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Cheap flights from London Heathrow Airport to Boston from $366

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Boston departing on 8/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Scandinavian Airlines Logo
6:40 am - 3:35 pmLHR-BOS
13h 55m1 stop
Scandinavian Airlines Logo
5:40 pm - 5:40 pmBOS-LHR
19h 00m1 stop
$429Scandinavian Airlines
Find Deal
Sat, Sep 13 - Mon, Sep 22
Virgin Atlantic Logo
7:15 pm - 6:25 pmLHR-BOS
28h 10m1 stop
Virgin Atlantic Logo
10:45 pm - 10:30 amBOS-LHR
6h 45mnonstop
$430Virgin Atlantic
Find Deal
Mon, Sep 1 - Tue, Sep 9
Scandinavian Airlines Logo
6:40 am - 3:35 pmLHR-BOS
13h 55m1 stop
Scandinavian Airlines Logo
5:40 pm - 5:40 pmBOS-LHR
19h 00m1 stop
$431Scandinavian Airlines
Find Deal
Tue, Sep 16 - Tue, Sep 30
Aer Lingus Logo
1:25 pm - 6:45 pmLHR-BOS
10h 20m1 stop
Aer Lingus Logo
6:35 pm - 9:05 amBOS-LHR
9h 30m1 stop
$433Aer Lingus
Find Deal
Mon, Sep 8 - Mon, Sep 15
Aer Lingus Logo
7:50 am - 1:50 pmLHR-BOS
11h 00m1 stop
Aer Lingus Logo
7:25 pm - 9:15 amBOS-LHR
8h 50m1 stop
$435Aer Lingus
Find Deal
Mon, Nov 3 - Mon, Nov 10
TAP AIR PORTUGAL Logo
7:50 pm - 8:05 pmLHR-BOS
29h 15m1 stop
TAP AIR PORTUGAL Logo
10:40 pm - 5:45 pmBOS-LHR
14h 05m1 stop
$447TAP AIR PORTUGAL
Find Deal
Mon, Sep 1 - Tue, Sep 9
United Airlines Logo
8:40 am - 7:55 pmLHR-BOS
16h 15m1 stop
United Airlines Logo
6:30 pm - 11:25 amBOS-LHR
11h 55m1 stop
$450United Airlines
Find Deal
Fri, Sep 12 - Tue, Sep 16
United Airlines Logo
8:40 am - 3:25 pmLHR-BOS
11h 45m1 stop
United Airlines Logo
6:00 am - 8:40 pmBOS-LHR
9h 40m1 stop
$451United Airlines
Find Deal
Fri, Sep 5 - Thu, Sep 11
TAP AIR PORTUGAL Logo
11:20 am - 8:05 pmLHR-BOS
13h 45m1 stop
TAP AIR PORTUGAL Logo
6:10 pm - 10:20 amBOS-LHR
11h 10m1 stop
$452TAP AIR PORTUGAL
Find Deal
Tue, Sep 2 - Wed, Sep 24
Virgin Atlantic Logo
6:15 pm - 9:00 pmLHR-BOS
7h 45mnonstop
Virgin Atlantic Logo
8:15 pm - 8:05 amBOS-LHR
6h 50mnonstop
$462Virgin Atlantic
Find Deal
Tue, Sep 2 - Wed, Sep 17

Scandinavian Airlines flights from London Heathrow Airport to Boston

Our best Scandinavian Airlines deals on London Heathrow Airport to Boston flight tickets
Scandinavian Airlines
Sep 13
LHR6:40 amLondon Heathrow
13h 55m
1 stop
BOS3:35 pmBoston Logan Intl
Sep 22
BOS5:40 pmBoston Logan Intl
19h 00m
1 stop
LHR5:40 pmLondon Heathrow
Scandinavian Airlines
Sep 16
LHR6:40 amLondon Heathrow
13h 55m
1 stop
BOS3:35 pmBoston Logan Intl
Sep 30
BOS5:40 pmBoston Logan Intl
19h 00m
1 stop
LHR5:40 pmLondon Heathrow
Scandinavian Airlines
Nov 25
LHR6:40 amLondon Heathrow
14h 10m
2 stops
BOS3:50 pmBoston Logan Intl
Dec 2
BOS5:35 pmBoston Logan Intl
16h 00m
2 stops
LHR2:35 pmLondon Heathrow

Virgin Atlantic flights from London Heathrow Airport to Boston

Our best Virgin Atlantic deals on London Heathrow Airport to Boston flight tickets
Virgin Atlantic
Sep 1
LHR7:15 pmLondon Heathrow
28h 10m
1 stop
BOS6:25 pmBoston Logan Intl
Sep 9
BOS10:45 pmBoston Logan Intl
6h 45m
LHR10:30 amLondon Heathrow
Virgin Atlantic
Sep 2
LHR6:15 pmLondon Heathrow
7h 45m
BOS9:00 pmBoston Logan Intl
Sep 17
BOS8:15 pmBoston Logan Intl
6h 50m
LHR8:05 amLondon Heathrow
Virgin Atlantic
Sep 2
LHR8:40 amLondon Heathrow
14h 45m
1 stop
BOS6:25 pmBoston Logan Intl
Sep 24
BOS8:15 pmBoston Logan Intl
6h 50m
LHR8:05 amLondon Heathrow

See travel insights to Boston from

How to get the cheapest flight ticket from London Heathrow Airport to Boston

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Boston?

