Cheap flights from Dallas 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
  • Iberia

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

What airlines fly indirectly?

  • Lufthansa
  • Air France
  • KLM

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

How long is the flight?

9 hours 30 minutes

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

Tips and advice from our flight experts

You've searched for flights from Dallas 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 their offers! The cheapest offer we've found is for a one-way ticket at £79 from Dallas to London-Heathrow on 15/02/2026 at 02:10.

We've scanned hundreds of airfares from dozens of airlines across the globe. In total, we've found 10 airlines that operate the 7,800 km flight from Dallas to London-Heathrow.

To find the best offers, consider booking 2-3 months in advance or looking for last-minute deals. British Airways is a popular choice for this route, and the average flight duration is about 9 hours 30 minutes. After selecting an offer, fill out your information and proceed with payment. Don't forget to check our flight + hotel service to book everything at once, saving time and money.