$276 Cheap Flights from Buffalo (BUF) to London (LHR)

View $276 flight on Thu, Nov 27, 2025Opens in a new window

Popular airlines from Buffalo Niagara Intl. Airport (BUF) to Heathrow Airport (LHR)

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Cheap Flights from Buffalo to London (BUF-LHR)

Prices were available within the past 7 days and start at $276 for one-way flights and $493 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Sun, Jan 11 - Sat, Jan 24
BUF
Buffalo
LHR
London
$493 Roundtrip, found 1 day ago
$493
Roundtrip
found 1 day ago
Select Scandinavian Airlines flight, departing Sun, Jan 11 from Buffalo to London, returning Sat, Jan 24, priced at $493 found 1 day ago
Virgin Atlantic
Sun, Jan 11 - Sat, Jan 24
BUF
Buffalo
LHR
London
$512 Roundtrip, found 1 day ago
$512
Roundtrip
found 1 day ago
Select Virgin Atlantic flight, departing Sun, Jan 11 from Buffalo to London, returning Sat, Jan 24, priced at $512 found 1 day ago
Air Canada
Sun, Jan 11 - Sat, Jan 24
BUF
Buffalo
LHR
London
$569 Roundtrip, found 1 day ago
$569
Roundtrip
found 1 day ago
Select Air Canada flight, departing Sun, Jan 11 from Buffalo to London, returning Sat, Jan 24, priced at $569 found 1 day ago
JetBlue Airways
Sat, Apr 4 - Tue, Apr 14
BUF
Buffalo
LHR
London
$592 Roundtrip, found 21 hours ago
$592
Roundtrip
found 21 hours ago
Select JetBlue Airways flight, departing Sat, Apr 4 from Buffalo to London, returning Tue, Apr 14, priced at $592 found 21 hours ago
Scandinavian Airlines
Mon, Apr 13 - Mon, Apr 20
BUF
Buffalo
LHR
London
$596 Roundtrip, found 6 hours ago
$596
Roundtrip
found 6 hours ago
Select Scandinavian Airlines flight, departing Mon, Apr 13 from Buffalo to London, returning Mon, Apr 20, priced at $596 found 6 hours ago
Delta
Tue, Dec 9 - Wed, Dec 24
BUF
Buffalo
LHR
London
$597 Roundtrip, found 5 hours ago
$597
Roundtrip
found 5 hours ago
Select Delta flight, departing Tue, Dec 9 from Buffalo to London, returning Wed, Dec 24, priced at $597 found 5 hours ago
United
Wed, Dec 10 - Thu, Dec 25
BUF
Buffalo
LHR
London
$618 Roundtrip, found 20 hours ago
$618
Roundtrip
found 20 hours ago
Select United flight, departing Wed, Dec 10 from Buffalo to London, returning Thu, Dec 25, priced at $618 found 20 hours ago
Lufthansa
Wed, Nov 5 - Wed, Nov 19
BUF
Buffalo
LHR
London
$626 Roundtrip, found 2 days ago
$626
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Wed, Nov 5 from Buffalo to London, returning Wed, Nov 19, priced at $626 found 2 days ago
Air Canada
Mon, Nov 24 - Tue, Dec 9
BUF
Buffalo
LHR
London
$637 Roundtrip, found 11 hours ago
$637
Roundtrip
found 11 hours ago
Select Air Canada flight, departing Mon, Nov 24 from Buffalo to London, returning Tue, Dec 9, priced at $637 found 11 hours ago
American Airlines
Sat, Apr 4 - Tue, Apr 14
BUF
Buffalo
LHR
London
$641 Roundtrip, found 21 hours ago
$641
Roundtrip
found 21 hours ago
Select American Airlines flight, departing Sat, Apr 4 from Buffalo to London, returning Tue, Apr 14, priced at $641 found 21 hours ago

Find the cheapest month to fly from Buffalo (BUF) to London (LHR)

August is typically the cheapest month to fly

From $518 - $956 per traveler.

Alternative airports near London

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Gatwick LGW. Average driving time to city center is 52 minutes. Flights from $1,900
LGW
Gatwick
Average driving time to city center52 min
Flights from $1,900
Select flight to London City LCY. Closest option available. Average driving time to city center is 21 minutes. Flights from $1,693
LCY
London City
Closest
Average driving time to city center21 min
Flights from $1,693

Frequently asked questions

How much does a flight from Buffalo Niagara Intl. Airport (BUF) to Heathrow Airport (LHR) cost?
Secure a cheap one-way flight from $276 or cheap return flight from $493 from Buffalo Niagara Intl. Airport (BUF) to Heathrow Airport (LHR) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Buffalo Niagara Intl. Airport (BUF) to Heathrow Airport (LHR)?
January is the most affordable month to fly from BUF to LHR. Traveling during quieter months is often the key to landing a great deal.
What is the cheapest airline that flies from Buffalo Niagara Intl. Airport (BUF) to Heathrow Airport (LHR)?
To find the cheapest airline flying from BUF to LHR, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Buffalo Niagara Intl. Airport (BUF) to Heathrow Airport (LHR)?
There are no daily nonstop flights departing from Buffalo Niagara Intl. Airport (BUF) to Heathrow Airport (LHR). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from BUF to LHR?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Buffalo Niagara Intl. Airport (BUF) to Heathrow Airport (LHR)?
Opt for a flight from Buffalo Niagara Intl. Airport (BUF) to Heathrow Airport (LHR) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this are on average 22% more likely to be canceled.**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.
Is it cheaper to buy a plane ticket from Buffalo Niagara Intl. Airport (BUF) to Heathrow Airport (LHR) last-minute?
Waiting until right before your break to book a flight from BUF to LHR often results in higher prices. While you may come across some last-minute offers, they're not always guaranteed. Be flexible with your travel plans for a better chance of landing a bargain.
Is it cheaper to book a BUF to LHR flight and hotel package?
Compared with arranging hotels and flights separately, booking a BUF to LHR flight and hotel package with Expedia could result in significant savings. Better yet, having it all in one place takes the hassle out of planning your trip. Simply secure your flights and choose from our wide range of hotels, then personalize your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Buffalo Niagara Intl. Airport (BUF) to Heathrow Airport (LHR)?
In most cases, you can cancel or reschedule your BUF to LHR flight. However, additional fees may apply, especially if you booked more than 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you want further details, visit our Customer Service portal.

Travel information

Origin airport
Buffalo Niagara Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Icelandair, JetBlue Airways, KLM, LOT-Polish Airlines, Lufthansa, Royal Air Maroc, Scandinavian Airlines, TAP Portugal, United, Virgin Atlantic
Roundtrip price
$492
Distance
3543 mi

Book with confidence

Buffalo to London Flights

The cheapest times to fly from Buffalo 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 Buffalo to London are during the month of January. You can find some of the cheapest flights from Buffalo to London with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Buffalo to London

Sunday is one of the best days to book for cheap flights from Buffalo 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 Buffalo 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 Buffalo to London in 2025. You can also book with separate airlines for your outbound and return journeys, from $276 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 Buffalo 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 Buffalo 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.

 

Buffalo to London Flights

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*Available to One Key members.