently the most expensive (average of £439). 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.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Wembley
Luton
Northampton
Gatwick
Slough
Hounslow
Ilford
Hayes
Brentford
Colchester
Watford
Guildford
Kingston upon Thames
Eastbourne
Ipswich
Chelmsford
Swindon
Bedford

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.

Top 8 airlines flying from Boston to Heathrow

Discover the top 8 airlines that operate flights from Boston to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 26 February 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest£352Average£608FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
KLMCheapest£353Average£561FlexibilityNo cancel feeOn-time75%
Search KLM flights
FinnairCheapest£354Average£576FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Air FranceCheapest£359Average£532FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£360Average£425FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IberiaCheapest£361Average£558FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£372Average£477FlexibilityNo cancel feeOn-time70%
Search British Airways flights
DeltaCheapest£382Average£523FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

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?

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.

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

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.

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

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

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

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.

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