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Cheap flights from Dallas/Fort Worth Airport to London Heathrow Airport from C$ 519

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — LHR
3 Aug — 10 Aug1
1 adult

Cheapflights Tip: The best prices from Dallas/Fort Worth to London Heathrow are usually found in January or October, booked 79 days in advance, depart on a Tuesday or Friday and return on a Thursday

Cheap flight deals from Dallas/Fort Worth to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Dallas/Fort Worth (DFW) 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 29 July 2025.

Round-trip from

C$ 864

One-way from

C$ 519

Popular in

June

Cheapest in

January

Average price

C$ 1,589
United Airlines
  • United Airlines
  • 13/8-21/8
  • 3 total stops
  • 27h 55m total
  • Dallas to London
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JetBlue
  • JetBlue
  • 8/10
  • 1 total stop
  • 11h 35m total
  • Dallas to London
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Highest demand for flights based on searches. 22% potential increase in price (C$ 518 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease (C$ 84 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Dallas/Fort Worth to Heathrow

Cheapest flights from Dallas/Fort Worth to Heathrow
Explore the most affordable flight options available from Dallas/Fort Worth to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 July 2025.

Wed 13/810:35 a.m.DFW - LHR
2 stops14h 20mUnited Airlines
Thu 21/86:30 a.m.LHR - DFW
1 stop13h 35mUnited Airlines
Deal found 28/7C$ 864
Sun 30/119:15 p.m.DFW - LHR
Nonstop9h 00mBritish Airways
Fri 12/122:55 p.m.LHR - DFW
Nonstop10h 15mBritish Airways
Deal found 29/7C$ 868
Mon 4/83:15 p.m.DFW - LHR
Nonstop9h 10mFinnair
Tue 19/84:25 p.m.LHR - DFW
Nonstop10h 05mFinnair
Deal found 28/7C$ 874
Sun 30/116:00 p.m.DFW - LHR
1 stop12h 15mDelta
Fri 12/1210:45 a.m.LHR - DFW
1 stop13h 55mDelta
Deal found 29/7C$ 877
Tue 2/1212:25 p.m.DFW - LHR
2 stops24h 50mSWISS
Thu 11/125:10 p.m.LHR - DFW
2 stops35h 35mSWISS
Deal found 29/7C$ 894
Mon 11/812:20 p.m.DFW - LHR
2 stops15h 35mLufthansa
Tue 26/86:30 a.m.LHR - DFW
1 stop13h 35mLufthansa
Deal found 26/7C$ 897
Fri 15/81:23 p.m.DFW - LHR
1 stop11h 22mMultiple Airlines
Fri 22/86:15 a.m.LHR - DFW
1 stop13h 20mMultiple Airlines
Deal found 29/7C$ 937

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dallas/Fort Worth 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 629,999 searches. Data last updated 29 July 2025.
Use the filters below to find and compare flights from Dallas/Fort Worth Airport to London Heathrow Airport that are best for you.

Fly from

Dallas/Fort Worth

Fly to

Heathrow

Route

Depart

Return

Price

DallasLondon

DFW - LHR

DFWLHR

Dallas/Fort Worth

Wed 13/8

10:35 a.m.-6:55 a.m.

2 stops14h 20m

London Heathrow

Thu 21/8

6:30 a.m.-2:05 p.m.

1 stop13h 35m

C$ 864

DallasLondon

DFW - LHR

DFWLHR

Dallas/Fort Worth

Sun 30/11

9:15 p.m.-12:15 p.m.

Nonstop9h 00m

London Heathrow

Wed 10/12

2:55 p.m.-7:10 p.m.

Nonstop10h 15m

C$ 868

DallasLondon

DFW - LHR

DFWLHR

Dallas/Fort Worth

Sun 30/11

6:00 p.m.-12:15 p.m.

1 stop12h 15m

London Heathrow

Wed 10/12

10:45 a.m.-6:40 p.m.

1 stop13h 55m

C$ 877

DallasLondon

DFW - LHR

DFWLHR

Dallas/Fort Worth

Tue 2/12

12:25 p.m.-9:40 p.m.

2 stops27h 15m

London Heathrow

Fri 12/12

6:00 a.m.-10:45 p.m.

2 stops22h 45m

C$ 894

DallasLondon

DFW - LHR

DFWLHR

Dallas/Fort Worth

Mon 11/8

12:20 p.m.-9:55 a.m.

