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Cheap flights from Boston to London Heathrow Airport from C$ 406

BOS — LHR
11 Oct — 18 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Boston to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Boston to Heathrow

Tue 13/105:40 p.m. -
2 stops15h 55m
Mon 19/107:05 a.m. -
2 stops13h 30m
Deal found 11/9C$ 963
Thu 15/105:50 p.m. -
2 stops14h 05m
Mon 19/107:05 a.m. -
2 stops13h 30m
Deal found 10/9C$ 964
Sun 11/105:40 p.m. -
2 stops17h 45m
Fri 16/109:05 p.m. -
2 stops23h 30m
Deal found 11/9C$ 967
Sun 4/109:40 p.m. -
1 stop29h 15m
Wed 7/107:25 a.m. -
1 stop15h 15m
Deal found 10/9C$ 970
Thu 15/105:50 p.m. -
1 stop10h 30m
Fri 30/107:30 p.m. -
1 stop25h 15m
Deal found 11/9C$ 971
Mon 28/127:10 p.m. -
Nonstop6h 40m
Thu 14/19:40 a.m. -
Nonstop7h 47m
Deal found 10/9C$ 973
Wed 7/108:25 p.m. -
1 stop9h 20m
Thu 15/109:40 a.m. -
Nonstop7h 41m
Deal found 11/9C$ 974
Fri 25/97:40 p.m. -
Nonstop6h 30m
Fri 2/102:30 p.m. -
Nonstop7h 30m
Deal found 11/9C$ 975
Sat 7/115:35 p.m. -
2 stops20h 15m
Thu 19/116:40 a.m. -
1 stop14h 05m
Deal found 10/9C$ 977
Fri 9/105:50 a.m. -
1 stop19h 40m
Wed 14/108:40 a.m. -
1 stop16h 15m
Deal found 11/9C$ 980
Sat 26/96:00 a.m. -
1 stop10h 25m
Wed 30/96:00 a.m. -
1 stop18h 55m
Deal found 11/9C$ 981
Sat 17/105:50 p.m. -
1 stop17h 10m
Sat 24/103:35 p.m. -
2 stops30h 10m
Deal found 11/9C$ 982

Find flight deals from Boston to Heathrow

Round-trip from

C$ 963

One-way from

C$ 406

Popular in

June

Cheapest in

January

Average price

C$ 1,065
Scandinavian Airlines
  • Scandinavian Airlines
  • 13/10-19/10
  • 4 total stops
  • 29h 25m total
  • Boston to London
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British Airways
  • British Airways
  • 22/10-31/12
  • Nonstop
  • 6h 45m total
  • Boston to London
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Highest demand for flights based on searches. 18% potential increase in price (C$ 326 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease (C$ 58 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Cheapflights Fare Finder

 
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 round-trip

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Fri 6/11

6:25 p.m.-9:00 p.m.

1 stop21h 35m

London Heathrow

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 409

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Fri 27/11

6:45 p.m.-6:25 a.m.

Nonstop6h 40m

London Heathrow

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 409
Quickest round-trip

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Wed 28/10

8:15 p.m.-6:50 a.m.

Nonstop6h 35m

London Heathrow

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 409

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Sun 8/11

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

Nonstop6h 50m

London Heathrow

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 409

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Thu 22/10

9:51 a.m.-6:55 a.m.

2 stops16h 04m

London Heathrow

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 414

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Sun 11/10

10:51 a.m.-6:55 a.m.

2 stops15h 04m

London Heathrow

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 414

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Thu 31/12

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

Nonstop6h 40m

London Heathrow

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 414

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Thu 1/10

10:51 a.m.-6:45 a.m.

2 stops14h 54m

London Heathrow

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 414

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Thu 8/10

12:45 p.m.-6:30 a.m.

2 stops12h 45m

London Heathrow

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 420

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Tue 5/1

6:00 a.m.-6:40 a.m.

2 stops19h 40m

London Heathrow

Wed 31/12

12:00 a.m.-6:00 p.m.

Nonstop0h 00m

C$ 420

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/9

Showing 1-10 of 24 resultsSorted by cheapest first
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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

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?

To ensure you get the cheapest price possible for a flight from Boston to London Heathrow Airport, you should look to book at least 49 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$ 730). Flying from Boston to London Heathrow Airport in June is currently the most expensive (average of C$ 1,463). 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?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Boston to London Heathrow Airport as you normally would.

How much does it cost to fly round-trip from Boston to London Heathrow Airport?

Airfare is typical for this route at the moment.

Boston to London Heathrow Airport flights typically cost between C$ 888 and C$ 1,212 in October.
The cheapest round-trip price found within the last 5 days was C$ 963 on Scandinavian Airlines (13 Oct-19 Oct).

Related info for your journey

  • 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 30 outbound flights to London Heathrow per day. 0 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?

    KLM, Delta, and Virgin Atlantic can get you from Boston to London Heathrow Airport in just under 6h 35m. Your travel time can differ by up to 6h 05m. 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 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 Gulf Air (93%), SAUDIA (86%) or KLM (83%) as they are the most reliable in getting you off to your destination on time.

  • 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$ 730). Flying from Boston to London Heathrow Airport in June is currently the most expensive (average of C$ 1,463). 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
Gatwick
Romford
Twickenham
Ilford
Bromley
Sutton
Luton
Slough
Marlow
Cobham
Hounslow
Leamington Spa
Northampton
Watford
High Wycombe
Stratford-upon-Avon
Moreton-in-Marsh

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

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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.

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