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$309+ Cheap flights from Dallas to Heathrow (LHR)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — LHR
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Dallas to London Heathrow are usually found in January or October, booked 17 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Dallas to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Dallas (A78) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Round-trip from

$613
(American Airlines)

One-way from

$309
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$856
From Dallas to London Heathrow
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One-way flight from Dallas to London Heathrow
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Highest demand for flights based on searches. 22% potential increase in price ($271 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Dallas to Heathrow

Cheapest flights from Dallas to Heathrow
Explore the most affordable flight options available from Dallas to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This American Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/242:40 pmDFW - LHR
1 stop12h 25mAmerican Airlines
Tue 9/98:50 amLHR - DFW
1 stop13h 15mAmerican Airlines
Deal found 8/14$613
This Finnair deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/124:55 pmDFW - LHR
1 stop21h 45mFinnair
Thu 11/204:15 pmLHR - DFW
1 stop28h 55mFinnair
Deal found 8/14$614
This Iberia deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/910:59 pmDFW - LHR
Nonstop9h 26mIberia
Wed 9/179:15 amLHR - DFW
1 stop16h 55mIberia
Deal found 8/14$615
This Finnair deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/84:50 pmDFW - LHR
1 stop18h 15mFinnair
Mon 10/134:10 pmLHR - DFW
1 stop28h 55mFinnair
Deal found 8/12$616
This Cheapflightsfares deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/147:35 pmDFW - LHR
Nonstop9h 15mBritish Airways
Tue 9/304:25 pmLHR - DFW
Nonstop10h 14mBritish Airways
Deal found 8/12$617
This oojo deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/105:30 pmDFW - LHR
1 stop13h 45mBritish Airways
Tue 11/257:30 amLHR - DFW
1 stop15h 30mBritish Airways
Deal found 8/14$619
This Iberia deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/202:39 pmDFW - LHR
1 stop12h 46mIberia
Wed 8/279:15 amLHR - DFW
1 stop16h 55mIberia
Deal found 8/13$620
This oojo deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/277:05 pmDFW - LHR
1 stop13h 10mBritish Airways
Tue 9/26:10 amLHR - DFW
1 stop20h 00mBritish Airways
Deal found 8/14$621
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1912:20 pmDFW - LHR
1 stop12h 50mUnited Airlines
Thu 11/271:25 pmLHR - DFW
2 stops39h 02mUnited Airlines
Deal found 8/11$622
This Cheapflightsfares deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1010:59 pmDFW - LHR
Nonstop9h 26mBritish Airways
Wed 9/173:10 pmLHR - DFW
Nonstop10h 05mBritish Airways
Deal found 8/14$623
This United Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/109:25 amDFW - LHR
1 stop15h 05mUnited Airlines
Tue 9/236:30 amLHR - DFW
1 stop13h 35mUnited Airlines
Deal found 8/12$624
This Ticket deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/246:28 pmDAL - LHR
1 stop13h 02mVirgin Atlantic
Tue 9/91:05 pmLHR - DAL
1 stop14h 03mVirgin Atlantic
Deal found 8/13$676

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dallas to Heathrow 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, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Dallas to London Heathrow Airport that are best for you.

