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Cheap flights from Boston to London Heathrow Airport from £198

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 27/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LHR
28 May — 4 Jun1
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 Wednesday

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 28 April 2026.

Wed 7/1023:00
BOS
-
LHR
1 stop29h 10m
LEVEL
Wed 21/1020:50
LHR
-
BOS
1 stop29h 25m
LEVEL
Deal found 24/4£442
Wed 7/1023:00
BOS
-
LHR
1 stop29h 10m
LEVEL
Sat 17/1020:50
LHR
-
BOS
1 stop30h 15m
LEVEL
Deal found 23/4£447
Wed 16/923:00
BOS
-
LHR
1 stop29h 10m
LEVEL
Sun 20/909:55
LHR
-
BOS
1 stop17h 10m
LEVEL
Deal found 25/4£450
Thu 10/923:00
BOS
-
LHR
1 stop16h 05m
LEVEL
Sun 20/909:55
LHR
-
BOS
1 stop17h 10m
LEVEL
Deal found 26/4£453
Wed 9/923:00
BOS
-
LHR
1 stop16h 05m
LEVEL
Sat 19/920:50
LHR
-
BOS
1 stop30h 15m
LEVEL
Deal found 25/4£454
Sat 23/521:15
BOS
-
LHR
2 stops13h 20m
Azores Airlines
Sat 30/508:00
LHR
-
BOS
2 stops16h 50m
Azores Airlines
Deal found 23/4£455
Sun 27/923:50
BOS
-
LHR
1 stop28h 20m
LEVEL
Thu 1/1009:55
LHR
-
BOS
1 stop16h 20m
LEVEL
Deal found 25/4£456
Sun 23/818:25
BOS
-
LHR
1 stop21h 35m
United Airlines
Tue 25/813:50
LHR
-
BOS
1 stop30h 20m
United Airlines
Deal found 23/4£457
Thu 10/923:00
BOS
-
LHR
1 stop16h 05m
LEVEL
Wed 23/920:50
LHR
-
BOS
1 stop29h 25m
LEVEL
Deal found 25/4£458
Sat 23/519:00
BOS
-
LHR
Nonstop6h 45m
Delta
Sat 30/506:30
LHR
-
BOS
1 stop11h 43m
Delta
Deal found 23/4£459
Thu 10/923:00
BOS
-
LHR
1 stop16h 05m
LEVEL
Tue 15/920:50
LHR
-
BOS
1 stop29h 25m
LEVEL
Deal found 26/4£460
Sun 6/923:50
BOS
-
LHR
1 stop28h 20m
LEVEL
Sun 13/909:55
LHR
-
BOS
1 stop17h 10m
LEVEL
Deal found 26/4£461

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 28 April 2026.

Round-trip from

£442

One-way from

£198

Popular in

June

Cheapest in

January

Average price

£501

Good round-trip deal

£558 or less

Good one-way deal

£263 or less
LEVEL
  • LEVEL
  • 7/10-21/10
  • 2 total stops
  • 58h 35m total
  • Boston to London
Search Deals
JetBlue
  • JetBlue
  • 27/5
  • 1 total stop
  • 10h 28m total
  • Boston to London
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£72 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 28 April 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

Cheapest return flight

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 28/9

17:10-08:20

1 stop34h 10m

London Heathrow

Thu 1/10

06:50-16:49

2 stops14h 59m

£490

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 14/10

21:30-09:15

Nonstop6h 45m

London Heathrow

Wed 21/10

06:30-16:36

1 stop15h 06m

£557

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 27/8

23:10-10:40

Nonstop6h 30m

London Heathrow

Mon 31/8

06:15-13:39

1 stop12h 24m

£557
Fastest return journey

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 24/10

20:10-07:50

Nonstop6h 40m

London Heathrow

Mon 16/11

09:40-12:30

Nonstop7h 50m

£562

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 13/5

18:50-10:00

1 stop10h 10m

London Heathrow

Tue 19/5

06:50-16:24

2 stops14h 34m

£564

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 8/10

06:28-21:40

1 stop10h 12m

London Heathrow

Mon 12/10

14:30-17:00

Nonstop7h 30m

£566

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 12/7

23:35-09:10

1 stop28h 35m

London Heathrow

Wed 22/7

20:50-21:45

1 stop29h 55m

£568

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 14/8

12:55-07:10

1 stop13h 15m

London Heathrow

Tue 18/8

16:05-18:50

Nonstop7h 45m

£588

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 19/7

23:35-20:05

1 stop15h 30m

London Heathrow

Sun 26/7

09:55-21:45

1 stop16h 50m

£603

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 19/7

21:40-17:50

1 stop15h 10m

London Heathrow

Tue 21/7

08:55-19:55

2 stops16h 00m

£660

Flights are sorted by cheapest return flights first.

Deals found on 23/4

Showing 1-10 of 24 resultsSorted by cheapest first
1
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?

