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

Airfare is below average for this route at the moment. London to Boston flights typically cost between £391 and £555 in September. The cheapest return flight price found within the last 3 days was £362 on United Airlines (5 Sept-12 Sept).

Question 1

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

Accepted Answer

Flights via Zurich (ZRH) offer the fastest connection on this route, with an average stopover time of 1h 09m.

Question 2

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

Accepted Answer

Airfare is below average for this route at the moment.London to Boston flights typically cost between £391 and £555 in September.
The cheapest return flight price found within the last 3 days was £362 on United Airlines (5 Sept-12 Sept).

Question 3

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

Accepted Answer

Barcelona (BCN) is the most affordable one-stop option, with an average return flight price of £272.

Question 4

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

Accepted Answer

Reykjavik (KEF) – chosen by Cheapflights users on 67% of one-stop itineraries from London to Boston on Cheapflights.

Question 5

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

Accepted Answer

Flights via Dublin (DUB) have the shortest average one-way travel time for one-stop routes: 10h 19m.

Question 6

How long is the flight from London to Boston?

Accepted Answer

There are many flights that can get you from London to Boston in 11h 45m. Fly via United Airlines, Scandinavian Airlines, or TAP AIR PORTUGAL 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.

Question 7

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

Accepted Answer

According to our current data, Aer Lingus (£7), PLAY (£266), and TAP AIR PORTUGAL (£282) offers the cheapest pricing from London to Boston. Users have found that Aer Lingus is 98% cheaper than the other options available to this destination.

Question 8

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

Accepted Answer

The best time to book flights from London to Boston is 52 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.

Question 9

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

Accepted Answer

Currently, October is the cheapest month in which you can book a flight from London to Boston (average of £10). Flying from London to Boston in July is currently the most expensive (average of £724). 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.

Question 10

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

Accepted Answer

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

Question 11

Weekly flight availability from London to Boston

Accepted Answer

The most flights from LON to BOS are scheduled on a Monday (38 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (34 on average).

Question 12

E

Accepted Answer

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.

Question 13

E

Accepted Answer

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).

Question 14

What are the most popular routes from London to Boston?

Accepted Answer

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

Question 15

What are the cheapest flights from London to Boston?

Accepted Answer

Looking for the cheapest flight from London to Boston? While on average our users pay £1,334, our data indicates the cheapest price to be £360. The most popular route (London Heathrow - Boston Logan Intl), is priced around £331.

Question 16

What are the most reliable airlines from London to Boston?

Accepted Answer

The top 3 most reliable airlines when flying from London to Boston are Scandinavian Airlines (92%), JetBlue (90%) and TAP AIR PORTUGAL (90%).

Question 17

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

Accepted Answer

Before booking your flight from London to Boston check out the most popular airlines for this route: American Airlines, Air Canada or Air France.

Question 18

What is the cheapest day to fly round-trip from London to Boston?

Accepted Answer

Saturday flights are found to be more expensive to fly from London to Boston. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Boston.

Question 19

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

Accepted Answer

Travelers have found it’s best to book a flight 53 days in advance to save up to 31% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 53 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from London to Boston 1-2 weeks in advance for as low as £404, or £646 for flights within the next 24 hours.

Question 20

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

Accepted Answer

Our data shows that September tends to be the cheapest month to fly to Boston from London. Users have commonly found prices around £455 for the month, but tickets can be as low as £303. Due to multiple factors, prepare for potentially higher prices in December.

Question 21

What is the cheapest time of day to fly from LON to BOS?

Accepted Answer

It’s optimal to fly from London to Boston at midday. By choosing this option you can save up to 29% on the cost of your flight, compared to a flight in the evening.

Question 22

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

Accepted Answer

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. 17 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 36 inbound flights from London per day.

Question 23

Can I find deals for flights from London to Boston that include hotel bookings?

Accepted Answer

Yes. In addition to deals on London to Boston flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 24

How can I find direct flights from London to Boston?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Boston.

Question 25

Can I find deals for business class flights from London to Boston?

Accepted Answer

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.

Question 26

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

Accepted Answer

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!

Question 27

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

Accepted Answer

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.

Question 28

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

Accepted Answer

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

Question 29

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

Accepted Answer

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.

Round-trip from	£362
One-way from	£320
Popular in	December
Cheapest in	September
Average price	£536
Good round-trip deal	£419 or less
Good one-way deal	£368 or less

Airline	Cheapest	Average	Flexibility	On-time
Aer Lingus	Cheapest£7	Average£265	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
PLAY	Cheapest£266	Average£341	FlexibilityNo cancel fee	On-timeN/A	Search PLAY flights
TAP AIR PORTUGAL	Cheapest£282	Average£514	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Scandinavian Airlines	Cheapest£299	Average£461	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Icelandair	Cheapest£303	Average£442	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Lufthansa	Cheapest£304	Average£432	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
British Airways	Cheapest£336	Average£443	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
United Airlines	Cheapest£339	Average£402	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Air France	Cheapest£346	Average£439	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Delta	Cheapest£350	Average£545	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights

Cheap flights from London to Boston from £320

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 17/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London to Boston Logan Intl are usually found in September or February, booked 52 days in advance, depart on a Wednesday or Thursday and return on a Monday

Cheap flight deals from London to Boston

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Find 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 22 August 2025.

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 22 August 2025.

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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

Everything you need to know about your flight from London to Boston

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

Use this chart to determine the optimal time to book a return flight from London to Boston. Price data was last updated on 8 August 2025.

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 22 August 2025.

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 16 December 2024.

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 22 August 2025.

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

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.

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.

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.

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.

Reviews of airlines servicing Boston

See what other customers who have flown with Air France, Virgin Atlantic, andIcelandair 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

Find useful and relevant information for your journey from London to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

How long is the flight from London to Boston?

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

What are the most popular routes from London to Boston?

What are the most reliable airlines from London to Boston?

What are the cheapest flights from London to Boston?

Can I find deals for flights from London to Boston that include hotel bookings?

How can I find direct flights from London to Boston?

Can I find deals for business class flights from London to Boston?

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

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Top 10 airlines flying from London to Boston

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

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

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

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

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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 22 August 2025.