What is the cheapest airline that flies from Boston Logan Intl to London?

SWISS, United Airlines, and Delta are the most popular carriers operating from Boston Logan Intl to London

How many flights depart from Boston to London on average per day?

As of January 2026, there are 28 flights per day flying from Boston to London. The most common time of day flights depart is 19:00, with 82% of flights taking off in the evening.

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

According to our data, Virgin Atlantic have had the fewest delays on this route over the last 12 months, with about 7% of their flights experiencing any sort of delay.

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

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

How often are flights from Boston to London delayed?

Historically, on average around 11% of flights between Boston and London have experienced a delay on any given week. The average delay length over the past 12 months has been 142 minutes.

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

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

How many flights depart from Boston to London on average per week?

198 flights are operational weekly from Boston to London as of January 2026. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.

When did momondo last update prices for flights from Boston Logan Intl Airport to London?

Prices for flights from Boston Logan Intl Airport to London refresh daily.

How old do you have to be to fly from Boston Logan Intl Airport to London?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to London.

What documentation or ID do you need to fly to London?

The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$320 Cheap Flights from Boston to London in 2026

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20:50 - 11:55

BOS

LHR

10h 05m

1 stop

13:05 - 18:50

LHR

BOS

10h 45m

1 stop

$712Icelandair

Tue, 28 Apr - Wed, 13 May

20:50 - 11:55

BOS

LHR

10h 05m

1 stop

21:25 - 18:50

LHR

BOS

26h 25m

1 stop

$714Icelandair

Tue, 21 Apr - Fri, 1 May

18:10 - 10:25

BOS

LHR

11h 15m

1 stop

08:40 - 19:55

LHR

BOS

16h 15m

1 stop

$724United Airlines

Sat, 18 Apr - Mon, 20 Apr

05:30 - 18:15

BOS

LTN

32h 45m

3 stops

14:35 - 21:20

LTN

BOS

34h 45m

2 stops

$724Multiple Airlines

Wed, 11 Mar - Wed, 18 Mar

09:30 - 10:40

BOS

LHR

20h 10m

1 stop

08:40 - 19:55

LHR

BOS

16h 15m

1 stop

$725United Airlines

Sat, 18 Apr - Mon, 20 Apr

20:05 - 17:05

BOS

LHR

16h 00m

1 stop

12:40 - 17:45

LHR

BOS

10h 05m

1 stop

$728United Airlines

Wed, 22 Apr - Fri, 24 Apr

19:05 - 18:10

BOS

STN

19h 05m

1 stop

06:30 - 15:35

STN

BOS

13h 05m

1 stop

$738Multiple Airlines

Wed, 11 Mar - Wed, 18 Mar

17:20 - 08:20

BOS

LGW

10h 00m

1 stop

09:25 - 15:10

LGW

BOS

10h 45m

1 stop

$782SWISS

Mon, 30 Mar - Sun, 5 Apr

19:05 - 09:20

BOS

LGW

9h 15m

1 stop

10:25 - 19:35

LGW

BOS

14h 10m

1 stop

$792Delta

Sat, 25 Apr - Sat, 9 May

17:10 - 15:45

BOS

LGW

17h 35m

1 stop

10:25 - 19:35

LGW

BOS

14h 10m

1 stop

$796Delta

Mon, 6 Apr - Wed, 29 Apr

JetBlue flights from Boston to London

Our best JetBlue deals on Boston to London flight tickets

JetBlue

9 Feb

BOS19:12Boston Logan Intl

6h 43m

LHR06:55London Heathrow

13 Feb

LHR09:20London Heathrow

8h 00m

BOS12:20Boston Logan Intl

$754

JetBlue

15 Mar

BOS20:15Boston Logan Intl

6h 40m

LHR06:55London Heathrow

22 Apr

LHR08:40London Heathrow

7h 34m

BOS11:14Boston Logan Intl

$782

JetBlue

28 May

BOS21:55Boston Logan Intl

6h 40m

LGW09:35London Gatwick

1 June

LGW12:20London Gatwick

7h 46m

