CA $450 Cheap Flights from Buffalo (BUF) to London (LHR)

View CA $450 flight on Tue, Oct 6, 2026Opens in a new window

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

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Cheap flights from Buffalo (BUF) to London (LHR)

Prices were available within the past 7 days and start at CA $450 for one-way flights and CA $1,031 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

KLM
Wed, May 13 - Sun, May 17
BUF
Buffalo
LHR
London
CA $1,031 Roundtrip, found 5 days ago
CA $1,031
Roundtrip
found 5 days ago
Select KLM flight, departing Wed, May 13 from Buffalo to London, returning Sun, May 17, priced at CA $1,031 found 5 days ago
KLM
Sun, May 10 - Sun, May 17
BUF
Buffalo
LHR
London
CA $1,036 Roundtrip, found 6 days ago
CA $1,036
Roundtrip
found 6 days ago
Select KLM flight, departing Sun, May 10 from Buffalo to London, returning Sun, May 17, priced at CA $1,036 found 6 days ago
Delta
Mon, May 11 - Mon, May 18
BUF
Buffalo
LHR
London
CA $1,041 Roundtrip, found 6 days ago
CA $1,041
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, May 11 from Buffalo to London, returning Mon, May 18, priced at CA $1,041 found 6 days ago
JetBlue Airways
Sat, May 9 - Tue, May 19
BUF
Buffalo
LHR
London
CA $1,209 Roundtrip, found 14 hours ago
CA $1,209
Roundtrip
found 14 hours ago
Select JetBlue Airways flight, departing Sat, May 9 from Buffalo to London, returning Tue, May 19, priced at CA $1,209 found 14 hours ago
British Airways
Sun, Oct 4 - Wed, Oct 7
BUF
Buffalo
LHR
London
CA $1,224 Roundtrip, found 22 hours ago
CA $1,224
Roundtrip
found 22 hours ago
Select British Airways flight, departing Sun, Oct 4 from Buffalo to London, returning Wed, Oct 7, priced at CA $1,224 found 22 hours ago
American Airlines
Sun, Oct 4 - Wed, Oct 7
BUF
Buffalo
LHR
London
CA $1,224 Roundtrip, found 22 hours ago
CA $1,224
Roundtrip
found 22 hours ago
Select American Airlines flight, departing Sun, Oct 4 from Buffalo to London, returning Wed, Oct 7, priced at CA $1,224 found 22 hours ago
United
Tue, Aug 25 - Tue, Sep 8
BUF
Buffalo
LHR
London
CA $1,244 Roundtrip, found 1 day ago
CA $1,244
Roundtrip
found 1 day ago
Select United flight, departing Tue, Aug 25 from Buffalo to London, returning Tue, Sep 8, priced at CA $1,244 found 1 day ago
Air Canada
Wed, Sep 2 - Tue, Sep 8
BUF
Buffalo
LHR
London
CA $1,254 Roundtrip, found 5 days ago
CA $1,254
Roundtrip
found 5 days ago
Select Air Canada flight, departing Wed, Sep 2 from Buffalo to London, returning Tue, Sep 8, priced at CA $1,254 found 5 days ago
Swiss International Air Lines
Thu, Aug 27 - Thu, Sep 10
BUF
Buffalo
LHR
London
CA $1,287 Roundtrip, found 1 day ago
CA $1,287
Roundtrip
found 1 day ago
Select Swiss International Air Lines flight, departing Thu, Aug 27 from Buffalo to London, returning Thu, Sep 10, priced at CA $1,287 found 1 day ago
Virgin Atlantic
Thu, May 7 - Fri, May 15
BUF
Buffalo
LHR
London
CA $1,291 Roundtrip, found 14 hours ago
CA $1,291
Roundtrip
found 14 hours ago
Select Virgin Atlantic flight, departing Thu, May 7 from Buffalo to London, returning Fri, May 15, priced at CA $1,291 found 14 hours ago

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 centre is 52 minutes. Flights from CA $2,099
LGW
Gatwick
Average driving time to city centre52 min
Flights from CA $2,099

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

January is typically the cheapest month to fly

From CA $848 - CA $1,328 per traveller.

