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Cheap flights from London Heathrow Airport to Dallas from £444

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 23/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DFW
17 Jul — 24 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 12 July 2025.

Round-trip from

£520

One-way from

£455

Popular in

July

Cheapest in

January

Average price

£977
25/8-9/9
  • 25/8-9/9
  • 4 total stops
  • 51h 42m total
  • London to Dallas
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11/9
  • 11/9
  • 1 total stop
  • 12h 59m 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 12 July 2025.

Mon 25/820:30LHR - DFW
2 stops58h 20mMultiple Airlines
Tue 9/916:30DFW - LHR
1 stop21h 15mMultiple Airlines
Deal found 9/7£519
Sat 23/808:25LHR - DFW
1 stop14h 47mJetBlue
Mon 8/912:55DFW - LHR
1 stop11h 35mJetBlue
Deal found 11/7£523
Tue 9/908:15LHR - DFW
2 stops57h 43mIcelandair
Tue 23/912:55DFW - LHR
2 stops38h 35mIcelandair
Deal found 9/7£524
Mon 1/1207:30LHR - DFW
2 stops32h 05mUnited Airlines
Sat 13/1207:00DFW - LHR
2 stops17h 40mUnited Airlines
Deal found 9/7£532
Mon 27/1006:40LHR - DAL
2 stops22h 01mScandinavian Airlines
Sat 8/1112:01DAL - LHR
2 stops23h 39mScandinavian Airlines
Deal found 11/7£613
Mon 25/810:45LHR - DAL
2 stops19h 04mMultiple Airlines
Tue 9/906:00DAL - LHR
2 stops21h 25mMultiple Airlines
Deal found 9/7£638
Mon 25/810:45LHR - DAL
2 stops19h 04mDelta
Tue 9/906:00DAL - LHR
2 stops21h 25mDelta
Deal found 9/7£642
Mon 25/813:05LHR - DAL
1 stop14h 03mVirgin Atlantic
Tue 9/918:28DAL - LHR
1 stop13h 02mVirgin Atlantic
Deal found 10/7£668
Mon 25/815:15LHR - DAL
1 stop14h 34mKLM
Tue 9/915:52DAL - LHR
1 stop13h 18mKLM
Deal found 10/7£674
Mon 8/913:05LHR - DAL
1 stop14h 03mAir France
Wed 1/1011:59DAL - LHR
1 stop12h 46mAir France
Deal found 10/7£691

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 12 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

Mon 25/8

20:30-00:50

2 stops58h 20m

Dallas/Fort Worth

Tue 9/9

16:30-19:45

1 stop21h 15m

£519

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Sat 23/8

08:25-17:12

1 stop14h 47m

Dallas/Fort Worth

Mon 8/9

12:55-06:30

1 stop11h 35m

£523

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Tue 9/9

08:15-11:58

2 stops57h 43m

Dallas/Fort Worth

Tue 23/9

12:55-09:30

2 stops38h 35m

£524

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Mon 1/12

07:30-09:35

2 stops32h 05m

Dallas/Fort Worth

Sat 13/12

07:00-06:40

2 stops17h 40m

£532

LondonDallas

LHR - DAL

LHRDAL

London Heathrow

Mon 27/10

06:40-23:41

2 stops22h 01m

Dallas Love Field

Sat 8/11

12:01-17:40

2 stops23h 39m

£613

LondonDallas

LHR - DAL

LHRDAL

London Heathrow

Mon 25/8

10:45-23:49

2 stops19h 04m

Dallas Love Field

Tue 9/9

06:00-09:25

2 stops21h 25m

£638

LondonDallas

LHR - DAL

LHRDAL

London Heathrow

Mon 25/8

10:45-23:49

2 stops19h 04m

Dallas Love Field

Tue 9/9

06:00-09:25

2 stops21h 25m

£642

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

£668

LondonDallas

LHR - DAL

LHRDAL

London Heathrow

Mon 25/8

15:15-23:49

1 stop14h 34m

Dallas Love Field

Tue 9/9

15:52-11:10

1 stop13h 18m

£674

LondonDallas

LHR - DAL

LHRDAL

London Heathrow

Mon 8/9

13:05-21:08

1 stop14h 03m

Dallas Love Field

Wed 1/10

11:59-06:45

1 stop12h 46m

£691

Flights are sorted by cheapest return flights first.

Deals found on 9/7

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 27 June 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 12 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 12 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).

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 12 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
7,951 reviews
Check prices

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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
7,951 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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
7,951 reviews
Check prices

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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
1,468 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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
1,720 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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
654 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Overall

8.0

Comfort

7.9

Entertainment

7.9

Crew

8.5

Boarding

8.2

Food

7.3

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, JetBlue (£523), Icelandair (£526), and Scandinavian Airlines (£613) 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?

    £555 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Scandinavian Airlines and Aeromexico, with prices starting from £703 and £718, 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 £2,217, our data shows the cheapest flight currently is £486. When looking at the most popular route, (London Heathrow - Dallas/Fort Worth), you can expect to pay £492 for that flight.

  • Where are the most common stopover locations when flying from London Heathrow Airport to Dallas?

    Most of the time, London Heathrow Airport to Dallas flights that have stopovers will stop in New York.

  • What are some popular things to do or see while on a stopover in New York?

    Times Square, New York City Center, and August Wilson Theater are currently the most popular points of interest in New York at the moment. Times Square, New York City Center, and August Wilson Theater can be visited by traveling about 13.6 mi, 13.6 mi, and 13.7 mi respectively from New York John F Kennedy Intl. Those landing in New York looking to spend some time exploring during their stopover can hire a car for about £39 per day.

  • Where are the least popular stopover locations for London Heathrow Airport to Dallas flights?

    London Heathrow Airport to Dallas flights that have stopovers will least frequently stop in Dublin.

  • 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 12 July 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£428Average£543FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IcelandairCheapest£441Average£597FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
JetBlueCheapest£450Average£591FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
United AirlinesCheapest£461Average£694FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest£466Average£775FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AtlanticCheapest£468Average£855FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£482Average£620FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Air FranceCheapest£483Average£852FlexibilityNo cancel feeOn-time77%
Search Air France flights
Scandinavian AirlinesCheapest£494Average£741FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
IberiaCheapest£544Average£819FlexibilityNo 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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