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Cheap flights from London to Boston from £314

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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
LON — BOS
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London to Boston Logan Intl are usually found in September or February, booked 79 days in advance, depart on a Wednesday or Thursday and return on a Monday

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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 14 November 2025.

Thu 4/1210:40LGW - BOS
1 stop14h 30mTAP AIR PORTUGAL
Thu 11/1222:45BOS - LGW
1 stop12h 05mTAP AIR PORTUGAL
Deal found 13/11£350
Sat 6/1212:25LHR - BOS
1 stop12h 45mTAP AIR PORTUGAL
Sat 31/118:05BOS - LHR
1 stop13h 35mTAP AIR PORTUGAL
Deal found 13/11£353
Fri 5/1221:25LGW - BOS
2 stops22h 10mTAP AIR PORTUGAL
Sun 7/1218:05BOS - LGW
2 stops21h 30mTAP AIR PORTUGAL
Deal found 12/11£353
Sun 14/1206:00LHR - BOS
1 stop19h 10mTAP AIR PORTUGAL
Tue 13/118:05BOS - LHR
1 stop18h 25mTAP AIR PORTUGAL
Deal found 13/11£356
Thu 11/1208:15LHR - BOS
1 stop16h 55mTAP AIR PORTUGAL
Thu 8/122:45BOS - LHR
1 stop17h 50mTAP AIR PORTUGAL
Deal found 12/11£357
Mon 8/1220:35LHR - BOS
1 stop26h 15mIcelandair
Mon 15/1219:50BOS - LHR
1 stop10h 00mIcelandair
Deal found 12/11£359
Wed 3/1206:30STN - BOS
2 stops16h 20mMultiple Airlines
Wed 10/1219:50BOS - STN
2 stops17h 00mMultiple Airlines
Deal found 12/11£360
Wed 3/1206:50LTN - BOS
2 stops16h 00mMultiple Airlines
Wed 10/1219:50BOS - LTN
2 stops22h 15mMultiple Airlines
Deal found 12/11£360
Thu 4/1210:10LGW - BOS
2 stops15h 00mTAP AIR PORTUGAL
Sun 7/1218:05BOS - LGW
2 stops21h 30mTAP AIR PORTUGAL
Deal found 13/11£361
Tue 25/1111:55LGW - BOS
1 stop27h 40mIcelandair
Thu 4/1211:35BOS - LGW
1 stop18h 20mIcelandair
Deal found 13/11£363
Fri 12/1212:25LHR - BOS
1 stop12h 45mTAP AIR PORTUGAL
Thu 8/122:45BOS - LHR
1 stop17h 50mTAP AIR PORTUGAL
Deal found 13/11£364
Wed 26/1111:55LGW - BOS
1 stop10h 55mIcelandair
Sat 29/1111:35BOS - LGW
1 stop18h 20mIcelandair
Deal found 13/11£365

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 14 November 2025.

Round-trip from

£350

One-way from

£314

Popular in

December

Cheapest in

September

Average price

£444

Good round-trip deal

£482 or less

Good one-way deal

£367 or less
TAP AIR PORTUGAL
  • TAP AIR PORTUGAL
  • 19/3-23/3
  • 2 total stops
  • 25h 15m total
  • London to Boston
Search Deals
11/5
  • 11/5
  • 2 total stops
  • 20h 54m total
  • London to Boston
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£16 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from London (LON) to Boston Logan Intl.
Search Deals
Price to beat on a one-way flight from London (LON) to Boston Logan Intl.
Search Deals

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 14 November 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

