Skyscanner

Cheap flights from Buffalo Niagara to London Heathrow

Travelers and cabin class

Compare Buffalo Niagara to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

Book the best London Heathrow fare with no extra fees

Flight deals from Buffalo Niagara to London Heathrow

Looking for a cheap last-minute deal or the best round-trip flight from Buffalo Niagara to London Heathrow? Find the lowest prices on one-way and round-trip tickets right here.
London.C$821 per passenger.Departing Tue, Oct 7, returning Tue, Oct 14.Round-trip flight with KLM and Air France.Outbound indirect flight with KLM, departing from Buffalo Niagara on Tue, Oct 7, arriving in London Heathrow.Inbound indirect flight with Air France, departing from London Heathrow on Tue, Oct 14, arriving in Buffalo Niagara.Price includes taxes and charges.From C$821, select.
London.C$823 per passenger.Departing Sun, Sep 21, returning Tue, Sep 30.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from Buffalo Niagara on Sun, Sep 21, arriving in London Heathrow.Inbound indirect flight with Delta, departing from London Heathrow on Tue, Sep 30, arriving in Buffalo Niagara.Price includes taxes and charges.From C$823, select.
London.C$831 per passenger.Departing Wed, Jan 21, returning Wed, Jan 28.Round-trip flight with jetBlue.Outbound indirect flight with jetBlue, departing from Buffalo Niagara on Wed, Jan 21, arriving in London Heathrow.Inbound indirect flight with jetBlue, departing from London Heathrow on Wed, Jan 28, arriving in Buffalo Niagara.Price includes taxes and charges.From C$831, select.
London.C$834 per passenger.Departing Thu, Dec 4, returning Mon, Dec 15.Round-trip flight with jetBlue.Outbound indirect flight with jetBlue, departing from Buffalo Niagara on Thu, Dec 4, arriving in London Heathrow.Inbound indirect flight with jetBlue, departing from London Heathrow on Mon, Dec 15, arriving in Buffalo Niagara.Price includes taxes and charges.From C$834, select.
London.C$843 per passenger.Departing Sun, Apr 27, returning Sun, May 4.Round-trip flight with jetBlue.Outbound indirect flight with jetBlue, departing from Buffalo Niagara on Sun, Apr 27, arriving in London Heathrow.Inbound indirect flight with jetBlue, departing from London Heathrow on Sun, May 4, arriving in Buffalo Niagara.Price includes taxes and charges.From C$843, select.
London.C$861 per passenger.Departing Fri, Nov 28, returning Thu, Dec 11.Round-trip flight with jetBlue.Outbound indirect flight with jetBlue, departing from Buffalo Niagara on Fri, Nov 28, arriving in London Heathrow.Inbound indirect flight with jetBlue, departing from London Heathrow on Thu, Dec 11, arriving in Buffalo Niagara.Price includes taxes and charges.From C$861, select.
London.C$888 per passenger.Departing Sat, May 17, returning Wed, May 21.Round-trip flight with jetBlue.Outbound indirect flight with jetBlue, departing from Buffalo Niagara on Sat, May 17, arriving in London Heathrow.Inbound indirect flight with jetBlue, departing from London Heathrow on Wed, May 21, arriving in Buffalo Niagara.Price includes taxes and charges.From C$888, select.
London.C$889 per passenger.Departing Tue, Jul 29, returning Wed, Aug 13.Round-trip flight with Delta.Outbound indirect flight with Delta, departing from Buffalo Niagara on Tue, Jul 29, arriving in London Heathrow.Inbound indirect flight with Delta, departing from London Heathrow on Wed, Aug 13, arriving in Buffalo Niagara.Price includes taxes and charges.From C$889, select.

When is the cheapest time to fly from Buffalo Niagara to London Heathrow?

