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$466+ 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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
LON — BOS
May 22 — May 291
Fri 5/22
Fri 5/29
1 adult, Economy
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1. Tell us where you want to go

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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 Tuesday and return on a Wednesday

Cheap 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 April 22, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/188:50 pm
STN
-
BOS
1 stop29h 15m
Multiple Airlines
Mon 5/258:25 pm
BOS
-
STN
2 stops22h 55m
Multiple Airlines
Deal found 4/17$551
This LEVEL deal was found by Cheapflights users on 4/20. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/188:50 pm
LHR
-
BOS
1 stop29h 15m
LEVEL
Tue 5/2610:50 pm
BOS
-
LHR
1 stop29h 20m
LEVEL
Deal found 4/20$553
This oojo deal was found by Cheapflights users on 4/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/281:00 pm
LGW
-
BOS
1 stop13h 45m
Icelandair
Tue 6/211:00 pm
BOS
-
LGW
1 stop10h 40m
Icelandair
Deal found 4/19$553
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/188:50 pm
STN
-
BOS
1 stop29h 15m
Multiple Airlines
Tue 5/264:35 pm
BOS
-
STN
2 stops14h 10m
Multiple Airlines
Deal found 4/20$554
This LEVEL deal was found by Cheapflights users on 4/19. 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 LEVEL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/198:50 pm
LHR
-
BOS
1 stop29h 15m
LEVEL
Wed 7/811:00 pm
BOS
-
LHR
1 stop16h 05m
LEVEL
Deal found 4/19$555
This deal was found by Cheapflights users on 4/21. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/31:00 pm
LGW
-
BOS
1 stop10h 50m
Icelandair
Mon 5/188:50 pm
BOS
-
LGW
1 stop12h 50m
Icelandair
Deal found 4/21$557
This Mytrip deal was found by Cheapflights users on 4/19. 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 5/197:10 am
STN
-
BOS
2 stops16h 40m
Multiple Airlines
Tue 5/268:50 pm
BOS
-
STN
2 stops22h 20m
Multiple Airlines
Deal found 4/19$558
This deal was found by Cheapflights users on 4/19. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/163:40 pm
LGW
-
BOS
1 stop11h 05m
Icelandair
Sun 5/2411:00 pm
BOS
-
LGW
1 stop10h 40m
Icelandair
Deal found 4/19$558
This deal was found by Cheapflights users on 4/19. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/163:40 pm
LGW
-
BOS
1 stop11h 05m
Icelandair
Mon 5/2511:00 pm
BOS
-
LGW
1 stop10h 40m
Icelandair
Deal found 4/19$559
This deal was found by Cheapflights users on 4/17. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/292:30 pm
LHR
-
BOS
Nonstop7h 25m
British Airways
Tue 6/29:50 pm
BOS
-
LHR
Nonstop6h 45m
British Airways
Deal found 4/17$560
This deal was found by Cheapflights users on 4/17. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/308:10 pm
LHR
-
BOS
Nonstop7h 25m
British Airways
Tue 6/29:50 pm
BOS
-
LHR
Nonstop6h 45m
British Airways
Deal found 4/17$561
This oojo deal was found by Cheapflights users on 4/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/273:40 pm
LGW
-
BOS
1 stop32h 10m
Icelandair
Tue 6/211:00 pm
BOS
-
LGW
1 stop10h 40m
Icelandair
Deal found 4/20$561

Find 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 April 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$553
(LEVEL)

One-way from

$466
(Booking.com)

Popular in

July

Cheapest in

September

Average price

$666

Good round-trip deal

$728 or less

Good one-way deal

$494 or less
Provider with most accurate pricing for London (LON)-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for London (LON)-Boston Logan Intl flights.
Search Deals
From London (LON) to Boston Logan Intl
Search Deals
One-way flight from London (LON) to Boston Logan Intl
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($70 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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

 
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 April 22, 2026.
Use the filters below to find and compare flights from London to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Thu 9/17

