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Cheap flights from London Heathrow Airport to Dallas from £379

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DFW
23 May — 30 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 44 days in advance, depart on a Thursday or Monday 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 23 April 2026.

Mon 4/507:05
LHR
-
DFW
3 stops22h 43m
Multiple Airlines
Thu 7/506:15
DFW
-
LHR
3 stops26h 20m
Multiple Airlines
Deal found 19/4£668
Thu 21/517:30
LHR
-
DFW
2 stops33h 34m
Scandinavian Airlines
Sat 6/608:10
DFW
-
LHR
2 stops19h 25m
Scandinavian Airlines
Deal found 20/4£670
Thu 30/408:45
LHR
-
DFW
3 stops29h 00m
Multiple Airlines
Sun 3/519:55
DFW
-
LHR
3 stops38h 30m
Multiple Airlines
Deal found 21/4£672
Sat 9/508:30
LHR
-
DFW
3 stops21h 18m
Multiple Airlines
Sat 16/506:20
DFW
-
LHR
3 stops18h 10m
Multiple Airlines
Deal found 22/4£673
Thu 15/1019:30
LHR
-
DFW
2 stops34h 43m
Scandinavian Airlines
Mon 19/1011:15
DFW
-
LHR
2 stops16h 05m
Scandinavian Airlines
Deal found 21/4£675
Wed 18/1106:40
LHR
-
DFW
2 stops23h 33m
Scandinavian Airlines
Wed 2/1213:25
DFW
-
LHR
2 stops20h 35m
Scandinavian Airlines
Deal found 19/4£676
Wed 18/1106:40
LHR
-
DAL
2 stops21h 52m
Scandinavian Airlines
Wed 25/1112:01
DAL
-
LHR
2 stops24h 29m
Scandinavian Airlines
Deal found 19/4£676
Sat 9/507:45
LHR
-
DFW
2 stops31h 40m
Multiple Airlines
Sun 17/507:55
DFW
-
LHR
1 stop17h 20m
Multiple Airlines
Deal found 21/4£676
Mon 24/818:40
LHR
-
DFW
2 stops34h 51m
Scandinavian Airlines
Sun 30/813:30
DFW
-
LHR
2 stops44h 30m
Scandinavian Airlines
Deal found 22/4£677
Mon 12/1017:00
LHR
-
DAL
2 stops35h 32m
Scandinavian Airlines
Tue 20/1012:01
DAL
-
LHR
2 stops27h 39m
Scandinavian Airlines
Deal found 22/4£677
Sat 2/506:40
LHR
-
DFW
2 stops21h 44m
Scandinavian Airlines
Sat 16/508:10
DFW
-
LHR
2 stops19h 25m
Scandinavian Airlines
Deal found 22/4£680
Thu 7/513:05
LHR
-
DFW
3 stops26h 51m
Multiple Airlines
Tue 12/510:10
DFW
-
LHR
2 stops28h 10m
Multiple Airlines
Deal found 18/4£681

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 23 April 2026.

Round-trip from

£668

One-way from

£379

Popular in

July

Cheapest in

November

Average price

£811
4/5-7/5
  • 4/5-7/5
  • 6 total stops
  • 49h 03m total
  • London to Dallas
Search Deals
9/5
  • 9/5
  • 3 total stops
  • 46h 11m total
  • London to Dallas
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£60 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£15 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 23 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

