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Cheap flights from London Heathrow Airport to Dallas from £375

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 16/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DFW
2 May — 9 May1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Dallas are usually found in November or September, booked 85 days in advance, depart on a Thursday or Wednesday and return on a Monday

Cheap flight deals from Heathrow to Dallas

Enter your travel dates to find the best prices.

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 2 April 2026.

Thu 30/411:05
LHR
-
DFW
2 stops58h 14m
United Airlines
Sat 2/517:20
DFW
-
LHR
2 stops35h 50m
United Airlines
Deal found 1/4£649
Mon 20/407:45
LHR
-
DFW
2 stops22h 12m
Multiple Airlines
Thu 30/410:21
DFW
-
LHR
1 stop13h 34m
Multiple Airlines
Deal found 30/3£649
Mon 27/422:15
LHR
-
DFW
2 stops33h 42m
Multiple Airlines
Mon 11/515:17
DFW
-
LHR
1 stop14h 48m
Multiple Airlines
Deal found 29/3£651
Mon 13/408:30
LHR
-
DFW
2 stops21h 29m
Multiple Airlines
Mon 27/405:45
DFW
-
LHR
3 stops24h 05m
Multiple Airlines
Deal found 1/4£653
Tue 14/409:30
LHR
-
DFW
1 stop15h 40m
Multiple Airlines
Fri 24/410:21
DFW
-
LHR
1 stop15h 59m
Multiple Airlines
Deal found 1/4£654
Fri 24/421:25
LHR
-
DFW
2 stops32h 56m
Multiple Airlines
Wed 29/405:45
DFW
-
LHR
2 stops32h 35m
Multiple Airlines
Deal found 30/3£655
Sun 26/421:05
LHR
-
DFW
2 stops27h 43m
Multiple Airlines
Sun 3/510:21
DFW
-
LHR
2 stops27h 34m
Multiple Airlines
Deal found 29/3£656
Fri 24/407:05
LHR
-
DFW
3 stops22h 04m
Multiple Airlines
Mon 27/410:21
DFW
-
LHR
2 stops26h 29m
Multiple Airlines
Deal found 31/3£657
Fri 28/806:40
LHR
-
DAL
2 stops21h 47m
Scandinavian Airlines
Sun 6/914:55
DAL
-
LHR
2 stops36h 25m
Scandinavian Airlines
Deal found 1/4£675
Wed 18/1106:40
LHR
-
DAL
2 stops21h 52m
Scandinavian Airlines
Wed 25/1112:01
DAL
-
LHR
2 stops24h 29m
Scandinavian Airlines
Deal found 30/3£676
Wed 18/1106:40
LHR
-
DAL
2 stops21h 52m
Scandinavian Airlines
Wed 2/1212:01
DAL
-
LHR
2 stops23h 39m
Scandinavian Airlines
Deal found 31/3£677
Tue 14/406:40
LHR
-
DAL
2 stops21h 53m
Scandinavian Airlines
Tue 28/410:17
DAL
-
LHR
2 stops23h 43m
Scandinavian Airlines
Deal found 1/4£694

Find 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 2 April 2026.

Round-trip from

£649

One-way from

£375

Popular in

July

Cheapest in

November

Average price

£795
United Airlines
  • United Airlines
  • 30/4-2/5
  • 4 total stops
  • 94h 04m total
  • London to Dallas
Search Deals
16/5
  • 16/5
  • 2 total stops
  • 44h 10m total
  • London to Dallas
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£64 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 2 April 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Dallas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Thu 23/4

