$181 Cheap Flights from Boston (BOS) to London (LHR)

View $181 flight on Tue, Oct 7, 2025Opens in a new window

Popular airlines from Logan International Airport (BOS) to Heathrow Airport (LHR)

Cheap Flights from Boston to London (BOS-LHR)

Prices were available within the past 7 days and start at $181 for one-way flights and $369 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Iberia
Sun, Oct 12 - Mon, Oct 13
BOS
Boston
LHR
London
$369 Roundtrip, found 20 hours ago
$369
Roundtrip
found 20 hours ago
Select Iberia flight, departing Sun, Oct 12 from Boston to London, returning Mon, Oct 13, priced at $369 found 20 hours ago
American Airlines
Mon, Nov 24 - Tue, Nov 25
BOS
Boston
LHR
London
$374 Roundtrip, found 1 day ago
$374
Roundtrip
found 1 day ago
Select American Airlines flight, departing Mon, Nov 24 from Boston to London, returning Tue, Nov 25, priced at $374 found 1 day ago
British Airways
Fri, Nov 7 - Sun, Nov 9
BOS
Boston
LHR
London
$374 Roundtrip, found 9 hours ago
$374
Roundtrip
found 9 hours ago
Select British Airways flight, departing Fri, Nov 7 from Boston to London, returning Sun, Nov 9, priced at $374 found 9 hours ago
JetBlue Airways
Sun, Feb 8 - Thu, Feb 12
BOS
Boston
LHR
London
$386 Roundtrip, found 1 day ago
$386
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Sun, Feb 8 from Boston to London, returning Thu, Feb 12, priced at $386 found 1 day ago
United
Sun, Sep 21 - Tue, Sep 23
BOS
Boston
LHR
London
$389 Roundtrip, just found
$389
Roundtrip
just found
Select United flight, departing Sun, Sep 21 from Boston to London, returning Tue, Sep 23, priced at $389 just found
TAP Portugal
Wed, Oct 15 - Tue, Oct 21
BOS
Boston
LHR
London
$391 Roundtrip, found 1 day ago
$391
Roundtrip
found 1 day ago
Select TAP Portugal flight, departing Wed, Oct 15 from Boston to London, returning Tue, Oct 21, priced at $391 found 1 day ago
Icelandair
Sun, Apr 12 - Thu, Apr 16
BOS
Boston
LHR
London
$401 Roundtrip, found 1 day ago
$401
Roundtrip
found 1 day ago
Select Icelandair flight, departing Sun, Apr 12 from Boston to London, returning Thu, Apr 16, priced at $401 found 1 day ago
Austrian Airlines
Sat, Apr 18 - Fri, Apr 24
BOS
Boston
LHR
London
$409 Roundtrip, found 18 hours ago
$409
Roundtrip
found 18 hours ago
Select Austrian Airlines flight, departing Sat, Apr 18 from Boston to London, returning Fri, Apr 24, priced at $409 found 18 hours ago
Virgin Atlantic
Mon, Jul 21 - Thu, Jul 31
BOS
Boston
LHR
London
$431 Roundtrip, found 1 hour ago
$431
Roundtrip
found 1 hour ago
Select Virgin Atlantic flight, departing Mon, Jul 21 from Boston to London, returning Thu, Jul 31, priced at $431 found 1 hour ago
Delta
Mon, Jul 21 - Thu, Jul 31
BOS
Boston
LHR
London
$431 Roundtrip, found 1 hour ago
$431
Roundtrip
found 1 hour ago
Select Delta flight, departing Mon, Jul 21 from Boston to London, returning Thu, Jul 31, priced at $431 found 1 hour ago

Find the cheapest month to fly from Boston (BOS) to London (LHR)

November is typically the cheapest month to fly

From $385 - $599 per traveler.

