$369 Cheap Flights from Dallas (DFW) to London (LHR)

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Find available prices by choosing your travel dates.

Cheap Flights from Dallas to London (DFW-LHR)

Prices were available within the past 7 days and start at $369 for one-way flights and $685 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Scandinavian Airlines
JetBlue Airways
JetBlue Airways
JetBlue Airways
American Airlines
British Airways
Delta
Air Canada
Lufthansa
Flights from Dallas (DFW) to London (LHR)
Origin airport
Dallas-Fort Worth Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, JetBlue Airways, KLM, Lufthansa, Royal Air Maroc, Scandinavian Airlines, Turkish Airlines, United, Virgin Atlantic
Roundtrip price
$685
Distance
4739 mi

Dallas to London Flights

The cheapest times to fly from Dallas to London

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Dallas to London are during the month of September. You can find some of the cheapest flights from Dallas to London with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Dallas to London

Sunday is one of the best days to book for cheap flights from Dallas to London: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Dallas to London

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Dallas to London in 2025. You can also book with separate airlines for your outbound and return journeys, from $369 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Dallas to London flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Dallas to London airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How long does it take to fly from Dallas-Fort Worth Intl. Airport (DFW) to Heathrow Airport (LHR)?
Book a fare with American Airlines and you’ll be airborne for about 9 hours and 10 minutes. This popular carrier operates a direct flight that departs at 9:35PM from Dallas-Fort Worth Intl. Airport (DFW) and lands at Heathrow Airport (LHR) at 12:45PM. Expedia has flight deals to get you soaring, so take a look at what’s available on this route today.
Is it cheaper to buy a plane ticket from Dallas-Fort Worth Intl. Airport (DFW) to London Heathrow last minute?
When it comes to booking your flights, being prepared pays dividends. While it’s possible to score a last-minute deal on a Dallas-Fort Worth Intl. Airport (DFW) to London Heathrow flight, tickets usually don’t get cheaper as the date of departure nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to book a domestic flight is between 28 – 35 days in advance. For international flights it’s between three and four months.
What airline has the least delays from Dallas Airport to Heathrow Airport (LHR)?
Book a seat with American Airlines from Dallas Airport to LHR and you’re more likely to arrive at the time listed on your plane ticket. This carrier takes out first place on this route, with an on-time arrival score of 70%. If your flight is delayed for whatever reason, the Expedia App is the best way to stay updated. Our useful app provides real-time trip updates, from flight delays to gate changes and which carousel to collect your baggage.
What airports do you fly into for London from Dallas?
With Heathrow Airport (LHR), London City Airport (LCY) and Gatwick Airport (LGW) to choose from, journeying from Dallas to London is simple. The city’s main hub, Heathrow Airport (LHR), is about 14 mi west of the center. As well as ticket prices, consider factors like the ease of getting from the airport and the distance to your hotel before making your decision. Get your London vacation off to a superb start by discovering Big Ben and Buckingham Palace.
What are the most popular departure times for flights from Dallas Airport to LHR?
Between 10:00 PM - 11:00 PM is the busiest time for American Airlines flights departing DFW Airport to Heathrow Airport. Our handy tip? Book a trip that departs earlier in the day. With air traffic yet to build up around airports, your chances of boarding a delay-free flight are higher.
Can I change the date of my flight from Dallas-Fort Worth Intl. Airport (DFW) to London Heathrow?
You can easily make changes to your DFW to London Heathrow flight through the Expedia Trips portal. But before you make any adjustments, read over the fare rules in your itinerary to learn what the airline will let you do and if fees apply for changes. Some airlines have a change fee per person, on top of any difference in ticket prices. However, if you booked in the last 24 hours, you may be able to cancel for free and organize new flights. You can also find your way to our Customer Service portal for more information and to chat with our Virtual Agent.

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