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Cheap flights from London Heathrow Airport to Dallas from $357

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Dallas departing on 11/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from London Heathrow Airport to Dallas

Cheap round-trip flights

Multiple Airlines Logo
12:25 pm - 12:57 amLHR-DFW
18h 32m1 stop
Multiple Airlines Logo
7:02 am - 6:25 amDFW-LHR
17h 23m1 stop
$667Multiple Airlines
Find Deal
Fri, Oct 17 - Tue, Oct 21
Multiple Airlines Logo
7:05 am - 11:22 pmLHR-DFW
22h 17m3 stops
Multiple Airlines Logo
7:20 am - 4:00 pmDFW-LHR
26h 40m2 stops
$669Multiple Airlines
Find Deal
Wed, Nov 5 - Wed, Nov 19
Multiple Airlines Logo
9:40 am - 12:57 amLHR-DFW
21h 17m2 stops
Multiple Airlines Logo
7:02 am - 10:30 amDFW-LHR
21h 28m2 stops
$673Multiple Airlines
Find Deal
Fri, Oct 17 - Tue, Oct 21
Multiple Airlines Logo
12:35 pm - 4:00 pmLHR-DFW
33h 25m2 stops
Multiple Airlines Logo
7:05 am - 9:20 amDFW-LHR
20h 15m1 stop
$676Multiple Airlines
Find Deal
Sat, Oct 18 - Sat, Nov 8
Multiple Airlines Logo
1:45 pm - 3:00 pmLHR-DFW
31h 15m3 stops
Multiple Airlines Logo
6:30 am - 6:30 amDFW-LHR
18h 00m3 stops
$677Multiple Airlines
Find Deal
Wed, Oct 15 - Wed, Oct 22
JetBlue Logo
9:20 am - 10:57 amLHR-DFW
31h 37m1 stop
JetBlue Logo
11:39 am - 6:55 amDFW-LHR
13h 16m1 stop
$701JetBlue
Find Deal
Wed, Nov 19 - Wed, Nov 26
JetBlue Logo
9:20 am - 10:38 amLHR-DFW
31h 18m1 stop
JetBlue Logo
11:25 am - 6:55 amDFW-LHR
13h 30m1 stop
$717JetBlue
Find Deal
Wed, Jan 28 - Mon, Feb 2
Icelandair Logo
9:20 am - 10:35 amLHR-DFW
31h 15m1 stop
Icelandair Logo
1:00 pm - 9:40 pmDFW-LHR
26h 40m2 stops
$730Icelandair
Find Deal
Wed, Nov 12 - Wed, Nov 19
Icelandair Logo
9:20 am - 10:11 amLHR-DFW
30h 51m1 stop
Icelandair Logo
11:00 am - 6:55 amDFW-LHR
14h 55m1 stop
$735Icelandair
Find Deal
Wed, Feb 25 - Wed, Mar 18
Icelandair Logo
9:20 am - 10:11 amLHR-DFW
30h 51m1 stop
Icelandair Logo
11:00 am - 6:55 amDFW-LHR
14h 55m1 stop
$736Icelandair
Find Deal
Wed, Feb 25 - Wed, Mar 18

United Airlines flights from London Heathrow Airport to Dallas/Fort Worth Airport

Our best United Airlines deals on London Heathrow Airport to Dallas/Fort Worth Airport flight tickets
United Airlines
Oct 2
LHR6:30 amLondon Heathrow
13h 35m
1 stop
DFW2:05 pmDallas/Fort Worth
Nov 23
DFW12:20 pmDallas/Fort Worth
12h 50m
1 stop
LHR7:10 amLondon Heathrow
$830
Find similar
United Airlines
Oct 2
LHR6:30 amLondon Heathrow
13h 35m
1 stop
DFW2:05 pmDallas/Fort Worth
Oct 6
DFW5:46 pmDallas/Fort Worth
11h 49m
1 stop
LHR11:35 amLondon Heathrow
$831
Find similar

British Airways flights from London Heathrow Airport to Dallas/Fort Worth Airport