Fly from

Dallas

Fly to

Heathrow

Route

Depart

Return

Price

DallasLondon

DFW - LHR

DFWLHR

Dallas/Fort Worth

Wed 10/8

4:50 pm-10:10 pm

1 stop23h 20m

London Heathrow

Mon 10/13

4:10 pm-3:05 pm

1 stop28h 55m

$615

DallasLondon

DFW - LHR

DFWLHR

Dallas/Fort Worth

Wed 11/19

12:20 pm-7:10 am

1 stop12h 50m

London Heathrow

Thu 11/27

1:25 pm-10:27 pm

2 stops39h 02m

$622

DallasLondon

DFW - LHR

DFWLHR

Dallas/Fort Worth

Tue 10/14

9:25 am-6:30 am

1 stop15h 05m

London Heathrow

Tue 11/11

1:25 pm-1:56 pm

2 stops30h 31m

$623

DallasLondon

DFW - LHR

DFWLHR

Dallas/Fort Worth

Wed 10/1

9:25 am-6:30 am

1 stop15h 05m

London Heathrow

Wed 10/15

2:05 pm-1:47 pm

2 stops29h 42m

$623

DallasLondon

DFW - LHR

DFWLHR

Dallas/Fort Worth

Tue 9/23

9:25 am-6:30 am

1 stop15h 05m

London Heathrow

Tue 9/30

6:30 am-2:05 pm

1 stop13h 35m

$624

DallasLondon

DFW - LHR

DFWLHR

Dallas/Fort Worth

Mon 10/13

9:25 am-9:35 am

1 stop18h 10m

London Heathrow

Wed 10/22

6:30 am-2:05 pm

1 stop13h 35m

$624

DallasLondon

DFW - LHR

DFWLHR

Dallas/Fort Worth

Wed 10/8

9:25 am-6:30 am

1 stop15h 05m

London Heathrow

Thu 10/16

6:30 am-2:05 pm

1 stop13h 35m

$624

DallasLondon

DFW - LHR

DFWLHR

Dallas/Fort Worth

Sun 9/28

9:25 am-6:30 am

1 stop15h 05m

London Heathrow

Tue 10/7

6:30 am-2:05 pm

1 stop13h 35m

$624

DallasLondon

DFW - LHR

DFWLHR

Dallas/Fort Worth

Mon 10/6

9:25 am-9:35 am

1 stop18h 10m

London Heathrow

Tue 10/14

6:30 am-2:05 pm

1 stop13h 35m

$624

DallasLondon

DFW - LHR

DFWLHR

Dallas/Fort Worth

Wed 10/1

9:25 am-6:30 am

1 stop15h 05m

London Heathrow

Thu 10/9

6:30 am-2:05 pm

1 stop13h 35m

$624

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 36 results
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The best insider tips for Dallas to London Heathrow Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Dallas to London Heathrow Airport trip
Airports
DFW

DFW's Terminal D offers luxury lounges like the Capital One Lounge and Centurion Lounge, ideal for relaxing before your long flight to London.

Read more about DFWby Chris Dong
LHR

For a quick trip to central London, take the Heathrow Express to Paddington Station, the fastest option from LHR.

Read more about LHRby Ramsey Qubein
Our travel experts
Chris Dong

Chris Dong

Expert on DFW

Chris Dong

Chris Dong

Chris is a consumer travel reporter covering aviation, trending travel news, hotels, and loyalty programs—all for leading global publications like Travel + Leisure, The Washington Post, AFAR, and more. In addition to writing, Chris is a video host for Travel + Leisure, giving consumers an inside look at the latest in air travel.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on LHR

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Best time to book a flight from Dallas to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Dallas with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Dallas to London Heathrow Airport

How far ahead should I book a flight from Dallas to London Heathrow Airport?

Use this chart to determine the optimal time to book a round-trip flight from Dallas to Heathrow. Price data was last updated on August 8, 2025.

Booking 17 days in advance of your planned departure date is, on average, the best time to get cheap flights from Dallas to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Dallas to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from Dallas to London Heathrow Airport (average of $661). Flying from Dallas to London Heathrow Airport in June is currently the most expensive (average of $1,097). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DFW to LHR?

Find hourly flight availability from Dallas to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

It’s optimal to fly from Dallas to London Heathrow Airport at noon. By choosing this option you can save up to 17% on the cost of your flight, compared to a flight in the evening.

What is the cheapest day to fly from Dallas to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Dallas to Heathrow. Price data was last updated on December 8, 2024.

Travelers seeking maximum savings on their Dallas to London Heathrow Airport flight should consider departing on Wednesday mornings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Dallas to London Heathrow Airport

Explore weekly flight availability from Dallas to Heathrow. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 14, 2025.

