How long is the flight from London to Boston?

There are many flights that can get you from London to Boston in 7h 40m. Fly via TAP AIR PORTUGAL, Delta, or British Airways to get the fastest option. There are 3254 mi between London and Boston. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

According to our current data, TAP AIR PORTUGAL (£223), Delta (£274), and Icelandair (£290) offers the cheapest pricing from London to Boston. Users have found that TAP AIR PORTUGAL is 55% cheaper than the other options available to this destination.

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

One-way options have recently been found by users for as low as £258 on JetBlue. Other airlines that offer cheap prices include Air Canada from £268 and TAP AIR PORTUGAL from £280 one-way.

In terms of precipitation, rainfall in Boston ranges from 78.0 - 101.0 inches per month. March is typically the wettest month, when rainfall can reach 101.0 mm. July is typically the driest time to visit Boston when rainfall is around 78.0 mm.

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 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -1.0 C).

What are the most popular routes from London to Boston?

The most popular route from London to Boston is London Heathrow - Boston Logan Intl. You may also consider London City - Boston Logan Intl or London Gatwick - Boston Logan Intl.

What are the cheapest flights from London to Boston?

Looking for the cheapest flight from London to Boston? While on average our users pay £1,302, our data indicates the cheapest price to be £347. The most popular route (London Heathrow - Boston Logan Intl), is priced around £355.

What are the most reliable airlines from London to Boston?

The top 3 most reliable airlines when flying from London to Boston are Scandinavian Airlines (95%), JetBlue (87%) and TAP AIR PORTUGAL (87%).

What are the most popular airlines that fly from London to Boston?

Before booking your flight from London to Boston check out the most popular airlines for this route: Virgin Atlantic, British Airways or JetBlue.

What airport do you fly into for flights to Boston from London?

Boston Logan Intl (BOS), located 2.6 mi from the city center, is the airport you fly into when you book flights from London to Boston. 16 airlines have flights to Logan Intl from London on a regular basis. Booking flights from London to Boston Logan Intl should not be difficult; the airport handles an average of 26 inbound flights from London per day.

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 holiday 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.

£339+ Cheap Flights from London to Boston

Cheapflights Tip: The best prices from London to Boston Logan Intl are usually found in February or November, booked 81 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from London to Boston

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

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 31 August 2026.

Thu 1/1011:05 -

2 stops14h 05m

Tue 6/1020:05 -

2 stops16h 00m

Deal found 26/8£482

Tue 13/1009:15 -

1 stop10h 55m

Tue 20/1021:40 -

1 stop9h 55m

Deal found 28/8£483

Sat 12/906:30 -

1 stop15h 05m

Wed 16/913:00 -

1 stop12h 20m

Deal found 27/8£483

Thu 3/913:00 -

1 stop10h 50m

Wed 9/920:50 -

1 stop12h 50m

Deal found 26/8£483

Thu 8/1009:15 -

1 stop10h 55m

Tue 20/1021:40 -

1 stop9h 55m

Deal found 29/8£484

Wed 11/1107:15 -

1 stop11h 40m

Sat 14/1117:15 -

1 stop9h 25m

Deal found 27/8£484

Thu 24/905:40 -

1 stop20h 25m

Thu 1/1022:55 -

1 stop14h 10m

Deal found 27/8£484

Fri 4/909:30 -

1 stop10h 11m

Thu 10/915:35 -

1 stop13h 25m

Deal found 28/8£484

Mon 5/1018:35 -

1 stop30h 20m

Tue 3/1121:50 -

1 stop15h 00m

Deal found 28/8£484

Wed 7/1013:10 -

1 stop11h 45m

Wed 21/1021:40 -

1 stop9h 55m

Deal found 29/8£485

Wed 25/1108:40 -

2 stops14h 10m

Sat 28/1119:50 -

2 stops22h 15m

Deal found 28/8£485

Mon 7/920:35 -

2 stops24h 05m

Mon 14/917:10 -

2 stops16h 25m

Deal found 27/8£485

Best flights from London to Boston
Discover carefully curated flight deals from London to Boston that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 31 August 2026.

