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Heathrow

$191+ Cheap flights from Boston (BOS) to Heathrow (LHR)

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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LHR
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to London Heathrow are usually found in January or February, booked 80 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap 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 July 28, 2025.

Round-trip from

$464
(Flightnetwork)

One-way from

$191
(oojo)

Popular in

June

Cheapest in

January

Average price

$759

Good round-trip deal

$516 or less

Good one-way deal

$255 or less
From Boston Logan Intl to London Heathrow
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One-way flight from Boston Logan Intl to London Heathrow
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Highest demand for flights based on searches. 13% potential increase in price ($104 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Boston Logan Intl to London Heathrow.
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Price to beat on a one-way flight from Boston Logan Intl to London Heathrow.
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Find flight deals from Boston to Heathrow

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 July 28, 2025.

This TAP AIR PORTUGAL deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/266:05 pmBOS - LHR
1 stop19h 50mTAP AIR PORTUGAL
Mon 12/11:40 pmLHR - BOS
1 stop29h 55mTAP AIR PORTUGAL
Deal found 7/26$464
This Flightnetwork deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/310:20 amBOS - LHR
1 stop15h 10mMultiple Airlines
Fri 10/319:00 amLHR - BOS
1 stop16h 20mMultiple Airlines
Deal found 7/28$465
This Mytrip deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/216:35 pmBOS - LHR
1 stop9h 30mAer Lingus
Sun 12/147:50 amLHR - BOS
1 stop11h 00mAer Lingus
Deal found 7/27$466
This Scandinavian Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/55:35 pmBOS - LHR
2 stops38h 20mScandinavian Airlines
Mon 12/86:40 amLHR - BOS
1 stop14h 10mScandinavian Airlines
Deal found 7/26$468
This KAYAK deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3010:00 pmBOS - LHR
1 stop12h 40mLufthansa
Fri 8/11:45 pmLHR - BOS
1 stop32h 55mLufthansa
Deal found 7/26$469
This Booking.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/310:20 amBOS - LHR
1 stop15h 10mAir Canada
Wed 9/106:50 amLHR - BOS
2 stops12h 40mAir Canada
Deal found 7/26$472
This Brussels Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/38:05 pmBOS - LHR
2 stops19h 50mBrussels Airlines
Fri 9/511:05 amLHR - BOS
2 stops14h 05mBrussels Airlines
Deal found 7/27$475
This Austrian Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/115:10 pmBOS - LHR
1 stop16h 10mAustrian Airlines
Mon 10/139:05 amLHR - BOS
2 stops37h 49mAustrian Airlines
Deal found 7/26$483
This lol.travel deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/216:00 amBOS - LHR
1 stop9h 40mUnited Airlines
Thu 8/2812:40 pmLHR - BOS
1 stop9h 57mUnited Airlines
Deal found 7/27$484
This Ovago deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/199:35 pmBOS - LHR
Nonstop6h 40mBritish Airways
Tue 11/257:30 amLHR - BOS
1 stop12h 45mBritish Airways
Deal found 7/27$489
This Netflights deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/117:05 pmBOS - LHR
Nonstop6h 40mVirgin Atlantic
Sun 9/149:40 amLHR - BOS
Nonstop7h 40mVirgin Atlantic
Deal found 7/27$491
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/239:40 pmBOS - LHR
1 stop10h 20mSWISS
Tue 9/306:00 amLHR - BOS
1 stop14h 25mSWISS
Deal found 7/25$493

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated July 28, 2025.
Use the filters below to find and compare flights from Boston to London Heathrow Airport that are best for you.

Fly from

Boston

Fly to

Heathrow

Route

Depart

Return

Price

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 11/26

6:05 pm-6:55 pm

1 stop19h 50m

London Heathrow

Mon 12/1

1:40 pm-2:35 pm

1 stop29h 55m

$464

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 9/3

10:20 am-6:30 am

1 stop15h 10m

London Heathrow

Fri 10/31

9:00 am-9:20 pm

1 stop16h 20m

$465

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 9/21

6:35 pm-9:05 am

1 stop9h 30m

London Heathrow

Sun 12/14

7:50 am-1:50 pm

1 stop11h 00m

$466

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Fri 12/5

5:35 pm-12:55 pm

2 stops38h 20m

London Heathrow

Mon 12/8

6:40 am-3:50 pm

1 stop14h 10m

$468

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 9/3

10:20 am-6:30 am

1 stop15h 10m

London Heathrow

Wed 9/10

6:50 am-2:30 pm

2 stops12h 40m

$472

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 9/3

8:05 pm-8:55 pm

2 stops19h 50m

London Heathrow

Fri 9/5

11:05 am-8:10 pm

2 stops14h 05m

$475

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 10/11

5:10 pm-2:20 pm

1 stop16h 10m

London Heathrow

Mon 10/13

9:05 am-5:54 pm

2 stops37h 49m

$483

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 8/21

6:00 am-8:40 pm

1 stop9h 40m

London Heathrow

Thu 8/28

12:40 pm-5:37 pm

1 stop9h 57m

$484

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 11/19

9:35 pm-9:15 am

Nonstop6h 40m

London Heathrow

Tue 11/25

7:30 am-3:15 pm

1 stop12h 45m

$489

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 9/11

7:05 pm-6:45 am

Nonstop6h 40m

London Heathrow

Sun 9/14

9:40 am-12:20 pm

Nonstop7h 40m

$491

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 25 results
1
2
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The best insider tips for Boston to London Heathrow Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Boston to London Heathrow Airport trip
Airports
BOS

Use the FlyLogan App to pre-order food and access premium Wi-Fi, enhancing your departure experience from BOS.

