BOS - LHR

£148 Find Cheap Flights from Boston to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Heathrow departing on 28/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to London.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to London.
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Flight Deals

Cheap Flights from Boston to Heathrow (BOS-LHR)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Boston to Heathrow that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Boston to Heathrow

Fri, 17 Oct - Sun, 19 Oct
 Logo
22:00 - 15:40BOS-LHR
12h 40m1 stop
 Logo
06:00 - 15:25LHR-BOS
14h 25m1 stop
Thu, 11 Dec - Sun, 14 Dec
Scandinavian Airlines Logo
17:35 - 16:25BOS-LHR
41h 50m2 stops
Scandinavian Airlines Logo
06:40 - 15:50LHR-BOS
14h 10m2 stops
£338Scandinavian Airlines
Find Deal
Tue, 14 Oct - Tue, 21 Oct
Lufthansa Logo
16:23 - 09:20BOS-LHR
11h 57m1 stop
Lufthansa Logo
13:45 - 19:55LHR-BOS
11h 10m1 stop
£339Lufthansa
Find Deal
Fri, 26 Sep - Sun, 28 Sep
Iberia Logo
23:00 - 20:05BOS-LHR
16h 05m1 stop
Iberia Logo
17:00 - 22:50LHR-BOS
10h 50m1 stop
£340Iberia
Find Deal
Wed, 22 Oct - Sat, 25 Oct
United Airlines Logo
21:40 - 11:25BOS-LHR
32h 45m1 stop
United Airlines Logo
09:30 - 21:25LHR-BOS
16h 55m1 stop
£342United Airlines
Find Deal
Sun, 28 Sep - Tue, 13 Jan
Aer Lingus Logo
18:35 - 09:05BOS-LHR
9h 30m1 stop
Aer Lingus Logo
10:00 - 16:50LHR-BOS
11h 50m1 stop
£343Aer Lingus
Find Deal
Fri, 26 Sep - Sun, 28 Sep
 Logo
22:00 - 16:40BOS-LHR
13h 40m1 stop
 Logo
10:25 - 13:50LHR-BOS
32h 25m1 stop
Wed, 1 Oct - Sun, 5 Oct
Virgin Atlantic Logo
22:45 - 10:30BOS-LHR
6h 45mdirect
Virgin Atlantic Logo
06:30 - 18:20LHR-BOS
16h 50m1 stop
£361Virgin Atlantic
Find Deal
Wed, 24 Sep - Fri, 3 Oct
Virgin Atlantic Logo
19:05 - 06:45BOS-LHR
6h 40mdirect
Virgin Atlantic Logo
12:45 - 15:40LHR-BOS
7h 55mdirect
£363Virgin Atlantic
Find Deal
Sun, 26 Oct - Sat, 8 Nov
JetBlue Logo
06:05 - 20:45BOS-LHR
10h 40m1 stop
JetBlue Logo
09:20 - 12:14LHR-BOS
7h 54mdirect
£375JetBlue
Find Deal
Expert advice

Expert advice for your flight from Boston to Heathrow

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-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.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Finnair

Finnair's A350 offers lower cabin altitude and higher humidity, enhancing passenger comfort.


Finnair's Economy Comfort offers extra legroom, enhancing comfort on long-haul flights.

Read more about Finnairby Gabriel Leigh
British Airways

BA's premium economy offers 18 cm extra legroom, ideal for long-haul comfort.


BA's Executive Club offers Avios rewards, ideal for frequent transatlantic travellers.

Virgin Atlantic

Virgin's Upper Class offers fully flat beds and exclusive lounge access for a luxurious experience.


Virgin's Economy Delight offers extra legroom and priority boarding, enhancing your travel experience.

Iberia

Iberia's Business class offers all-aisle access and quality Spanish cuisine on long-haul flights.


Iberia's Premium Economy offers wider seats and adjustable headrests for enhanced comfort.

Read more about Iberiaby Marisa Garcia
KLM

KLM's Premium Comfort offers 20 cm recline and SkyPriority, perfect for long-haul flights.


KLM's World Business Class offers lay-flat seats and direct aisle access for ultimate comfort.

Read more about KLMby Blane Bachelor
Air France

Enjoy complimentary champagne in all cabins, enhancing your long-haul flight experience.


Air France's Premium cabin offers SkyPriority benefits, enhancing your long-haul journey with comfort and convenience.

