£116 Find Cheap Flights from Boston to the United Kingdom

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 the United Kingdom departing on 25/3. 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, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to the United Kingdom

Travellers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

Save 26% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boston to the United Kingdom

Cheapest return prices found by our users on KAYAK in the last 72 hours
London
London2 stops£360
Manchester
Manchester2 stops£373
Edinburgh
Edinburghdirect£396
Birmingham
Birmingham2 stops£342
Belfast
Belfast2 stops£389
Bristol
Bristol1 stop£375
Aberdeen
Aberdeen1 stop£411
Liverpool
Liverpool2 stops£367
Leeds
Leeds1 stop£453
Inverness
Inverness1 stop£312
Newquay
Newquay1 stop£567
Cardiff
Cardiff2 stops£331
Kirkwall
Kirkwall2 stops£750
London
London2 stops£360
Manchester
Manchester2 stops£373
Edinburgh
Edinburghdirect£396
Birmingham
Birmingham2 stops£342
Belfast
Belfast2 stops£389
Bristol
Bristol1 stop£375
Aberdeen
Aberdeen1 stop£411
Liverpool
Liverpool2 stops£367
Leeds
Leeds1 stop£453
Inverness
Inverness1 stop£312
Newquay
Newquay1 stop£567
Cardiff
Cardiff2 stops£331
Kirkwall
Kirkwall2 stops£750

Book Cheap Boston to the United Kingdom Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Boston to the United Kingdom 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 the United Kingdom

Mon, 13 Apr - Wed, 29 Apr
Multiple Airlines Logo
23:00 - 22:40
BOS
-
BHX
18h 40m
2 stops
Multiple Airlines Logo
08:30 - 18:50
BHX
-
BOS
15h 20m
2 stops
£342Multiple Airlines
Sat, 4 Apr - Tue, 14 Apr
Multiple Airlines Logo
20:50 - 15:30
BOS
-
GLA
13h 40m
2 stops
Multiple Airlines Logo
08:20 - 18:50
GLA
-
BOS
15h 30m
2 stops
£343Multiple Airlines
Mon, 13 Apr - Wed, 29 Apr
Multiple Airlines Logo
22:50 - 11:30
BOS
-
BHX
31h 40m
1 stop
Multiple Airlines Logo
12:10 - 21:05
BHX
-
BOS
13h 55m
1 stop
£355Multiple Airlines
Sat, 4 Apr - Mon, 20 Apr
Icelandair Logo
20:50 - 13:35
BOS
-
GLA
11h 45m
1 stop
Icelandair Logo
14:30 - 21:45
GLA
-
BOS
12h 15m
1 stop
£357Icelandair
Wed, 11 Mar - Tue, 17 Mar
Icelandair Logo
12:35 - 09:55
BOS
-
GLA
17h 20m
1 stop
Icelandair Logo
12:35 - 18:50
GLA
-
BOS
10h 15m
1 stop
£358Icelandair
Sat, 2 May - Sun, 10 May
Multiple Airlines Logo
20:50 - 14:15
BOS
-
LGW
12h 25m
2 stops
Multiple Airlines Logo
08:55 - 18:50
LGW
-
BOS
14h 55m
2 stops
£360Multiple Airlines
Wed, 29 Apr - Wed, 13 May
JetBlue Logo
22:50 - 10:00
BOS
-
EDI
6h 10mdirect
JetBlue Logo
11:30 - 13:47
EDI
-
BOS
7h 17mdirect
£396JetBlue
Wed, 29 Apr - Wed, 13 May
JetBlue Logo
13:00 - 09:20
BOS
-
EDI
15h 20m
1 stop
JetBlue Logo
11:30 - 13:47
EDI
-
BOS
7h 17mdirect
£398JetBlue
Tue, 17 Mar - Tue, 31 Mar
Aer Lingus Logo
18:10 - 07:45
BOS
-
BHX
9h 35m
1 stop
Aer Lingus Logo
08:10 - 18:50
BHX
-
BOS
15h 40m
1 stop
£423Aer Lingus
Mon, 30 Mar - Wed, 1 Apr
Virgin Atlantic Logo
16:35 - 18:30
BOS
-
LCY
20h 55m
1 stop
Virgin Atlantic Logo
09:20 - 22:55
LCY
-
BOS
18h 35m
2 stops
£424Virgin Atlantic
Booking Insights

KAYAK's insights & trends for Boston to the United Kingdom flights

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

What is the cheapest Boston to the United Kingdom flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to the United Kingdom from Boston found in the last 72 hours was to London, at £165 return. The most popular route is from Boston (BOS) to London Heathrow Airport (LHR), and the cheapest round-trip airline ticket found on this route in the last 72 hours was £166.

