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Cheap flights from London to Boston from £284

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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — BOS
27 Mar — 3 Apr1
1 adult

Cheapflights Tip: The best prices from London to Boston Logan Intl are usually found in September or February, booked 29 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

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 22 March 2025.

Round-trip from

£356

One-way from

£284

Popular in

August

Cheapest in

September

Average price

£427

Good round-trip deal

£463 or less

Good one-way deal

£504 or less
PLAY
  • PLAY
  • 17/4-24/4
  • 2 total stops
  • 21h 35m total
  • London to Boston
8/6
  • 8/6
  • 2 total stops
  • 23h 40m total
  • London to Boston
Highest demand for flights based on searches. 11% potential increase in price (£47 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Average for round-trip flights in March 2025
Price to beat on a round-trip flight from London (LON) to Boston Logan Intl.
Price to beat on a one-way flight from London (LON) to Boston Logan Intl.

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 22 March 2025.

Thu 17/411:40STN - BOS
1 stop11h 10mPLAY
Thu 24/419:15BOS - STN
1 stop10h 25mPLAY
Deal found 20/3£356
Mon 21/421:25LHR - BOS
1 stop26h 25mIcelandair
Mon 28/420:50BOS - LHR
1 stop10h 05mIcelandair
Deal found 21/3£356
Wed 2/406:15LTN - BOS
1 stop16h 35mMultiple Airlines
Tue 29/419:15BOS - LTN
1 stop12h 45mMultiple Airlines
Deal found 20/3£356
Sun 11/522:00STN - BOS
2 stops24h 50mMultiple Airlines
Sat 17/519:15BOS - STN
2 stops24h 05mMultiple Airlines
Deal found 21/3£357
Thu 1/513:00LGW - BOS
1 stop10h 50mIcelandair
Thu 8/520:50BOS - LGW
1 stop12h 50mIcelandair
Deal found 20/3£359
Wed 7/520:45LGW - BOS
2 stops26h 05mMultiple Airlines
Tue 13/519:15BOS - LGW
2 stops19h 40mMultiple Airlines
Deal found 21/3£360
Mon 31/319:30LHR - BOS
1 stop25h 05mScandinavian Airlines
Mon 7/417:40BOS - LHR
1 stop10h 40mScandinavian Airlines
Deal found 21/3£369
Tue 10/621:15LGW - BOS
1 stop28h 30mTAP AIR PORTUGAL
Wed 3/923:15BOS - LGW
1 stop31h 05mTAP AIR PORTUGAL
Deal found 21/3£369
Thu 10/409:30LHR - BOS
1 stop10h 27mAir Canada
Sun 13/415:40BOS - LHR
1 stop9h 50mAir Canada
Deal found 21/3£376
Wed 7/521:10LHR - BOS
2 stops25h 40mMultiple Airlines
Tue 13/519:15BOS - LHR
2 stops13h 40mMultiple Airlines
Deal found 21/3£382
Wed 7/518:35LGW - BOS
1 stop30h 20mSWISS
Sun 11/517:05BOS - LGW
1 stop19h 45mSWISS
Deal found 20/3£392
Wed 7/513:45LHR - BOS
1 stop11h 10mUnited Airlines
Sun 11/512:30BOS - LHR
1 stop13h 25mUnited Airlines
Deal found 20/3£394

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 22 March 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

STN - BOS

STNBOS

London Stansted

Thu 17/4

11:40-17:50

1 stop11h 10m

Boston Logan Intl

Thu 24/4

19:15-10:40

1 stop10h 25m

£356

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 21/4

21:25-18:50

1 stop26h 25m

Boston Logan Intl

Mon 28/4

20:50-11:55

1 stop10h 05m

£356

LondonBoston

LTN - BOS

LTNBOS

London Luton

Wed 2/4

06:15-17:50

1 stop16h 35m

Boston Logan Intl

Tue 29/4

19:15-13:00

1 stop12h 45m

£356

LondonBoston

STN - BOS

STNBOS

London Stansted

Sun 11/5

22:00-17:50

2 stops24h 50m

Boston Logan Intl

Sat 17/5

19:15-00:20

2 stops24h 05m

£357

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Thu 1/5

13:00-18:50

1 stop10h 50m

Boston Logan Intl

Thu 8/5

20:50-14:40

1 stop12h 50m

£359

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Wed 7/5

20:45-17:50

2 stops26h 05m

Boston Logan Intl

Tue 13/5

19:15-19:55

2 stops19h 40m

£360

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 5/5

10:50-17:40

1 stop11h 50m

Boston Logan Intl

Mon 12/5

21:40-13:00

1 stop10h 20m

£364

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 10/6

06:40-15:35

1 stop13h 55m

Boston Logan Intl

Wed 3/9

17:40-17:40

1 stop19h 00m

£367

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Tue 10/6

21:15-20:45

1 stop28h 30m

Boston Logan Intl

Wed 3/9

23:15-11:20

1 stop31h 05m

£369

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 21/4

09:00-20:20

1 stop16h 20m

Boston Logan Intl

Mon 28/4

19:00-06:45

Nonstop6h 45m

£373

Flights are sorted by cheapest return flights first.

Deals found on 20/3

Showing 1-10 of 56 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 14 March 2025.

The best time to book flights from London to Boston is 29 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 22 March 2025.

It’s optimal to fly from London to Boston in the afternoon. By choosing this option you can save up to 25% 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 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.

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 22 March 2025.

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

Rainfall in Boston by month

Plan your trip to Boston by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Boston ranges from 78.0 - 101.0 inches per month. March is typically the wettest month, when rainfall can reach 101.0 mm. July is typically the driest time to visit Boston when rainfall is around 78.0 mm.

Temperature in Boston by month

Plan your trip to Boston by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Boston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -1.0 C).

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 22 March 2025.
See what other customers who have flown with Delta, KLM and Azores Airlines from London to Boston have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Entertainment

7.9

Comfort

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
8.0
Very Good

Overall

8.0

Entertainment

7.9

Comfort

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Overall

8.0

Entertainment

7.9

Comfort

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Overall

8.0

Entertainment

7.9

Comfort

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Overall

8.0

Entertainment

7.9

Comfort

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Overall

8.0

Entertainment

7.9

Comfort

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 32 inbound flights from London per day.

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

    According to our current data, PLAY (£356), Icelandair (£356), and TAP AIR PORTUGAL (£369) offers the cheapest pricing from London to Boston. Users have found that PLAY is 26% 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 £285 on Vueling. Other airlines that offer cheap prices include PLAY from £301 and TAP AIR PORTUGAL from £318 one-way.

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

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

    The top 3 most reliable airlines when flying from London to Boston are Malaysia Airlines (96%), Gulf Air (93%) and JetBlue (90%).

  • What are the cheapest flights from London to Boston?

    Looking for the cheapest flight from London to Boston? While on average our users pay £1,602, our data indicates the cheapest price to be £397. The most popular route (London Heathrow - Boston Logan Intl), is priced around £352.

  • 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?

Book flights to London if you plan to visit one of these locations
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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 22 March 2025.

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 22 March 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£8Average£289FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
PLAYCheapest£272Average£422FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
TAP AIR PORTUGALCheapest£291Average£465FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
IcelandairCheapest£317Average£443FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Scandinavian AirlinesCheapest£337Average£509FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
KLMCheapest£347Average£428FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£350Average£483FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air FranceCheapest£350Average£453FlexibilityNo cancel feeOn-time77%
Search Air France flights
Virgin AtlanticCheapest£350Average£457FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
United AirlinesCheapest£355Average£435FlexibilityNo cancel feeOn-time69%
Search United Airlines 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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