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Cheap flights from London Heathrow Airport to Boston from £328

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 23/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BOS
19 Jul — 26 Jul1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Boston Logan Intl are usually found in February or September, booked 44 days in advance, depart on a Wednesday or Thursday and return on a Monday

Cheap 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 14 July 2025.

Round-trip from

£368

One-way from

£328

Popular in

August

Cheapest in

February

Average price

£570

Good round-trip deal

£414 or less

Good one-way deal

£447 or less
United Airlines
  • United Airlines
  • 26/8-2/9
  • 3 total stops
  • 25h 01m total
  • London to Boston
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Aer Lingus
  • Aer Lingus
  • 26/8
  • 1 total stop
  • 26h 50m total
  • London to Boston
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Highest demand for flights based on searches. 10% potential increase in price (£40 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from London Heathrow to Boston Logan Intl.
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Price to beat on a one-way flight from London Heathrow to Boston Logan Intl.
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Find flight deals from Heathrow to Boston

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 14 July 2025.

Tue 26/806:50LHR - BOS
2 stops14h 38mUnited Airlines
Tue 2/920:02BOS - LHR
1 stop10h 23mUnited Airlines
Deal found 12/7£368
Fri 29/819:50LHR - BOS
1 stop23h 30mTAP AIR PORTUGAL
Sun 31/822:20BOS - LHR
1 stop14h 25mTAP AIR PORTUGAL
Deal found 13/7£369
Wed 27/818:40LHR - BOS
1 stop25h 45mSWISS
Wed 3/917:05BOS - LHR
1 stop23h 40mSWISS
Deal found 13/7£370
Thu 16/1007:50LHR - BOS
1 stop18h 25mMultiple Airlines
Tue 4/1121:35BOS - LHR
Nonstop6h 40mMultiple Airlines
Deal found 12/7£371
Wed 20/808:15LHR - BOS
1 stop17h 44mIcelandair
Fri 12/1205:11BOS - LHR
1 stop10h 34mIcelandair
Deal found 14/7£373
Wed 27/809:55LHR - BOS
1 stop13h 30mVirgin Atlantic
Wed 3/922:45BOS - LHR
Nonstop6h 45mVirgin Atlantic
Deal found 13/7£374
Tue 26/806:50LHR - BOS
2 stops12h 45mAir Canada
Tue 2/910:40BOS - LHR
2 stops14h 50mAir Canada
Deal found 12/7£374
Tue 23/914:40LHR - BOS
Nonstop7h 30mBritish Airways
Tue 30/921:55BOS - LHR
Nonstop6h 35mBritish Airways
Deal found 12/7£376
Mon 8/914:40LHR - BOS
Nonstop7h 30mAmerican Airlines
Mon 15/906:30BOS - LHR
1 stop10h 10mAmerican Airlines
Deal found 14/7£377
Wed 27/808:40LHR - BOS
1 stop12h 55mDelta
Wed 3/919:05BOS - LHR
Nonstop6h 40mDelta
Deal found 12/7£382
Fri 8/806:30LHR - BOS
1 stop14h 10mLufthansa
Wed 3/914:40BOS - LHR
1 stop11h 15mLufthansa
Deal found 14/7£389
Thu 6/1109:20LHR - BOS
Nonstop7h 50mJetBlue
Mon 17/1115:35BOS - LHR
1 stop12h 55mJetBlue
Deal found 13/7£396

Cheapflights Fare Finder

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 14 July 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Boston that are best for you.

