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Cheap flights from London to Boston from £326

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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — BOS
13 Jul — 20 Jul1
1 adult

Cheapflights Tip: The best prices from London to Boston Logan Intl are usually found in September or February, booked 10 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from London to Boston

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) 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 July 2025.

Round-trip from

£364

One-way from

£326

Popular in

August

Cheapest in

September

Average price

£546

Good round-trip deal

£408 or less

Good one-way deal

£467 or less
Lufthansa
  • Lufthansa
  • 27/8-7/9
  • 2 total stops
  • 20h 20m total
  • London to Boston
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7/9
  • 7/9
  • 2 total stops
  • 19h 35m total
  • London to Boston
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Highest demand for flights based on searches. 9% potential increase in price (£36 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 (LON) to Boston Logan Intl.
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Price to beat on a one-way flight from London (LON) to Boston Logan Intl.
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Find flight deals from London to Boston

Cheapest flights from London to Boston
Explore the most affordable flight options available from London to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 8 July 2025.

Thu 2/1006:50LHR - BOS
2 stops12h 40mAir Canada
Thu 30/1015:40BOS - LHR
1 stop11h 30mAir Canada
Deal found 7/7£364
Wed 1/1019:30LHR - BOS
2 stops27h 24mAustrian Airlines
Fri 31/1014:21BOS - LHR
1 stop12h 19mAustrian Airlines
Deal found 7/7£365
Thu 11/912:10LGW - BOS
Nonstop7h 58mJetBlue
Mon 15/921:48BOS - LGW
Nonstop6h 47mJetBlue
Deal found 8/7£365
Sat 30/809:00LHR - BOS
1 stop13h 40mLufthansa
Sun 7/920:05BOS - LHR
1 stop14h 35mLufthansa
Deal found 7/7£366
Wed 17/908:45LCY - BOS
1 stop12h 10mMultiple Airlines
Wed 24/921:40BOS - LCY
1 stop9h 50mMultiple Airlines
Deal found 7/7£366
Tue 19/815:40LGW - BOS
1 stop11h 20mIcelandair
Fri 5/920:50BOS - LGW
1 stop9h 55mIcelandair
Deal found 7/7£366
Tue 2/909:40LHR - BOS
Nonstop7h 40mDelta
Wed 10/919:05BOS - LHR
Nonstop6h 40mDelta
Deal found 7/7£367
Mon 1/912:05LGW - BOS
1 stop13h 40mTAP AIR PORTUGAL
Tue 9/922:40BOS - LGW
1 stop11h 55mTAP AIR PORTUGAL
Deal found 7/7£367
Mon 4/809:40LHR - BOS
Nonstop7h 35mAir France
Mon 11/819:10BOS - LHR
Nonstop6h 35mAir France
Deal found 6/7£368
Tue 19/820:55LHR - BOS
1 stop26h 30mVirgin Atlantic
Tue 26/820:15BOS - LHR
Nonstop6h 50mVirgin Atlantic
Deal found 7/7£369
Wed 29/1018:40LGW - BOS
1 stop30h 40mSWISS
Tue 11/1121:55BOS - LGW
1 stop14h 55mSWISS
Deal found 6/7£369
Thu 9/1009:25LCY - BOS
1 stop15h 30mSWISS
Tue 21/1021:40BOS - LCY
1 stop9h 50mSWISS
Deal found 7/7£370

Cheapflights Fare Finder

Customise your flight search to find flights from London 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 July 2025.
Use the filters below to find and compare flights from London to Boston that are best for you.

Fly from

London

Fly to

Boston

Route

Depart

Return

Price

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 2/10

06:50-14:30

2 stops12h 40m

Boston Logan Intl

Thu 30/10

15:40-07:10

1 stop11h 30m

£364

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 1/10

19:30-17:54

2 stops27h 24m

Boston Logan Intl

Fri 31/10

14:21-06:40

1 stop12h 19m

£365

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Thu 11/9

12:10-15:08

Nonstop7h 58m

Boston Logan Intl

Mon 15/9

21:48-09:35

Nonstop6h 47m

£365

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sat 30/8

09:00-17:40

1 stop13h 40m

Boston Logan Intl

Sun 7/9

20:05-15:40

1 stop14h 35m

£366

LondonBoston

LCY - BOS

LCYBOS

London City

Wed 17/9

08:45-15:55

1 stop12h 10m

Boston Logan Intl

Wed 24/9

21:40-12:30

1 stop9h 50m

£366

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Tue 19/8

15:40-22:00

1 stop11h 20m

Boston Logan Intl

Fri 5/9

20:50-11:45

1 stop9h 55m

£366

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 2/9

09:40-12:20

Nonstop7h 40m

Boston Logan Intl

Wed 10/9

19:05-06:45

Nonstop6h 40m

£367

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Mon 1/9

12:05-20:45

1 stop13h 40m

Boston Logan Intl

Tue 9/9

22:40-15:35

1 stop11h 55m

£367

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 4/8

18:15-21:00

Nonstop7h 45m

Boston Logan Intl

Mon 11/8

20:15-08:05

Nonstop6h 50m

£368

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Wed 29/10

18:40-21:20

1 stop30h 40m

Boston Logan Intl

Wed 12/11

21:55-17:50

1 stop14h 55m

£369

Flights are sorted by cheapest return flights first.