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Buffalo Niagara to London Heathrow flights are currently cheapest in October.
Apr
from C$964
May
from C$888
Jun
from C$1,046
Jul
from C$1,181
Aug
from C$889
Sep
from C$823
Oct
from C$821
Nov
from C$909
Dec
from C$834
Jan
from C$831
Feb
from C$1,217
Mar
Find prices

Buffalo Niagara to London Heathrow: Alternative routes

Compare routes from Buffalo Niagara to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

Buffalo to London: Flight information

The things to know before you go.
Cheapest flight foundC$821
Cheapest month to flyOctober

Finding cheap flights from Buffalo Niagara to London Heathrow: Frequently asked questions

The best price we found for a round-trip flight from Buffalo Niagara to London Heathrow is C$821. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Buffalo Niagara to London Heathrow. But we found flights with one or more stops from C$821.
There are no flights flying from Buffalo Niagara to London Heathrow, as of April 2025.
The cheapest month to fly from Buffalo Niagara to London Heathrow is usually October.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Buffalo Niagara Airport to London Heathrow Airport on Tuesday, October 7, 2025.
No airlines currently offer direct flights between Buffalo Niagara Airport and London Heathrow Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, KLM offers the cheapest flight tickets to London Heathrow.

Travelling from Buffalo Niagara International Airport (BUF) to London Heathrow Airport (LHR): what you need to know

  • London's timezone is UTC+0, making London four hours ahead of Buffalo.

  • Get to the airport on time so you don't miss your BUF to LHR flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid sprinting to your gate.

  • You'll likely experience longer queues during popular months such as August. Arriving up to four hours in advance for international flights and two hours for a domestic departure is a wise move.

  • If you'd like to explore another city along the way, simply uncheck 'Direct flights only' when searching for your ticket from Buffalo Niagara International Airport to London Heathrow Airport. Here are the top stopovers between BUF and LHR:

    • John F. Kennedy International Airport

    • Washington Dulles International Airport

    • Philadelphia International Airport

How to find the cheapest flights from Buffalo Niagara International Airport (BUF) to London Heathrow Airport (LHR)

  • Right now, C$430 is the lowest price we've found for a one-way Buffalo Niagara International Airport to London Heathrow Airport flight. The best price for a return plane ticket is C$821. Keep in mind that fares could change due to demand at the time of booking.

  • Don't leave things to the last minute. You're more likely to find cheap tickets from BUF to LHR if you book in advance. Airlines often offer some great early bird rates.

  • Finding cheap flights from Buffalo Niagara International Airport to London Heathrow Airport is easier if you're flexible with your travel dates. Use the 'Whole month' function to see the best prices across every month and snap up a great deal.

  • You won't have to check back in every day to find out if fares have gone down when you set up a Price Alert. We'll send you an update as soon as there's a change in price on cheap flights from BUF to LHR.

  • Pick your ideal arrival and departure times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to find the best deals on flights from Buffalo Niagara International Airport to London Heathrow Airport.

Handy information about Buffalo Niagara International Airport (BUF)

  • You'll find BUF at Genesee Street.

  • Of the flights that depart from Buffalo Niagara International Airport, 75.46% land on schedule at their destination.

  • Central Buffalo to Buffalo Niagara International Airport is approximately 18 kilometres. Depending on traffic, it'll take you about 20 minutes to get there if you're catching a cab, ride-sharing or driving.

  • You can expect a journey time of about 1 hour 15 minutes on public transport.

  • Taking an early flight from Buffalo Niagara International Airport to London Heathrow Airport? Avoid the stress of rushing to the terminal (and get some extra shut-eye) by choosing one of these hotels near BUF:

Arriving at London Heathrow Airport (LHR)

Getting from London Heathrow Airport (LHR) to central London

  • London Heathrow Airport is approximately 31 kilometres from the centre of London. The drive time takes about 55 minutes.

  • It takes roughly 1 hour when travelling by public transport.

When to fly to London Heathrow Airport (LHR)

  • The quietest month for a flight from Buffalo Niagara International Airport to London Heathrow Airport is February, while July is the most popular. Choose the best time to go to London based on whether you prefer a laid-back vibe or a more bustling atmosphere.

  • Before locking in your flight from Buffalo Niagara International Airport to London Heathrow Airport, consider the kind of weather you like. July is the warmest month in London, with the temperature ranging from 11ºC (52ºF) to 26ºC (79ºF).

  • January has average temperatures of between 0ºC (32ºF) and 9ºC (48ºF). Search for cheap tickets from BUF to LHR sometime then if you want to travel when it's cooler.

Explore more of United Kingdom

  • Birmingham is just one of the many places in United Kingdom waiting to be explored once you've seen London. Around 161 kilometres away to the north-west, check out popular attractions including Cadbury World, The Library of Birmingham and National Sea Life Centre.

  • If there's time to check out another corner of United Kingdom, consider Bristol, roughly 177 kilometres west of London. Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park are highlights.

Plan the rest of your trip from Buffalo to London

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.