Wed 3/6

07:05-21:04

2 stops19h 59m

Dallas/Fort Worth

Sun 7/6

08:15-09:35

2 stops19h 20m

£802

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Fri 4/9

06:40-22:14

2 stops21h 34m

Dallas/Fort Worth

Fri 11/9

08:45-09:35

2 stops18h 50m

£841

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Mon 19/10

06:40-23:30

2 stops22h 50m

Dallas/Fort Worth

Sat 7/11

11:15-14:35

3 stops21h 20m

£895

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Thu 28/5

16:45-22:31

2 stops35h 46m

Dallas/Fort Worth

Fri 19/6

14:30-16:00

1 stop19h 30m

£911

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Mon 4/5

14:05-21:45

1 stop13h 40m

Dallas/Fort Worth

Mon 18/5

15:30-11:35

1 stop14h 05m

£913

LondonDallas

LHR - DAL

LHRDAL

London Heathrow

Wed 7/10

15:15-22:32

1 stop13h 17m

Dallas Love Field

Tue 13/10

12:01-06:25

1 stop12h 24m

£913

LondonDallas

LHR - DAL

LHRDAL

London Heathrow

Wed 30/9

13:25-20:30

1 stop13h 05m

Dallas Love Field

Sun 4/10

18:37-06:25

1 stop29h 48m

£913

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Fri 21/8

07:05-21:18

3 stops20h 13m

Dallas/Fort Worth

Sun 23/8

07:35-09:20

2 stops19h 45m

£920

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Sun 5/7

16:45-12:45

1 stop26h 00m

Dallas/Fort Worth

Sat 1/8

14:15-22:25

2 stops26h 10m

£923

LondonDallas

LHR - DAL

LHRDAL

London Heathrow

Fri 4/9

06:30-17:47

2 stops17h 17m

Dallas Love Field

Wed 9/9

14:55-12:05

2 stops15h 10m

£930

Flights are sorted by cheapest return flights first.

Deals found on 22/4

Showing 1-10 of 46 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 17 April 2026.

The best time to book flights from London Heathrow Airport to Dallas is 44 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, June is the cheapest month in which you can book a flight from London Heathrow Airport to Dallas (average of £131). Flying from London Heathrow Airport to Dallas in September is currently the most expensive (average of £1,871). 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 23 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 23 April 2026.

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?

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 149 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 evening 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 23 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
1,390 reviews
Check prices

Crew

8.2

Food

6.7

Entertainment

6.9

Overall

7.7

Boarding

7.7

Comfort

7.4

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
1,390 reviews
Finnair
7.7
Good
1,390 reviews
Check prices

Crew

8.2

Food

6.7

Entertainment

6.9

Overall

7.7

Boarding

7.7

Comfort

7.4

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
1,756 reviews
Finnair
7.7
Good
1,390 reviews
Check prices

Crew

8.2

Food

6.7

Entertainment

6.9

Overall

7.7

Boarding

7.7

Comfort

7.4

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
11,659 reviews
Finnair
7.7
Good
1,390 reviews
Check prices

Crew

8.2

Food

6.7

Entertainment

6.9

Overall

7.7

Boarding

7.7

Comfort

7.4

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
3,191 reviews
Finnair
7.7
Good
1,390 reviews
Check prices

Crew

8.2

Food

6.7

Entertainment

6.9

Overall

7.7

Boarding

7.7

Comfort

7.4

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
7,906 reviews
Finnair
7.7
Good
1,390 reviews
Check prices

Crew

8.2

Food

6.7

Entertainment

6.9

Overall

7.7

Boarding

7.7

Comfort

7.4

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 13h 40m. 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, Spirit Airlines (£74), Virgin Atlantic (£414), and Lufthansa (£421) 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?

    £384 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 £492 and £529, 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 Gulf Air (77%), Royal Jordanian (75%) and Malaysia Airlines (72%).

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

    While on average a flight from London Heathrow Airport to Dallas is generally £1,868, our data shows the cheapest flight currently is £425. When looking at the most popular route, (London Heathrow - Dallas/Fort Worth), you can expect to pay £668 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, June is the cheapest month in which you can book a flight from London Heathrow Airport to Dallas (average of £131). Flying from London Heathrow Airport to Dallas in September is currently the most expensive (average of £1,871). 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 23 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest£74Average£110FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
Virgin AtlanticCheapest£414Average£768FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£421Average£673FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£462Average£699FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
JetBlueCheapest£467Average£605FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IcelandairCheapest£482Average£634FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Air FranceCheapest£510Average£900FlexibilityNo cancel feeOn-time77%
Search Air France flights
FinnairCheapest£517Average£792FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Air CanadaCheapest£521Average£678FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Scandinavian AirlinesCheapest£547Average£677FlexibilityNo 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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