Graph displaying average flight prices per month

Flights from Boston (BOS) to London (LHR)
Origin airport
Logan Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Roundtrip price
$369
Distance
3256 mi
Average flight time
11 hours 41 mins

Boston to London Flights

The cheapest times to fly from Boston to London

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boston to London are during the month of October. You can find some of the cheapest flights from Boston to London with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boston to London

Sunday is one of the best days to book for cheap flights from Boston to London: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Boston to London

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boston to London in 2025. You can also book with separate airlines for your outbound and return journeys, from $181 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boston to London flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Boston to London airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Logan Intl. Airport (BOS) to Heathrow Airport (LHR) cost?
Cheap round-trip fares from Logan Intl. Airport (BOS) to Heathrow Airport (LHR) start at $426. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a JetBlue Airways flight leaving BOS on July 31 2025 and touching down at LHR. The price was last updated on July 6 2025 and has not changed since.
What is the cheapest month to fly from BOS to LHR?
The cheapest flights from BOS to LHR are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Logan Intl. Airport (BOS) to Heathrow Airport (LHR)?
When leaving Logan Intl. Airport (BOS), 5 carriers can take you directly to Heathrow Airport (LHR) without any layovers, including:

  • British Airways
  • JetBlue Airways
  • Delta Air Lines
  • Virgin Atlantic
  • American Airlines

What is the cheapest airline that flies from BOS to LHR?
Fly from BOS to LHR with JetBlue Airways. This airline currently has the cheapest one-way fare on this route, starting from $199. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from BOS on August 18 2025. Prices were last updated on July 6 2025 and have not changed since.
How many flights per day from Logan Intl. Airport (BOS) to Heathrow Airport (LHR)?
With, on average, 5 direct flights departing from Logan Intl. Airport (BOS) to Heathrow Airport (LHR) daily, you'll be up in the air in no time.
What are the most popular departure times for flights from Logan Intl. Airport (BOS) to Heathrow Airport (LHR)?
The 6 PM departures from BOS to LHR are typically the busiest. Prices can be higher for these popular slots. If you're hoping to save money, book during off-peak hours.
What day of the week has the most flights from BOS to LHR?
If you depart on a Thursday, you'll get the largest range of choices for flights from Logan Intl. Airport (BOS) to Heathrow Airport (LHR).
What is the earliest flight from Logan Intl. Airport (BOS) to Heathrow Airport (LHR)?
The first flight of the day leaving from Logan Intl. Airport (BOS) is at around 7:30AM UTC-5. Board this flight and you'll reach Heathrow Airport (LHR) at approximately 6:55PM UTC+0. The total time in the air is 6h 25m.
How long does it take to fly from Logan Intl. Airport (BOS) to Heathrow Airport (LHR)?
It takes around 6 hours and 38 minutes to cover the 3,300 mi from BOS to LHR.
What airline has the least delays from BOS to LHR?
Virgin Atlantic has the best performance for on-time direct flights from Logan Intl. Airport (BOS) to Heathrow Airport (LHR), with an on-time score of 83%. Use the Expedia App to check your flight status before you go and get real-time updates about any trip changes.
What is the best time to fly from Logan Intl. Airport (BOS) to Heathrow Airport (LHR)?
To touch down at Heathrow Airport (LHR) without delays, pick a flight that leaves Logan Intl. Airport (BOS) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for London from Logan Intl. Airport (BOS)?
If you're on a direct flight from Logan Intl. Airport (BOS) to London, Heathrow Airport (LHR) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Logan Intl. Airport (BOS) to Heathrow Airport (LHR) last-minute?
Last-minute fares from BOS to LHR are generally more expensive. To secure the cheapest rates, start looking for flights as soon as possible. That said, if your travel plans are flexible, it's possible to land a cheap ticket just before your departure.
Is it cheaper to book a BOS to LHR flight and hotel package?
Compared with arranging flights and hotels separately, booking a BOS to LHR flight and hotel package with Expedia could lead to significant savings. Better yet, having it all in one place will take the stress out of travel planning. Simply pick your flights and choose from our extensive range of stays, then tailor your trip with extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Logan Intl. Airport (BOS) to Heathrow Airport (LHR)?
If you reserved your BOS to LHR flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

Explore a world of travel with Expedia

*Available to One Key members.