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Cheap flights from London Heathrow Airport to Dallas from £510

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 19/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DFW
27 Aug — 3 Sep1
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 Wednesday 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 28 July 2026.

Thu 15/1017:00
LHR
-
DFW
2 stops37h 22m
Scandinavian Airlines
Wed 21/1011:15
DFW
-
LHR
2 stops16h 05m
Scandinavian Airlines
Deal found 28/7£643
Thu 17/906:00
LHR
-
DFW
2 stops20h 10m
Multiple Airlines
Tue 22/915:08
DFW
-
LHR
1 stop14h 57m
Multiple Airlines
Deal found 28/7£647
Thu 17/906:00
LHR
-
DFW
2 stops20h 10m
Multiple Airlines
Wed 23/915:08
DFW
-
LHR
1 stop14h 57m
Multiple Airlines
Deal found 28/7£649
Fri 11/906:40
LHR
-
DFW
2 stops21h 12m
Scandinavian Airlines
Fri 18/908:10
DFW
-
LHR
2 stops19h 25m
Scandinavian Airlines
Deal found 27/7£652
Fri 23/1007:05
LHR
-
DFW
3 stops20h 56m
Scandinavian Airlines
Sun 15/1107:10
DFW
-
LHR
2 stops26h 50m
Scandinavian Airlines
Deal found 28/7£653
Tue 3/1110:20
LHR
-
DFW
2 stops19h 38m
Scandinavian Airlines
Sun 15/1107:10
DFW
-
LHR
2 stops29h 20m
Scandinavian Airlines
Deal found 27/7£654
Thu 24/910:30
LHR
-
DFW
1 stop18h 53m
Multiple Airlines
Mon 28/907:55
DFW
-
LHR
1 stop16h 30m
Multiple Airlines
Deal found 28/7£654
Wed 16/907:05
LHR
-
DFW
2 stops22h 18m
Multiple Airlines
Thu 24/907:55
DFW
-
LHR
2 stops27h 45m
Multiple Airlines
Deal found 28/7£655
Tue 22/909:40
LHR
-
DFW
2 stops19h 43m
Multiple Airlines
Mon 28/907:55
DFW
-
LHR
2 stops19h 20m
Multiple Airlines
Deal found 27/7£656
Thu 15/1007:45
LHR
-
DFW
1 stop14h 46m
Multiple Airlines
Wed 21/1007:50
DFW
-
LHR
1 stop19h 30m
Multiple Airlines
Deal found 28/7£657
Tue 15/911:20
LHR
-
DFW
1 stop18h 03m
Multiple Airlines
Wed 23/907:55
DFW
-
LHR
1 stop17h 20m
Multiple Airlines
Deal found 28/7£657
Thu 10/1217:00
LHR
-
DFW
2 stops35h 04m
Scandinavian Airlines
Tue 15/1207:10
DFW
-
LHR
2 stops20h 10m
Scandinavian Airlines
Deal found 27/7£661

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 28 July 2026.

Round-trip from

£643

One-way from

£510

Popular in

July

Cheapest in

November

Average price

£1,116
Scandinavian Airlines
  • Scandinavian Airlines
  • 15/10-21/10
  • 4 total stops
  • 53h 27m total
  • London to Dallas
Search Deals
19/8
  • 19/8
  • 3 total stops
  • 33h 03m total
  • London to Dallas
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£110 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 28 July 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