In general, February is the cheapest month to fly from London Heathrow Airport to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $537. If you aren’t able to travel during the month of February, then book flights to Boston from London Heathrow Airport during September instead. Flights to Boston in September, while not as cheap as those in February, still average around $541.

What is the cheapest day to depart on your flight to Boston?

The cheapest day to depart from London Heathrow Airport to Boston is on a Wednesday when prices can be found for as low as $684. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Saturday is $799.

What is the cheapest time of day to depart on your flight to Boston?

According to our data, the cheapest time of day to fly to Boston is in the afternoon. momondo users have found flights departing from London Heathrow Airport to Boston in the afternoon for as low as $698. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the evening is when there is more demand to fly to Boston, so prices are often more expensive at around $744 per ticket.

What is the cheapest London Heathrow to Boston Logan Intl flight route?

Fly from London Heathrow to Boston Logan Intl for the best London Heathrow - Boston Logan Intl flight prices

How far in advance should I book a flight to Boston?

You are more likely to see cheaper flights to Boston from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $631 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from London Heathrow Airport for as low as $571 on momondo.

What cabin class options are available on London Heathrow to Boston Logan Intl flights?

There are 4 cabin classes available to choose from on London Heathrow to Boston Logan Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London Heathrow Airport to Boston flights?

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Boston.

How have London Heathrow Airport to Boston flight prices changed over time?

As of July 2025, prices for London Heathrow Airport to Boston flights are approximately 4% more expensive when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Boston

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Boston according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap London Heathrow Airport to Boston (LHR to BOS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Boston

Best Price Found

$366

Fastest flight time

7h 39m

Direct flights

Every day

Airports in Boston

1 airport
The best one-way flight to Boston from London Heathrow Airport in the past 72 hours is $366. The best round-trip flight deal from London Heathrow Airport to Boston found on momondo in the last 72 hours is $429.
The fastest flight from London Heathrow Airport to Boston takes 7h 39m
Direct flights go from London Heathrow Airport to Boston every day.
There is 1 airport near Boston: Boston Logan Intl (BOS)

  • How far is London Heathrow to Boston Logan Intl by plane?

    Boston Logan Intl is 3256.0 mi away from London Heathrow. Flights usually cover this in 7h 45m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from London Heathrow Airport to Boston Logan Intl Airport?

    Prices for flights from London Heathrow Airport to Boston Logan Intl Airport are updated daily.

  • How many operators does momondo search for flights from London Heathrow Airport to Boston Logan Intl Airport?

  • How old do you have to be to fly from London Heathrow Airport to Boston Logan Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Boston Logan Intl Airport.

  • What documentation or ID do you need to fly to Boston Logan Intl Airport?

    The required travel and health documents for your Boston Logan Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Boston Logan Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from London Heathrow Airport to Boston?

  • What is the most popular airline from London Heathrow Airport to Boston?


Best airlines flying from London Heathrow Airport to Boston

Compare and see reviews for airlines that fly from London Heathrow Airport to Boston with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $341Free CancellationRating
7.3
1,413 reviews
Search Scandinavian Airlines flights
FinnairPriceFrom $431Free CancellationRating
7.6
1,311 reviews
Search Finnair flights
Aer LingusPriceFrom $452Free CancellationRating
7.1
1,151 reviews
Search Aer Lingus flights
TAP AIR PORTUGALPriceFrom $454Free CancellationRating
7.1
1,912 reviews
Search TAP AIR PORTUGAL flights
IcelandairPriceFrom $454Free CancellationRating
7.0
514 reviews
Search Icelandair flights
British AirwaysPriceFrom $484Free CancellationRating
6.6
7,096 reviews
Search British Airways flights
JetBluePriceFrom $488Free CancellationRating
7.3
2,910 reviews
Search JetBlue flights
American AirlinesPriceFrom $491Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
KLMPriceFrom $501Free CancellationRating
7.8
1,370 reviews
Search KLM flights
DeltaPriceFrom $528Free CancellationRating
8.0
7,962 reviews
Search Delta flights
  • Delta Flights From London Heathrow Airport to Boston

    Delta flies from London Heathrow Airport to Boston around 19 times per week, with 7,958 momondo users rating the airline 8.0/10. The cheapest Delta deal from London Heathrow Airport to Boston in the last 72 hours was $528 (round-trip), much lower than the average airfare cost of $774 for Delta flights on this route.

  • KLM Flights From London Heathrow Airport to Boston

    KLM (7.8/10 from 1,370 reviews) operates around 19 flights from London Heathrow Airport to Boston in any given week. The average KLM airfare for this route is around $578, with deals from around $501 rare but found on momondo. Referenced prices are for round-trip London Heathrow Airport to Boston flight searches in the last 72 hours.


Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Hampton Beach
Salem
Ogunquit
Old Orchard Beach
Hampton
York Beach
Plymouth
Nashua
Cambridge
Kennebunkport
Narragansett
Laconia
Brockton
Concord
Everett
South Yarmouth
Gloucester
Wells
Warwick
Falmouth

Why use momondo?

Why should I use momondo to find a flight deal from London to Boston?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Boston for you.

Can I find flights from London to Boston with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Boston from London with this policy.

How can momondo help me find flights from London to Boston?

momondo helps you find the best flight between London and Boston by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from London to Boston right now. Can momondo alert me if prices change?

Price alerts on flights to Boston from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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1 adult
Sun 7/13
Sun 7/20

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