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Cheap flights from London to Boston from £334

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 22/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — BOS
18 Jun — 25 Jun1
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 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 13 June 2025.

Round-trip from

£368

One-way from

£334

Popular in

August

Cheapest in

September

Average price

£463

Good round-trip deal

£381 or less

Good one-way deal

£410 or less
Virgin Atlantic
  • Virgin Atlantic
  • 23/6-30/6
  • 2 total stops
  • 30h 45m total
  • London to Boston
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22/6
  • 22/6
  • 2 total stops
  • 34h 55m 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. 3% potential price decrease (£11 potential savings vs. average return price).
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Average for round-trip flights in June 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 13 June 2025.

Mon 23/608:40LCY - BOS
1 stop14h 40mVirgin Atlantic
Mon 30/620:15BOS - LCY
1 stop16h 05mVirgin Atlantic
Deal found 11/6£368
Wed 18/608:55LHR - BOS
Nonstop7h 20mMultiple Airlines
Mon 23/619:40BOS - LHR
1 stop10h 25mMultiple Airlines
Deal found 11/6£368
Sat 29/1111:55LGW - BOS
1 stop10h 50mIcelandair
Sat 6/1211:35BOS - LGW
1 stop18h 20mIcelandair
Deal found 11/6£368
Wed 9/712:30LHR - BOS
1 stop11h 23mAmerican Airlines
Wed 23/719:40BOS - LHR
Nonstop6h 40mAmerican Airlines
Deal found 12/6£369
Wed 16/708:15STN - BOS
2 stops14h 35mMultiple Airlines
Wed 23/719:15BOS - STN
2 stops22h 15mMultiple Airlines
Deal found 12/6£369
Mon 15/909:40LHR - BOS
Nonstop7h 40mVirgin Atlantic
Sat 27/917:00BOS - LHR
1 stop11h 15mVirgin Atlantic
Deal found 11/6£369
Wed 16/711:35LGW - BOS
1 stop13h 15mIberia
Thu 24/709:34BOS - LGW
1 stop17h 36mIberia
Deal found 12/6£369
Sun 7/909:50LHR - BOS
1 stop10h 40mAer Lingus
Sat 20/918:35BOS - LHR
1 stop9h 30mAer Lingus
Deal found 12/6£370
Wed 16/708:50LGW - BOS
2 stops14h 00mMultiple Airlines
Wed 23/719:15BOS - LGW
2 stops18h 10mMultiple Airlines
Deal found 12/6£371
Wed 3/909:55LHR - BOS
1 stop16h 20mIberia
Thu 11/919:40BOS - LHR
Nonstop6h 40mIberia
Deal found 11/6£372
Fri 5/906:40LHR - BOS
1 stop13h 55mScandinavian Airlines
Thu 2/1017:40BOS - LHR
1 stop17h 20mScandinavian Airlines
Deal found 11/6£372
Sun 14/920:40LGW - BOS
2 stops51h 09mBritish Airways
Tue 23/906:29BOS - LGW
1 stop20h 41mBritish Airways
Deal found 11/6£373

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 13 June 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

LCY - BOS

LCYBOS

London City

Mon 23/6

08:40-18:20

1 stop14h 40m

Boston Logan Intl

Mon 30/6

20:15-17:20

1 stop16h 05m

£368

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sat 30/8

20:50-21:15

1 stop29h 25m

Boston Logan Intl

Mon 1/9

23:35-20:20

1 stop15h 45m

£368

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Sat 29/11

11:55-17:45

1 stop10h 50m

Boston Logan Intl

Sat 6/12

11:35-10:55

1 stop18h 20m

£368

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 9/7

12:30-18:53

1 stop11h 23m

Boston Logan Intl

Wed 23/7

19:40-07:20

Nonstop6h 40m

£369

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Wed 16/7

11:35-19:50

1 stop13h 15m

Boston Logan Intl

Thu 24/7

09:34-08:10

1 stop17h 36m

£369

LondonBoston

STN - BOS

STNBOS

London Stansted

Wed 16/7

08:15-17:50

2 stops14h 35m

Boston Logan Intl

Wed 23/7

19:15-22:30

2 stops22h 15m

£369

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 15/9

09:40-12:20

Nonstop7h 40m

Boston Logan Intl

Sat 27/9

17:00-09:15

1 stop11h 15m

£369

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sun 7/9

09:50-15:30

1 stop10h 40m

Boston Logan Intl

Sat 20/9

18:35-09:05

1 stop9h 30m

£370

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Wed 16/7

08:50-17:50

2 stops14h 00m

Boston Logan Intl

Wed 23/7

19:15-18:25

2 stops18h 10m

£371

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 3/9

09:55-21:15

1 stop16h 20m

Boston Logan Intl

Thu 11/9

19:40-07:20

Nonstop6h 40m

£372

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 60 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 9 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 13 June 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 Wednesday 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 13 June 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 (34 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 13 June 2025.
See what other customers who have flown with Delta, KLM and Austrian 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.
Delta
8.0
Very Good
7,946 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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
7,946 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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
1,358 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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
802 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

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 37 inbound flights from London per day.

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

    According to our current data, Virgin Atlantic (£368), Icelandair (£368), and American Airlines (£369) offers the cheapest pricing from London to Boston. Users have found that Virgin Atlantic 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 £336 on Aer Lingus. Other airlines that offer cheap prices include Vueling from £338 and Scandinavian Airlines from £341 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 Scandinavian Airlines (95%), KLM (94%) and Air France (94%).

  • What are the cheapest flights from London to Boston?

    Looking for the cheapest flight from London to Boston? While on average our users pay £1,347, our data indicates the cheapest price to be £357. The most popular route (London Heathrow - Boston Logan Intl), is priced around £305.

  • 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

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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 13 June 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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£7Average£264FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
PLAYCheapest£259Average£409FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
TAP AIR PORTUGALCheapest£279Average£474FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
IcelandairCheapest£304Average£438FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Scandinavian AirlinesCheapest£305Average£485FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
LufthansaCheapest£309Average£430FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air FranceCheapest£336Average£422FlexibilityNo cancel feeOn-time77%
Search Air France flights
United AirlinesCheapest£336Average£398FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AtlanticCheapest£336Average£446FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapest£336Average£402FlexibilityNo cancel feeOn-time75%
Search KLM 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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