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Cheap flights from London Heathrow Airport to Dallas from £265

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.
LHR — DFW
18 Jun — 25 Jun1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Dallas are usually found in January or November, 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 13 June 2025.

Round-trip from

£510

One-way from

£265

Popular in

July

Cheapest in

January

Average price

£721
Icelandair
  • Icelandair
  • 9/9-23/9
  • 2 total stops
  • 45h 08m total
  • London to Dallas
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10/9
  • 10/9
  • 2 total stops
  • 49h 10m total
  • London to Dallas
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£107 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).
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Average for round-trip flights in June 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 13 June 2025.

Tue 9/908:25LHR - DFW
1 stop33h 33mIcelandair
Tue 23/912:55DFW - LHR
1 stop11h 35mIcelandair
Deal found 11/6£510
Thu 11/909:50LHR - DFW
2 stops21h 07mMultiple Airlines
Thu 2/1007:19DFW - LHR
2 stops18h 41mMultiple Airlines
Deal found 12/6£516
Sat 30/808:25LHR - DFW
1 stop14h 47mJetBlue
Tue 9/912:55DFW - LHR
1 stop11h 35mJetBlue
Deal found 10/6£517
Sat 30/806:40LHR - DFW
2 stops23h 19mScandinavian Airlines
Sat 6/907:10DFW - LHR
2 stops20h 25mScandinavian Airlines
Deal found 11/6£572
Mon 1/909:30LHR - DFW
1 stop15h 50mFinnair
Tue 30/916:50DFW - LHR
1 stop16h 20mFinnair
Deal found 12/6£573
Tue 2/907:40LHR - DFW
1 stop14h 30mBritish Airways
Wed 10/921:15DFW - LHR
Nonstop9h 15mBritish Airways
Deal found 12/6£578
Sat 30/806:40LHR - DAL
2 stops23h 09mScandinavian Airlines
Sat 6/915:52DAL - LHR
2 stops18h 08mScandinavian Airlines
Deal found 11/6£583
Tue 2/911:45LHR - DAL
2 stops18h 04mVirgin Atlantic
Thu 11/910:20DAL - LHR
1 stop14h 55mVirgin Atlantic
Deal found 11/6£619
Tue 2/919:15LHR - DFW
2 stops33h 20mVirgin Atlantic
Thu 11/911:20DFW - LHR
1 stop13h 25mVirgin Atlantic
Deal found 11/6£620
Tue 9/1210:15LHR - DFW
Nonstop10h 35mAmerican Airlines
Tue 16/1215:30DFW - LHR
1 stop12h 10mAmerican Airlines
Deal found 11/6£626
Tue 26/809:20LHR - DAL
1 stop14h 23mAir France
Tue 9/918:28DAL - LHR
1 stop13h 02mAir France
Deal found 11/6£631
Tue 2/909:55LHR - DFW
2 stops17h 32mDelta
Wed 10/913:23DFW - LHR
1 stop18h 07mDelta
Deal found 11/6£638

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 13 June 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

Tue 9/9

08:25-11:58

1 stop33h 33m

Dallas/Fort Worth

Tue 23/9

12:55-06:30

1 stop11h 35m

£510

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Thu 11/9

09:50-00:57

2 stops21h 07m

Dallas/Fort Worth

Thu 2/10

07:19-08:00

2 stops18h 41m

£516

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Sat 30/8

08:25-17:12

1 stop14h 47m

Dallas/Fort Worth

Tue 9/9

12:55-06:30

1 stop11h 35m

£517

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Sat 30/8

06:40-23:59

2 stops23h 19m

Dallas/Fort Worth

Sat 6/9

07:10-09:35

2 stops20h 25m

£572

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Mon 1/9

09:30-19:20

1 stop15h 50m

Dallas/Fort Worth

Tue 30/9

16:50-15:10

1 stop16h 20m

£573

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Tue 2/9

07:40-16:10

1 stop14h 30m

Dallas/Fort Worth

Wed 10/9

21:15-12:30

Nonstop9h 15m

£578

LondonDallas

LHR - DAL

LHRDAL

London Heathrow

Sat 30/8

06:40-23:49

2 stops23h 09m

Dallas Love Field

Sat 6/9

15:52-16:00

2 stops18h 08m

£583

LondonDallas

LHR - DAL

LHRDAL

London Heathrow

Tue 2/9

11:45-23:49

2 stops18h 04m

Dallas Love Field

Thu 11/9

10:20-07:15

1 stop14h 55m

£619

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Tue 2/9

19:15-22:35

2 stops33h 20m

Dallas/Fort Worth

Thu 11/9

11:20-06:45

1 stop13h 25m

£620

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Tue 9/12

10:15-14:50

Nonstop10h 35m

Dallas/Fort Worth

Tue 16/12

15:30-09:40

1 stop12h 10m

£626

Flights are sorted by cheapest return flights first.

Deals found on 11/6

Showing 1-10 of 29 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 9 June 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 13 June 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 17% 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 13 June 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).

Rainfall in Dallas by month

Plan your trip to Dallas by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Dallas ranges from 48.0 - 125.0 inches per month. May is typically the wettest month, when rainfall can reach 125.0 mm. August is typically the driest time to visit Dallas when rainfall is around 48.0 mm.

Temperature in Dallas by month

Plan your trip to Dallas by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Dallas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 30.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 8.0 C).

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 13 June 2025.
Get a feel of what it's like to fly with Delta, KLM and Finnair from London to Dallas 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
7,946 reviews
Check prices

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

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
7,946 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

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!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

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
1,290 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

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!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

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!
Aeromexico
7.5
Good
1,706 reviews
Delta
8.0
Very Good
7,946 reviews
Check prices

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Crew

8.5

Comfort

7.9

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 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 (£510), JetBlue (£517), and Scandinavian Airlines (£572) offers the cheapest pricing from London Heathrow Airport to Dallas. You may be able to fly from London Heathrow Airport to Dallas for 30% 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?

    £578 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on Scandinavian Airlines and Virgin Atlantic, with prices starting from £816 and £846, 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 (89%), Royal Jordanian (85%) and American Airlines (83%).

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

    While on average a flight from London Heathrow Airport to Dallas is generally £1,968, our data shows the cheapest flight currently is £402. When looking at the most popular route, (London Heathrow - Dallas/Fort Worth), you can expect to pay £553 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 £43 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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London City to Brownsville flights
Heathrow to Brownsville flights
Southend to Dallas/Fort Worth flights
Heathrow to Harlingen flights

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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest£426Average£531FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
IcelandairCheapest£439Average£594FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
JetBlueCheapest£448Average£587FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
United AirlinesCheapest£455Average£695FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest£464Average£727FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AtlanticCheapest£466Average£799FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£479Average£619FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Air FranceCheapest£480Average£848FlexibilityNo cancel feeOn-time77%
Search Air France flights
Scandinavian AirlinesCheapest£492Average£738FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
IberiaCheapest£542Average£816FlexibilityNo 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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