BOS15:06Boston Logan Intl

$1,009

United Airlines flights from Boston to London

Our best United Airlines deals on Boston to London flight tickets

United Airlines

18 Apr

BOS18:10Boston Logan Intl

11h 15m

1 stop

LHR10:25London Heathrow

20 Apr

LHR08:40London Heathrow

16h 15m

1 stop

BOS19:55Boston Logan Intl

$724

United Airlines

18 Apr

BOS09:30Boston Logan Intl

20h 10m

1 stop

LHR10:40London Heathrow

20 Apr

LHR08:40London Heathrow

16h 15m

1 stop

BOS19:55Boston Logan Intl

$725

United Airlines

22 Apr

BOS20:05Boston Logan Intl

16h 00m

1 stop

LHR17:05London Heathrow

24 Apr

LHR12:40London Heathrow

10h 05m

1 stop

BOS17:45Boston Logan Intl

$728

Fly from

Fly to

Route

Depart

Return

Price

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 28/4

20:50-11:55

1 stop10h 05m

London Heathrow

Wed 13/5

13:05-18:50

1 stop10h 45m

$712

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Tue 21/4

20:50-11:55

1 stop10h 05m

London Heathrow

Fri 1/5

21:25-18:50

1 stop26h 25m

$714

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 18/4

18:10-10:25

1 stop11h 15m

London Heathrow

Mon 20/4

08:40-19:55

1 stop16h 15m

$724

BostonLondon

BOS - LTN

BOSLTN

Boston Logan Intl

Wed 11/3

05:30-18:15

3 stops32h 45m

London Luton

Wed 18/3

14:35-21:20

2 stops34h 45m

$724

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Sat 18/4

09:30-10:40

1 stop20h 10m

London Heathrow

Mon 20/4

08:40-19:55

1 stop16h 15m

$725

BostonLondon

BOS - LHR

BOSLHR

Boston Logan Intl

Wed 22/4

20:05-17:05

1 stop16h 00m

London Heathrow

Fri 24/4

12:40-17:45

1 stop10h 05m

$728

BostonLondon

BOS - STN

BOSSTN

Boston Logan Intl

Wed 11/3

19:05-18:10

1 stop19h 05m

London Stansted

Wed 18/3

06:30-15:35

1 stop13h 05m

$738

BostonLondon

BOS - LGW

BOSLGW

Boston Logan Intl

Mon 30/3

17:20-08:20

1 stop10h 00m

London Gatwick

Sun 5/4

09:25-15:10

1 stop10h 45m

$782

BostonLondon

BOS - LGW

BOSLGW

Boston Logan Intl

Sat 25/4

19:05-09:20

1 stop9h 15m

London Gatwick

Sat 9/5

10:25-19:35

1 stop14h 10m

$792

BostonLondon

BOS - LGW

BOSLGW

Boston Logan Intl

Mon 6/4

17:10-15:45

1 stop17h 35m

London Gatwick

Wed 29/4

10:25-19:35

1 stop14h 10m

$796

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Boston to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to London?

If you aren’t able to travel during the month of October, then book flights to London from Boston during September instead. Flights to London in September, while not as cheap as those in October, still average around $783.

What is the cheapest day to depart on your flight to London?

Our data shows that Tuesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as $794. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Boston to London for around $833.

What is the cheapest Boston Logan Intl to London flight route?

Fly from Boston Logan Intl to London Gatwick for the best Boston Logan Intl - London flight prices

How far in advance should I book a flight to London?

You are more likely to see cheaper flights to London from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $912 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Boston for as low as $879 on momondo.

What cabin class options are available on Boston Logan Intl to London flights?

There are 3 cabin classes available to choose from on Boston Logan Intl to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Boston to London flight prices changed over time?

As of January 2026, prices for Boston to London flights are approximately 2% cheaper when compared to flights at the same time last year.