Tue 1/1210:40 -

2 stops15h 05m

Sun 6/1218:00 -

2 stops21h 35m

Deal found 29/8£485

Mon 21/1214:45 -

1 stop11h 30m

Sun 3/120:00 -

Nonstop6h 50m

Deal found 29/8£486

Sun 7/217:00 -

Nonstop7h 40m

Fri 12/207:30 -

Nonstop6h 30m

Deal found 26/8£487

Tue 13/1016:05 -

Nonstop7h 45m

Tue 20/1021:30 -

Nonstop6h 45m

Deal found 29/8£493

Tue 20/1007:30 -

2 stops14h 16m

Thu 29/1018:05 -

2 stops12h 45m

Deal found 27/8£496

Wed 7/1009:40 -

1 stop16h 25m

Wed 14/1022:55 -

1 stop18h 45m

Deal found 28/8£526

Mon 15/207:45 -

1 stop11h 28m

Fri 19/219:15 -

1 stop9h 15m

Deal found 26/8£538

Tue 10/1117:20 -

1 stop29h 45m

Tue 17/1120:00 -

1 stop32h 55m

Deal found 30/8£669

Sat 31/1016:35 -

2 stops33h 10m

Sat 14/1118:00 -

1 stop10h 50m

Deal found 29/8£495

Mon 14/1209:30 -

2 stops14h 34m

Tue 12/114:16 -

2 stops13h 54m

Deal found 27/8£496

Sun 14/208:50 -

1 stop10h 25m

Fri 19/207:30 -

Nonstop6h 30m

Deal found 26/8£499

Sat 26/910:25 -

1 stop14h 10m

Sat 3/1017:10 -

1 stop11h 10m

Deal found 27/8£499

Tue 22/910:35 -

1 stop14h 00m

Sun 4/1019:05 -

1 stop9h 20m

Deal found 27/8£499

Mon 28/907:55 -

1 stop13h 15m

Mon 5/1021:20 -

1 stop11h 45m

Deal found 30/8£532

Tue 16/207:45 -

1 stop11h 28m

Fri 19/219:15 -

1 stop9h 15m

Deal found 26/8£538

Sun 20/1208:15 -

2 stops17h 30m

Sun 27/1222:10 -

1 stop19h 30m

Deal found 28/8£497

Thu 1/1008:40 -

1 stop12h 56m

Tue 6/1021:30 -

Nonstop6h 45m

Deal found 26/8£503

Mon 15/211:40 -

Nonstop7h 40m

Fri 19/207:30 -

Nonstop6h 30m

Deal found 26/8£504

Thu 1/1008:25 -

1 stop13h 11m

Wed 21/1013:35 -

2 stops14h 55m

Deal found 29/8£508

Mon 21/907:30 -

2 stops14h 18m

Fri 25/912:45 -

1 stop13h 00m

Deal found 26/8£519

Sat 12/911:00 -

2 stops12h 50m

Mon 14/920:50 -

2 stops13h 55m

Deal found 29/8£547

Mon 9/1116:35 -

2 stops33h 10m

Mon 23/1122:10 -

2 stops17h 25m

Deal found 26/8£507

Sat 19/912:10 -

1 stop11h 20m

Mon 21/916:40 -

1 stop10h 15m

Deal found 30/8£560

Mon 21/916:05 -

Nonstop7h 45m

Mon 28/919:05 -

Nonstop6h 40m

Deal found 30/8£519

Mon 19/1008:25 -

2 stops19h 43m

Wed 28/1021:55 -

1 stop17h 40m

Deal found 26/8£534

Mon 12/1008:15 -

1 stop11h 40m

Mon 19/1021:15 -

1 stop10h 30m

Deal found 28/8£551

Mon 9/1110:55 -

1 stop36h 10m

Mon 23/1120:00 -

1 stop15h 20m

Deal found 29/8£671

Sat 24/1012:05 -

1 stop13h 15m

Sat 31/1023:10 -

2 stops30h 55m

Deal found 30/8£507

Sat 26/909:40 -

Nonstop7h 37m

Thu 15/1021:30 -

Nonstop6h 45m

Deal found 30/8£519

Wed 21/1008:25 -

1 stop9h 50m

Tue 27/1013:05 -

2 stops15h 05m

Deal found 28/8£535

Find flight deals from London to Boston

Round-trip from	£481
One-way from	£339
Popular in	June
Cheapest in	February
Average price	£547
Good round-trip deal	£521 or less
Good one-way deal	£468 or less

SWISS
21/9-28/9
2 total stops
25h 45m total
London to Boston

Search Deals

10/11
3 total stops
27h 20m total
London to Boston

Search Deals

Highest demand for flights based on searches. 10% potential increase in price (£42 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonBoston

