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$354+ Cheap flights from London (LON) to Boston (BOS)

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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
LON — BOS
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
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3. Compare prices and book
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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 Tuesday or Wednesday 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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$468
(Mytrip)

One-way from

$354
(PLAY)

Popular in

August

Cheapest in

September

Average price

$556

Good round-trip deal

$652 or less

Good one-way deal

$591 or less
Provider with most accurate pricing for London (LON)-Boston Logan Intl flight deals.
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Provider most trusted by Cheapflights users for London (LON)-Boston Logan Intl flights.
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From London (LON) to Boston Logan Intl
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One-way flight from London (LON) to Boston Logan Intl
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Highest demand for flights based on searches. 11% potential increase in price ($80 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 28, 2025.

This Mytrip deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/198:00 amSTN - BOS
2 stops14h 50mMultiple Airlines
Fri 5/237:15 pmBOS - STN
2 stops17h 35mMultiple Airlines
Deal found 3/27$468
This Cheapflightsfares deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/59:50 amLHR - BOS
1 stop9h 50mBritish Airways
Tue 5/138:05 pmBOS - LHR
Nonstop6h 45mBritish Airways
Deal found 3/27$468
This The Travel House deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/13:40 pmLGW - BOS
1 stop11h 20mIcelandair
Thu 10/98:50 pmBOS - LGW
1 stop12h 50mIcelandair
Deal found 3/27$470
This Trip.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/911:40 amSTN - BOS
1 stop11h 10mPLAY
Fri 9/197:15 pmBOS - STN
1 stop10h 25mPLAY
Deal found 3/27$472
This Mytrip deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/216:40 amLHR - BOS
1 stop13h 55mScandinavian Airlines
Tue 8/265:40 pmBOS - LHR
1 stop19h 00mScandinavian Airlines
Deal found 3/27$472
This SmartFares deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2111:30 amLHR - BOS
1 stop13h 50mVirgin Atlantic
Mon 4/288:15 pmBOS - LHR
Nonstop6h 50mVirgin Atlantic
Deal found 3/27$474
This Ticket deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/59:55 amLHR - BOS
1 stop11h 30mKLM
Mon 5/128:45 pmBOS - LHR
1 stop9h 40mKLM
Deal found 3/27$477
This Mytrip deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/118:55 amLGW - BOS
2 stops13h 55mMultiple Airlines
Sun 5/187:15 pmBOS - LGW
2 stops20h 40mMultiple Airlines
Deal found 3/27$481
This Delta deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/219:55 amLHR - BOS
1 stop11h 30mDelta
Mon 4/285:15 pmBOS - LHR
1 stop11h 45mDelta
Deal found 3/27$483
This Mytrip deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/229:25 pmLHR - BOS
1 stop19h 10mIcelandair
Sat 4/268:50 pmBOS - LHR
1 stop18h 30mIcelandair
Deal found 3/27$485
This American Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/53:05 pmLGW - BOS
1 stop12h 44mAmerican Airlines
Tue 5/131:20 pmBOS - LGW
1 stop13h 50mAmerican Airlines
Deal found 3/27$488
This Flightnetwork deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/59:55 amLCY - BOS
1 stop10h 45mMultiple Airlines
Mon 5/129:40 pmBOS - LCY
1 stop9h 50mMultiple Airlines
Deal found 3/27$490

Cheapflights Fare Finder

Customize 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 2,558,603 searches. Data last updated March 28, 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

Mon 5/19

8:00 am-5:50 pm

2 stops14h 50m

Boston Logan Intl

Fri 5/23

7:15 pm-5:50 pm

2 stops17h 35m

$468

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 5/5

9:55 am-4:25 pm

1 stop11h 30m

Boston Logan Intl

Mon 5/12

7:05 pm-6:45 am

Nonstop6h 40m

$468

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 5/5

9:50 am-2:40 pm

1 stop9h 50m

Boston Logan Intl

Thu 5/15

7:40 pm-7:20 am

Nonstop6h 40m

$471

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Tue 4/29

2:00 pm-9:00 am

1 stop24h 00m

Boston Logan Intl

Fri 5/16

5:45 am-10:00 am

1 stop23h 15m

$471

LondonBoston

STN - BOS

STNBOS

London Stansted

Tue 9/9

11:40 am-5:50 pm

1 stop11h 10m

Boston Logan Intl

Fri 9/19

7:15 pm-10:40 am

1 stop10h 25m

$472

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Thu 8/21

6:40 am-3:35 pm

1 stop13h 55m

Boston Logan Intl

Tue 8/26

5:40 pm-5:40 pm

1 stop19h 00m

$472

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 4/21

11:30 am-8:20 pm

1 stop13h 50m

Boston Logan Intl

Mon 4/28

8:15 pm-8:05 am

Nonstop6h 50m

$474

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Sat 5/17

3:40 pm-11:35 am

1 stop24h 55m

Boston Logan Intl

Wed 6/4

12:35 pm-11:45 am

1 stop18h 10m

$479

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 4/21

9:55 am-4:25 pm

1 stop11h 30m

Boston Logan Intl

Mon 4/28

5:15 pm-10:00 am

1 stop11h 45m

$483

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 4/22

9:25 pm-11:35 am

1 stop19h 10m

Boston Logan Intl

Sat 4/26

8:50 pm-8:20 pm

1 stop18h 30m

$485

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 59 results
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Compare providers for flights from London to Boston

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from London to Boston in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
Thrive TravelPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London-Boston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London-Boston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London-Boston flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London-Boston flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London-Boston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for London to Boston flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your London to Boston trip
Airlines
British Airways

BA's Club Suite offers private pods with doors, ideal for long-haul comfort.


