Cheap flights from London Heathrow Airport to Boston from £339
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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BOS
7 Sep — 14 Sep1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Boston Logan Intl are usually found in February or October, booked 59 days in advance, depart on a Wednesday or Tuesday and return on a Monday
Cheap flight deals from Heathrow to Boston
Enter your travel dates to find the best prices.
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One-way
Cheapest flights from Heathrow to Boston
Explore the most affordable flight options available from Heathrow to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 August 2026.
Wed 9/920:50 -
1 stop29h 15m
Wed 16/922:55 -
1 stop29h 15m
Deal found 4/8£429
Fri 11/917:35 -
Nonstop7h 30m
Fri 25/907:25 -
Nonstop6h 30m
Deal found 7/8£432
Tue 8/920:50 -
1 stop29h 15m
Sun 20/923:35 -
1 stop15h 30m
Deal found 3/8£433
Wed 23/909:55 -
1 stop16h 10m
Sun 27/923:35 -
1 stop28h 35m
Deal found 3/8£433
Wed 7/1020:50 -
1 stop29h 15m
Wed 21/1022:55 -
1 stop29h 15m
Deal found 7/8£436
Sat 3/1016:40 -
1 stop27h 15m
Sun 4/1021:40 -
1 stop10h 20m
Deal found 5/8£436
Sat 10/1007:45 -
2 stops16h 22m
Sat 10/1021:40 -
1 stop13h 45m
Deal found 7/8£437
Wed 23/918:00 -
2 stops21h 32m
Thu 24/918:25 -
1 stop21h 35m
Deal found 7/8£439
Thu 10/918:00 -
2 stops21h 18m
Fri 11/918:25 -
1 stop21h 35m
Deal found 7/8£439
Wed 23/920:50 -
1 stop29h 15m
Wed 30/922:55 -
1 stop29h 15m
Deal found 6/8£440
Tue 20/1013:05 -
1 stop10h 45m
Tue 27/1020:50 -
1 stop18h 40m
Deal found 3/8£441
Best flights from Heathrow to Boston
Discover carefully curated flight deals from Heathrow to Boston that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 8 August 2026.
Sun 4/1006:50 -
2 stops14h 56m
Sun 4/1018:50 -
1 stop10h 10m
Deal found 7/8£477
Thu 10/1208:15 -
1 stop16h 40m
Sun 13/1222:45 -
2 stops13h 45m
Deal found 4/8£477
Thu 1/1008:40 -
1 stop12h 56m
Tue 6/1021:30 -
Nonstop6h 45m
Deal found 4/8£494
Mon 9/1108:40 -
1 stop10h 33m
Mon 23/1119:15 -
Nonstop6h 35m
Deal found 3/8£494
Thu 5/1109:20 -
Nonstop7h 54m
Sun 8/1119:10 -
Nonstop6h 45m
Deal found 4/8£503
Thu 17/1213:45 -
1 stop11h 35m
Sun 3/106:00 -
1 stop19h 20m
Deal found 5/8£485
Mon 9/1106:30 -
1 stop12h 43m
Mon 16/1120:00 -
Nonstop6h 50m
Deal found 7/8£495
Thu 3/1208:40 -
1 stop10h 40m
Tue 8/1220:00 -
Nonstop6h 50m
Deal found 7/8£495
Thu 29/1009:20 -
Nonstop7h 54m
Fri 6/1119:10 -
Nonstop6h 45m
Deal found 4/8£503
Wed 23/913:50 -
1 stop11h 05m
Sun 27/910:51 -
1 stop14h 04m
Deal found 5/8£485
Tue 22/906:30 -
1 stop11h 49m
Fri 9/1019:05 -
Nonstop6h 40m
Deal found 6/8£498
Direct flights from Heathrow to Boston
Explore direct flight options from Heathrow to Boston based on user searches, and compare prices and availability for your desired travel dates. Data last updated 8 August 2026.
