Question 1

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

Accepted Answer

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.

Question 2

Which airport is the most popular for stopovers for flights between Boston and London?

Accepted Answer

Reykjavik (KEF) was the most common stop: 50% of momondo users choosing one-stop flights on this route connected there.

Question 3

What is the cheapest month to fly to London?

Accepted Answer

The cheapest month to fly to London from Boston is in October. Flight prices, which tend to average around £378, are often lower during this time because this is during the off-season. The month of September is another great option to travel to London, with average flight prices from Boston averaging around £398.

Question 4

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

Accepted Answer

As of February 2026, 208 flights take off from Boston and land in London each week. The most common flight departure day for this route is Sat, with 17% of weekly flights taking off on this day.

Question 5

How often are flights from Boston to London delayed?

Accepted Answer

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 140 minutes.

Question 6

Which stopover airport has the shortest connection time from Boston to London?

Accepted Answer

Amsterdam (AMS) has the shortest average stopover time for this route: 1h 00m.

Question 7

How have Boston to London flight prices changed over time?

Accepted Answer

As of February 2026, prices for Boston to London flights are approximately 0% more expensive when compared to flights at the same time last year.

Question 8

Which airlines fly to London?

Accepted Answer

Virgin Atlantic, British Airways and Iberia are the top three most popular airlines that fly to London from Boston according to our data. Virgin Atlantic is the first choice among our users, with 38% of people opting to fly with this airline when travelling to London. Keep in mind that there are 9 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Question 9

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

Accepted Answer

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.

Question 10

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

Accepted Answer

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.

Question 11

Which stopover airport offers the lowest fares from Boston to London?

Accepted Answer

Flights via Shannon (SNN) offer the lowest average return price of £351.

Question 12

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

Accepted Answer

The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as £483. Flights in the morning are often more expensive, with an average ticket price of £526.

Question 13

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

Accepted Answer

The number of flights available between Boston and London is 29 per day as of February 2026. The most frequent departure time is 19:00, with 78% of daily flights leaving in the evening.

Question 14

Can stopping save me money on Boston to London flights?

Accepted Answer

No. A direct flight is the cheapest option for a flight between Boston to London.

Question 15

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

Accepted Answer

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 £463 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 £446 on momondo.

Question 16

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

Accepted Answer

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

Question 17

Which stopover airport has the shortest travel time from Boston to London?

Accepted Answer

Flights connecting via Shannon (SNN) have the shortest average one-way travel time: 8h 50m.

Question 18

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

Accepted Answer

Our data shows that Monday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £434. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Boston to London for around £538.

Question 19

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

Accepted Answer

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

Question 20

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

Accepted Answer

There are 4 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.

Question 21

Which airlines fly direct from Boston to London?

Accepted Answer

There is a really good choice of flights from Boston to London. Iberia, Finnair, Virgin Atlantic, Alaska Airlines and Aer Lingus all fly direct routes from Boston Logan International (BOS) to London Heathrow (LHR), and the flight time is around six hours and 30 minutes. If you are willing to take an indirect flight, you can travel with Tap Air Portugal on a one-way flight from Boston to London Heathrow via Lisbon. The stopover will be around one hour and 50 minutes. Aer Lingus also offers an indirect option, transiting through their Dublin (DUB) hub. The stopover time will be around two hours and 30 minutes. Air Canada offers a flight to Heathrow via Montreal Pierre Elliott Trudeau International (YUL). This stopover will take around six hours and 48 minutes. Air Canada also offers a flight-share route with Air Transat, stopping in Toronto Pearson (YYZ) that will bring you into London Gatwick (LGW). The transit time is around three hours and 35 minutes. Icelandair runs a one-way flight from Boston to London, arriving in Heathrow via Reykjavik.

What is the best way to get in and out of airports in Boston and London?

Getting to Logan International from Boston city centre is very straightforward, with a range of public transport options. The MBTA Blueline subway is an easy and cheap route to Boston Logan. The Logan Express bus service is also a convenient option taking you from the city centre directly to the airport terminal. It also connects to the airport from Braintree, Framingham and Woburn, among others. There are additional bus services through Boston Express Bus, C&J Bus Lines and Cape Bus. Arriving into London Heathrow, you will find there are also many options for connecting with Central London. You can take the Heathrow Express, which is a direct, high-speed train service that will bring you to London Paddington in roughly 15 minutes. You can also take the London Underground on the Piccadilly Line into Central London. The journey will take around 50 minutes. There are bus services operated by the National Express bus company, as well as other providers such as Megabus. The same operators run buses from London Stansted (STN) and Gatwick. There are also direct train lines from the stations at each of the London airports.

What are the benefits of the different airports in Boston and London?

Boston Logan International is a major international airport. It has excellent passenger amenities, including hotels on the airport campus, business and VIP lounges, retail, restaurants, cafes and bars, cash machines, currency exchange desks and fast-track services through the airport security and passport control. It has a number of nurseries, a pet relief area and a dedicated car hire centre. London Heathrow and the other London airports are also very well resourced with passenger amenities. You will find a choice of hotels, excellent business lounges, restaurants, cafes and bars, retail areas, cash machines, currency exchange desks, information kiosks, mother and baby-changing areas, children’s play areas and quiet waiting areas. All airports on this route have their own team to assist passengers travelling with limited mobility or sensory issues. To access them, simply alert your airline at least 48 hours in advance.

Question 22

Which cities can you reach easily once you arrive at London airports?

Accepted Answer

All London airports are located alongside motorways and major A roads, making them easily accessible and well connected to other parts of the UK. By travelling into Central London, you can connect with any UK region or city. Each airport also allows easy access to cities in its region. Heathrow, for example, allows quick connections by road or rail to cities such as Oxford, Birmingham or Newbury. London Gatwick connects well with cities such as Brighton, Worthing or Southampton.

Question 23

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

Accepted Answer

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

Question 24

How many operators does momondo search for flights from Boston Logan Intl Airport to London?

Accepted Answer

There are 9 operators available for flights from Boston Logan Intl Airport to London as of February 2026.

Question 25

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

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 Boston Logan Intl Airport to London.

Question 26

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

Accepted Answer

The travel and health documents you'll need for your trip to London may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best price found	£165
Fastest flight time	6h 30m
Direct flights	Every day
Airports in London	6 airports

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom £282	Free Cancellation	Rating 7.1 606 reviews	Search Icelandair flights
JetBlue	PriceFrom £348	Free Cancellation	Rating 7.2 2,893 reviews	Search JetBlue flights
Finnair	PriceFrom £350	Free Cancellation	Rating 7.6 1,357 reviews	Search Finnair flights
KLM	PriceFrom £353	Free Cancellation	Rating 7.7 1,448 reviews	Search KLM flights
Virgin Atlantic	PriceFrom £356	Free Cancellation	Rating 7.5 678 reviews	Search Virgin Atlantic flights
Iberia	PriceFrom £360	Free Cancellation	Rating 7.0 3,102 reviews	Search Iberia flights
British Airways	PriceFrom £368	Free Cancellation	Rating 6.7 7,711 reviews	Search British Airways flights
Delta	PriceFrom £378	Free Cancellation	Rating 7.9 8,138 reviews	Search Delta flights
Air France	PriceFrom £383	Free Cancellation	Rating 7.4 1,531 reviews	Search Air France flights

Cheap flights from Boston to London from £163

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 6/3. 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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