Can I save money by flying with a stopover from Boston to the United Kingdom?

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 £521 on average.

What is the cheapest month to fly from Boston to the United Kingdom?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to the United Kingdom, 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 the United Kingdom is October, when tickets cost £383 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of return tickets is £589 and £518 respectively.

What’s the cheapest day of the week to fly from Boston to United Kingdom?

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

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

How far in advance should I book a flight from Boston to the United Kingdom?

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 the United Kingdom, 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 the United Kingdom, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know - Cheap tickets from Boston to the United Kingdom

Low seasonJanuary
Cheapest flight£116
Best time to beat the crowds (21% less expensive on average)
Most popular time to fly (19% more expensive on average)
Flight from Boston to Manchester

Flights from Boston to the United Kingdom: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from Boston to the United Kingdom 
MarilynFlew with British Airways
BOS
-
LHR
Feb 2026
Meeting a friend at Heathrow was difficult as there are many terminals so far apart. Access to the train was great and an easy way to get to the downtown area.
Verified travelerFlew with British Airways
BOS
-
LHR
Jan 2024
Leave plenty of time if connecting in London as most connecting flights are in a different terminal which requires a bus or tram ride. Also if you’re not at the gate 30 minutes ahead they will not let you on the plane. Apparently this is a Heathrow not airline rule.

FAQs - booking United Kingdom flights

  • How does KAYAK find such low prices on flights from Boston to the United Kingdom?

    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 the United Kingdom.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Boston to the United Kingdom 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 the United Kingdom?

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

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

    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 from Boston to the United Kingdom up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to the United Kingdom?

    The cheapest time of day to fly to the United Kingdom is generally in the evening, when retur flights cost £435 on average. Morning departures are around 23% more expensive than evening flights, on average. The most expensive time of day to fly to the United Kingdom is generally in the morning, which is peak travel time and where the average cost of a ticket is £534.

Top tips for finding a cheap flight from Boston to the United Kingdom

  • Looking for a cheap flight from Boston to the United Kingdom? 25% of our users found tickets from Boston to the United Kingdom for the following prices or less: London £243 one-way - £383 round-trip

Reviews of the top 5 airlines flying from Boston to the United Kingdom

 
Need help choosing which airline to fly with from Boston to the United Kingdom? 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.
7.5
Virgin AtlanticOverall score based on 680 reviews
7.7Boarding
7.6Entertainment
8.2Crew
6.9Food
7.3Comfort
Airline reviews

My seat 3G did not go down fully and the buttons were not working properly

8.0 ExcellentAditya, Feb 2026
LHR - JFK
Read more Virgin Atlantic reviews

My seat 3G did not go down fully and the buttons were not working properly

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

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

Great. Has a problem with DOB. Fixed 4 us. Led to a 5 hour earlier flight to London!

Punctual, smooth flight. Crew excellent and cabin very clean. Paid for WiFi but once you close out you cannot get back in even if you paid for entire flight.

Flight crew was superb. Meal was one of the meals at altitude I’ve had

Canceled my flight couple hours before takeoff. They could not find a decent re-routing and refused to pay for when i subjected alternative with Lufthansa.

Seats a little to soft on the SFO DUB flight

Well, I think we left close to on time. Crew was “eh”.

Flight takeoff was delayed an hour, but arrival time was not updated at the same time as departure time, so those picking me up at the other end were not alerted to the change in my arrival.

Seats are terribly cramped. I’m only 5’2” and my knees were practically in my face. No room to put a normal size bag under the seat and when the person in front of you reclined their seat your tray table was in your lap. This is the airline’s way of cramming more seats into the plane to make more money. I’ll think twice about taking Aer Lingus again since there are a few other options from Boston to the Emerald Isle.

Couldn’t check In online, message was couldn’t check in until Sunday morning though plane left Saturday night. Checked in okay at airport but caused slot if stress.

My flight from Dublin was delayed two hours which ment that I missed my connecting flight to Phoenix. American Airlines provided a hotel room and rebooked my flight for 7:30 AM the next day. I didn't get to the room until 11 pm and I had to be at the airport the next day by 5 AM. The airlines did their best but the schedule was challenging for an 81 year old.

We were made to wait in the airport for six hours for a flight that was ultimately canceled.

Both flights were significantly delayed. The flight experience itself was great.