10:55 am-9:15 pm

1 stop15h 20m

Boston Logan Intl

Thu 9/24

11:00 pm-8:15 pm

1 stop16h 15m

$565

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 7/1

9:55 am-9:15 pm

1 stop16h 20m

Boston Logan Intl

Wed 7/8

11:00 pm-8:05 pm

1 stop16h 05m

$605

LondonBoston

LTN - BOS

LTNBOS

London Luton

Thu 5/7

9:25 am-6:50 pm

2 stops14h 25m

Boston Logan Intl

Sun 5/10

8:50 pm-9:40 pm

2 stops19h 50m

$611

LondonBoston

LTN - BOS

LTNBOS

London Luton

Tue 6/2

1:10 pm-10:00 pm

1 stop13h 50m

Boston Logan Intl

Sat 6/6

5:25 pm-8:20 am

1 stop9h 55m

$619

LondonBoston

LTN - BOS

LTNBOS

London Luton

Mon 5/18

6:05 pm-2:45 pm

2 stops25h 40m

Boston Logan Intl

Tue 5/26

4:45 pm-2:50 pm

2 stops17h 05m

$621

LondonBoston

LTN - BOS

LTNBOS

London Luton

Wed 7/8

5:40 am-9:15 pm

1 stop20h 35m

Boston Logan Intl

Wed 7/15

11:00 pm-6:05 pm

1 stop14h 05m

$628

LondonBoston

LGW - BOS

LGWBOS

London Gatwick

Sun 9/6

3:40 pm-6:50 pm

1 stop32h 10m

Boston Logan Intl

Thu 9/10

8:50 pm-2:40 pm

1 stop12h 50m

$634

LondonBoston

LTN - BOS

LTNBOS

London Luton

Sun 9/6

1:25 pm-10:05 pm

1 stop13h 40m

Boston Logan Intl

Thu 9/10

11:00 pm-11:00 pm

1 stop19h 00m

$679

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 5/27

9:55 am-6:30 pm

1 stop13h 35m

Boston Logan Intl

Tue 6/2

11:10 pm-10:40 am

Nonstop6h 30m

$709

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 10/19

7:05 am-3:35 pm

2 stops13h 30m

Boston Logan Intl

Mon 10/26

6:35 pm-5:40 pm

1 stop19h 05m

$710

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/18

Showing 1-10 of 60 resultsSorted by cheapest first
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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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Super.comPrice Accuracy-Trust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 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.

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 April 17, 2026.

Booking 79 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, September is the cheapest month in which you can book a flight from London to Boston (average of $537). Flying from London to Boston in January is currently the most expensive (average of $802). 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 April 22, 2026.

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 at noon 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 April 18, 2026.

Travelers seeking maximum savings on their London to Boston flight should consider departing on Wednesday evenings 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 April 22, 2026.

The most flights from LON to BOS are scheduled on a Monday (30 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 to fly round-trip from London to Boston?

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

Share of 1-stop round-trip flights from London to Boston chosen by Cheapflights users in the past 12 months, using the same layover each way.

Reykjavik (KEF) – chosen by Cheapflights users on 50% of 1-stop itineraries from London to Boston on Cheapflights.

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

Average round-trip fare for 1-stop flights from London to Boston, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Reykjavik (KEF) is the most affordable 1-stop option, with an average round-trip price of $401.

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

Shortest average travel time for 1-stop one-way flights from London to Boston, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Reykjavik (KEF) have the shortest average one-way travel time for 1-stop routes: 10h 35m.

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

Average layover duration for 1-stop one-way flights from London to Boston, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Madrid (MAD) offer the fastest connection on this route, with an average layover time of 1h 13m.

How often are flights from London to Boston delayed?

About 8% of weekly flights between London and Boston have experienced delays in the past year, with the average delay time being 150 minutes.

What is the most punctual flight time for London to Boston flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on London to Boston flights?

Over the last year, Virgin Atlantic have had the lowest number of delays on this route, with just 4% of flights being delayed.

