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$368+ Cheap flights from Heathrow (LHR) 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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BOS
Mar 26 — Apr 21
Wed 3/26
Wed 4/2
1 adult, Economy
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Find cheap flights from Heathrow to Boston with Cheapflights

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 Heathrow to Boston Logan Intl are usually found in February or September, booked 65 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Heathrow to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) 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 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$460
(oojo)

One-way from

$368
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$579

Good round-trip deal

$636 or less

Good one-way deal

$598 or less
Provider with most accurate pricing for London Heathrow-Boston Logan Intl flight deals.
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Provider most trusted by Cheapflights users for London Heathrow-Boston Logan Intl flights.
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From London Heathrow to Boston Logan Intl
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One-way flight from London Heathrow to Boston Logan Intl
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Highest demand for flights based on searches. 17% potential increase in price ($139 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($21 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 Heathrow to Boston Logan Intl.
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Price to beat on a one-way flight from London Heathrow to Boston Logan Intl.
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Find flight deals from Heathrow to Boston

Cheapest flights from Heathrow to Boston
Explore the most affordable flight options available from Heathrow to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 21, 2025.

This oojo deal was found by Cheapflights users on 3/20. 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.
Sun 4/209:25 pmLHR - BOS
1 stop29h 35mIcelandair
Sun 4/278:50 pmBOS - LHR
1 stop10h 05mIcelandair
Deal found 3/20$460
This Mytrip deal was found by Cheapflights users on 3/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/510:50 amLHR - BOS
1 stop11h 50mMultiple Airlines
Mon 5/129:40 pmBOS - LHR
1 stop10h 20mMultiple Airlines
Deal found 3/20$471
This oojo deal was found by Cheapflights users on 3/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/317:30 pmLHR - BOS
1 stop25h 05mScandinavian Airlines
Mon 4/75:40 pmBOS - LHR
1 stop10h 40mScandinavian Airlines
Deal found 3/21$477
This Ticket deal was found by Cheapflights users on 3/20. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/219:00 amLHR - BOS
1 stop16h 20mVirgin Atlantic
Mon 4/287:00 pmBOS - LHR
Nonstop6h 45mVirgin Atlantic
Deal found 3/20$483
This Mytrip deal was found by Cheapflights users on 3/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/48:25 pmLHR - BOS
1 stop26h 15mLufthansa
Sun 5/118:05 pmBOS - LHR
1 stop16h 00mLufthansa
Deal found 3/20$487
This Expedia deal was found by Cheapflights users on 3/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/169:30 amLHR - BOS
1 stop10h 27mAir Canada
Thu 4/247:55 pmBOS - LHR
1 stop10h 55mAir Canada
Deal found 3/21$493
This United Airlines deal was found by Cheapflights users on 3/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/71:45 pmLHR - BOS
1 stop11h 10mUnited Airlines
Sun 5/1112:30 pmBOS - LHR
1 stop13h 25mUnited Airlines
Deal found 3/20$510
This TravelUp deal was found by Cheapflights users on 3/21. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/268:50 amLHR - BOS
Nonstop7h 45mKLM
Wed 4/27:00 pmBOS - LHR
Nonstop6h 45mKLM
Deal found 3/21$520
This Delta deal was found by Cheapflights users on 3/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/216:30 amLHR - BOS
1 stop12h 10mDelta
Mon 4/287:00 pmBOS - LHR
Nonstop6h 45mDelta
Deal found 3/21$542
This Austrian Airlines deal was found by Cheapflights users on 3/21. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/59:05 amLHR - BOS
2 stops37h 16mAustrian Airlines
Mon 5/1211:07 amBOS - LHR
1 stop13h 48mAustrian Airlines
Deal found 3/21$549
This Finnair deal was found by Cheapflights users on 3/21. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/218:10 pmLHR - BOS
Nonstop7h 25mFinnair
Mon 4/288:00 pmBOS - LHR
1 stop10h 05mFinnair
Deal found 3/21$555
This TravelUp deal was found by Cheapflights users on 3/21. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/298:10 pmLHR - BOS
Nonstop7h 25mBritish Airways
Thu 6/58:05 pmBOS - LHR
Nonstop6h 45mBritish Airways
Deal found 3/21$561

Cheapflights Fare Finder

Customize your flight search to find flights from Heathrow 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 21, 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Boston that are best for you.