LGW London Gatwick - BOS Boston Logan Intl

LGWBOS

London Gatwick

Tue 1/12

10:40-20:45

2 stops15h 05m

Boston Logan Intl

Sun 6/12

18:00-20:35

2 stops21h 35m

£485

LondonBoston

LHR London Heathrow - BOS Boston Logan Intl

LHRBOS

London Heathrow

Mon 21/12

14:45-21:15

1 stop11h 30m

Boston Logan Intl

Sun 3/1

20:00-07:50

Nonstop6h 50m

£486

Fastest return journey

LondonBoston

LHR London Heathrow - BOS Boston Logan Intl

LHRBOS

London Heathrow

Sun 7/2

17:00-19:40

Nonstop7h 40m

Boston Logan Intl

Fri 12/2

07:30-19:00

Nonstop6h 30m

£487

LondonBoston

LHR London Heathrow - BOS Boston Logan Intl

LHRBOS

London Heathrow

Tue 13/10

16:05-18:50

Nonstop7h 45m

Boston Logan Intl

Tue 20/10

21:30-09:15

Nonstop6h 45m

£493

LondonBoston

LGW London Gatwick - BOS Boston Logan Intl

LGWBOS

London Gatwick

Sat 31/10

16:35-21:45

2 stops33h 10m

Boston Logan Intl

Sat 14/11

18:00-09:50

1 stop10h 50m

£495

LondonBoston

LHR London Heathrow - BOS Boston Logan Intl

LHRBOS

London Heathrow

Tue 20/10

07:30-16:46

2 stops14h 16m

Boston Logan Intl

Thu 29/10

18:05-10:50

2 stops12h 45m

£496

LondonBoston

LHR London Heathrow - BOS Boston Logan Intl

LHRBOS

London Heathrow

Mon 14/12

09:30-19:04

2 stops14h 34m

Boston Logan Intl

Tue 12/1

14:16-09:10

2 stops13h 54m

£496

LondonBoston

LHR London Heathrow - BOS Boston Logan Intl

LHRBOS

London Heathrow

Sun 20/12

08:15-20:45

2 stops17h 30m

Boston Logan Intl

Sun 27/12

22:10-22:40

1 stop19h 30m

£497

LondonBoston

LHR London Heathrow - BOS Boston Logan Intl

LHRBOS

London Heathrow

Sun 14/2

08:50-14:15

1 stop10h 25m

Boston Logan Intl

Fri 19/2

07:30-19:00

Nonstop6h 30m

£499

LondonBoston

LGW London Gatwick - BOS Boston Logan Intl

LGWBOS

London Gatwick

Sat 26/9

10:25-19:35

1 stop14h 10m

Boston Logan Intl

Sat 3/10

17:10-09:20

1 stop11h 10m

£499

Flights are sorted by cheapest return flights first.

Deals found on 26/8

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

LON-BOS

LHR-BOS

LCY-BOS

LGW-BOS

STN-BOS

Estimated return 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

LON-BOS

LHR-BOS

LCY-BOS

LGW-BOS

STN-BOS

What is the cheapest month to book a flight from London to Boston?

Currently, February is the cheapest month in which you can book a flight from London to Boston (average of £411). Flying from London to Boston in June is currently the most expensive (average of £613). 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?

It’s optimal to fly from London to Boston at midday. By choosing this option you can save up to 21% on the cost of your flight, compared to a flight in the evening.

Weekly flight availability from London to Boston

The most flights from LON to BOS are scheduled on a Saturday (41 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (20 on average).

How much does it cost for a return flight from London to Boston?

Airfare is typical for this route at the moment.

London to Boston flights typically cost between £382 and £532 in September.
The cheapest return price found within the last 5 days was £481 on SWISS (21 Sept–28 Sept).

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

Reykjavik (KEF) – chosen by Cheapflights users on 45% of one-stop itineraries from London to Boston on Cheapflights.

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

Barcelona (BCN) is the most affordable one-stop option, with an average return flight price of £332.

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

Flights via Dublin (DUB) have the shortest average one-way travel time for one-stop routes: 9h 45m.

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

Flights via Zurich (ZRH) offer the fastest connection on this route, with an average stopover time of 1h 00m.

How often are flights from London to Boston delayed?

About 10% of weekly flights between London and Boston have experienced delays in the past year, with the average delay time being 156 minutes.

