Cheap flights from London Heathrow Airport to Dallas from £258

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 14/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DFW
12 Oct — 19 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from London Heathrow to Dallas are usually found in January or February, booked 45 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 September 2025.

Round-trip from

£481

One-way from

£258

Popular in

July

Cheapest in

January

Average price

£673
22/10-8/11
  • 22/10-8/11
  • 4 total stops
  • 38h 53m total
  • London to Dallas
14/10
  • 14/10
  • 3 total stops
  • 54h 23m total
  • London to Dallas
Highest demand for flights based on searches. 15% potential increase in price (£100 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Average for round-trip flights in September 2025

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 September 2025.

Wed 22/1014:05LHR - DFW
2 stops16h 52mMultiple Airlines
Sat 8/1107:19DFW - LHR
2 stops22h 01mMultiple Airlines
Deal found 12/9£481
Tue 11/1112:05LHR - DFW
3 stops31h 53mMultiple Airlines
Tue 18/1119:15DFW - LHR
3 stops29h 55mMultiple Airlines
Deal found 11/9£482
Wed 8/1007:40LHR - DFW
2 stops28h 06mMultiple Airlines
Wed 15/1014:56DFW - LHR
2 stops21h 59mMultiple Airlines
Deal found 10/9£491
Fri 10/1007:45LHR - DFW
2 stops23h 12mMultiple Airlines
Fri 17/1006:00DFW - LHR
2 stops22h 10mMultiple Airlines
Deal found 10/9£495
Thu 2/1017:40LHR - DFW
2 stops34h 37mMultiple Airlines
Sun 5/1005:10DFW - LHR
2 stops22h 25mMultiple Airlines
Deal found 11/9£495
Wed 15/1009:50LHR - DFW
2 stops25h 56mMultiple Airlines
Wed 22/1014:56DFW - LHR
2 stops23h 24mMultiple Airlines
Deal found 10/9£496
Mon 22/908:20LHR - DFW
2 stops42h 55mMultiple Airlines
Mon 6/1008:54DFW - LHR
1 stop16h 21mMultiple Airlines
Deal found 11/9£501
Sat 27/908:20LHR - DFW
1 stop21h 39mMultiple Airlines
Wed 1/1006:50DFW - LHR
1 stop17h 00mMultiple Airlines
Deal found 11/9£504
Sat 22/1106:40LHR - DAL
2 stops23h 08mScandinavian Airlines
Sat 6/1215:45DAL - LHR
2 stops19h 55mScandinavian Airlines
Deal found 11/9£568
Thu 30/1006:40LHR - DAL
2 stops22h 15mScandinavian Airlines
Mon 10/1112:33DAL - LHR
2 stops23h 07mScandinavian Airlines
Deal found 10/9£571
Sat 1/1106:40LHR - DAL
2 stops22h 15mScandinavian Airlines
Sat 15/1115:59DAL - LHR
2 stops20h 31mScandinavian Airlines
Deal found 11/9£572
Fri 31/1006:40LHR - DAL
2 stops22h 15mScandinavian Airlines
Fri 7/1111:40DAL - LHR
2 stops22h 20mScandinavian Airlines
Deal found 12/9£582

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 September 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

Sat 7/2

09:20-18:38

1 stop15h 18m

Dallas/Fort Worth

Tue 24/2

11:00-06:55

1 stop13h 55m

£563

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Mon 22/9

09:40-23:59

2 stops20h 19m

Dallas/Fort Worth

Mon 6/10

08:54-05:50

1 stop14h 56m

£568

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Tue 23/9

10:20-05:50

2 stops25h 30m

Dallas/Fort Worth

Sat 27/9

14:54-21:20

3 stops24h 26m

£595

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Tue 11/11

06:40-23:33

2 stops22h 53m

Dallas/Fort Worth

Wed 14/1

08:45-16:25

3 stops25h 40m

£597

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Mon 3/11

07:50-16:35

1 stop14h 45m

Dallas/Fort Worth

Mon 8/12

15:45-08:35

1 stop10h 50m

£597

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Mon 3/11

10:20-23:35

2 stops19h 15m

Dallas/Fort Worth

Mon 8/12

11:31-18:30

2 stops24h 59m

£600

LondonDallas

LHR - DAL

LHRDAL

London Heathrow

Mon 3/11

06:40-23:55

2 stops23h 15m

Dallas Love Field

Mon 8/12

12:33-16:00

2 stops21h 27m

£600

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Sat 7/2

06:40-00:17

2 stops23h 37m

Dallas/Fort Worth

Wed 11/2

16:20-17:40

2 stops19h 20m

£604

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Sun 1/2

10:20-23:28

2 stops19h 08m

Dallas/Fort Worth

Mon 9/2

16:20-18:30

2 stops20h 10m

£604

LondonDallas

LHR - DAL

LHRDAL

London Heathrow

Fri 6/2

06:40-22:36

2 stops21h 56m

Dallas Love Field

Mon 9/2

15:45-16:00

2 stops18h 15m

£604

Flights are sorted by cheapest return flights first.

Deals found on 10/9

Showing 1-10 of 44 results
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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 29 August 2025.

The best time to book flights from London Heathrow Airport to Dallas is 45 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 September 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 19% 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 September 2025.

The most flights from LHR to A78 are scheduled on a Monday (28 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (27 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 12 September 2025.
Read reviews from past customers who have flown with Finnair, Virgin Atlantic, andIberia 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.

Boarding

7.6

Overall

7.6

Comfort

7.5

Crew

8.1

Entertainment

6.9

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Boarding

7.6

Overall

7.6

Comfort

7.5

Crew

8.1

Entertainment

6.9

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Boarding

7.6

Overall

7.6

Comfort

7.5

Crew

8.1

Entertainment

6.9

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Boarding

7.6

Overall

7.6

Comfort

7.5

Crew

8.1

Entertainment

6.9

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Boarding

7.6

Overall

7.6

Comfort

7.5

Crew

8.1

Entertainment

6.9

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Boarding

7.6

Overall

7.6

Comfort

7.5

Crew

8.1

Entertainment

6.9

Food

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

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.
  • How long is the flight from London Heathrow Airport to Dallas?

    Departing from London Heathrow Airport to Dallas will take you 14h 45m. The distance between London Heathrow Airport and Dallas is about 4736 mi. This flight may include one or multiple stops.

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

    According to our current data, Lufthansa (£427), Icelandair (£440), and Virgin Atlantic (£446) offers the cheapest pricing from London Heathrow Airport to Dallas. You may be able to fly from London Heathrow Airport to Dallas for 42% less than the average price by searching for these airlines.

  • 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 (92%), American Airlines (73%) and Iberia (73%).

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

    While on average a flight from London Heathrow Airport to Dallas is generally £1,730, our data shows the cheapest flight currently is £516. When looking at the most popular route, (London Heathrow - Dallas/Fort Worth), you can expect to pay £457 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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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 September 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£427Average£565FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IcelandairCheapest£440Average£616FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Virgin AtlanticCheapest£446Average£779FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
JetBlueCheapest£451Average£590FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
United AirlinesCheapest£469Average£719FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
FinnairCheapest£479Average£615FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Scandinavian AirlinesCheapest£494Average£727FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
IberiaCheapest£540Average£823FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Air FranceCheapest£550Average£837FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air CanadaCheapest£564Average£678FlexibilityNo cancel feeOn-time67%
Search Air Canada 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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