Q: What is the typical price of a round-trip flight between London and Boston?

Prices are currently typical for flights on this route. Typical prices usually range from $835 to $1,274. The lowest price recently found on this route was $835.

Question 1

What is the typical price of a round-trip flight between London and Boston?

Accepted Answer

Prices are currently typical for flights on this route.Typical prices usually range from $835 to $1,274.
The lowest price recently found on this route was $835.

Question 2

How often are flights from London to Boston delayed?

Accepted Answer

Historically, on average around 8% of flights between London and Boston have experienced a delay on any given week. The average delay length over the past 12 months has been 153 minutes.

Question 3

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

Accepted Answer

28 flights are operational daily from London to Boston as of December 2025. The most popular departure time for this route is 13:00, with 47% of flights per day taking off in the afternoon.

Question 4

What is the cheapest month to fly to Boston?

Accepted Answer

In general, September is the cheapest month to fly from London to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $787. The month of February is another great option to travel to Boston, with average flight prices from London averaging around $796.

Question 5

How have London to Boston flight prices changed over time?

Accepted Answer

As of December 2025, prices for London to Boston flights are approximately 33% more expensive when compared to flights at the same time last year.

Question 6

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

Accepted Answer

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

Question 7

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

Accepted Answer

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

Question 8

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

Accepted Answer

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

Question 9

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

Accepted Answer

The number of flights available between London and Boston is 197 per week as of December 2025. The most frequent departure day is Mon, with 18% of weekly flights leaving on this day.

Question 10

Can stopping save me money on London to Boston flights?

Accepted Answer

You could potentially save up to 76% on your flight if you consider stops on a London to Boston flight.

Question 11

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

Accepted Answer

On average, the least expensive day to fly to Boston from London is on a Thursday. momondo users have found tickets for Thursday departures for as low as $931. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $1,349. These prices are subject to change though, so be sure to set up a Price Alert for flights to Boston.

Question 12

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

Accepted Answer

United Airlines and JetBlue are the most popular carriers operating from London to Boston Logan Intl

Question 13

What is the cheapest time of day to depart on your flight to Boston?

Accepted Answer

According to our data, the cheapest time of day to fly to Boston is in the afternoon. momondo users have found flights departing from London to Boston in the afternoon for as low as $841. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. At midday is when there is more demand to fly to Boston, so prices are often more expensive at around $1,349 per ticket.

Question 14

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

Accepted Answer

You are more likely to see cheaper flights to Boston from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $934 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from London for as low as $851 on momondo.

Question 15

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

Accepted Answer

There are 2 cabin classes available to choose from on London to Boston Logan Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Question 16

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

Accepted Answer

According to our data, Virgin Atlantic have had the fewest delays on this route over the last 12 months, with about 5% of their flights experiencing any sort of delay.

Question 17

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

Accepted Answer

Prices for flights from London to Boston Logan Intl Airport were last updated today.

Question 18

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

Accepted Answer

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to Boston Logan Intl Airport.

Question 19

What documentation or ID do you need to fly to Boston Logan Intl Airport?

Accepted Answer

The travel and health documents required for your trip to Boston Logan Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Boston Logan Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Fastest flight time	7h 35m
Direct flights	Every day
Airports in Boston	1 airport

Cheap flights from London to Boston from $639

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Boston departing on 23/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from London to Boston

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

Finnair flights from London to Boston

Our best Finnair deals on London to Boston flight tickets

Scandinavian Airlines flights from London to Boston

Our best Scandinavian Airlines deals on London to Boston flight tickets

momondo Fare Finder

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

See travel insights to Boston from

How to get the cheapest flight ticket from London to Boston

What is the typical price of a round-trip flight between London and Boston?

What is the cheapest month to fly to Boston?

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

What is the cheapest time of day to depart on your flight to Boston?

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

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

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

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

There are 2 cabin classes available to choose from on London to Boston Logan Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London to Boston flights?

You could potentially save up to 76% on your flight if you consider stops on a London to Boston flight.

How have London to Boston flight prices changed over time?

As of December 2025, prices for London to Boston flights are approximately 33% more expensive when compared to flights at the same time last year.

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

United Airlines and JetBlue are the most popular carriers operating from London to Boston Logan Intl

How often are flights from London to Boston delayed?

Historically, on average around 8% of flights between London and Boston have experienced a delay on any given week. The average delay length over the past 12 months has been 153 minutes.

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

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

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

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

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

According to our data, Virgin Atlantic have had the fewest delays on this route over the last 12 months, with about 5% of their flights experiencing any sort of delay.

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

28 flights are operational daily from London to Boston as of December 2025. The most popular departure time for this route is 13:00, with 47% of flights per day taking off in the afternoon.

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

The number of flights available between London and Boston is 197 per week as of December 2025. The most frequent departure day is Mon, with 18% of weekly flights leaving on this day.

When to book flights from London to Boston

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

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

Fastest flight time

Direct flights

Airports in Boston

How far is London to Boston Logan Intl by plane?

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

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

What documentation or ID do you need to fly to Boston Logan Intl Airport?

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

Travelling to a place near Boston?

Why use momondo?

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

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

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

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

An easier way to manage your Boston 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 States

Airports servicing Massachusetts