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

Historically, flights departing in the morning 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 Tuesday 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 past year, Virgin Atlantic have had the lowest number of delays on this route, with just 6% of flights being delayed.

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

The best time to book flights from London to Boston is 58 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Travellers seeking maximum savings on their London to Boston flight should consider departing on Wednesday at midday 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.

Reviews of airlines servicing Boston

See what other customers who have flown with KLM,Virgin Atlantic, andJetBlue from London to Boston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,570 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Meghana,Aug 2026

QRO - ATL

It was a good one. They were very friendly and helpful

KLM

7.8

Good

1,570 reviews

KLM

7.8

Good

1,570 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Meghana,Aug 2026

QRO - ATL

It was a good one. They were very friendly and helpful

Virgin Atlantic

7.4

Good

695 reviews

KLM

7.8

Good

1,570 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Meghana,Aug 2026

QRO - ATL

It was a good one. They were very friendly and helpful

JetBlue

7.1

Good

3,034 reviews

KLM

7.8

Good

1,570 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Meghana,Aug 2026

QRO - ATL

It was a good one. They were very friendly and helpful

Icelandair

6.9

Okay

738 reviews

KLM

7.8

Good

1,570 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Meghana,Aug 2026

QRO - ATL

It was a good one. They were very friendly and helpful

British Airways

6.7

Okay

8,198 reviews

KLM

7.8

Good

1,570 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Meghana,Aug 2026

QRO - ATL

It was a good one. They were very friendly and helpful

Related info for your journey

What airport do you fly into for flights to Boston from London?
Boston Logan Intl (BOS), located 2.6 mi from the city center, is the airport you fly into when you book flights from London to Boston. 16 airlines have flights to Logan Intl from London on a regular basis. Booking flights from London to Boston Logan Intl should not be difficult; the airport handles an average of 26 inbound flights from London per day.
How long is the flight from London to Boston?
There are many flights that can get you from London to Boston in 7h 40m. Fly via TAP AIR PORTUGAL, Delta, or British Airways to get the fastest option. There are 3254 mi between London and Boston. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from London to Boston round-trip?
According to our current data, TAP AIR PORTUGAL (£223), Delta (£274), and Icelandair (£290) offers the cheapest pricing from London to Boston. Users have found that TAP AIR PORTUGAL is 55% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from London to Boston one-way?
One-way options have recently been found by users for as low as £258 on JetBlue. Other airlines that offer cheap prices include Air Canada from £268 and TAP AIR PORTUGAL from £280 one-way.
What are the most popular routes from London to Boston?
The most popular route from London to Boston is London Heathrow - Boston Logan Intl. You may also consider London City - Boston Logan Intl or London Gatwick - Boston Logan Intl.
What are the most reliable airlines from London to Boston?
The top 3 most reliable airlines when flying from London to Boston are Scandinavian Airlines (95%), JetBlue (87%) and TAP AIR PORTUGAL (87%).
What are the cheapest flights from London to Boston?
Looking for the cheapest flight from London to Boston? While on average our users pay £1,302, our data indicates the cheapest price to be £347. The most popular route (London Heathrow - Boston Logan Intl), is priced around £355.
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 holiday 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, February is the cheapest month in which you can book a flight from London to Boston (average of £411). Flying from London to Boston in June is currently the most expensive (average of £613). 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

Burlington

Canton

North Truro

Waltham

Warwick

Cambridge

Peabody

Wellfleet

Revere

Somerville

Quincy

Chelmsford

Browse thousands of different options on Cheapflights for your next trip

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Direct flights to Massachusetts

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Fly from London to Boston on these airlines

Virgin Atlantic flights from London to Boston Logan Intl

British Airways flights from London to Boston Logan Intl

Finnair flights from London to Boston Logan Intl

Top 10 airlines flying from London to Boston

Airline	Cheapest	Average	Flexibility	On-time
TAP AIR PORTUGAL	Cheapest£223	Average£369	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Delta	Cheapest£274	Average£578	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Icelandair	Cheapest£290	Average£448	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Lufthansa	Cheapest£310	Average£448	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
United Airlines	Cheapest£322	Average£499	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
JetBlue	Cheapest£322	Average£584	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
Scandinavian Airlines	Cheapest£342	Average£449	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Aer Lingus	Cheapest£350	Average£512	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Virgin Atlantic	Cheapest£354	Average£517	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Air Canada	Cheapest£357	Average£530	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights

Fly with Cheapflights

How does Cheapflights help users find flights from London to Boston?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Boston from London today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from London to Boston?