Fri 11/9

06:40-21:52

3 stops21h 12m

Dallas/Fort Worth

Fri 18/9

08:10-14:35

2 stops24h 25m

£679

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Sat 24/10

06:40-00:04

2 stops23h 24m

Dallas/Fort Worth

Thu 29/10

08:45-18:30

2 stops28h 45m

£725

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Tue 22/9

22:40-22:35

2 stops29h 55m

Dallas/Fort Worth

Mon 16/11

20:20-22:30

1 stop20h 10m

£817

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Mon 24/8

06:40-23:59

2 stops23h 19m

Dallas/Fort Worth

Wed 30/12

09:40-16:00

2 stops24h 20m

£825

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Mon 26/10

07:05-00:04

3 stops21h 59m

Dallas/Fort Worth

Sun 1/11

07:05-16:00

2 stops26h 55m

£832

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Fri 6/11

06:25-14:38

2 stops38h 13m

Dallas/Fort Worth

Tue 10/11

20:10-22:30

1 stop20h 20m

£838

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Sun 18/10

18:30-12:45

1 stop24h 15m

Dallas/Fort Worth

Sun 25/10

21:10-22:30

1 stop20h 20m

£858

LondonDallas

LHR - DAL

LHRDAL

London Heathrow

Fri 2/10

13:05-23:30

2 stops16h 25m

Dallas Love Field

Thu 15/10

11:15-11:55

2 stops18h 40m

£864

LondonDallas

LHR - DAL

LHRDAL

London Heathrow

Sat 7/11

20:35-22:25

2 stops31h 50m

Dallas Love Field

Sat 21/11

13:05-10:50

2 stops15h 45m

£865

LondonDallas

LHR - DFW

LHRDFW

London Heathrow

Thu 12/11

22:40-18:25

1 stop25h 45m

Dallas/Fort Worth

Tue 17/11

07:00-14:55

2 stops25h 55m

£865

Flights are sorted by cheapest return flights first.

Deals found on 24/7

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

What is the cheapest month to book a flight from London Heathrow Airport to Dallas?

Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Dallas (average of £739). Flying from London Heathrow Airport to Dallas in July is currently the most expensive (average of £1,116). 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 28 July 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 28 July 2026.

The most flights from LHR to A78 are scheduled on a Monday (27 on average). You will have fewer flight options on Monday, 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?

Airfare is below average for this route at the moment.
London Heathrow Airport to Dallas flights typically cost between £766 and £1,179 in October.
The cheapest return price found within the last 5 days was £643 on Scandinavian Airlines (15 Oct–21 Oct).

How often are flights from London to Dallas delayed?

About 13% of weekly flights between London and Dallas have experienced delays in the past year, with the average delay time being 156 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 11% of flights being delayed.

How far ahead should I book a flight from London Heathrow Airport to Dallas?

The best time to book flights from London Heathrow Airport to Dallas is 43 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.

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 28 July 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
7.6
Good
1,427 reviews
Check prices

Comfort

7.4

Crew

8.2

Boarding

7.7

Entertainment

6.9

Food

6.7

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Finnair
7.6
Good
1,427 reviews
Finnair
7.6
Good
1,427 reviews
Check prices

Comfort

7.4

Crew

8.2

Boarding

7.7

Entertainment

6.9

Food

6.7

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Scandinavian Airlines
7.4
Good
1,903 reviews
Finnair
7.6
Good
1,427 reviews
Check prices

Comfort

7.4

Crew

8.2

Boarding

7.7

Entertainment

6.9

Food

6.7

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
American Airlines
7.1
Good
11,839 reviews
Finnair
7.6
Good
1,427 reviews
Check prices

Comfort

7.4

Crew

8.2

Boarding

7.7

Entertainment

6.9

Food

6.7

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
Iberia
7.0
Good
3,258 reviews
Finnair
7.6
Good
1,427 reviews
Check prices

Comfort

7.4

Crew

8.2

Boarding

7.7

Entertainment

6.9

Food

6.7

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
British Airways
6.7
Okay
8,129 reviews
Finnair
7.6
Good
1,427 reviews
Check prices

Comfort

7.4

Crew

8.2

Boarding

7.7

Entertainment

6.9

Food

6.7

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Jake,Jun 2026

RNO - SEA

Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.

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 55m. 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, Virgin Atlantic (£422), Lufthansa (£471), and JetBlue (£473) offers the cheapest pricing from London Heathrow Airport to Dallas. You may be able to fly from London Heathrow Airport to Dallas for 52% 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 Virgin Atlantic and Aer Lingus, with prices starting from £489 and £588, 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 (92%), Gulf Air (82%) and American Airlines (79%).

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

    While on average a flight from London Heathrow Airport to Dallas is generally £3,603, our data shows the cheapest flight currently is £456. When looking at the most popular route, (London Heathrow - Dallas/Fort Worth), you can expect to pay £437 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, November is the cheapest month in which you can book a flight from London Heathrow Airport to Dallas (average of £739). Flying from London Heathrow Airport to Dallas in July is currently the most expensive (average of £1,116). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 28 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£422Average£776FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
LufthansaCheapest£471Average£786FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
JetBlueCheapest£473Average£589FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
United AirlinesCheapest£487Average£780FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest£529Average£641FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Scandinavian AirlinesCheapest£557Average£695FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
British AirwaysCheapest£648Average£884FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£661Average£961FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Brussels AirlinesCheapest£679Average£893FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
FinnairCheapest£689Average£970FlexibilityNo cancel feeOn-time76%
Search Finnair 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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