BA's World Traveller Plus offers extra seat width and legroom, enhancing comfort.

Read more about British Airwaysby Gabriel Leigh
Virgin Atlantic

Virgin's Upper Class features lie-flat beds and a four-course meal for premium comfort.


Virgin's Economy Delight offers extra legroom and priority boarding, ideal for taller travelers.

Read more about Virgin Atlanticby Blane Bachelor
Airports
LHR

Heathrow's strict security can delay you. Ensure liquids are in one bag and remove suspicious items to avoid manual screening delays.

Read more about LHRby Ramsey Qubein
BOS

BOS offers easy access to downtown Boston via rideshares, public transit, and even a scenic water taxi service.

Read more about BOSby Paul Rubio
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on British Airways

Gabriel Leigh

Gabriel Leigh

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more
Blane Bachelor

Blane Bachelor

Expert on Virgin Atlantic

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on LHR

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Paul Rubio

Paul Rubio

Expert on BOS

Paul Rubio

Paul Rubio

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Read more

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 round-trip 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 round-trip flight from London to Boston. Price data was last updated on March 21, 2025.

Booking 29 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Boston. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 $218). Flying from London to Boston in July is currently the most expensive (average of $311). 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 March 28, 2025.

One of the essential ways to save on airfare from London to Boston is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 18% on airfare.

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

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

Travelers seeking maximum savings on their London to Boston flight should consider departing on Saturday 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.

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 3.1 - 4.0 inches per month. March is typically the wettest month, when rainfall can reach 4.0 in. July is typically the driest time to visit Boston when rainfall is around 3.1 in.

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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 March 28, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Finnair from London to Boston to help guide your decision. 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
7,896 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

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
Delta
8.0
Very good
7,896 reviews
Delta
8.0
Very good
7,896 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

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
KLM
7.8
Good
1,321 reviews
Delta
8.0
Very good
7,896 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

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
Finnair
7.6
Good
1,267 reviews
Delta
8.0
Very good
7,896 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

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
Austrian Airlines
7.5
Good
769 reviews
Delta
8.0
Very good
7,896 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

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
SWISS
7.5
Good
1,570 reviews
Delta
8.0
Very good
7,896 reviews

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Comfort

8.0

Overall

8.0

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?

    Most people fly into Boston Logan Intl (BOS) if they book a flight to Boston from London. On average, Logan Intl has 16 inbound flights from London per day from 14 airlines. Boston Logan Intl is conveniently located just 2.6 mi from Boston’s city center.

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

    Our cheapest airline available from London to Boston is British Airways. Our recent data shows that you can find tickets from as low as $468 on this airline. Additional options worth looking into are PLAY and Virgin Atlantic, starting at $472 and $474 round-trip. Users have found that British Airways is 25% cheaper than the other options available to this destination.

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

    The cheapest airlines for a one-way flight from London to Boston are PLAY ($354), Vueling ($363), and TAP AIR PORTUGAL ($379).

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

    While some choose either London Gatwick - Boston Logan Intl or London City - Boston Logan Intl, London Heathrow - Boston Logan Intl is the most popular route from London to Boston.

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

    No one likes to see their flight delayed. When booking a flight from London to Boston consider choosing Malaysia Airlines (96%), Gulf Air (93%) or JetBlue (90%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from London to Boston?

    While on average a flight from London to Boston is generally $1,459, our data shows the cheapest flight currently is $543. When looking at the most popular route, (London Heathrow - Boston Logan Intl), you can expect to pay $394 for that flight.

  • 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 vacation 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 $218). Flying from London to Boston in July is currently the most expensive (average of $311). 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

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Warwick
Marlborough
Waltham
Cambridge
Framingham
Chestnut Hill
Seekonk
Randolph
Brockton
Lowell
West Yarmouth
Woburn
Somerville
Saco
Burlington
Smithfield
Salem
Chelsea
Seabrook
Brookline

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Alternative routes for London to Boston

See prices for flight routes from nearby airports that may be better suited for you.
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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 2,558,603 searches. Data last updated March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$341Average$535FlexibilityNo cancel feeOn-time77%
FinnairCheapest$355Average$617FlexibilityNo cancel feeOn-time76%
PLAYCheapest$375Average$477FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$414Average$590FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$418Average$558FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$420Average$816FlexibilityNo cancel feeOn-time62%
IberiaCheapest$481Average$637FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$492Average$664FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$492Average$631FlexibilityNo cancel feeOn-time71%
Air FranceCheapest$497Average$888FlexibilityNo cancel feeOn-time77%
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