Millions of users choose and trust Cheapflights to book the best flight deals from London to Boston for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from London to Boston with no change fees?

Yes! Cheapflights helps users easily find flights from London to Boston with no change fees.

Can Cheapflights notify me if prices for flights from London to Boston become cheaper?

Yes! Start tracking prices for London to Boston flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from London to Boston from £339

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 10/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to Boston

Cheapest flights from London to BostonExplore 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 31 August 2026.

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 31 August 2026.

Best flights from London to BostonDiscover carefully curated flight deals from London to Boston that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 31 August 2026.

Discover carefully curated flight deals from London to Boston that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 31 August 2026.

Direct flights from London to BostonExplore direct flight options from London to Boston based on user searches, and compare prices and availability for your desired travel dates. Data last updated 31 August 2026.

Explore direct flight options from London to Boston based on user searches, and compare prices and availability for your desired travel dates. Data last updated 31 August 2026.

Last-minute flights from London to BostonDiscover last-minute flight deals from London to Boston. Data last updated 31 August 2026 and is based on user searches.

Discover last-minute flight deals from London to Boston. Data last updated 31 August 2026 and is based on user searches.

One-way flights from London to BostonSearch for one-way flight options from London to Boston. Find affordable one-way fares based on user searches. Data last updated 31 August 2026.

Search for one-way flight options from London to Boston. Find affordable one-way fares based on user searches. Data last updated 31 August 2026.

Find flight deals from London to Boston

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

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

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.

Cheapflights Insights

What is the cheapest month to book a flight from London to Boston?

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 31 August 2026.

It’s optimal to fly from London to Boston at midday. By choosing this option you can save up to 21% on the cost of your flight, compared to a flight in the evening.

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 31 August 2026.

The most flights from LON to BOS are scheduled on a Saturday (41 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (20 on average).

How much does it cost for a return flight from London to Boston?

Airfare is typical for this route at the moment.

London to Boston flights typically cost between £382 and £532 in September.The cheapest return price found within the last 5 days was £481 on SWISS (21 Sept–28 Sept).

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

Share of one-stop return flights from London to Boston chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Reykjavik (KEF) – chosen by Cheapflights users on 45% of one-stop itineraries from London to Boston on Cheapflights.

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

Average return fare for one-stop flights from London to Boston, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Barcelona (BCN) is the most affordable one-stop option, with an average return flight price of £332.

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

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

Flights via Dublin (DUB) have the shortest average one-way travel time for one-stop routes: 9h 45m.

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

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

Flights via Zurich (ZRH) offer the fastest connection on this route, with an average stopover time of 1h 00m.

How often are flights from London to Boston delayed?

About 10% of weekly flights between London and Boston have experienced delays in the past year, with the average delay time being 156 minutes.

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

Historically, flights departing in the morning 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 Tuesday 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 past year, Virgin Atlantic have had the lowest number of delays on this route, with just 6% of flights being delayed.

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

The best time to book flights from London to Boston is 58 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Use this chart to determine the cheapest time to fly return from London to Boston. Price data was last updated on 22 August 2026.

Travellers seeking maximum savings on their London to Boston flight should consider departing on Wednesday at midday 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.

Reviews of airlines servicing Boston

See what other customers who have flown with KLM,Virgin Atlantic, andJetBlue from London to Boston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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What is the cheapest month to book a flight from London to Boston?

Travelling to a place near Boston?

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Fly from London to Boston on these airlines

Choose from the following airlines for your flight from London to Boston. Flights are based on user searches made on Cheapflights and were last updated on 31 August 2026.

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 31 August 2026.

Best flights from London to Boston
Discover carefully curated flight deals from London to Boston that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 31 August 2026.

Direct flights from London to Boston
Explore direct flight options from London to Boston based on user searches, and compare prices and availability for your desired travel dates. Data last updated 31 August 2026.

Last-minute flights from London to Boston
Discover last-minute flight deals from London to Boston. Data last updated 31 August 2026 and is based on user searches.

One-way flights from London to Boston
Search for one-way flight options from London to Boston. Find affordable one-way fares based on user searches. Data last updated 31 August 2026.

London to Boston flights typically cost between £382 and £532 in September.
The cheapest return price found within the last 5 days was £481 on SWISS (21 Sept–28 Sept).