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Cheap flights from Boston to London Heathrow Airport from C$ 413

BOS — LHR
25 Nov — 2 Dec1
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

Fri 13/115:35 p.m. -
2 stops34h 20m
Mon 16/117:05 a.m. -
2 stops37h 40m
Deal found 26/10C$ 931
Sun 6/125:35 p.m. -
1 stop19h 05m
Wed 9/127:30 p.m. -
1 stop25h 15m
Deal found 26/10C$ 956
Tue 10/119:30 a.m. -
1 stop16h 10m
Wed 11/118:05 p.m. -
1 stop29h 15m
Deal found 22/10C$ 957
Wed 11/116:35 p.m. -
1 stop31h 35m
Sat 14/116:00 a.m. -
1 stop19h 20m
Deal found 22/10C$ 961
Fri 4/127:33 p.m. -
1 stop10h 17m
Sun 6/129:00 a.m. -
1 stop16h 20m
Deal found 22/10C$ 963
Tue 8/125:35 p.m. -
2 stops16h 00m
Fri 22/16:40 a.m. -
1 stop14h 15m
Deal found 23/10C$ 964
Thu 3/125:35 p.m. -
2 stops41h 50m
Thu 10/126:40 a.m. -
1 stop14h 05m
Deal found 23/10C$ 966
Wed 11/116:36 p.m. -
1 stop12h 24m
Fri 13/119:00 a.m. -
2 stops15h 02m
Deal found 24/10C$ 967
Tue 8/125:35 p.m. -
2 stops18h 25m
Sun 13/126:40 a.m. -
1 stop14h 05m
Deal found 23/10C$ 968
Sun 6/125:35 p.m. -
2 stops17h 50m
Sat 12/123:35 p.m. -
2 stops29h 10m
Deal found 23/10C$ 970

Find flight deals from Boston to Heathrow

Round-trip from

C$ 931

One-way from

C$ 413

Popular in

June

Cheapest in

January

Average price

C$ 1,137

Good one-way deal

C$ 546 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 13/11-16/11
  • 4 total stops
  • 72h 00m total
  • Boston to London
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JetBlue
  • JetBlue
  • 4/12-31/12
  • Nonstop
  • 6h 46m total
  • Boston to London
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Highest demand for flights based on searches. 15% potential increase in price (C$ 278 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease (C$ 55 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Price to beat on a one-way flight from Boston Logan Intl to London Heathrow.
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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

Thu 21/1

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$ 413

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Thu 7/1

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$ 413
Quickest round-trip

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Wed 11/11

7:15 p.m.-6:50 a.m.

Nonstop6h 35m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 413

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Wed 11/11

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$ 420

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Thu 10/12

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$ 420

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Fri 8/1

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$ 420

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Wed 6/1

7:08 p.m.-6:53 a.m.

Nonstop6h 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

Thu 10/12

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$ 420

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Tue 10/11

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$ 420

BostonLondon

BOS Boston Logan Intl - LHR London Heathrow

BOSLHR

Boston Logan Intl

Mon 1/2

12:26 p.m.-10:50 a.m.

2 stops17h 24m

London Heathrow

Wed 31/12

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

Nonstop0h 00m

C$ 426

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/10

Showing 1-10 of 22 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$ 750). Flying from Boston to London Heathrow Airport in June is currently the most expensive (average of C$ 1,500). 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 below average for this route at the moment.

Boston to London Heathrow Airport flights typically cost between C$ 982 and C$ 1,365 in November.
The cheapest round-trip price found within the last 5 days was C$ 931 on Scandinavian Airlines (13 Nov-16 Nov).

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 22 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?

    Scandinavian Airlines can get you from Boston to London Heathrow Airport in just under 18h 25m. Your travel time can differ by up to . Airlines will cover a distance of 5237 km.

  • 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 (97%), KLM (88%) or SAUDIA (88%) 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$ 439. While the most popular route (Boston Logan Intl - London Heathrow) can be booked for C$ 1,156 on average, our data indicates C$ 749 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$ 750). Flying from Boston to London Heathrow Airport in June is currently the most expensive (average of C$ 1,500). 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
Kingston upon Thames
Slough
Marlow
Cobham
Hounslow
Wembley
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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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.

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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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