My flight got delayed and eventually canceled, then rescheduled. I and several others had a connection from Boston to Paris and asked several times if we would make it. They assured us we would and then rebooked us mid flight without our consent and closed doors early even though they said they communicated we were a bit delayed. We got stranded in Boston and I opted with being rebooked for a different connection to France since they refused to pay for a Hotel. I've now been in Europe for 5 days and still haven't recieved my bags. There was absolutely no urgency for the fact that I'm in a foreign country with absolutely no change of clothes or any of my medication. Such an overwhelming and frustrating experience.

Automated scanning was slow and somewhat haphazard. Too many people were unfamiliar with the tech and were forced to learn on the fly. The hands off approach of the gate staff made it more uncomfortable. This needs work. Overall the flight and cabin crew were excellent.

The crew for the flight was A+ top notch. They were friendly and professional and made the flight a very relaxing and enjoable.

Rude crew member. She seemed annoyed at me without me saying a single word. Also loudly admonished me for having my bag next to my seat instead of tucked away before landing. Just telling me to put it away and guiding me without giving me a lecture would have been enough.

No included food for a 5 hour flight and the entertainment was only accessible if you had wired headphones (not provided). Otherwise though, great and smooth flying and customer service.

Crew were fantastic and so catering and wonderful! Full score for the entire crew!

Because of weather and mechanical issues our flight was 4 hours late. The only compensation offered to us was a meal voucher to be used only at Boston Airport and only on the day issued. But by the time it was offered to us all the restaurants were closed, so there was no way to use that offer.

Friendly crew, efficient boarding and flight arrived early. Couldn’t ask for a better experience

Awful. They didn't even show concern that her connecting flight( Dallas to Mardrid) was gone/missing. I don't understand how that is even possible. Rudest answer from one of the crew was that American Airlines sold the tickets to somebody else. My daughter was not in the list.

The flight was canceled on a Thursday last minute. I lost thousands of dollars in hotels and car rental

Excellent lie flat seat for premium economy! Great staff. Bad food . Not so great entertainment. My bag didn’t make it either.

Really like the idea experience on this airline I will use again

The boarding procedure got confusing because they wanted to weigh everyone’s carry-on. Apparently mine was 3 1/2 kg over their limit. I didn’t know they had a limit. And at the check-in desk, nothing was said about this. They wanted me to check the carry-on at no charge and that would have been fine except then they told me at my connection in London I would have to go outside to baggage claim retrieve my bag, and then recheck it. In other words, they could not check it to my final destination, only to London. I told him this was unacceptable so after a few minutes of discussion, they came back and said that my bag would be OK to carry on the plane. It seems that if you have a connection then the weight is not as important. Then when I actually went to board the boarding agent said I needed a tag indicating that my bag had been weighed, even though she had just five minutes ago talked to the same person who cleared me. Lots of confusion seems like a very bad process. They need to improve this.

My flight being automatically moved messed up my travel plans, and I had to quickly find an alternative mode of transportation. I couldn’t get a refund from any of the companies involved. Kayak, Ibiza, or Vueling. I am still unsure of how to settle my concern.

Plane delayed due to weather. Plane boarded, then told to unboard due to a maintenance issue.

the seats were so cramped you could barely move. it was difficult to eat when passengers would recline their seats. the seats were so flimsy and unstable that whenever someone got in and out of their seat, it bounced like a spring back in your face. the movies were nice. the food was terrible. even though the conditions were terrible, they tried to pressure passengers to relocate their seats to accommodate adults who were related and wanted to sit next to each other, even after the passengers expressed that they did not want to move for that purpose. on the connecting flight, the “service” consisted of items for purchase. even though the flight was only 45 minutes, once again passengers (including me) were pressured to relocate for people to sit next to each other. they couldn’t be apart for 45 minutes? this was much less compelling than being apart for an 8 hour flight.

Everything went smoothly, and we even arrived 40min earlier than scheduled, on an Orland-Madrid route.

The staff was very nice and helpful. Some of the best crew I have met.

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

We waited at BOS at the gate for an hour and couldn’t get a drink or anything. Once in the air the service, food and ride was excellent.

My enetertainmnet screen was broken. Lost my bags. Almost missed my flight do to connection issues with (despite a request) ZERO help from crew. Food was edible. Potatoes pretty good even

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

The airline was not clear about a new departure time so we got to the airport early anyway. The flight left early which was great because of weather. The check in process was very easy and staff were friendly and helpful. The crew was great and our flight was very good.

Awful it always is unfortunately is the only way to fly direct to london

I travelled in business class and was disappointed by lack of service, curt and borderline rude time of the crew and to top it off, all of my luggage was delayed. It was like pulling teeth to even report the missing luggage and recover it the next day from the airport.

Everything you need to know for your flight from Boston to the United Kingdom

Information on your arrival and departure airports