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Cheap flights from London Heathrow Airport to Dallas from £463

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 24/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DFW
20 Jul — 27 Jul1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Dallas are usually found in January or February, booked 85 days in advance, depart on a Wednesday or Monday and return on a Wednesday

Cheap flight deals from Heathrow to Dallas

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Dallas (A78). 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 15 July 2025.

Round-trip from

£524

One-way from

£463

Popular in

July

Cheapest in

January

Average price

£990
Icelandair
  • Icelandair
  • 18/9-30/9
  • 2 total stops
  • 45h 08m total
  • London to Dallas
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24/8
  • 24/8
  • 1 total stop
  • 24h 01m total
  • London to Dallas
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£108 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from Heathrow to Dallas

Cheapest flights from Heathrow to Dallas
Explore the most affordable flight options available from Heathrow to Dallas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.

Thu 18/908:25LHR - DFW
1 stop33h 33mIcelandair
Tue 30/912:55DFW - LHR
1 stop11h 35mIcelandair
Deal found 14/7£524
Mon 20/1015:50LHR - DFW
2 stops26h 58mMultiple Airlines
Sat 1/1105:00DFW - LHR
2 stops25h 20mMultiple Airlines
Deal found 13/7£524
Tue 2/908:25LHR - DFW
1 stop33h 33mJetBlue
Tue 9/912:55DFW - LHR
1 stop11h 35mJetBlue
Deal found 14/7£534
Wed 27/806:40LHR - DAL
2 stops23h 09mScandinavian Airlines
Wed 3/911:54DAL - LHR
2 stops23h 46mScandinavian Airlines
Deal found 12/7£608
Mon 25/810:45LHR - DAL
2 stops19h 04mDelta
Tue 9/908:30DAL - LHR
2 stops18h 55mDelta
Deal found 13/7£642
Mon 15/919:15LHR - DAL
2 stops28h 24mVirgin Atlantic
Thu 25/911:59DAL - LHR
1 stop12h 46mVirgin Atlantic
Deal found 13/7£668
Mon 25/813:05LHR - DAL
1 stop14h 03mKLM
Tue 9/918:28DAL - LHR
1 stop13h 02mKLM
Deal found 14/7£680
Mon 25/813:05LHR - DAL
1 stop14h 03mMultiple Airlines
Tue 9/911:54DAL - LHR
1 stop12h 51mMultiple Airlines
Deal found 13/7£720

Cheapflights Fare Finder

Customise your flight search to find flights from Heathrow to Dallas 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 858,174 searches. Data last updated 15 July 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Dallas that are best for you.

Fly from

Heathrow

Fly to

Dallas

Route

Depart

Return

Price

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Thu 18/9

08:25-11:58

1 stop33h 33m

Dallas/Fort Worth

Tue 30/9

12:55-06:30

1 stop11h 35m

£524

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Mon 20/10

15:50-12:48

2 stops26h 58m

Dallas/Fort Worth

Sat 1/11

05:00-11:20

2 stops25h 20m

£524

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Tue 2/9

08:25-11:58

1 stop33h 33m

Dallas/Fort Worth

Tue 9/9

12:55-06:30

1 stop11h 35m

£534

LondonDallas

LHR - DAL

LHRDAL

London Heathrow

Wed 27/8

06:40-23:49

2 stops23h 09m

Dallas Love Field

Wed 3/9

11:54-17:40

2 stops23h 46m

£608

LondonDallas

LHR - DAL

LHRDAL

London Heathrow

Mon 25/8

10:45-23:49

2 stops19h 04m

Dallas Love Field

Tue 9/9

08:30-09:25

2 stops18h 55m

£642

LondonDallas

LHR - DAL

LHRDAL

London Heathrow

Mon 15/9

19:15-17:39

2 stops28h 24m

Dallas Love Field

Thu 25/9

11:59-06:45

1 stop12h 46m

£668

LondonDallas

LHR - DAL

LHRDAL

London Heathrow

Mon 25/8

13:05-21:08

1 stop14h 03m

Dallas Love Field

Tue 9/9

18:28-13:30

1 stop13h 02m

£680

LondonDallas

LHR - DAL

LHRDAL

London Heathrow

Mon 25/8

13:05-21:08

1 stop14h 03m

Dallas Love Field

Tue 9/9

11:54-06:45

1 stop12h 51m

£720

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Sun 24/8

16:35-10:36

1 stop24h 01m

£463

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Tue 2/9

08:25-11:58

1 stop33h 33m

£547

Flights are sorted by cheapest return flights first.