Our best British Airways deals on London Heathrow Airport to Dallas/Fort Worth Airport flight tickets
British Airways
Oct 1
LHR7:40 amLondon Heathrow
14h 25m
1 stop
DFW4:05 pmDallas/Fort Worth
Oct 16
DFW7:50 pmDallas/Fort Worth
9h 00m
LHR10:50 amLondon Heathrow
$795
Find similar
British Airways
Oct 1
LHR7:40 amLondon Heathrow
14h 25m
1 stop
DFW4:05 pmDallas/Fort Worth
Oct 16
DFW7:50 pmDallas/Fort Worth
9h 00m
LHR10:50 amLondon Heathrow
$799
Find similar
British Airways
Oct 1
LHR7:40 amLondon Heathrow
14h 25m
1 stop
DFW4:05 pmDallas/Fort Worth
Oct 15
DFW7:10 pmDallas/Fort Worth
12h 15m
1 stop
LHR1:25 pmLondon Heathrow
$803
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London Heathrow Airport to Dallas/Fort Worth Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 18, 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Dallas/Fort Worth Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Fri 10/17

12:25 pm-12:57 am

1 stop18h 32m

Dallas/Fort Worth

Tue 10/21

7:02 am-6:25 am

1 stop17h 23m

$667

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Wed 11/5

7:05 am-11:22 pm

3 stops22h 17m

Dallas/Fort Worth

Wed 11/19

7:20 am-4:00 pm

2 stops26h 40m

$669

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Fri 10/17

9:40 am-12:57 am

2 stops21h 17m

Dallas/Fort Worth

Tue 10/21

7:02 am-10:30 am

2 stops21h 28m

$673

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Sat 10/18

12:35 pm-4:00 pm

2 stops33h 25m

Dallas/Fort Worth

Sat 11/8

7:05 am-9:20 am

1 stop20h 15m

$676

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Wed 10/15

1:45 pm-3:00 pm

3 stops31h 15m

Dallas/Fort Worth

Wed 10/22

6:30 am-6:30 am

3 stops18h 00m

$677

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Wed 11/19

9:20 am-10:57 am

1 stop31h 37m

Dallas/Fort Worth

Wed 11/26

11:39 am-6:55 am

1 stop13h 16m

$701

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Wed 1/28

9:20 am-10:38 am

1 stop31h 18m

Dallas/Fort Worth

Mon 2/2

11:25 am-6:55 am

1 stop13h 30m

$717

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Wed 11/12

9:20 am-10:35 am

1 stop31h 15m

Dallas/Fort Worth

Wed 11/19

1:00 pm-9:40 pm

2 stops26h 40m

$730

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Wed 2/25

9:20 am-10:11 am

1 stop30h 51m

Dallas/Fort Worth

Wed 3/18

11:00 am-6:55 am

1 stop14h 55m

$735

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Wed 2/25

9:20 am-10:11 am

1 stop30h 51m

Dallas/Fort Worth

Wed 3/18

11:00 am-6:55 am

1 stop14h 55m

$736

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Dallas from

How to get the cheapest flight ticket from London Heathrow Airport to Dallas/Fort Worth Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between London Heathrow Airport and Dallas/Fort Worth Airport?

What is the cheapest month to fly to Dallas/Fort Worth Airport?

The cheapest month to fly to Dallas/Fort Worth Airport from London Heathrow Airport is in January. Flight prices, which tend to average around $843, are often lower during this time because this is during the off-season. If you’re not able to fly to Dallas/Fort Worth Airport in January, then February is your next best option. Flight prices from London Heathrow Airport to Dallas/Fort Worth Airport during February average around $858.

What is the cheapest day to depart on your flight to Dallas/Fort Worth Airport?

On average, the least expensive day to fly to Dallas/Fort Worth Airport from London Heathrow Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $957. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from London Heathrow Airport to Dallas/Fort Worth Airport for around $1,091.

What is the cheapest time of day to depart on your flight to Dallas/Fort Worth Airport?

Flying to Dallas/Fort Worth Airport from London Heathrow Airport at noon is the least expensive time of day to depart. momondo users have found prices as low as $980 when looking at flights departing at noon. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,093 on average. Flights to Dallas/Fort Worth Airport from London Heathrow Airport in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest London Heathrow to Dallas/Fort Worth flight route?

Fly from London Heathrow to Dallas/Fort Worth for the best London Heathrow - Dallas/Fort Worth flight prices

How far in advance should I book a flight to Dallas/Fort Worth Airport?

You are more likely to see cheaper flights to Dallas/Fort Worth Airport from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Dallas/Fort Worth Airport for around $1,008 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Dallas/Fort Worth Airport from London Heathrow Airport for as low as $914 on momondo.