LGW - BOS

LGWBOS

London Gatwick

Thu 19/3

10:40-21:10

1 stop14h 30m

Boston Logan Intl

Mon 23/3

19:05-09:50

1 stop10h 45m

£350

LondonBoston

LTN - BOS

LTNBOS

London Luton

Wed 3/12

06:50-17:50

2 stops16h 00m

Boston Logan Intl

Wed 10/12

19:50-23:05

2 stops22h 15m

£360

LondonBoston

STN - BOS

STNBOS

London Stansted

Wed 3/12

06:30-17:50

2 stops16h 20m

Boston Logan Intl

Wed 10/12

19:50-21:05

2 stops20h 15m

£361

LondonBoston

STN - BOS

STNBOS

London Stansted

Wed 3/12

06:30-17:50

2 stops16h 20m

Boston Logan Intl

Mon 8/12

19:50-21:20

2 stops20h 30m

£372

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Sun 23/11

11:55-17:50

1 stop10h 55m

Boston Logan Intl

Sat 6/12

19:50-10:55

1 stop10h 05m

£390

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 29/1

21:05-15:50

2 stops23h 45m

Boston Logan Intl

Tue 3/2

17:35-16:25

2 stops17h 50m

£401

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 10/12

12:15-17:50

1 stop10h 35m

Boston Logan Intl

Tue 6/1

19:50-19:30

1 stop18h 40m

£405

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Mon 8/12

11:55-17:50

1 stop10h 55m

Boston Logan Intl

Mon 15/12

19:50-10:55

1 stop10h 05m

£414

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Mon 8/12

11:55-17:50

1 stop10h 55m

Boston Logan Intl

Sun 14/12

19:50-10:55

1 stop10h 05m

£414

LondonBoston

STN - BOS

STNBOS

London Stansted

Mon 8/12

08:30-18:55

1 stop15h 25m

Boston Logan Intl

Mon 15/12

21:20-14:20

1 stop12h 00m

£423

Flights are sorted by cheapest return flights first.

Deals found on 12/11

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 7 November 2025.

The best time to book flights from London to Boston is 79 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, January is the cheapest month in which you can book a flight from London to Boston (average of £125). Flying from London to Boston in August is currently the most expensive (average of £369). 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 14 November 2025.

It’s optimal to fly from London to Boston at midday. By choosing this option you can save up to 20% on the cost of your flight, compared to a flight in the morning.

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 mornings when fares are most often at their lowest. Wednesday 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 14 November 2025.

The most flights from LON to BOS are scheduled on a Wednesday (36 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (25 on average).

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

What’s the top stopover airport for flights from London to Boston?

Share of one-stop return flights from London to Boston chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Reykjavik (KEF) – chosen by Cheapflights users on 64% of one-stop itineraries from London to Boston on Cheapflights.

What’s the cheapest stopover airport for flights from London to Boston?

Average return fare for one-stop flights from London to Boston, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Barcelona (BCN) is the most affordable one-stop option, with an average return flight price of £278.

What’s the fastest stopover option from London to Boston?

Shortest average travel time for one-stop one-way flights from London to Boston, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Dublin (DUB) have the shortest average one-way travel time for one-stop routes: 10h 21m.

Which airport typically offers the quickest stopover for flights from London to Boston?

Average stopover duration for one-stop one-way flights from London 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 13m.

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 November 2025.
See what other customers who have flown with KLM, Virgin Atlantic, andIcelandair 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.
KLM
7.7
Good
1,411 reviews
Check prices

Crew

8.4

Comfort

7.7

Entertainment

7.1

Food

7.3

Overall

7.7

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,411 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Crew

8.4

Comfort

7.7

Entertainment

7.1

Food

7.3

Overall

7.7

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Virgin Atlantic
7.5
Good
673 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Crew

8.4

Comfort

7.7

Entertainment

7.1

Food

7.3

Overall

7.7

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Icelandair
7.1
Good
578 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Crew

8.4

Comfort

7.7

Entertainment

7.1

Food

7.3

Overall

7.7

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
PLAY
7.0
Good
KLM
7.7
Good
1,411 reviews
Check prices

Crew

8.4

Comfort

7.7

Entertainment

7.1

Food

7.3

Overall

7.7

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
British Airways
6.7
Okay
7,521 reviews
KLM
7.7
Good
1,411 reviews
Check prices

Crew

8.4

Comfort

7.7

Entertainment

7.1

Food

7.3

Overall

7.7

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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 30 inbound flights from London per day.

  • How long is the flight from London to Boston?

    There are many flights that can get you from London to Boston in 10h 55m. Fly via TAP AIR PORTUGAL, Icelandair, or Scandinavian Airlines to get the fastest option. There are 3272 mi between London and Boston. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    According to our current data, PLAY (£273), TAP AIR PORTUGAL (£288), and Scandinavian Airlines (£305) offers the cheapest pricing from London to Boston. Users have found that PLAY is 41% 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 £315 on LEVEL. Other airlines that offer cheap prices include British Airways from £317 and SWISS from £326 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 Gulf Air (92%), KLM (92%) and Scandinavian Airlines (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 £1,505, our data indicates the cheapest price to be £310. The most popular route (London Heathrow - Boston Logan Intl), is priced around £280.

  • 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, January is the cheapest month in which you can book a flight from London to Boston (average of £125). Flying from London to Boston in August is currently the most expensive (average of £369). 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
Cambridge
Peabody
Somerville
Quincy
Waltham
Chelmsford

Browse thousands of different options on Cheapflights for your next trip

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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 14 November 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 14 November 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest£273Average£392FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
TAP AIR PORTUGALCheapest£288Average£449FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Scandinavian AirlinesCheapest£305Average£457FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
LufthansaCheapest£309Average£411FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IcelandairCheapest£310Average£452FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
JetBlueCheapest£336Average£499FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
United AirlinesCheapest£340Average£392FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£344Average£443FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Air CanadaCheapest£348Average£496FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapest£357Average£563FlexibilityNo cancel feeOn-timeN/A
Search Delta 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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