Read more about BOSby Paul Rubio
LHR

Take the Heathrow Express for the fastest route to central London, reaching Paddington Station quickly and conveniently.

Read more about LHRby Ramsey Qubein
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on LHR

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Paul Rubio

Paul Rubio

Expert on BOS

Paul Rubio

Paul Rubio

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Read more

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 round-trip 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 round-trip flight from Boston to Heathrow. Price data was last updated on July 25, 2025.

Booking 80 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, November is the cheapest month in which you can book a flight from Boston to London Heathrow Airport (average of $661). Flying from Boston to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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 July 28, 2025.

When flying from Boston to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 7% versus a flight in the evening.

Weekly flight availability from Boston to London Heathrow Airport

Explore weekly flight availability from Boston to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 28, 2025.

The most flights from BOS to LHR are scheduled on a Saturday (39 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (29 on average).

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

Share of 1-stop round-trip flights from Boston to London Heathrow Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.

Reykjavik (KEF) – chosen by Cheapflights users on 75% of 1-stop itineraries from Boston to London Heathrow Airport on Cheapflights.

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

Average round-trip fare for 1-stop flights from Boston to London Heathrow Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Reykjavik (KEF) is the most affordable 1-stop option, with an average round-trip price of $501.

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

Shortest average travel time for 1-stop one-way flights from Boston to London Heathrow Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Montreal (YUL) have the shortest average one-way travel time for 1-stop routes: 9h 10m.

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

Average layover duration for 1-stop one-way flights from Boston to London Heathrow Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average layover time of 6h 36m.

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 July 28, 2025.
See what other customers who have flown with Delta, Austrian Airlines, and SWISS from Boston to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,971 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,971 reviews
Delta
8.0
Very good
7,971 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
820 reviews
Delta
8.0
Very good
7,971 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.6
Good
1,679 reviews
Delta
8.0
Very good
7,971 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very good
7,971 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,893 reviews
Delta
8.0
Very good
7,971 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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?

    Boston Logan Intl (BOS), located 2.6 mi from the city center, is the airport you fly out of when you book flights from Boston to London Heathrow. 18 airlines have flights from Logan Intl to London Heathrow on a regular basis. Booking flights from Boston Logan Intl to London Heathrow should not be difficult; the airport handles an average of 35 outbound flights to London Heathrow per day.

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

    According to our current data, Aer Lingus ($464), Air Canada ($472), and Scandinavian Airlines ($478) offers the cheapest pricing from Boston to London Heathrow Airport. Aer Lingus is 28% 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?

    To fly one-way, consider booking your trip with TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at $191. JetBlue flights start at $194 while deals on Virgin Atlantic start at $197 one-way.

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

    Before booking your flight to London Heathrow Airport from Boston, check out the most reliable airlines to get you to your destination on time: JetBlue (93%), TAP AIR PORTUGAL (93%), KLM( 87%).

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

    The cheapest flight price from Boston to London Heathrow Airport is $211. On average you can expect to pay $2,115. The most popular route, (Boston Logan Intl - London Heathrow), can usually be booked for $366.

  • Where are the most common layover locations when flying from Boston to London Heathrow Airport?

    Boston to London Heathrow Airport flights have a layover in Reykjavik most often.

  • What are some popular things to do or see while on a layover in Reykjavik?

    Harpa, Hallgrímskirkja, and Laugardalslaug Geothermal Pool are currently the most popular points of interest in Reykjavik at the moment. Harpa, Hallgrímskirkja and Laugardalslaug Geothermal Pool are located about 23.3 mi, 23.2 mi, and 24.6 mi, respectively from Reykjavik Keflavik Intl if you are interested in checking them out. Those looking to explore during their layover in Reykjavik can rent a car from Reykjavik Keflavik Intl for about $78 per day.

  • Where are the least popular layover locations for Boston to London Heathrow Airport flights?

    Boston to London Heathrow Airport flights that have layovers will least frequently stop in Shannon.

  • 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 vacation 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, November is the cheapest month in which you can book a flight from Boston to London Heathrow Airport (average of $661). Flying from Boston to London Heathrow Airport in June is currently the most expensive (average of $1,097). 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

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Harrow
Canterbury
Dover
Stratford-upon-Avon
Gatwick
Orpington
Watford
Northampton
Borehamwood
Dartford
Broadway
Aylesbury
Chelmsford
Folkestone
Southend-on-Sea
Chichester
Swindon

Browse thousands of different options on Cheapflights for your next trip

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Top 10 airlines flying from Boston to Heathrow

Discover the top 10 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 2,558,603 searches. Data last updated July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest$290Average$573FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$359Average$666FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$383Average$632FlexibilityNo cancel feeOn-time72%
JetBlueCheapest$384Average$611FlexibilityNo cancel feeOn-time62%
KLMCheapest$387Average$589FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$391Average$605FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$392Average$642FlexibilityNo cancel feeOn-time70%
DeltaCheapest$397Average$659FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$423Average$522FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$429Average$506FlexibilityNo cancel feeOn-timeN/A

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