Cheap Flights from Boston to London

Cheapest flights from Boston to London

Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Boston to London. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.

Cheapest one way flight

$233

Icelandair

1 layover

18h 40m

12/08/2026

The cheapest one-way flight from Boston to London departs on 12/08/2026, is operated by Icelandair and costs $233

Cheapest round trip flight

$606

SATA

2 layovers

1d 8h

11/13/2026

The cheapest roundtrip flight from Boston to London departs on 11/13/2026, is operated by SATA and costs $606

The fastest flight

6h 45m

Fastest flight from Boston to London takes 6h 45m

Remember that on average the ideal time to book flights is 2 months before departure!

Airfare from Boston to London by month

The cost of a one-way flight from Boston to London ranges from $233 (December 2026) to $274 (January 2027). On average, the ticket price is about $254–$255.

December 2026

Lowest price

on average:

$233

January 2027

Highest price

on average:

$274

Avg Price

Price dynamics

Flight prices from Boston to London barely change from month to month. You can comfortably choose any convenient dates — there won't be a significant overpayment.

Cheaper and more expensive periods

There is a slight difference: it's a bit cheaper in November 2026–December 2026 (averaging $243) and slightly more in January 2027–April 2027 ($264). But overall, the difference is small.

Best time to buy

On this route, you don't need to target specific months — prices are stable. The difference between the cheapest and most expensive period is only 8%. Book whenever it's convenient.

Price predictability

Monthly price variation is just 5.8%. Ticket costs on this route are among the most predictable.

Airlines operating on route

More than 11 airlines operate flights from Boston to London, including Iberia, JetBlue Airways, KLM, British Airways, Virgin Atlantic, American Airlines, Icelandair, TAP Portugal, Jazz, Air Canada, and United Airlines. This is a popular route, so passengers can choose tickets based on budget and preferences. Ticket prices start from $233, and our service lets you instantly compare all options. The variety of offers simplifies planning: you can choose budget fares or more comfortable options with baggage included or extra services. We help you find the best deals so your trip is cost-efficient.

starting at $264

starting at $292

starting at $289

starting at $299

starting at $331

starting at $318

starting at $233

starting at $254

starting at $271

starting at $273

starting at $286

Non-stop flights from Boston to London

A non-stop flight is the most convenient and comfortable way to fly from Boston to London, despite the fact that sometimes flights with transfers can cost significantly less.

Boston — London

BOS — LON

11/06/2026

Departure

Direct flight

IB4027

starting at $264

Boston — London

BOS — LON

11/26/2026

Departure

Direct flight

B61620

starting at $292

Boston — London

BOS — LON

12/08/2026

Departure

Direct flight

KL4817

starting at $289

Boston — London

BOS — LON

12/10/2026

Departure

Direct flight

IB3599

starting at $303

Boston — London

BOS — LON

12/12/2026

Departure

Direct flight

BA212

starting at $299

Boston — London

BOS — LON

11/12/2026

Departure

Direct flight

BA212

starting at $372

Boston — London

BOS — LON

01/29/2027

Departure

Direct flight

B61620

starting at $313

Boston — London

BOS — LON

12/04/2026

Departure

Direct flight

VS5984

starting at $331

Boston — London

BOS — LON

11/07/2026

Departure

Direct flight

VS5984

starting at $411

Boston — London

BOS — LON

11/19/2026

Departure

Direct flight

BA6963

starting at $453

Schedule of direct flights from Boston to London

The only airline operating direct flights from Boston to London is American Airlines. Flights operate every day.

American Airlines

Every day

starting at $322

Boston airports overview

Logan International Airport

•

BOS

4km

Primary airport serving Boston and the New England region, offering domestic and international flights with multiple terminals and direct public transit, ferry, and road connections to downtown.

Pease Air Force Base

•

PSM

93km

Near Portsmouth, New Hampshire; a joint military–civil airfield serving military operations and civilian flights, convenient for travel to the Seacoast region and southern New Hampshire.

•

London airports overview

London City Airport

•

LCY

2km

London Gatwick Airport

•

LGW

43km

London Heathrow Airport

•

LHR

36km

Major international hub serving London with extensive long‑haul and short‑haul connections, multiple terminals, and frequent rail and bus links to the city center.

London Luton Airport

•

LTN

51km

London Southend Airport

•

SEN

45km

Serves the eastern Greater London area and Southend-on-Sea, offering domestic and limited international routes with a compact terminal and a dedicated rail link for convenient access to central London.

Stansted Airport

•

STN

45km

Serving London and the East of England about 50 km northeast of central London, it handles primarily low-cost and international flights. Frequent rail and coach links provide direct connections to central London and regional destinations.

•

Frequently asked questions (FAQ)

Answers to questions about the route that travelers are most interested in.

What is the cheapest price for flights from Boston to London?

The cheapest flight ticket from Boston to London according to data for the last 48 hours costs $233

When is the best time to buy air tickets on the route Boston — London?

Often the best time to buy tickets from Boston to London is 2 months before departure.

