Cheap flights from Buffalo to London-Heathrow

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London-Heathrow flight facts

What you need to know

What are the cheapest airlines?

  • British Airways
  • American Airlines
  • JetBlue

These airlines usually offer the cheapest flights from Buffalo to London-Heathrow.

What airlines fly indirectly?

  • Delta Airlines
  • United Airlines
  • Air Canada

These airlines fly from Buffalo to London-Heathrow, but you’ll have at least one layover.

How long is the flight?

7 hours 30 minutes

This is the shortest flight time from Buffalo to London-Heathrow.

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Today alone, Netflights has searched over five flights. 05 / Feb / 2026 is currently the lowest priced day of the year to fly the Buffalo/London-Heathrow route. There are around 35 flights on any given week from the UK to London-Heathrow and the cheapest month to fly right now is February. Not suitable? Try running another search or viewing all cheap flight deals.

How to get cheap flights from Buffalo to London-Heathrow

Tips and advice from our flight experts

You've searched for flights from Buffalo to London-Heathrow. We've found 25 flights and compared them to give you the best offer. British Airways is, on average, the cheapest for this route. Look out for them! The cheapest offer we've found is a one-way ticket for £53 from Buffalo to London-Heathrow on 29/01/2026 at 04:20.

We've scanned hundreds of airfares from dozens of airlines across the globe. We've found 10 airlines that operate the 5,600 km flight from Buffalo to London-Heathrow.

To find the best offers, consider booking 2-3 months in advance or look for last-minute deals. Try JetBlue for budget-friendly options. The average flight duration is about 7 hours 30 minutes. After selecting an offer, fill out your information and payment. Consider booking a hotel with us or use our flight + hotel service to save time and money.