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Cheap flights from Boston to London Heathrow Airport from C$ 281

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LHR
11 Oct — 18 Oct1
1 adult
1 adult, Economy

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 Monday and return on a Monday

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 11 September 2025.

Round-trip from

C$ 625

One-way from

C$ 281

Popular in

June

Cheapest in

January

Average price

C$ 843

Good round-trip deal

C$ 792 or less

Good one-way deal

C$ 393 or less
Lufthansa
  • Lufthansa
  • 28/1-31/1
  • 2 total stops
  • 46h 15m total
  • Boston to London
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TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 15/10
  • 1 total stop
  • 23h 45m total
  • Boston to London
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Highest demand for flights based on searches. 14% potential increase in price (C$ 204 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 33 potential savings vs. average RT price).
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Average for round-trip flights in September 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 11 September 2025.

Fri 24/1011:00 p.m.BOS - LHR
1 stop16h 05mLEVEL
Sun 2/116:50 p.m.LHR - BOS
1 stop31h 05mLEVEL
Deal found 10/9C$ 639
Wed 1/108:15 p.m.BOS - LHR
1 stop9h 30mMultiple Airlines
Fri 3/109:40 a.m.LHR - BOS
Nonstop7h 45mMultiple Airlines
Deal found 10/9C$ 646
Tue 14/106:35 p.m.BOS - LHR
1 stop9h 30mAer Lingus
Tue 21/109:50 a.m.LHR - BOS
1 stop10h 40mAer Lingus
Deal found 11/9C$ 658
Sat 18/106:35 p.m.BOS - LHR
1 stop9h 30mAer Lingus
Thu 23/101:25 p.m.LHR - BOS
1 stop10h 20mAer Lingus
Deal found 11/9C$ 661
Mon 27/108:10 p.m.BOS - LHR
Nonstop6h 40mMultiple Airlines
Tue 4/116:20 a.m.LHR - BOS
1 stop12h 20mMultiple Airlines
Deal found 10/9C$ 664
Tue 23/97:05 p.m.BOS - LHR
Nonstop6h 40mVirgin Atlantic
Wed 1/1011:30 a.m.LHR - BOS
1 stop13h 50mVirgin Atlantic
Deal found 10/9C$ 665
Tue 14/107:05 p.m.BOS - LHR
Nonstop6h 40mDelta
Fri 24/106:30 a.m.LHR - BOS
1 stop15h 00mDelta
Deal found 11/9C$ 667
Thu 2/105:30 p.m.BOS - LHR
1 stop9h 30mAer Lingus
Sat 11/101:25 p.m.LHR - BOS
1 stop10h 20mAer Lingus
Deal found 11/9C$ 669
Wed 1/105:05 p.m.BOS - LHR
1 stop10h 45mVirgin Atlantic
Wed 8/109:00 a.m.LHR - BOS
1 stop11h 05mVirgin Atlantic
Deal found 11/9C$ 671
Tue 23/95:05 p.m.BOS - LHR
1 stop10h 45mDelta
Tue 30/96:30 a.m.LHR - BOS
1 stop12h 10mDelta
Deal found 9/9C$ 672

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 629,999 searches. Data last updated 11 September 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 22/10

10:45 p.m.-10:30 a.m.

Nonstop6h 45m

London Heathrow

Thu 30/10

6:20 a.m.-2:40 p.m.

1 stop12h 20m

C$ 664

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 11/11

8:00 p.m.-7:50 a.m.

Nonstop6h 50m

London Heathrow

Tue 25/11

6:20 a.m.-4:20 p.m.

1 stop15h 00m

C$ 665

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 12/10

10:45 p.m.-10:30 a.m.

Nonstop6h 45m

London Heathrow

Tue 4/11

9:00 a.m.-4:20 p.m.

1 stop12h 20m

C$ 665

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 14/10

10:45 p.m.-10:30 a.m.

Nonstop6h 45m

London Heathrow

Tue 21/10

6:30 a.m.-4:30 p.m.

1 stop15h 00m

C$ 665

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Mon 22/9

5:05 p.m.-9:15 a.m.

1 stop11h 10m

London Heathrow

Tue 30/9

9:00 a.m.-8:20 p.m.