Airports
BOS

Download the FlyLogan app for gate info, flight status, and order ahead options at BOS restaurants.

Read more about BOSby Blane Bachelor
LHR

Take the Heathrow Express for a quick 15-minute ride to London Paddington. Buy tickets in advance for the best rate.

Read more about LHRby Kirstie Pickering
Our travel experts
Gabriel Leigh

Gabriel Leigh

Expert on Finnair

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
Duncan Madden

Duncan Madden

Expert on British Airways

Duncan Madden

Duncan Madden

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Read more
Laura Ratliff

Laura Ratliff

Expert on Virgin Atlantic

Laura Ratliff

Laura Ratliff

Laura Ratliff is a New York-based writer and editor. She lives in downtown Brooklyn with her husband and their beloved dogs. Originally from Texas, she now considers New York City her home. She typically spends more than 200,000 miles on a plane each year and stays in plenty of hotels.

Read more
Marisa Garcia

Marisa Garcia

Expert on Iberia

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialising in airline interiors and regulations. 10 years ago, she pivoted to journalism. She shares her insights in leading aviation, travel and business publications and on her site, FlightChic.

Read more
Blane Bachelor

Blane Bachelor

Expert on KLM, Air France and BOS

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specialising 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 favourite 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.

Read more
Kirstie Pickering

Kirstie Pickering

Expert on LHR

Kirstie Pickering

Kirstie Pickering

Aviation and business journalist Kirstie didn’t leave England until she was 18 years old, but has since travelled to over 20 countries including Japan, Canada, and Iceland. Her travel expertise lies in European city breaks, including how to find the best locally-owned hotels and restaurants and how to optimise the airport experience for your needs.

Read more
Booking Insights

KAYAK's insights & trends for Boston to Heathrow flights

Get data-powered insights and trends into flights from Boston to Heathrow to help you find the cheapest flights, the best time to fly and much more.

How much is a return flight from Boston to London Heathrow Airport?

What’s the cheapest day of the week to fly from Boston to London Heathrow Airport?

The average price of all round-trip flights from Boston to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Boston to London Heathrow Airport, look for departures on Mondays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from London Heathrow Airport, Wednesday is the cheapest day to fly and Sunday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to London Heathrow Airport is January, where tickets cost £414 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is £611 and £556 respectively.

Can I save money by flying with a stopover from Boston to London Heathrow Airport?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at £801 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boston to London Heathrow Airport, you should book around 3 weeks before departure, which saves you about 8% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know - Cheap tickets from Boston to London Heathrow Airport

Low seasonJanuary
Cheapest flight£148
Best time to beat the crowds (14% less expensive on average)
Most popular time to fly and prices are also 3% lower on average.
Flight from Boston to London Heathrow Airport

When to book flights from Boston to Heathrow

Are your dates flexible? Find out the best times to travel from Boston to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Boston to London Heathrow Airport flights

  • What is the cheapest flight from Boston to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from Boston to London Heathrow Airport was £200 for a one-way ticket and £454 for a return.

  • Which airports will I be using when flying from Boston to London Heathrow Airport?

    Boston and London Heathrow Airport are both served by 1 main airport. You will leave Boston from Boston Logan Intl and will be arriving at London Heathrow.

  • Which airlines offer Wi-Fi service onboard planes from Boston to London Heathrow Airport?

    All the following airlines offer inflight Wi-Fi service on the Boston to London Heathrow Airport flight route: JetBlue, Air France, Delta, Virgin Atlantic, American Airlines, Iberia, and KLM.

  • Which aircraft models fly most regularly from Boston to London Heathrow Airport?

    The Boeing 777-200/200ER is the aircraft model that flies most regularly on the Boston to London Heathrow Airport flight route.

  • Which airline alliances offer flights from Boston to London Heathrow Airport?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Boston and London Heathrow Airport, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Boston to London Heathrow Airport?

    There are direct flights from Boston to London Heathrow Airport on a daily basis.

  • Which is the best airline for flights from Boston to London, KLM or Virgin Atlantic?

    The two airlines most popular with KAYAK users for flights from Boston to London are KLM and Virgin Atlantic. With an average price for the route of £568 and an overall rating of 7.8, KLM is the most popular choice. Virgin Atlantic is also a great choice for the route, with an average price of £474 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Boston to London Heathrow Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to London Heathrow Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to London Heathrow Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Boston is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back to Boston with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to London Heathrow Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Boston to London Heathrow Airport

  • Looking for a cheap flight from London Heathrow Airport to Boston? 25% of our users found flights on this route for £166 or less one-way and £317 or less round-trip.