Fri 11/917:35 -
Nonstop7h 30m
Fri 25/907:25 -
Nonstop6h 30m
Deal found 7/8£432
Fri 28/820:10 -
Nonstop7h 25m
Sun 30/821:55 -
Nonstop6h 45m
Deal found 7/8£447
Fri 18/916:05 -
Nonstop7h 45m
Fri 25/919:05 -
Nonstop6h 40m
Deal found 4/8£455
Sat 12/917:35 -
Nonstop7h 30m
Mon 21/919:40 -
Nonstop6h 30m
Deal found 5/8£462
Fri 18/909:40 -
Nonstop7h 37m
Sun 27/921:30 -
Nonstop6h 45m
Deal found 5/8£473
Wed 16/916:05 -
Nonstop7h 45m
Wed 23/921:30 -
Nonstop6h 45m
Deal found 4/8£474
Fri 18/916:05 -
Nonstop7h 45m
Sun 27/919:05 -
Nonstop6h 40m
Deal found 5/8£477
Thu 8/1016:05 -
Nonstop7h 45m
Sun 11/1019:05 -
Nonstop6h 40m
Deal found 4/8£478
Mon 28/909:40 -
Nonstop7h 37m
Tue 6/1019:05 -
Nonstop6h 40m
Deal found 5/8£479
Fri 18/909:40 -
Nonstop7h 37m
Thu 24/919:05 -
Nonstop6h 40m
Deal found 4/8£479
Wed 7/1009:40 -
Nonstop7h 41m
Wed 21/1021:30 -
Nonstop6h 45m
Deal found 7/8£480
Tue 8/916:05 -
Nonstop7h 45m
Sun 13/919:05 -
Nonstop6h 40m
Deal found 4/8£481
Last-minute flights from Heathrow to Boston
Discover last-minute flight deals from Heathrow to Boston. Data last updated 8 August 2026 and is based on user searches.
Fri 28/807:45 -
1 stop15h 07m
Sun 30/815:30 -
1 stop11h 50m
Deal found 7/8£437
Tue 8/920:50 -
1 stop29h 15m
Sun 20/923:35 -
1 stop15h 30m
Deal found 3/8£433
Tue 8/910:25 -
2 stops18h 34m
Wed 9/910:40 -
1 stop14h 50m
Deal found 7/8£441
Wed 9/920:50 -
1 stop29h 15m
Wed 16/922:55 -
1 stop29h 15m
Deal found 4/8£429
Thu 10/918:00 -
2 stops21h 18m
Fri 11/918:25 -
1 stop21h 35m
Deal found 7/8£439
Fri 11/917:35 -
Nonstop7h 30m
Fri 25/907:25 -
Nonstop6h 30m
Deal found 7/8£432
Wed 16/913:05 -
1 stop13h 40m
Wed 30/920:50 -
1 stop18h 30m
Deal found 5/8£442
Wed 23/909:55 -
1 stop16h 10m
Sun 27/923:35 -
1 stop28h 35m
Deal found 3/8£433
Wed 23/918:00 -
2 stops21h 32m
Thu 24/918:25 -
1 stop21h 35m
Deal found 7/8£439
Wed 23/920:50 -
1 stop29h 15m
Wed 30/922:55 -
1 stop29h 15m
Deal found 6/8£440
One-way flights from Heathrow to Boston
Search for one-way flight options from Heathrow to Boston. Find affordable one-way fares based on user searches. Data last updated 8 August 2026.
Wed 3/206:00 -
2 stops32h 58m
Deal found 6/8£339
Fri 25/910:50 -
1 stop13h 20m
Deal found 4/8£340
Tue 15/906:50 -
2 stops14h 15m
Deal found 5/8£341
Sun 4/1008:55 -
2 stops15h 50m
Deal found 3/8£341
Thu 24/917:15 -
2 stops30h 55m
Deal found 5/8£342
Fri 25/911:30 -
1 stop12h 40m
Deal found 3/8£343
Wed 20/106:50 -
2 stops13h 03m
Deal found 5/8£344
Mon 21/1207:30 -
1 stop17h 30m
Deal found 6/8£345
Tue 6/1020:50 -
3 stops27h 40m
Deal found 6/8£346
Sun 27/911:05 -
2 stops32h 36m
Deal found 3/8£347
Sun 27/910:05 -
Nonstop7h 30m
Deal found 5/8£347
Find flight deals from Heathrow to Boston
Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Boston (BOS). 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 8 August 2026.
