Cheap flights from Atlanta to London-Heathrow

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London-Heathrow flight facts

What you need to know

What are the cheapest airlines?

  • Norwegian Air
  • British Airways
  • Icelandair

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

What airlines fly indirectly?

  • Delta Airlines
  • American Airlines
  • Lufthansa

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

How long is the flight?

8 hours 30 minutes

This is the shortest flight time from Atlanta 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 Atlanta/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 Atlanta to London-Heathrow

Tips and advice from our flight experts

You've searched for flights from Atlanta to London-Heathrow. We've found 45 flights and compared them to give you the best offers. Norwegian Air is the average cheapest airline for this route, so keep an eye on them. The cheapest offer we've found is a one-way ticket for the route Atlanta to London-Heathrow on 18/05/2026 at 04:25 for £87.

We've scanned hundreds of airfares from dozens of airlines across the globe. In total, we've found 15 airlines that operate the 7,200 km flight from Atlanta to London-Heathrow.

To find the best offers, consider booking 2-3 months in advance or looking for last-minute deals. Norwegian Air is a popular and affordable choice for this route, with an average flight duration of 8 hours 30 minutes. After selecting an offer, fill out your information, proceed with payment, and consider booking a hotel with us or using our flight + hotel service to save time and money.