Prefer to fly direct from Boston to London Heathrow Airport?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Boston Logan Intl to London Heathrow.
Find which airlines fly direct from Boston Logan Intl Airport to London Heathrow Airport, which days they fly and book direct flights.

Direct departures

Boston Logan Intl to London Heathrow

Monday

Aer Lingus, Air France, American Airlines, +11 more

Aer Lingus, Air France, +12 more

Tuesday

Aer Lingus, Air France, American Airlines, +11 more

Aer Lingus, Air France, +12 more

Wednesday

Aer Lingus, Air France, American Airlines, +11 more

Aer Lingus, Air France, +12 more

Thursday

Aer Lingus, Air France, American Airlines, +11 more

Aer Lingus, Air France, +12 more

Friday

Aer Lingus, Air France, American Airlines, +11 more

Aer Lingus, Air France, +12 more

Saturday

Aer Lingus, Air France, American Airlines, +11 more

Aer Lingus, Air France, +12 more

Sunday

Aer Lingus, Air France, American Airlines, +11 more

Aer Lingus, Air France, +12 more

See more direct flights

Direct returns

London Heathrow to Boston Logan Intl

Monday

Aer Lingus, Air France, American Airlines, +11 more

Aer Lingus, Air France, +12 more

Tuesday

Aer Lingus, Air France, American Airlines, +11 more

Aer Lingus, Air France, +12 more

Wednesday

Aer Lingus, Air France, American Airlines, +11 more

Aer Lingus, Air France, +12 more

Thursday

Aer Lingus, Air France, American Airlines, +11 more

Aer Lingus, Air France, +12 more

Friday

Aer Lingus, Air France, American Airlines, +11 more

Aer Lingus, Air France, +12 more

Saturday

Aer Lingus, Air France, American Airlines, +11 more

Aer Lingus, Air France, +12 more

Sunday

Aer Lingus, Air France, American Airlines, +11 more

Aer Lingus, Air France, +12 more

See more direct flights

Reviews of the top 5 airlines flying from Boston to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Boston to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Heathrow? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
KLMOverall score based on 1382 reviews
7.3Food
7.7Comfort
8.4Crew
7.8Boarding
7.1Entertainment
Airline reviews

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

2.0 MediocrePeter, Aug 2025SAN - AMS
Read more KLM reviews

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

The baggage drop-off in Stuttgart is bad: after online check-in you cannot use the automated baggage drop off as indicated on the website. You can use the terminals but have to cue to 1 of three open and slowly working counters to drop the bags. took about 45 minutes wait time.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

Klm start boarding while somw air issue in the plan

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

This portion of the flight was through Indigo. A local carrier. So all economy seating. No real service some refreshments for purchase standard economy stuff.

You should not have to pay for WiFi in business class

I bought business class tickets but the seats are exactly like economy with no comfort seats nor an empty seat next to me provided. Very poor, low quality airline.

I don't understand the concept of paying to get your personal luggage onboard and then asked to check it in.... either sell the space or don't, its a hassle to carry those all through the airport just to make a check in at the last minute.

The food was great and the service and attitude was amazing!!

It was a great experience. The only thing I would have changed was that the bathrooms were never cleaned and they got very dirty.

Old airplanes small seats expensive tickets, not as expected overall and not comfortable according to the price

It was an OK flight with below mediocre service by their flight attendants

Wasted a lot of time trying to find the CDG lounge - it was not next to the connecting flight gate like the Air France staff said.

My experience was good overall, the quality of the food really decreased! There used to be a choice between meat and fish now it’s between chicken and pasta! In the choices of entertainment meditation has been added which is very good. Soft chair workout to improve blood circulation and avoid phlebitis should be added.

The only reason the overall rating wasn't "excellent" was due to problems in claiming luggage. The bags are delivered to the main area (Cinta 35) for domestic passengers, but to a DIFFERENT ROOM for international arrivees. After waiting 30 minutes, someone (who didn't appear to be from Air France or the airport) told us to go to another area. There we found our bags, which appeared to have been awaiting us for a while. We had to go through a bag check before leaving the airport. If we had been alerted to this possibility, or better yet, been to go directly to Cinta 34, we could have eliminated quite a bit of waiting.