What cabin class options are available on London Heathrow to Dallas/Fort Worth flights?

There are 4 cabin classes available to choose from on London Heathrow to Dallas/Fort Worth flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London Heathrow Airport to Dallas/Fort Worth Airport flights?

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Dallas/Fort Worth Airport.

How have London Heathrow Airport to Dallas/Fort Worth Airport flight prices changed over time?

As of September 2025, prices for London Heathrow Airport to Dallas/Fort Worth Airport flights are approximately 4% more expensive when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Dallas/Fort Worth Airport

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Dallas/Fort Worth Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap London Heathrow Airport to Dallas/Fort Worth Airport (LHR to DFW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Dallas/Fort Worth Airport

Best Price Found

$902

Fastest flight time

10h 05m

Direct flights

Every day
The best one-way flight to Dallas/Fort Worth Airport from London Heathrow Airport in the past 72 hours is $902. The best round-trip flight deal from London Heathrow Airport to Dallas/Fort Worth Airport found on momondo in the last 72 hours is $844.
The fastest flight from London Heathrow Airport to Dallas/Fort Worth Airport takes 10h 05m
Direct flights go from London Heathrow Airport to Dallas/Fort Worth Airport every day.
Search flight deals

  • How far is London Heathrow to Dallas/Fort Worth by plane?

    The straight-line distance from London Heathrow to Dallas/Fort Worth is 4736.3 mi. Typically, this will take 16h 29m by plane in normal conditions.

  • When did momondo last update prices for flights from London Heathrow Airport to Dallas/Fort Worth Airport?

    Prices for flights from London Heathrow Airport to Dallas/Fort Worth Airport were last updated today.

  • How many operators does momondo search for flights from London Heathrow Airport to Dallas/Fort Worth Airport?

  • How old do you have to be to fly from London Heathrow Airport to Dallas/Fort Worth Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Dallas/Fort Worth Airport.

  • What documentation or ID do you need to fly to Dallas/Fort Worth Airport?

    The required travel and health documents for your Dallas/Fort Worth Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Dallas/Fort Worth Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from London Heathrow Airport to Dallas/Fort Worth Airport?

  • What is the most popular airline from London Heathrow Airport to Dallas/Fort Worth Airport?

Best airlines flying from London Heathrow Airport to Dallas/Fort Worth Airport

Compare and see reviews for airlines that fly from London Heathrow Airport to Dallas/Fort Worth Airport with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $822Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
British AirwaysPriceFrom $850Free CancellationRating
6.7
7,373 reviews
Search British Airways flights
FinnairPriceFrom $887Free CancellationRating
7.6
1,324 reviews
Search Finnair flights
IberiaPriceFrom $904Free CancellationRating
7.0
2,926 reviews
Search Iberia flights

  • Finnair Flights From London Heathrow Airport to Dallas/Fort Worth Airport

    Finnair flies from London Heathrow Airport to Dallas/Fort Worth Airport around 35 times per week, with 1,324 momondo users rating the airline 7.6/10. The cheapest Finnair deal from London Heathrow Airport to Dallas/Fort Worth Airport in the last 72 hours was $887 (round-trip), much lower than the average airfare cost of $1,114 for Finnair flights on this route.

  • American Airlines Flights From London Heathrow Airport to Dallas/Fort Worth Airport

    Across 10,000 American Airlines reviews on momondo, the average score is 7.2/10. American Airlines flies from London Heathrow Airport to Dallas/Fort Worth Airport about 35 times each week, with ticket deals ranging from $822 to $1,151. Price data is based on momondo searches in the last 72 hours.

Traveling to a place near Dallas?

Book flights to Dallas if you plan to visit one of these locations
Fort Worth
Arlington
Frisco
Irving
Grapevine
Plano
Denton
Thackerville
Grand Prairie
Garland
McKinney
Durant
Rockwall
Richardson
Lewisville
Ardmore
Addison
Allen
Waxahachie
Granbury

Why use momondo?

Why should I use momondo to find a flight deal from London to Dallas?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Dallas for you.

Can I find flights from London to Dallas with flexible booking policies on momondo?

Yes. All flights to Dallas from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from London to Dallas?

momondo provides multiple filters to help you find the best flight to Dallas from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from London to Dallas right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Dallas, momondo offers a useful price alert feature which will track prices for flights to Dallas from London and alert you when they change.

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