Frequently asked questions

How much does a flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to London (LHR-Heathrow) cost?
One-way flights typically cost between $743 and $4,134 and return flights often range between $3,230 and $11,135. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.
What is the cheapest month to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to London (LHR-Heathrow)?
January is typically the cheapest month to fly from Buffalo Niagara Intl. (BUF) to London Heathrow (LHR), with average round-trip fares of approximately 1710 CAD. This is about 21% lower than the average price throughout the year. January sees lower prices because it falls after the holiday travel rush, when demand drops and airlines compete for bookings. March and September are also good months to find deals on this route.
How do I find cheap flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to London (LHR-Heathrow)?
To find a cheap flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to London (LHR-Heathrow), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to London (LHR-Heathrow)?
When looking for the best time to fly from Buffalo Niagara International Airport (BUF) to London Heathrow (LHR), it's a bit of a balancing act between price and popularity, based on booking data from the past year. January and September tend to be the cheapest months, with average round-trip flights around 1710 CAD. However, the most popular months for travel are August and October, which means you'll find plenty of flight options during those times. If you're prioritizing savings, aim for January or September. If you prefer more choice and don't mind potentially higher fares, August and October are when many travelers choose to fly.
How many flights per day from Buffalo, NY (BUF-Buffalo Niagara Intl.) to London (LHR-Heathrow)?
There are approximately 56 connecting flights per day from Buffalo Niagara Intl. (BUF) to London Heathrow (LHR). Some common connection points include John F. Kennedy Intl. (JFK), Logan Intl. (BOS), and O'Hare Intl. (ORD).
What is the earliest flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to London (LHR-Heathrow)?
The earliest flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to London (LHR-Heathrow) typically departs at approximately 5:35 AM local time, operated by airlines such as JetBlue Airways and American Airlines. This is a seasonal service active in July and August. An early departure like this can help you maximize your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to London (LHR-Heathrow)?
You'll typically find the most flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to London (LHR-Heathrow) on a Friday, with around 50 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Delta Air Lines, United Airlines, and American Airlines.
What are the most popular departure times for flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to London (LHR-Heathrow)?
The most popular departure times for flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to London (LHR-Heathrow) are in the afternoon, from 3pm to 6pm. About 31% of passengers prefer this time. Many major carriers, including Delta, Virgin Atlantic and British Airways, offer flights during this window. This timing works well because it allows you to have a productive morning before heading to the airport, and you'll arrive in London ready to start your evening or get a good night's rest.
How long does it take to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to London (LHR-Heathrow)?
Flying from BUF to LHR with a connection usually takes about 10 hours, traveling roughly 3,543 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Buffalo, NY (BUF-Buffalo Niagara Intl.) to London (LHR-Heathrow)?
Select the "Business class" and "First class" filters when looking for BUF to LHR flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to London (LHR-Heathrow) flight with Expedia?
It's easy to earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to London (LHR-Heathrow) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for London from Buffalo Niagara Intl. (BUF)?
When traveling from Buffalo Niagara Intl. (BUF) to London, you can fly into London City (LCY), Heathrow (LHR) and Gatwick (LGW). Some flights may connect through major hubs like Hartsfield-Jackson Atlanta Intl. (ATL), Detroit Metropolitan Wayne County (DTW), Washington Dulles Intl. (IAD) before reaching London. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Buffalo, NY (BUF-Buffalo Niagara Intl.) to London (LHR-Heathrow) at the last minute?
Typically, booking a last minute flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to London (LHR-Heathrow) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Buffalo, NY (BUF-Buffalo Niagara Intl.) to London (LHR-Heathrow) flight and hotel package?
Securing a Buffalo, NY (BUF-Buffalo Niagara Intl.) to London (LHR-Heathrow) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to London (LHR-Heathrow)?
If you booked your Buffalo, NY (BUF-Buffalo Niagara Intl.) to London (LHR-Heathrow) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

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, Iberia, Icelandair, JetBlue Airways, KLM, LOT-Polish Airlines, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, United, Virgin Atlantic
Roundtrip price
CA $1,031
Distance
5668 km

Book with confidence

Buffalo to London Flights

The easy way to book your flights from Buffalo to London 

With Expedia, it’s simple to find and book flights to London from Buffalo whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Heathrow, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Buffalo to London today, tomorrow, or this week.  

 

Save dollars with cheap flights from Buffalo Niagara Intl., BUF to Heathrow, LHR 

Sort your search results by price to find great deals on your flight from Buffalo to London—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to London from Buffalo currently is just CA $1,031 rising to CA $1,291.  

Here are more money-saving tips: 

  • Fly in May when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to London  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to London from Buffalo 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to London with Expedia today.

Buffalo to London Flights

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