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 68 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, January is the cheapest month in which you can book a flight from Boston to London Heathrow Airport (average of £389). Flying from Boston to London Heathrow Airport in June is currently the most expensive (average of £639). 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 28 April 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.

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

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 28 April 2026.
Read reviews from past customers who have flown with Finnair,Virgin Atlantic, 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.
Finnair
7.6
Good
1,392 reviews
Check prices

Entertainment

6.9

Comfort

7.4

Food

6.7

Boarding

7.7

Overall

7.6

Crew

8.2

Reviews

1 / 20
10.0
Excellent

Daniel,May 2025

HEL - ARN

This is a very short flight. The crew was all very friendly and helpful. The plane was clean and nice. By the time you're in the air, you're starting to descend. It's painless.
Finnair
7.6
Good
1,392 reviews
Finnair
7.6
Good
1,392 reviews
Check prices

Entertainment

6.9

Comfort

7.4

Food

6.7

Boarding

7.7

Overall

7.6

Crew

8.2

Reviews

1 / 20
10.0
Excellent

Daniel,May 2025

HEL - ARN

This is a very short flight. The crew was all very friendly and helpful. The plane was clean and nice. By the time you're in the air, you're starting to descend. It's painless.
Virgin Atlantic
7.4
Good
688 reviews
Finnair
7.6
Good
1,392 reviews
Check prices

Entertainment

6.9

Comfort

7.4

Food

6.7

Boarding

7.7

Overall

7.6

Crew

8.2

Reviews

1 / 20
10.0
Excellent

Daniel,May 2025

HEL - ARN

This is a very short flight. The crew was all very friendly and helpful. The plane was clean and nice. By the time you're in the air, you're starting to descend. It's painless.
JetBlue
7.2
Good
2,968 reviews
Finnair
7.6
Good
1,392 reviews
Check prices

Entertainment

6.9

Comfort

7.4

Food

6.7

Boarding

7.7

Overall

7.6

Crew

8.2

Reviews

1 / 20
10.0
Excellent

Daniel,May 2025

HEL - ARN

This is a very short flight. The crew was all very friendly and helpful. The plane was clean and nice. By the time you're in the air, you're starting to descend. It's painless.
Iberia
7.0
Good
3,203 reviews
Finnair
7.6
Good
1,392 reviews
Check prices

Entertainment

6.9

Comfort

7.4

Food

6.7

Boarding

7.7

Overall

7.6

Crew

8.2

Reviews

1 / 20
10.0
Excellent

Daniel,May 2025

HEL - ARN

This is a very short flight. The crew was all very friendly and helpful. The plane was clean and nice. By the time you're in the air, you're starting to descend. It's painless.
British Airways
6.7
Okay
7,931 reviews
Finnair
7.6
Good
1,392 reviews
Check prices

Entertainment

6.9

Comfort

7.4

Food

6.7

Boarding

7.7

Overall

7.6

Crew

8.2

Reviews

1 / 20
10.0
Excellent

Daniel,May 2025

HEL - ARN

This is a very short flight. The crew was all very friendly and helpful. The plane was clean and nice. By the time you're in the air, you're starting to descend. It's painless.

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 30 daily outbound flights to London Heathrow from 9 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 29h 10m. LEVEL provides one of the quickest options available for as low as £442. The distance between Boston and London Heathrow Airport is about 3254 mi.

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

    Delta, at £273, was found to be the cheapest airline from Boston to London Heathrow Airport.Alternate airlines flying return to your destination include JetBlue and KLM. Delta is 41% 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 Scandinavian Airlines (95%), KLM (93%) and Delta (91%).

  • 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 £471, our data indicates the cheapest price to be £234. The most popular route (Boston Logan Intl - London Heathrow), is priced around £379.

  • 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, January is the cheapest month in which you can book a flight from Boston to London Heathrow Airport (average of £389). Flying from Boston to London Heathrow Airport in June is currently the most expensive (average of £639). 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
Wembley
Croydon
Northampton
Hounslow
Luton
Gatwick
Ilford
Slough
Hayes
Brentford
Colchester
Romford
Watford
Kingston upon Thames
Eastbourne
Swindon
Ipswich
Southend-on-Sea
Guildford

Browse thousands of different options on Cheapflights for your next trip

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Top 9 airlines flying from Boston to Heathrow

Discover the top 9 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 28 April 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£273Average£522FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
JetBlueCheapest£351Average£607FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
KLMCheapest£352Average£550FlexibilityNo cancel feeOn-time75%
Search KLM flights
FinnairCheapest£354Average£489FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Virgin AtlanticCheapest£356Average£419FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air FranceCheapest£358Average£499FlexibilityNo cancel feeOn-time77%
Search Air France flights
IberiaCheapest£361Average£557FlexibilityNo cancel feeOn-time77%
Search Iberia flights
British AirwaysCheapest£368Average£488FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£381Average£526FlexibilityNo cancel feeOn-time71%
Search American Airlines 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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