Much better than the major US Carriers especially in Biz Class.

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Great crew - old style upper class seats on the older fleet now feels dated

Premium economy more comfortable than economy, but not by much. Did was awful, do not try the omelette. Flight crew were helpful. Flight was delayed by over an hour. Overall but bad, arrived safely and thank God.

Food was excellent. Service was very good. Staff was very helpful to all passengers.

The crew was excellent as ever on Virgin. The special meal was poor unfortunately. More significantly when we arrived at Manchester Airport there was no air bridge provided and we had to exit the plane down a rickety stair case. This is unacceptable for a transatlantic flight. Whilst I understand that this is the airport’s fault at the end of the day the airline is responsible for our transportation and needs to do something.

Super friendly and helpful staff, from check-in desk to cabin crew.

Following a paid seat upgrade for enhanced comfort, I encountered an unacceptable odor in my assigned area. It took three hours for the crew to relocate me, and the replacement seat was unacceptably close to the lavatory, offering no improvement.

Good overall. Cannot fault the airlines. I have had better entertainment systems before ie ice in Emirates but it was not too bad. Food was decent and staff were friendly.

We liked the flight but while we purchased an aisle seat, our seats had a different configuration on this flight. A fellow passenger suggested that the airplane had been changed. Too bad we were not informed and had no chance to modify our seat preferences. We were stuck in the window and middle seats with no chance to walk around and go to the bathroom without disturbing our sleeping fellow passenger.

The crew were not very personable. The crew did not serve tea or coffee. The bathroom was not kept clean. Two out of the 5 toilets in the cabin weren't working.

It was extremely cold in the back of the plane. The seats are uncomfortable and space very small. Crew was excellent as usual.

Check in needed to be in person, not nice. Also I won’t do connections in Charlotte again because you need to go through security again and short connections become a problem

Iberia lost my bag, said they found it in another country, said they sent it to me, but never did. Went my whole trip without my stuff, but expecting it to show up because that’s what they said would happen. Their communication sucks, their website sucks, and to top it all off, their seats are small and uncomfortable. They’re bad at their jobs and they should feel bad about themselves. Do not even get me started on the flight home. AVOID!

I described my experience in the previous window. I didn't realize that there would be another opportunity for this flight. Please look at my response in the previous window.

Boarding was 2 1/2 late no explanation Captain said he did not know why, but he rested at home for an extra couple of hours. Food was edible, Nothing more.

I liked the comfort of the plane. It was unexpected from past experiences.

BEWARE!!! Iberia changes your seats at random. I paid for a window seat and they changed it to one in the middle aisle resting against the bathroom- can’t lean back + hear every flush. This on a 11 hour flight.. There were families that were broken up with separate seats all over the plane. Lots of upset passengers showing their seat confirmation to the besieged and helpless airline steward. Also, the gluten free meal was tasteless.

Chair is very high. Your feet cannot touch the ground for 8 hours flight. It was a nightmare. Food was bad.

Didn’t fly with them as someone had cancelled my flight

Online check-in 24 hours in advance something seems not so easy to check in to pick seats and to print a boarding pass

I like the crew, very welcoming. Food can be better. The seat arms don’t go up so. I could use the empty seat next to mine to relax better. 3hrs delay 😠

Boarding was efficient and quick, crew was very attentive, seats were comfortable.

Everything was very good! I personally struggled with the heat in the cabin for the first 2 hours

Very caring crew on board. Didn’t have dinner as I was sleeping. Was seating in the emergency row so I had comfortable leg room

Had a nice little suite although I couldn’t close the door (but I didn’t ask anyone to help). 5K is a nice seat and very private (you look in on first class). Enjoyable flight and nice crew.

Although the crew were great and the good nice, I might as well have been on Ryanair for the amount of space I had. Not good enough BA. I’d rather pay more and not feel like a human sardine.

Love the A380 - loads of room. Headphone socket on my seat didn’t work. Sounds like a trivial issue? Well when flying long-haul the in-flight entertainment is what keeps you going so when it doesn’t work it’s a disaster. Pay attention to the details please BA. Spoiled what was otherwise an excellent flight with the usual brilliant crew.

Crew were fantastic can’t fault them at all. Couldn’t do enough for us

Everything you need to know for your flight from Boston to Heathrow

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