Deals found on 7/7

Showing 1-10 of 49 results
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Best time to book a flight from London to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from London 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 to Boston

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

Use this chart to determine the optimal time to book a return flight from London to Boston. Price data was last updated on 27 June 2025.

The best time to book flights from London to Boston is 10 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 to Boston?

Currently, October is the cheapest month in which you can book a flight from London to Boston (average of £10). Flying from London 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 LON to BOS?

Find hourly flight availability from London 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 July 2025.

It’s optimal to fly from London to Boston in the afternoon. By choosing this option you can save up to 30% on the cost of your flight, compared to a flight in the evening.

What is the cheapest day to fly from London to Boston?

Use this chart to determine the cheapest time to fly return from London to Boston. Price data was last updated on 16 December 2024.

Travellers seeking maximum savings on their London 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 to Boston

Explore weekly flight availability from London 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 July 2025.

The most flights from LON to BOS are scheduled on a Monday (38 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (29 on average).

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 July 2025.
See what other customers who have flown with Delta, KLM, andAustrian Airlines from London to Boston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,962 reviews
Check prices

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very Good
7,962 reviews
Delta
8.0
Very Good
7,962 reviews
Check prices

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,370 reviews
Delta
8.0
Very Good
7,962 reviews
Check prices

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Austrian Airlines
7.6
Good
806 reviews
Delta
8.0
Very Good
7,962 reviews
Check prices

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,650 reviews
Delta
8.0
Very Good
7,962 reviews
Check prices

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,844 reviews
Delta
8.0
Very Good
7,962 reviews
Check prices

Boarding

8.2

Overall

8.0

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from London 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?

    Boston Logan Intl (BOS), located 2.6 mi from the city center, is the airport you fly into when you book flights from London to Boston. 17 airlines have flights to Logan Intl from London on a regular basis. Booking flights from London to Boston Logan Intl should not be difficult; the airport handles an average of 35 inbound flights from London per day.

  • What are the cheapest airlines flying from London to Boston round-trip?

    According to our current data, Lufthansa (£364), Austrian Airlines (£365), and JetBlue (£365) offers the cheapest pricing from London to Boston. Users have found that Lufthansa is 19% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from London to Boston one-way?

    One-way options have recently been found by users for as low as £328 on JetBlue. Other airlines that offer cheap prices include Aer Lingus from £334 and PLAY from £340 one-way.

  • What are the most popular routes from London to Boston?

    The most popular route from London to Boston is London Heathrow - Boston Logan Intl. You may also consider London Gatwick - Boston Logan Intl or London City - Boston Logan Intl.

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

    The top 3 most reliable airlines when flying from London to Boston are KLM (92%), Air France (92%) and Delta (92%).

  • What are the cheapest flights from London to Boston?

    Looking for the cheapest flight from London to Boston? While on average our users pay £1,495, our data indicates the cheapest price to be £351. The most popular route (London Heathrow - Boston Logan Intl), is priced around £314.

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

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

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

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

  • Can I find deals for business class flights from London to Boston?

    Yes. Cheapflights offers flight deals from London 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 to Boston?

    Currently, October is the cheapest month in which you can book a flight from London to Boston (average of £10). Flying from London 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 London?

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Fly from London to Boston on these airlines

Choose from the following airlines for your flight from London to Boston. Flights are based on user searches made on Cheapflights and were last updated on 8 July 2025.
British Airways flights from London to Boston Logan Intl
Virgin Atlantic flights from London to Boston Logan Intl
Finnair flights from London to Boston Logan Intl

Top 10 airlines flying from London to Boston

Discover the top 10 airlines that operate flights from London 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 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£7Average£263FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
PLAYCheapest£259Average£346FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
TAP AIR PORTUGALCheapest£278Average£442FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
IcelandairCheapest£300Average£435FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Scandinavian AirlinesCheapest£304Average£482FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
LufthansaCheapest£308Average£427FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
KLMCheapest£334Average£401FlexibilityNo cancel feeOn-time75%
Search KLM flights
United AirlinesCheapest£335Average£405FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AtlanticCheapest£335Average£441FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air FranceCheapest£336Average£423FlexibilityNo cancel feeOn-time77%
Search Air France flights

Fly with Cheapflights

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 London to Boston?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Boston from London today with Cheapflights!

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

Millions of users choose and trust Cheapflights to book the best flight deals from London to Boston for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from London to Boston with no change fees?

Yes! Cheapflights helps users easily find flights from London to Boston with no change fees.

Can Cheapflights notify me if prices for flights from London to Boston become cheaper?

Yes! Start tracking prices for London 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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