Fly from

Heathrow

Fly to

Boston

Route

Depart

Return

Price

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sun 4/20

9:25 pm-10:00 pm

1 stop29h 35m

Boston Logan Intl

Sun 4/27

8:50 pm-11:55 am

1 stop10h 05m

$460

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 5/5

10:50 am-5:40 pm

1 stop11h 50m

Boston Logan Intl

Mon 5/12

9:40 pm-1:00 pm

1 stop10h 20m

$471

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 3/31

7:30 pm-3:35 pm

1 stop25h 05m

Boston Logan Intl

Mon 4/7

5:40 pm-9:20 am

1 stop10h 40m

$477

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 4/21

9:00 am-8:20 pm

1 stop16h 20m

Boston Logan Intl

Mon 4/28

7:00 pm-6:45 am

Nonstop6h 45m

$483

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Sun 5/4

8:25 pm-5:40 pm

1 stop26h 15m

Boston Logan Intl

Sun 5/11

8:05 pm-5:05 pm

1 stop16h 00m

$487

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 4/16

9:30 am-2:57 pm

1 stop10h 27m

Boston Logan Intl

Thu 4/24

7:55 pm-11:50 am

1 stop10h 55m

$493

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Wed 5/7

1:45 pm-7:55 pm

1 stop11h 10m

Boston Logan Intl

Sun 5/11

12:30 pm-6:55 am

1 stop13h 25m

$510

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Tue 4/29

8:55 am-11:10 am

Nonstop7h 15m

Boston Logan Intl

Tue 5/13

8:05 pm-7:50 am

Nonstop6h 45m

$540

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 4/21

6:30 am-1:40 pm

1 stop12h 10m

Boston Logan Intl

Mon 4/28

7:00 pm-6:45 am

Nonstop6h 45m

$542

LondonBoston

LHR - BOS

LHRBOS

London Heathrow

Mon 5/5

9:05 am-5:21 pm

2 stops37h 16m

Boston Logan Intl

Mon 5/12

11:07 am-5:55 am

1 stop13h 48m

$549

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/21

Showing 1-10 of 25 results
1
2
3

Compare providers for flights from Heathrow 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 Heathrow to Boston in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
MytripPrice Accuracy3 starsTrust Score*3 stars
OneTravelPrice Accuracy2 starsTrust Score*3 stars
FlightnetworkPrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
oojoPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice 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 Heathrow Airport-Boston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-Boston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Boston flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-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 Heathrow Airport-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 Heathrow Airport 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 Heathrow Airport to Boston trip
Airlines
British Airways

World Traveller Plus offers extra seat width and legroom, ideal for more comfort.


Club Suite features solo pods with a door for privacy, available on most 777s and A350s.

Read more about British Airwaysby Gabriel Leigh
Virgin Atlantic

Economy Delight offers extra legroom, priority boarding, and a checked bag included.


Upper Class provides lie-flat beds and a four-course meal for a premium experience.

Read more about Virgin Atlanticby Blane Bachelor
Airports
LHR

Heathrow's strict security means long lines. Ensure liquids are in one small bag to avoid delays.

Read more about LHRby Ramsey Qubein
BOS

BOS offers easy access to downtown Boston via rideshares, public transit, and a unique 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 Heathrow to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Heathrow 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 Heathrow Airport to Boston

How far ahead should I book a flight from London Heathrow Airport to Boston?

Use this chart to determine the optimal time to book a round-trip flight from Heathrow to Boston. Price data was last updated on March 14, 2025.

Booking 65 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport 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 Heathrow Airport to Boston?

Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Boston (average of $218). Flying from London Heathrow Airport 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 LHR to BOS?

Find hourly flight availability from Heathrow 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 21, 2025.

One of the essential ways to save on airfare from London Heathrow Airport 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 17% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Heathrow to Boston. Price data was last updated on March 16, 2025.

Travelers seeking maximum savings on their London Heathrow Airport 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.

Weekly flight availability from London Heathrow Airport to Boston

Explore weekly flight availability from Heathrow 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 March 21, 2025.

The most flights from LHR to BOS are scheduled on a Monday (32 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (25 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 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 21, 2025.
To help decide which airline to fly from London to Boston, see what other customers have to say about Delta, KLM and Finnair. 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
7,895 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

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
7,895 reviews
Delta
8.0
Very good
7,895 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

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
1,319 reviews
Delta
8.0
Very good
7,895 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

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
1,266 reviews
Delta
8.0
Very good
7,895 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

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
7.6
Good
768 reviews
Delta
8.0
Very good
7,895 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

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
1,567 reviews
Delta
8.0
Very good
7,895 reviews

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

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 Heathrow 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 Heathrow?

    Boston Logan Intl (BOS), located 2.6 mi from the city center, is the airport you fly into when you book flights from London Heathrow to Boston. 13 airlines have flights to Logan Intl from London Heathrow on a regular basis. Booking flights from London Heathrow to Boston Logan Intl should not be difficult; the airport handles an average of 31 inbound flights from London Heathrow per day.

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

    According to our current data, Icelandair ($460), Virgin Atlantic ($483), and Lufthansa ($487) offers the cheapest pricing from London Heathrow Airport to Boston. Icelandair is currently priced 28% below the average price you’ll pay for this route.

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

    One-way options have recently been found by users for as low as $378 on Vueling. Other airlines that offer cheap prices include TAP AIR PORTUGAL from $411 and Aer Lingus from $490 one-way.

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

    Before booking your flight to Boston from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: Malaysia Airlines (96%), Gulf Air (93%), JetBlue( 90%).

  • What are the cheapest flights from London Heathrow Airport to Boston?

    The cheapest flight price from London Heathrow Airport to Boston is $533. On average you can expect to pay $1,895. The most popular route, (London Heathrow - Boston Logan Intl), can usually be booked for $455.

  • Can I find deals for flights from Heathrow to Boston that include hotel bookings?

    Yes. In addition to deals on Heathrow to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Boston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Boston.

  • Can I find deals for business class flights from Heathrow to Boston?

    Yes. Cheapflights offers flight deals from Heathrow 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 Heathrow Airport to Boston?

    Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to Boston (average of $218). Flying from London Heathrow Airport 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 Heathrow Airport?

Book flights to London Heathrow Airport 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 10 airlines flying from Heathrow to Boston

Discover the top 10 airlines that operate flights from Heathrow 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 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$341Average$535FlexibilityNo cancel feeOn-time77%
FinnairCheapest$355Average$617FlexibilityNo cancel feeOn-time76%
TAP AIR PORTUGALCheapest$418Average$558FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$454Average$481FlexibilityNo cancel feeOn-time76%
IberiaCheapest$481Average$644FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$491Average$663FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$492Average$634FlexibilityNo cancel feeOn-time71%
Air FranceCheapest$497Average$888FlexibilityNo cancel feeOn-time77%
KLMCheapest$501Average$592FlexibilityNo cancel feeOn-time75%
JetBlueCheapest$516Average$873FlexibilityNo cancel feeOn-time62%
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