Fly from

Heathrow

Fly to

Boston

Route

Depart

Return

Price

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 26/8

06:50-16:28

2 stops14h 38m

Boston Logan Intl

Tue 2/9

20:02-11:25

1 stop10h 23m

£368

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Fri 29/8

19:50-14:20

1 stop23h 30m

Boston Logan Intl

Sun 31/8

22:20-17:45

1 stop14h 25m

£369

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 27/8

18:40-15:25

1 stop25h 45m

Boston Logan Intl

Wed 3/9

17:05-17:50

1 stop19h 45m

£370

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 16/10

07:50-21:15

1 stop18h 25m

Boston Logan Intl

Tue 4/11

21:35-09:15

Nonstop6h 40m

£371

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 20/8

08:15-20:59

1 stop17h 44m

Boston Logan Intl

Fri 12/12

19:15-06:55

Nonstop6h 40m

£373

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 27/8

09:55-18:25

1 stop13h 30m

Boston Logan Intl

Wed 3/9

22:45-10:30

Nonstop6h 45m

£374

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 26/8

06:50-14:35

2 stops12h 45m

Boston Logan Intl

Tue 2/9

10:40-06:30

2 stops14h 50m

£374

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 23/9

08:55-11:15

Nonstop7h 20m

Boston Logan Intl

Mon 29/9

20:05-07:50

Nonstop6h 45m

£376

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 8/9

08:55-11:15

Nonstop7h 20m

Boston Logan Intl

Mon 15/9

20:05-07:50

Nonstop6h 45m

£377

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 4/8

06:15-18:53

2 stops17h 38m

Boston Logan Intl

Thu 14/8

12:54-06:20

1 stop12h 26m

£381

Flights are sorted by cheapest return flights first.

Deals found on 12/7

Showing 1-10 of 20 results
1
2

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.
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

How far ahead should I book a flight from London Heathrow Airport to Boston?

Use this chart to determine the optimal time to book a return flight from Heathrow to Boston. Price data was last updated on 11 July 2025.

The best time to book flights from London Heathrow Airport to Boston is 44 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, October is the cheapest month in which you can book a flight from London Heathrow Airport to Boston (average of £10). Flying from London Heathrow Airport to Boston in July is currently the most expensive (average of £724). 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 14 July 2025.

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 in the afternoon, which can drop the price by up to 30% 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 13 July 2025.

Travellers seeking maximum savings on their London Heathrow Airport to Boston flight should consider departing on Thursday afternoons 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.

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 14 July 2025.

The most flights from LHR to BOS are scheduled on a Monday (36 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (32 on average).

How much does it cost for a return flight from London Heathrow Airport to Boston?

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 14 July 2025.
Get a feel of what it's like to fly with Delta, SWISS, andUnited Airlines 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.
Delta
8.0
Very Good
7,953 reviews
Check prices

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very Good
7,953 reviews
Delta
8.0
Very Good
7,953 reviews
Check prices

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
SWISS
7.5
Good
1,657 reviews
Delta
8.0
Very Good
7,953 reviews
Check prices

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
United Airlines
7.4
Good
8,856 reviews
Delta
8.0
Very Good
7,953 reviews
Check prices

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Virgin Atlantic
7.4
Good
655 reviews
Delta
8.0
Very Good
7,953 reviews
Check prices

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
JetBlue
7.3
Good
2,908 reviews
Delta
8.0
Very Good
7,953 reviews
Check prices

Crew

8.5

Entertainment

7.9

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

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 34 inbound flights from London Heathrow per day from 17 airlines. Boston Logan Intl is conveniently located just 2.6 mi from Boston’s city center.

  • 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 United Airlines. Our recent data shows that you can find tickets from as low as £368 on this airline. Additional options worth looking into are TAP AIR PORTUGAL and SWISS, starting at £369 and £370 round-trip. United Airlines is priced at 20% 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 £328 on Aer Lingus. Other airlines that offer cheap prices include Icelandair from £329 and JetBlue from £330 one-way.

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

    Consider KLM (92%), Air France (92%) or Delta (92%) 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 £351. On average you can expect to pay £1,573. The most popular route, (London Heathrow - Boston Logan Intl), can usually be booked for £273.

  • Can I find deals for flights from Heathrow to Boston that include hotel bookings?

    Yes. In addition to deals on Heathrow to Boston flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Boston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Boston.

  • 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, October is the cheapest month in which you can book a flight from London Heathrow Airport to Boston (average of £10). Flying from London Heathrow Airport to Boston in July is currently the most expensive (average of £724). 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 Boston?

Book flights to Boston if you plan to visit one of these locations
Burlington
Peabody
Cambridge
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 14 July 2025.
British Airways flights from London Heathrow to Boston Logan Intl
Virgin Atlantic flights from London Heathrow to Boston Logan Intl
Finnair flights from London Heathrow to Boston Logan Intl

Top 10 airlines flying from Heathrow to Boston

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 14 July 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest£278Average£353FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
TAP AIR PORTUGALCheapest£281Average£404FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
LufthansaCheapest£303Average£436FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Scandinavian AirlinesCheapest£305Average£481FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
KLMCheapest£338Average£422FlexibilityNo cancel feeOn-time75%
Search KLM flights
IcelandairCheapest£339Average£416FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air FranceCheapest£339Average£428FlexibilityNo cancel feeOn-time77%
Search Air France flights
United AirlinesCheapest£341Average£403FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£346Average£448FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Aer LingusCheapest£351Average£523FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

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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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