When is the cheapest time of year to fly from Boston to London?

Based on statistics over the past years, the lowest prices for flights from Boston to London can be found flying in these months: December, November, April.

How long does it take to fly from Boston to London?

The fastest flights from Boston to London start from 6 hours 45 minutes in the air.

Which airline can fly direct from Boston to London?

The following airlines operate direct flights on the route Boston — London: Iberia, JetBlue Airways, KLM

Special offers and sales on air tickets from Boston to London

We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.

We couldn't find any special offers for flights from Boston to London

Alternative routes

New Bedford ➜ London•New Haven ➜ London•Manchester ➜ London•New York ➜ London•Providence ➜ London•Portland ➜ London•Stamford ➜ London•Boston ➜ Bournemouth•Boston ➜ Brighton•Boston ➜ Cambridge•Boston ➜ Coventry•Boston ➜ Milton Keynes•Boston ➜ Norwich•Boston ➜ Leicester•Boston ➜ Southampton•Boston ➜ Reading•Boston ➜ Swindon

•••••••••••••••••••

Price dynamics

Flight prices from Boston to London barely change from month to month. You can comfortably choose any convenient dates — there won't be a significant overpayment.

Cheaper and more expensive periods

There is a slight difference: it's a bit cheaper in November 2026–December 2026 (averaging $243) and slightly more in January 2027–April 2027 ($264). But overall, the difference is small.

Best time to buy

On this route, you don't need to target specific months — prices are stable. The difference between the cheapest and most expensive period is only 8%. Book whenever it's convenient.

Price predictability

Monthly price variation is just 5.8%. Ticket costs on this route are among the most predictable.

Boston — London

BOS — LON

11/06/2026

Departure

Direct flight

IB4027

starting at $264

Boston — London

BOS — LON

11/26/2026

Departure

Direct flight

B61620

starting at $292

Boston — London

BOS — LON

12/08/2026

Departure

Direct flight

KL4817

starting at $289

Boston — London

BOS — LON

12/10/2026

Departure

Direct flight

IB3599

starting at $303

Boston — London

BOS — LON

12/12/2026

Departure

Direct flight

BA212

starting at $299

Boston — London

BOS — LON

11/12/2026

Departure

Direct flight

BA212

starting at $372

Boston — London

BOS — LON

01/29/2027

Departure

Direct flight

B61620

starting at $313

Boston — London

BOS — LON

12/04/2026

Departure

Direct flight

VS5984

starting at $331

Boston — London

BOS — LON

11/07/2026

Departure

Direct flight

VS5984

starting at $411

Boston — London

BOS — LON

11/19/2026

Departure

Direct flight

BA6963

starting at $453

starting at $264

starting at $292

starting at $289

starting at $299

starting at $331

starting at $318

starting at $233

starting at $254

starting at $271

starting at $273

starting at $286

What is the cheapest price for flights from Boston to London?

The cheapest flight ticket from Boston to London according to data for the last 48 hours costs $233

When is the best time to buy air tickets on the route Boston — London?

Often the best time to buy tickets from Boston to London is 2 months before departure.

When is the cheapest time of year to fly from Boston to London?

Based on statistics over the past years, the lowest prices for flights from Boston to London can be found flying in these months: December, November, April.

How long does it take to fly from Boston to London?

The fastest flights from Boston to London start from 6 hours 45 minutes in the air.

Which airline can fly direct from Boston to London?

The following airlines operate direct flights on the route Boston — London: Iberia, JetBlue Airways, KLM

Cheap Flights from Boston to London

Compare airlines, prices, and flight durations for your trip

Cheapest flights from Boston to London

Cheapest one way flight

$233

Icelandair

1 layover

18h 40m

12/08/2026

Cheapest round trip flight

$606

SATA

2 layovers

1d 8h

11/13/2026

The fastest flight

6h 45m

Airfare from Boston to London by month

December 2026

on average:

$233

January 2027

on average:

$274

Price dynamics

Cheaper and more expensive periods

Best time to buy

Price predictability

Airlines operating on route

Non-stop flights from Boston to London

Schedule of direct flights from Boston to London

Boston airports overview

Logan International Airport

Pease Air Force Base

London airports overview

London City Airport

London Gatwick Airport

London Heathrow Airport

London Luton Airport

London Southend Airport

Stansted Airport

Frequently asked questions (FAQ)

Special offers and sales on air tickets from Boston to London

Alternative routes

December 2026

on average:

$233

January 2027

on average:

$274

Price dynamics

Cheaper and more expensive periods

Best time to buy

Price predictability

Logan International Airport

Pease Air Force Base

Cheapest one way flight

$233

Icelandair

1 layover

18h 40m

12/08/2026

Cheapest round trip flight

$606

SATA

2 layovers

1d 8h

11/13/2026

The fastest flight

6h 45m

Direct flights

Several times a week

Earliest flight

7:30 AM

Latest flight

10:11 PM

Average flight duration

6h 45m

Direct flights count

68