Customise your flight search to find flights from Heathrow to Boston 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 858,174 searches. Data last updated 8 August 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Boston that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest return flight
LondonBoston
LHR London Heathrow - BOS Boston Logan Intl
LHRBOS
London Heathrow
Sun 4/10
06:50-16:46
2 stops14h 56m
Boston Logan Intl
Sun 4/10
18:50-10:00
1 stop10h 10m
£477
LondonBoston
LHR London Heathrow - BOS Boston Logan Intl
LHRBOS
London Heathrow
Thu 10/12
08:15-19:55
1 stop16h 40m
Boston Logan Intl
Sun 13/12
22:45-17:30
2 stops13h 45m
£477
LondonBoston
LHR London Heathrow - BOS Boston Logan Intl
LHRBOS
London Heathrow
Thu 17/12
13:45-20:20
1 stop11h 35m
Boston Logan Intl
Sun 3/1
06:00-06:20
1 stop19h 20m
£485
LondonBoston
LHR London Heathrow - BOS Boston Logan Intl
LHRBOS
London Heathrow
Wed 23/9
13:50-19:55
1 stop11h 05m
Boston Logan Intl
Sun 27/9
10:51-05:55
1 stop14h 04m
£485
LondonBoston
LHR London Heathrow - BOS Boston Logan Intl
LHRBOS
London Heathrow
Thu 1/10
08:40-16:36
1 stop12h 56m
Boston Logan Intl
Tue 6/10
21:30-09:15
Nonstop6h 45m
£494
LondonBoston
LHR London Heathrow - BOS Boston Logan Intl
LHRBOS
London Heathrow
Mon 9/11
08:40-14:13
1 stop10h 33m
Boston Logan Intl
Mon 23/11
19:15-06:50
Nonstop6h 35m
£494
LondonBoston
LHR London Heathrow - BOS Boston Logan Intl
LHRBOS
London Heathrow
Mon 9/11
06:30-14:13
1 stop12h 43m
Boston Logan Intl
Mon 16/11
20:00-07:50
Nonstop6h 50m
£495
LondonBoston
LHR London Heathrow - BOS Boston Logan Intl
LHRBOS
London Heathrow
Thu 3/12
08:40-14:20
1 stop10h 40m
Boston Logan Intl
Tue 8/12
20:00-07:50
Nonstop6h 50m
£495
LondonBoston
LHR London Heathrow - BOS Boston Logan Intl
LHRBOS
London Heathrow
Tue 22/9
06:30-13:19
1 stop11h 49m
Boston Logan Intl
Fri 9/10
19:05-06:45
Nonstop6h 40m
£498
Fastest return journey
LondonBoston
LHR London Heathrow - BOS Boston Logan Intl
LHRBOS
London Heathrow
Thu 5/11
09:20-12:14
Nonstop7h 54m
Boston Logan Intl
Sun 8/11
19:10-06:55
Nonstop6h 45m
£503
Flights are sorted by cheapest return flights first.
Deals found on 3/8
Showing 1-10 of 23 resultsSorted by cheapest first
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2
3
Best time to book a flight from Heathrow to Boston
Have a flexible travel schedule? Discover the best time to fly to Boston from Heathrow with our price prediction graph.
LHR-BOS
Estimated return 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 London Heathrow Airport to Boston
Prices
Airlines
Delays
More
How far ahead should I book a flight from London Heathrow Airport to Boston?
The best time to book flights from London Heathrow Airport to Boston is 58 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from London Heathrow Airport to Boston?
Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Boston (average of £419). Flying from London Heathrow Airport to Boston in June is currently the most expensive (average of £621). 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 LHR to BOS?
Find hourly flight availability from Heathrow to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 8 August 2026.
When flying from London Heathrow Airport to Boston, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 21% versus a flight in the evening.
What is the cheapest day to fly from London Heathrow Airport to Boston?
Use this chart to determine the cheapest time to fly return from Heathrow to Boston. Price data was last updated on 1 August 2026.
Travellers seeking maximum savings on their London Heathrow Airport to Boston flight should consider departing on Wednesday at midday when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
How much does it cost for a return flight from London Heathrow Airport to Boston?
Airfare is below average for this route at the moment.
London Heathrow Airport to Boston flights typically cost between £479 and £610 in September.The cheapest return price found within the last 5 days was £429 on LEVEL (9 Sept–16 Sept).
Weekly flight availability from London Heathrow Airport to Boston
Explore weekly flight availability from Heathrow to Boston. 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 8 August 2026.
The most flights from LHR to BOS are scheduled on a Wednesday (39 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (24 on average).
How often are flights from London to Boston delayed?
About 9% of weekly flights between London and Boston have experienced delays in the past year, with the average delay time being 157 minutes.
What is the most punctual flight time for London to Boston flights?
Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Saturday tends to have the lowest number of delays on this route, whereas Tuesday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on London to Boston flights?
Over the past year, Virgin Atlantic have had the lowest number of delays on this route, with just 5% of flights being delayed.
