฿6,475 Cheap Flights from Boston (BOS) to London (LHR)

View ฿6,475 flight on Sun, 10 Aug 2025Opens in a new window

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

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at ฿6,475 for one-way flights and ฿15,905 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, 26 Aug - Thu, 28 Aug
BOS
Boston
LHR
London
฿15,905 Return, found 1 day ago
฿15,905
Return
found 1 day ago
Select United flight, departing Tue, 26 Aug from Boston to London, returning Thu, 28 Aug, priced at ฿15,905 found 1 day ago
United
Tue, 26 Aug - Wed, 3 Sep
BOS
Boston
LHR
London
฿16,135 Return, found 1 day ago
฿16,135
Return
found 1 day ago
Select United flight, departing Tue, 26 Aug from Boston to London, returning Wed, 3 Sep, priced at ฿16,135 found 1 day ago
Air Canada
Tue, 19 Aug - Tue, 26 Aug
BOS
Boston
LHR
London
฿16,200 Return, found 1 hour ago
฿16,200
Return
found 1 hour ago
Select Air Canada flight, departing Tue, 19 Aug from Boston to London, returning Tue, 26 Aug, priced at ฿16,200 found 1 hour ago
United
Tue, 26 Aug - Tue, 2 Sep
BOS
Boston
LHR
London
฿16,235 Return, found 1 day ago
฿16,235
Return
found 1 day ago
Select United flight, departing Tue, 26 Aug from Boston to London, returning Tue, 2 Sep, priced at ฿16,235 found 1 day ago
Air Canada
Tue, 26 Aug - Fri, 29 Aug
BOS
Boston
LHR
London
฿16,245 Return, found 1 day ago
฿16,245
Return
found 1 day ago
Select Air Canada flight, departing Tue, 26 Aug from Boston to London, returning Fri, 29 Aug, priced at ฿16,245 found 1 day ago
Delta
Tue, 19 Aug - Wed, 27 Aug
BOS
Boston
LHR
London
฿16,765 Return, found 3 days ago
฿16,765
Return
found 3 days ago
Select Delta flight, departing Tue, 19 Aug from Boston to London, returning Wed, 27 Aug, priced at ฿16,765 found 3 days ago
United
Mon, 18 Aug - Sat, 23 Aug
BOS
Boston
LHR
London
฿16,855 Return, found 1 hour ago
฿16,855
Return
found 1 hour ago
Select United flight, departing Mon, 18 Aug from Boston to London, returning Sat, 23 Aug, priced at ฿16,855 found 1 hour ago
Icelandair
Sun, 17 Aug - Mon, 25 Aug
BOS
Boston
LHR
London
฿17,305 Return, found 1 hour ago
฿17,305
Return
found 1 hour ago
Select Icelandair flight, departing Sun, 17 Aug from Boston to London, returning Mon, 25 Aug, priced at ฿17,305 found 1 hour ago
Air Canada
Sun, 14 Dec - Thu, 18 Dec
BOS
Boston
LHR
London
฿17,695 Return, found 4 days ago
฿17,695
Return
found 4 days ago
Select Air Canada flight, departing Sun, 14 Dec from Boston to London, returning Thu, 18 Dec, priced at ฿17,695 found 4 days ago
British Airways
Thu, 9 Oct - Tue, 14 Oct
BOS
Boston
LHR
London
฿17,795 Return, found 4 days ago
฿17,795
Return
found 4 days ago
Select British Airways flight, departing Thu, 9 Oct from Boston to London, returning Tue, 14 Oct, priced at ฿17,795 found 4 days ago

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

November is typically the cheapest month to fly

From ฿12,443 - ฿19,552 per traveller.

Graph displaying average flight prices per month

Flight from Boston to London route information
Origin airport
Logan Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, Swiss International Air Lines, TAP Portugal, United
Return price
฿15,905
Distance
5210 km
Average flight time
11 hours 40 mins

Perfect flights from Boston to London

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Boston to London. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Logan Intl. to Heathrow ticket options cater to your travel preferences, with incredible one-way fares from ฿6,475 and roundtrip prices from ฿15,905. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Heathrow and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in London.

Frequently asked questions

How much is a flight from Logan Intl. Airport to LHR?
If you're travelling between BOS and London Heathrow, round-trip flights start from ฿15,905. This figure is based on airfares listed within the last 7 days on Expedia for flights departing within the next year, so don't let a good deal slip through your fingers. Book now and save yourself both money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Logan Intl. Airport to Heathrow Airport (LHR)?
Every airline has a different set of terms and conditions. If you decide to cancel your holiday, head to our Customer Service Portal.
How do I find cheap flights from Logan Intl. Airport to London Heathrow that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for BOS to LHR flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Logan Intl. Airport to Heathrow Airport?
With around 5,200 kilometres separating Boston and Hounslow, your flight will be a long one. Pack wisely and make your journey more comfortable. Things like an eye mask and a quality travel pillow can make all the difference.
Which airlines fly direct from BOS to LHR?
If you need to get from BOS to Heathrow Airport, you're spoiled for choice. Among the top carriers that service this route are:

  • British Airways - (BA) with 91 monthly flights
  • JetBlue Airways - (B6) with 30 monthly flights
  • Virgin Atlantic - (VS) with 30 monthly flights
  • American Airlines - (AA) with 30 monthly flights
  • United Airlines - (UA) with 30 monthly flights
  • Delta Air Lines - (DL) with 30 monthly flights

Are BOS to LHR flight tickets cheaper when they're purchased at the last minute?
Booking your trip from BOS to Heathrow Airport (LHR) at the last minute could save you some serious cash. However, it could end up costing a great deal more! If you'd prefer not to take the risk, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to a year in advance. If your preferred carrier hasn't released tickets yet, check back frequently as deals are updated on Expedia all the time.

Explore a world of travel with Expedia

London Airports

London

*Available to Expedia members.