Deals found on 13/7

Showing 1-10 of 16 results
1
2

Best time to book a flight from Heathrow to Dallas

Have a flexible travel schedule? Discover the best time to fly to Dallas from Heathrow with our price prediction graph.
Estimated return 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 London Heathrow Airport to Dallas

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Dallas. Price data was last updated on 11 July 2025.

The best time to book flights from London Heathrow Airport to Dallas is 85 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Dallas (average of £737). Flying from London Heathrow Airport to Dallas in July is currently the most expensive (average of £1,076). 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 LHR to DFW?

Find hourly flight availability from Heathrow to Dallas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 July 2025.

One of the essential ways to save on airfare from London Heathrow Airport to Dallas is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 18% on airfare.

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

Use this chart to determine the cheapest time to fly return from Heathrow to Dallas. Price data was last updated on 16 December 2024.

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

Weekly flight availability from London Heathrow Airport to Dallas

Explore weekly flight availability from Heathrow to Dallas. 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 15 July 2025.

The most flights from LHR to A78 are scheduled on a Monday (28 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (25 on average).

How much does it cost for a return flight from London Heathrow Airport to Dallas?

Reviews of airlines servicing Dallas

Get insights into the airlines that provide service to Dallas. 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 Dallas. Reviews last updated 15 July 2025.
Read reviews from past customers who have flown with Delta, KLM, andAir France from London Heathrow Airport to Dallas. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,956 reviews
Check prices

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very Good
7,956 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
KLM
7.8
Good
1,372 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Air France
7.5
Good
1,466 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Aeromexico
7.5
Good
1,717 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Virgin Atlantic
7.4
Good
655 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

Related info for your journey

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

    According to our current data, Icelandair (£524), JetBlue (£534), and Scandinavian Airlines (£608) offers the cheapest pricing from London Heathrow Airport to Dallas. You may be able to fly from London Heathrow Airport to Dallas for 29% less than the average price by searching for these airlines.

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

    £547 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on WestJet and Aeromexico, with prices starting from £619 and £743, respectively.

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

    The top 3 most reliable airlines when flying from London Heathrow Airport to Dallas are Malaysia Airlines (85%), Royal Jordanian (82%) and American Airlines (78%).

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

    While on average a flight from London Heathrow Airport to Dallas is generally £2,499, our data shows the cheapest flight currently is £505. When looking at the most popular route, (London Heathrow - Dallas/Fort Worth), you can expect to pay £520 for that flight.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Dallas (average of £737). Flying from London Heathrow Airport to Dallas in July is currently the most expensive (average of £1,076). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Heathrow to Dallas

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

Discover the top 10 airlines that operate flights from Heathrow to Dallas. 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 858,174 searches. Data last updated 15 July 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£430Average£553FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IcelandairCheapest£443Average£620FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
JetBlueCheapest£454Average£594FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
United AirlinesCheapest£463Average£739FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest£468Average£797FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AtlanticCheapest£470Average£852FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£484Average£623FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Air FranceCheapest£485Average£867FlexibilityNo cancel feeOn-time77%
Search Air France flights
Scandinavian AirlinesCheapest£497Average£744FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
IberiaCheapest£546Average£824FlexibilityNo cancel feeOn-time77%
Search Iberia flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Dallas?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Heathrow to Dallas. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Dallas?

Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to Dallas for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Heathrow to Dallas with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Dallas, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Heathrow to Dallas 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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