2 stops15h 35m

London Heathrow

Tue 26/8

6:30 a.m.-2:05 p.m.

1 stop13h 35m

C$ 897

DallasLondon

DFW - LHR

DFWLHR

Dallas/Fort Worth

Fri 19/9

10:59 p.m.-2:25 p.m.

Nonstop9h 26m

London Heathrow

Mon 29/9

4:10 p.m.-3:05 p.m.

1 stop28h 55m

C$ 901

DallasLondon

DFW - LHR

DFWLHR

Dallas/Fort Worth

Fri 15/8

1:23 p.m.-6:45 a.m.

1 stop11h 22m

London Heathrow

Fri 22/8

6:15 a.m.-1:35 p.m.

1 stop13h 20m

C$ 937

DallasLondon

DFW - LHR

DFWLHR

Dallas/Fort Worth

Wed 8/10

12:55 p.m.-6:30 a.m.

1 stop11h 35m

C$ 519

DallasLondon

DFW - LHR

DFWLHR

Dallas/Fort Worth

Mon 25/8

9:25 a.m.-10:00 a.m.

1 stop18h 35m

C$ 541

DallasLondon

DFW - LHR

DFWLHR

Dallas/Fort Worth

Sun 25/1

9:15 p.m.-12:15 p.m.

Nonstop9h 00m

C$ 568

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/7

Showing 1-10 of 15 results
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Best time to book a flight from Dallas/Fort Worth to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Dallas/Fort Worth 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/Fort Worth Airport to London Heathrow Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Dallas/Fort Worth to Heathrow. Price data was last updated on 25 July 2025.

Booking 79 days in advance of your planned departure date is, on average, the best time to get cheap flights from Dallas/Fort Worth Airport 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/Fort Worth Airport to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Dallas/Fort Worth Airport to London Heathrow Airport (average of C$ 560). Flying from Dallas/Fort Worth Airport to London Heathrow Airport in July is currently the most expensive (average of C$ 857). 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/Fort Worth 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 29 July 2025.

One of the essential ways to save on airfare from Dallas/Fort Worth Airport to London Heathrow Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 11% on airfare.

Weekly flight availability from Dallas/Fort Worth Airport to London Heathrow Airport

Explore weekly flight availability from Dallas/Fort Worth 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 29 July 2025.

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

How much does it cost to fly round-trip from Dallas/Fort Worth Airport to London Heathrow Airport?

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 29 July 2025.
Get a feel of what it's like to fly with Delta,Finnair, andSWISS from Dallas/Fort Worth Airport to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,977 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,977 reviews
Delta
8.0
Very good
7,977 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very good
7,977 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
SWISS
7.5
Good
1,683 reviews
Delta
8.0
Very good
7,977 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,899 reviews
Delta
8.0
Very good
7,977 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Turkish Airlines
7.3
Good
3,925 reviews
Delta
8.0
Very good
7,977 reviews
Check prices

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Dallas/Fort Worth 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/Fort Worth Airport to London Heathrow Airport round-trip?

    According to our current data, United Airlines (C$ 864), British Airways (C$ 868), and Delta (C$ 877) offers the cheapest pricing from Dallas/Fort Worth Airport to London Heathrow Airport. United Airlines is 33% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Dallas/Fort Worth Airport to London Heathrow Airport one-way?

    C$ 519 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on United Airlines and British Airways, with prices starting from C$ 541 and C$ 568, respectively.

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

    The top 3 most reliable airlines when flying from Dallas/Fort Worth Airport to London Heathrow Airport are Royal Jordanian (83%), Malaysia Airlines (78%) and American Airlines (73%).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dallas/Fort Worth 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/Fort Worth Airport to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Dallas/Fort Worth Airport to London Heathrow Airport (average of C$ 560). Flying from Dallas/Fort Worth Airport to London Heathrow Airport in July is currently the most expensive (average of C$ 857). 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Brentford
Sutton
Hounslow
Slough
Marlow
Leamington Spa
Milton Keynes
Romford
Watford
Bromley
Luton
Bedford
Southall

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Can Cheapflights notify me if prices for flights from Dallas/Fort Worth to Heathrow become cheaper?

Yes, Cheapflights offers price alerts on Dallas/Fort Worth to Heathrow flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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