1 stop16h 20m

C$ 671

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 22/2

4:40 p.m.-8:45 a.m.

1 stop11h 05m

London Heathrow

Wed 4/3

6:20 a.m.-1:30 p.m.

1 stop12h 10m

C$ 682

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sun 9/11

8:00 p.m.-7:50 a.m.

Nonstop6h 50m

London Heathrow

Mon 17/11

6:20 a.m.-1:40 p.m.

1 stop12h 20m

C$ 685

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 3/12

7:10 p.m.-6:50 a.m.

Nonstop6h 40m

London Heathrow

Mon 8/12

8:55 a.m.-4:20 p.m.

1 stop12h 25m

C$ 686

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 18/11

3:40 p.m.-7:10 a.m.

1 stop10h 30m

London Heathrow

Tue 2/12

8:05 p.m.-8:20 p.m.

1 stop29h 15m

C$ 691

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Thu 2/10

9:30 a.m.-6:55 a.m.

1 stop16h 25m

London Heathrow

Sat 11/10

7:25 a.m.-5:40 p.m.

1 stop15h 15m

C$ 696

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 21 results
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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 29 August 2025.

To ensure you get the cheapest price possible for a flight from Boston to London Heathrow Airport, you should look to book at least 80 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 C$ 560). Flying from Boston to London Heathrow Airport in July is currently the most expensive (average of C$ 856). 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 11 September 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 in the morning, which can drop the price by up to 16% versus a flight in the afternoon.

How much does it cost to fly round-trip 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 11 September 2025.
Read reviews from past customers who have flown Virgin Atlantic and British Airways 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
7.4
Good
664 reviews
Check prices

Entertainment

7.5

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.9

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
7.4
Good
664 reviews
Virgin Atlantic
7.4
Good
664 reviews
Check prices

Entertainment

7.5

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.9

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
7,361 reviews
Virgin Atlantic
7.4
Good
664 reviews
Check prices

Entertainment

7.5

Crew

8.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Food

6.9

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?

    For a flight from Boston to London Heathrow, you will be flying from Logan Intl. Boston Logan Intl (BOS) is just 4.2 km from the centre of the city. Logan Intl is the only Boston airport and it handles 33 outbound flights to London Heathrow per day. 2 airlines have flights to London Heathrow from Boston Logan Intl on a regular basis.

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

    Aer Lingus, Delta, and Virgin Atlantic can get you from Boston to London Heathrow Airport in just under 6h 45m. Your travel time can differ by up to 2h 45m. Airlines will cover a distance of 5237 km. Both multi-stop and direct flights can be found to your destination and back.

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

    Cheapflights users have booked flights from Boston to London Heathrow Airport round-trip from C$ 302. Another airline that can offer you cheap pricing is British Airways. These flights start at 66% lower than the current average price 3 months from now.

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

    To fly one-way, consider booking your trip with JetBlue, which is currently one of the cheapest options available, starting at C$ 309. Delta flights start at C$ 309 while deals on Virgin Atlantic start at C$ 309 one-way.

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

    No one likes to see their flight delayed. When booking a flight from Boston to London Heathrow Airport consider choosing Aeromexico (100%), Gulf Air (87%) or Air France (85%) as they are the most reliable in getting you off to your destination on time.

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

    Looking at all options, your cheapest flight can be booked for C$ 262. While the most popular route (Boston Logan Intl - London Heathrow) can be booked for C$ 747 on average, our data indicates C$ 717 when flying from Boston to London Heathrow Airport.

  • 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, January is the cheapest month in which you can book a flight from Boston to London Heathrow Airport (average of C$ 560). Flying from Boston to London Heathrow Airport in July is currently the most expensive (average of C$ 856). 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
Brentford
Sutton
Hounslow
Slough
Marlow
Leamington Spa
Milton Keynes
Romford
Watford
Bedford
Luton
Southall

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Boston to Heathrow

Discover the top 2 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 629,999 searches. Data last updated 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapestC$ 302AverageC$ 569FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapestC$ 538AverageC$ 811FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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

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

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

Certainly. Search results for flights to Heathrow from Boston shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Of course! You can now track prices for flights from Boston to Heathrow and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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