What’s the top stopover airport for flights from London Heathrow Airport to Boston?
Share of one-stop return flights from London Heathrow Airport to Boston chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Reykjavik (KEF) – chosen by Cheapflights users on 37% of one-stop itineraries from London Heathrow Airport to Boston on Cheapflights.
What’s the cheapest stopover airport for flights from London Heathrow Airport to Boston?
Average return fare for one-stop flights from London Heathrow Airport to Boston, chosen by Cheapflights users in the past 12 months, with the same stopover each way.
Washington, D.C. (IAD) is the most affordable one-stop option, with an average return flight price of £371.
What’s the fastest stopover option from London Heathrow Airport to Boston?
Shortest average travel time for one-stop one-way flights from London Heathrow Airport to Boston, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Montreal (YUL) have the shortest average one-way travel time for one-stop routes: 10h 17m.
Which airport typically offers the quickest stopover for flights from London Heathrow Airport to Boston?
Average stopover duration for one-stop one-way flights from London Heathrow Airport to Boston, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Zurich (ZRH) offer the fastest connection on this route, with an average stopover time of 1h 00m.
Reviews of airlines servicing Boston
Get insights into the airlines that provide service to Boston. 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 Boston. Reviews last updated 8 August 2026.
Get a feel of what it's like to fly with KLM,Air France, andVirgin Atlantic from London Heathrow Airport to Boston by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
The priority tag for bags were taken out. 1 bag is missing. Food was worst for AVML. The food was dry and burnt.
Related info for your journey
Find useful and relevant information for your journey from Heathrow to Boston. 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 into for flights to Boston from London Heathrow?
Most people fly into Boston Logan Intl (BOS) if they book a flight to Boston from London Heathrow. On average, Logan Intl has 32 inbound flights from London Heathrow per day from 16 airlines. Boston Logan Intl is conveniently located just 2.6 mi from Boston’s city center.
How long is the flight from London Heathrow Airport to Boston?
There are many flights that can get you from London Heathrow Airport to Boston in 12h 56m. Fly via United Airlines, TAP AIR PORTUGAL, or Delta to get the fastest option. The distance between London Heathrow Airport and Boston is about 3254 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from London Heathrow Airport to Boston round-trip?
Our cheapest airline available from London Heathrow Airport to Boston is Delta. Our recent data shows that you can find tickets from as low as £276 on this airline. Additional options worth looking into are Icelandair and Lufthansa, starting at £292 and £312 round-trip. Delta is priced at 45% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from London Heathrow Airport to Boston one-way?
One-way options have recently been found by users for as low as £253 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include JetBlue from £263 and Air Canada from £270 one-way.
What are the most reliable airlines from London Heathrow Airport to Boston?
Consider JetBlue (93%), Scandinavian Airlines (93%) or TAP AIR PORTUGAL (93%) when booking your flight. These represent the most reliable airlines when flying from London Heathrow Airport to Boston.
What are the cheapest flights from London Heathrow Airport to Boston?
The cheapest flight price from London Heathrow Airport to Boston is £342. On average you can expect to pay £1,268. The most popular route, (London Heathrow - Boston Logan Intl), can usually be booked for £367.
Can I find deals for business class flights from Heathrow to Boston?
Yes. Cheapflights offers flight deals from Heathrow to Boston 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 London Heathrow Airport to Boston?
Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Boston (average of £419). Flying from London Heathrow Airport to Boston in June is currently the most expensive (average of £621). 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.
Book flights to Boston if you plan to visit one of these locations
Burlington
Canton
North Truro
Waltham
Warwick
Cambridge
Peabody
Wellfleet
Revere
Somerville
Quincy
Chelmsford
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Fly from Heathrow to Boston on these airlines
Choose from the following airlines for your flight from Heathrow to Boston. Flights are based on user searches made on Cheapflights and were last updated on 8 August 2026.
Explore flights to Boston departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 8 August 2026.
Discover the top 10 airlines that operate flights from Heathrow to Boston. 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 858,174 searches. Data last updated 8 August 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Heathrow to Boston?
Cheapflights makes it easy to find Heathrow to Boston flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Heathrow to Boston?
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Boston from Heathrow.
Can Cheapflights find flights from Heathrow to Boston with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Boston flexibly with Cheapflights today.
Can Cheapflights notify me if prices for flights from Heathrow to Boston become cheaper?
Yes! Start tracking prices for Heathrow to Boston flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.
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