The most flights from A78 to LHR are scheduled on a Wednesday (29 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (26 on average).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated August 14, 2025.
Read through reviews of airlines operating flights from Dallas to London Heathrow Airport, such as Finnair, Scandinavian Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,321 reviews

Comfort

7.5

Entertainment

6.9

Crew

8.1

Food

6.7

Boarding

7.6

Overall

7.6

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
Finnair
7.6
Good
1,321 reviews
Finnair
7.6
Good
1,321 reviews

Comfort

7.5

Entertainment

6.9

Crew

8.1

Food

6.7

Boarding

7.6

Overall

7.6

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
Scandinavian Airlines
7.4
Good
1,468 reviews
Finnair
7.6
Good
1,321 reviews

Comfort

7.5

Entertainment

6.9

Crew

8.1

Food

6.7

Boarding

7.6

Overall

7.6

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
American Airlines
7.2
Good
10,000 reviews
Finnair
7.6
Good
1,321 reviews

Comfort

7.5

Entertainment

6.9

Crew

8.1

Food

6.7

Boarding

7.6

Overall

7.6

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
Iberia
7.0
Good
2,878 reviews
Finnair
7.6
Good
1,321 reviews

Comfort

7.5

Entertainment

6.9

Crew

8.1

Food

6.7

Boarding

7.6

Overall

7.6

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
British Airways
6.7
Okay
7,266 reviews
Finnair
7.6
Good
1,321 reviews

Comfort

7.5

Entertainment

6.9

Crew

8.1

Food

6.7

Boarding

7.6

Overall

7.6

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Related info for your journey

Find useful and relevant information for your journey from Dallas to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Dallas to London Heathrow Airport round-trip?

    Flying on JetBlue is currently your cheapest option to London Heathrow Airport, with prices starting at $116. Additional round-trip tickets that might be worth considering are offered by Virgin Atlantic and Scandinavian Airlines, with the lowest prices starting at $515 and $544, respectively. JetBlue is currently priced 87% below the average price you’ll pay for this route.

  • What are the most reliable airlines from Dallas to London Heathrow Airport?

    Before booking your flight to London Heathrow Airport from Dallas, check out the most reliable airlines to get you to your destination on time: Royal Jordanian (82%), Malaysia Airlines (77%), American Airlines( 73%).

  • What are the cheapest flights from Dallas to London Heathrow Airport?

    Looking for the cheapest flight from Dallas to London Heathrow Airport? While on average our users pay $2,847, our data indicates the cheapest price to be $239. The most popular route (Dallas/Fort Worth - London Heathrow), is priced around $599.

  • Can I find deals for flights from Dallas to Heathrow that include hotel bookings?

    Yes. In addition to deals on Dallas to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dallas to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dallas to Heathrow.

  • Can I find deals for business class flights from Dallas to Heathrow?

    Yes. Cheapflights offers flight deals from Dallas to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Dallas to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Dallas to London Heathrow Airport (average of $661). Flying from Dallas to London Heathrow Airport in June is currently the most expensive (average of $1,097). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Harrow
Canterbury
Dartford
Dover
Stratford-upon-Avon
Orpington
Watford
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Chelmsford
Southend-on-Sea
Folkestone
Chichester
Swindon

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Dallas to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Dallas to Heathrow

Discover the top 10 airlines that operate flights from Dallas to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$116Average$160FlexibilityNo cancel feeOn-time62%
Virgin AtlanticCheapest$515Average$823FlexibilityNo cancel feeOn-time72%
Scandinavian AirlinesCheapest$544Average$743FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$563Average$866FlexibilityNo cancel feeOn-time77%
DeltaCheapest$568Average$904FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$576Average$907FlexibilityNo cancel feeOn-time70%
FinnairCheapest$633Average$890FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$637Average$1,015FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$658Average$864FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$668Average$997FlexibilityNo cancel feeOn-time71%

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