06:40-22:08

2 stops21h 28m

Dallas/Fort Worth

Mon 27/4

08:00-09:35

2 stops19h 35m

£716

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Thu 24/9

06:30-19:35

1 stop19h 05m

Dallas/Fort Worth

Thu 1/10

21:30-22:25

1 stop18h 55m

£731

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Fri 24/4

06:30-19:35

1 stop19h 05m

Dallas/Fort Worth

Mon 27/4

14:30-15:10

1 stop18h 40m

£763

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Sat 30/5

06:40-00:12

2 stops23h 32m

Dallas/Fort Worth

Sun 7/6

08:15-09:35

2 stops19h 20m

£813

LondonDallas

LHR - DAL

LHRDAL

London Heathrow

Tue 14/4

06:40-22:33

2 stops21h 53m

Dallas Love Field

Tue 21/4

10:17-17:40

2 stops25h 23m

£843

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Sat 19/9

12:05-19:02

1 stop12h 57m

Dallas/Fort Worth

Sun 20/9

12:15-21:00

2 stops26h 45m

£883

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Thu 24/9

08:50-16:15

1 stop13h 25m

Dallas/Fort Worth

Thu 1/10

17:55-09:00

Nonstop9h 05m

£890

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Fri 11/9

06:30-13:35

1 stop13h 05m

Dallas/Fort Worth

Thu 17/9

16:01-11:35

1 stop13h 34m

£895

LondonDallas

LHR - DAL

LHRDAL

London Heathrow

Tue 29/9

06:15-17:47

2 stops17h 32m

Dallas Love Field

Tue 20/10

18:37-13:15

1 stop12h 38m

£904

LondonDallas

LHR - DAL

LHRDAL

London Heathrow

Mon 14/9

11:45-22:27

2 stops16h 42m

Dallas Love Field

Mon 5/10

12:01-06:25

1 stop12h 24m

£914

Flights are sorted by cheapest return flights first.

Deals found on 1/4

Showing 1-10 of 42 resultsSorted by cheapest first
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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 2 April 2026.

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, July is the cheapest month in which you can book a flight from London Heathrow Airport to Dallas (average of £384). Flying from London Heathrow Airport to Dallas in December is currently the most expensive (average of £626). 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 2 April 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Dallas as you normally would.

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 2 April 2026.

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 (16 on average).

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

How often are flights from London to Dallas delayed?

About 12% of weekly flights between London and Dallas have experienced delays in the past year, with the average delay time being 152 minutes.

What is the most punctual flight time for London to Dallas flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on London to Dallas flights?

Over the past year, American Airlines have had the lowest number of delays on this route, with just 10% of flights being delayed.

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 2 April 2026.
Read reviews from past customers who have flown with Finnair,Scandinavian Airlines, andAmerican Airlines 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.
Finnair
7.7
Good
1,376 reviews
Check prices

Boarding

7.7

Comfort

7.5

Food

6.7

Entertainment

6.9

Overall

7.7

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Finnair
7.7
Good
1,376 reviews
Finnair
7.7
Good
1,376 reviews
Check prices

Boarding

7.7

Comfort

7.5

Food

6.7

Entertainment

6.9

Overall

7.7

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Scandinavian Airlines
7.3
Good
1,737 reviews
Finnair
7.7
Good
1,376 reviews
Check prices

Boarding

7.7

Comfort

7.5

Food

6.7

Entertainment

6.9

Overall

7.7

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
American Airlines
7.1
Good
11,549 reviews
Finnair
7.7
Good
1,376 reviews
Check prices

Boarding

7.7

Comfort

7.5

Food

6.7

Entertainment

6.9

Overall

7.7

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
Iberia
7.0
Good
3,164 reviews
Finnair
7.7
Good
1,376 reviews
Check prices

Boarding

7.7

Comfort

7.5

Food

6.7

Entertainment

6.9

Overall

7.7

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights
British Airways
6.7
Okay
7,841 reviews
Finnair
7.7
Good
1,376 reviews
Check prices

Boarding

7.7

Comfort

7.5

Food

6.7

Entertainment

6.9

Overall

7.7

Crew

8.2

Reviews

1 / 20
2.0
Mediocre

Vlad-Valentin,Jan 2026

LHR - YVR

baggage allowance was different between the outgoing and inbound flights

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 17h 32m. The distance between London Heathrow Airport and Dallas is about 4732 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, Spirit Airlines (£75), Virgin Atlantic (£421), and Lufthansa (£428) offers the cheapest pricing from London Heathrow Airport to Dallas. You may be able to fly from London Heathrow Airport to Dallas for 90% 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?

    £391 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on Lufthansa and Virgin Atlantic, with prices starting from £518 and £538, 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 Royal Jordanian (87%), Gulf Air (81%) and Malaysia Airlines (80%).

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

    While on average a flight from London Heathrow Airport to Dallas is generally £1,947, our data shows the cheapest flight currently is £451. When looking at the most popular route, (London Heathrow - Dallas/Fort Worth), you can expect to pay £653 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, July is the cheapest month in which you can book a flight from London Heathrow Airport to Dallas (average of £384). Flying from London Heathrow Airport to Dallas in December is currently the most expensive (average of £626). 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 2 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest£75Average£112FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
Virgin AtlanticCheapest£421Average£783FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£428Average£684FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£465Average£710FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
JetBlueCheapest£474Average£615FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IcelandairCheapest£504Average£640FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
FinnairCheapest£513Average£761FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Air FranceCheapest£518Average£915FlexibilityNo cancel feeOn-time77%
Search Air France flights
Air CanadaCheapest£529Average£690FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Scandinavian AirlinesCheapest£556Average£690FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines 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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