The best insider tips for London to Boston flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your London to Boston trip
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on British Airways

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 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

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

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

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 April 22, 2026.
Get a feel of what it's like to fly with Delta,Virgin Atlantic, andJetBlue from London to Boston by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,433 reviews

Boarding

8.1

Entertainment

7.8

Crew

8.5

Overall

7.9

Food

7.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,433 reviews
Delta
7.9
Good
8,433 reviews

Boarding

8.1

Entertainment

7.8

Crew

8.5

Overall

7.9

Food

7.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Virgin Atlantic
7.5
Good
687 reviews
Delta
7.9
Good
8,433 reviews

Boarding

8.1

Entertainment

7.8

Crew

8.5

Overall

7.9

Food

7.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
JetBlue
7.2
Good
2,951 reviews
Delta
7.9
Good
8,433 reviews

Boarding

8.1

Entertainment

7.8

Crew

8.5

Overall

7.9

Food

7.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.1
Good
11,651 reviews
Delta
7.9
Good
8,433 reviews

Boarding

8.1

Entertainment

7.8

Crew

8.5

Overall

7.9

Food

7.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,906 reviews
Delta
7.9
Good
8,433 reviews

Boarding

8.1

Entertainment

7.8

Crew

8.5

Overall

7.9

Food

7.2

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 29 inbound flights from London per day from 10 airlines. Boston Logan Intl is conveniently located just 2.6 mi from Boston’s city center.

  • How long is the flight from London to Boston?

    There are many flights that can get you from London to Boston in 13h 35m. Fly via LEVEL, Icelandair, or Delta to get the fastest option. Airlines will cover a distance of 3254 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Our cheapest airline available from London to Boston is Finnair. Our recent data shows that you can find tickets from as low as $263 on this airline. Additional options worth looking into are Icelandair and Iberia, starting at $401 and $428 round-trip. Users have found that Finnair is 58% 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 TAP AIR PORTUGAL ($354), Icelandair ($390), and American Airlines ($411).

  • 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 KLM (81%), Gulf Air (80%) or Scandinavian Airlines (79%) 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 $1,549, our data shows the cheapest flight currently is $484. When looking at the most popular route, (London Heathrow - Boston Logan Intl), you can expect to pay $485 for that flight.

  • Where are the most common layover locations when flying from London to Boston?

    London to Boston flights have a layover in Dublin most often.

  • What are some popular things to do or see while on a layover in Dublin?

    Glasnevin Cemetery, Dublin Castle, and St. Patrick's Cathedral are currently the most popular points of interest in Dublin at the moment. Glasnevin Cemetery, Dublin Castle, and St. Patrick's Cathedral can be visited by traveling about 3.9 mi, 5.8 mi, and 6.1 mi respectively from Dublin. Those landing in Dublin looking to spend some time exploring during their layover can rent a car for about $23 per day.

  • Where are the least popular layover locations for London to Boston flights?

    London to Boston flights have a layover in Reykjavik least often.

  • 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, September is the cheapest month in which you can book a flight from London to Boston (average of $537). Flying from London to Boston in January is currently the most expensive (average of $802). 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 Boston?

Book flights to Boston if you plan to visit one of these locations
Medford
Cambridge
Concord
Hampton Beach
Watertown
Brockton
Seekonk
Cranston
Chelsea
Warwick
Peabody
Seabrook
York Beach
Londonderry
Swansea
Old Orchard Beach
Quincy
Waltham
Lowell
Braintree

Browse thousands of different options on Cheapflights for your next trip

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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 April 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest$263Average$584FlexibilityNo cancel feeOn-time76%
IcelandairCheapest$401Average$604FlexibilityNo cancel feeOn-time76%
IberiaCheapest$428Average$643FlexibilityNo cancel feeOn-time77%
JetBlueCheapest$438Average$831FlexibilityNo cancel feeOn-time62%
British AirwaysCheapest$481Average$658FlexibilityNo cancel feeOn-time70%
DeltaCheapest$481Average$753FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$486Average$780FlexibilityNo cancel feeOn-time71%
KLMCheapest$517Average$726FlexibilityNo cancel feeOn-time75%
Virgin AtlanticCheapest$592Average$792FlexibilityNo cancel feeOn-time72%
Air FranceCheapest$601Average$736FlexibilityNo cancel feeOn-time77%

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