When to book flights from Boston to London

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to London according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Boston to London (BOS to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to London

Fastest flight time	6h 30m
Direct flights	Every day
Airports in London	6 airports

The fastest flight from Boston to London takes 6h 30m

Direct flights go from Boston to London every day.

There are 6 airports in London. From Boston there are direct flights to London Heathrow (LHR), London Gatwick (LGW).

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How far is Boston Logan Intl to London by plane?
Boston Logan Intl and London are 5260.9 km apart from one another. By plane, this route typically takes 6h 30m.
When did momondo last update prices for flights from Boston Logan Intl Airport to London?
Prices for flights from Boston Logan Intl Airport to London refresh daily.
How old do you have to be to fly from Boston Logan Intl Airport to London?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to London.
What documentation or ID do you need to fly to London?
The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Boston to London?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Boston to London is Boeing 777-200/200ER (25.76% of total bookings). The next most popular plane models are Boeing 777 (21.17%), Airbus A330-900neo (15.44%), and Boeing 787-10 Dreamliner (9.53%).

Gatwick

Hounslow

Wembley

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Brentford

Abingdon

Deal

Ipswich

Dover

Eastbourne

Slough

Chichester

Canterbury

Kingston upon Thames

Brentwood

Guildford

Sutton

Maidstone

Watford

Winchester

Why use momondo?

Why should I use momondo to find a flight deal from Boston to London?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Boston to London. momondo saves you time and could save you money on your trip.

Can I find flights from Boston to London with flexible booking policies on momondo?

Flights from Boston to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Boston to London?

momondo helps you find the best flight between Boston and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Boston to London right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Boston to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

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Look for other cheap flights to Leedsfrom $1,565

Cheap flights from Boston to London from $320

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to London departing on 22/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Our best United Airlines deals on Boston to London flight tickets

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See travel insights to London from

How to get the cheapest flight ticket from Boston to London

What is the cheapest month to fly to London?

If you aren’t able to travel during the month of October, then book flights to London from Boston during September instead. Flights to London in September, while not as cheap as those in October, still average around $783.

What is the cheapest day to depart on your flight to London?

Our data shows that Tuesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as $794. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Boston to London for around $833.

What is the cheapest Boston Logan Intl to London flight route?

Fly from Boston Logan Intl to London Gatwick for the best Boston Logan Intl - London flight prices

How far in advance should I book a flight to London?

What cabin class options are available on Boston Logan Intl to London flights?

There are 3 cabin classes available to choose from on Boston Logan Intl to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Boston to London flight prices changed over time?

As of January 2026, prices for Boston to London flights are approximately 2% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Boston Logan Intl to London?

SWISS, United Airlines, and Delta are the most popular carriers operating from Boston Logan Intl to London

How often are flights from Boston to London delayed?

Historically, on average around 11% of flights between Boston and London have experienced a delay on any given week. The average delay length over the past 12 months has been 142 minutes.

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

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

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

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

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

According to our data, Virgin Atlantic have had the fewest delays on this route over the last 12 months, with about 7% of their flights experiencing any sort of delay.

How many flights depart from Boston to London on average per day?

As of January 2026, there are 28 flights per day flying from Boston to London. The most common time of day flights depart is 19:00, with 82% of flights taking off in the evening.

How many flights depart from Boston to London on average per week?

198 flights are operational weekly from Boston to London as of January 2026. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.

When to book flights from Boston to London

Cheap Boston to London (BOS to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to London

Fastest flight time

Direct flights

Airports in London

How far is Boston Logan Intl to London by plane?

When did momondo last update prices for flights from Boston Logan Intl Airport to London?

How old do you have to be to fly from Boston Logan Intl Airport to London?

What documentation or ID do you need to fly to London?

What is the most popular plane model from Boston to London?

Travelling to a place near London?

Why use momondo?

Why should I use momondo to find a flight deal from Boston to London?

Can I find flights from Boston to London with flexible booking policies on momondo?

How can momondo help me find flights from Boston to London?

I’m not ready to book a flight from Boston to London right now. Can momondo alert me if prices change?

An easier way to manage your London trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 49.5 km from London