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.

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.

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).

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.

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 most popular airlines that fly from London Heathrow Airport to Dallas?

American Airlines, Air Canada and Air France are the most popular airlines when flying from London Heathrow Airport to Dallas.

What is the cheapest day to fly round-trip from London Heathrow Airport to Dallas?

It’s generally more expensive to depart on a Tuesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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

Travelers have found it’s best to book a flight 52 days in advance to save up to 28% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 52 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from London Heathrow Airport to Dallas 1-2 weeks in advance for as low as £686, or £914 for flights within the next 24 hours.

What is the cheapest month to fly from London Heathrow Airport to Dallas?

January can be a great time to fly to Dallas from London Heathrow Airport with a flight ticket averaging about £734. Cheapflights users have found deals in the month of January for as cheap as £470. The most expensive prices can be found in the month of August.

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.

£258+ Cheap Flights from London Heathrow Airport to Dallas

Q: 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 £577 and £733 in October. The cheapest return flight price found within the last 3 days was £481 on Multiple Airlines (22 Oct-8 Nov).

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

Round-trip from	£481
One-way from	£258
Popular in	July
Cheapest in	January
Average price	£673

22/10-8/11
4 total stops
38h 53m total
London to Dallas

Search Deals

14/10
3 total stops
54h 23m total
London to Dallas

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (£100 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

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

Best flights from Heathrow to Dallas
Discover carefully curated flight deals from Heathrow to Dallas that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 September 2025.

Sat 7/209:20LHR - DFW

1 stop15h 18mJetBlue

Tue 24/211:00DFW - LHR

1 stop13h 55mJetBlue

Deal found 11/9£563

Mon 22/909:40LHR - DFW

2 stops20h 19mMultiple Airlines

Mon 6/1008:54DFW - LHR

1 stop14h 56mMultiple Airlines

Deal found 12/9£568

Tue 11/1106:40LHR - DFW

2 stops22h 53mScandinavian Airlines

Wed 14/108:45DFW - LHR

3 stops25h 40mScandinavian Airlines

Deal found 10/9£597

Mon 3/1107:50LHR - DFW

1 stop14h 45mBritish Airways

Mon 8/1215:45DFW - LHR

1 stop10h 50mBritish Airways

Deal found 10/9£597

Mon 6/1006:30LHR - DFW

1 stop13h 35mUnited Airlines

Sat 18/1017:30DFW - LHR

1 stop11h 55mUnited Airlines

Deal found 11/9£611

Mon 22/911:45LHR - DAL

2 stops18h 04mVirgin Atlantic

Mon 6/1010:04DAL - LHR

1 stop21h 26mVirgin Atlantic

Deal found 11/9£642

Mon 3/1110:45LHR - DAL

1 stop13h 09mDelta

Tue 2/1214:00DAL - LHR

1 stop11h 50mDelta

Deal found 10/9£655

Tue 23/910:20LHR - DFW

2 stops25h 30mMultiple Airlines

Sat 27/914:54DFW - LHR

3 stops24h 26mMultiple Airlines

Deal found 11/9£595

Mon 3/1110:20LHR - DFW

2 stops19h 15mScandinavian Airlines

Mon 8/1211:31DFW - LHR

2 stops24h 59mScandinavian Airlines

Deal found 10/9£600

Mon 6/1006:30LHR - DFW

1 stop13h 35mUnited Airlines

Sun 19/1017:25DFW - LHR

1 stop11h 15mUnited Airlines

Deal found 11/9£611

Wed 8/1011:45LHR - DAL

2 stops18h 10mVirgin Atlantic

Wed 22/1011:40DAL - LHR

2 stops14h 25mVirgin Atlantic

Deal found 11/9£642

Mon 3/1108:55LHR - DAL

1 stop14h 59mDelta

Thu 4/1215:59DAL - LHR

1 stop11h 01mDelta

Deal found 10/9£655

Direct flights from Heathrow to Dallas
Explore direct flight options from Heathrow to Dallas based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 September 2025.

Wed 1/1012:00LHR - DFW

Nonstop10h 15mBritish Airways

Tue 4/1115:50DFW - LHR

Nonstop9h 00mBritish Airways

Deal found 11/9£610

Wed 1/1012:00LHR - DFW

Nonstop10h 15mBritish Airways

Thu 16/1015:25DFW - LHR

Nonstop9h 00mBritish Airways

Deal found 10/9£611

Mon 22/912:00LHR - DFW

Nonstop10h 15mBritish Airways

Mon 6/1022:59DFW - LHR

Nonstop9h 26mBritish Airways

Deal found 11/9£614

Mon 29/916:25LHR - DFW

Nonstop10h 14mBritish Airways

Mon 6/1021:45DFW - LHR

Nonstop9h 00mBritish Airways

Deal found 11/9£620

Mon 22/912:00LHR - DFW

Nonstop10h 15mAmerican Airlines

Mon 6/1018:00DFW - LHR

Nonstop9h 00mAmerican Airlines

Deal found 12/9£628

Tue 7/1012:00LHR - DFW

Nonstop10h 25mBritish Airways

Thu 23/1021:45DFW - LHR

Nonstop9h 00mBritish Airways

Deal found 11/9£630

Thu 4/1216:30LHR - DFW

Nonstop10h 35mBritish Airways

Thu 11/1215:45DFW - LHR

Nonstop9h 05mBritish Airways

Deal found 11/9£640

Sun 28/908:20LHR - DFW

Nonstop10h 05mBritish Airways

Tue 14/1022:59DFW - LHR

Nonstop9h 26mBritish Airways

Deal found 10/9£641

Last-minute flights from Heathrow to Dallas
Discover last-minute flight deals from Heathrow to Dallas. Data last updated 12 September 2025 and is based on user searches.

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

Thu 2/1017:40LHR - DFW

2 stops34h 37mMultiple Airlines

Sun 5/1005:10DFW - LHR

2 stops22h 25mMultiple Airlines

Deal found 11/9£495

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

Wed 15/1009:50LHR - DFW

2 stops25h 56mMultiple Airlines

Wed 22/1014:56DFW - LHR

2 stops23h 24mMultiple Airlines

Deal found 10/9£496

Tue 21/1019:30LHR - DAL

2 stops34h 25mScandinavian Airlines

Mon 1/1215:45DAL - LHR

2 stops18h 15mScandinavian Airlines

Deal found 11/9£583

Wed 22/1014:05LHR - DFW

2 stops16h 52mMultiple Airlines

Sat 8/1107:19DFW - LHR

2 stops22h 01mMultiple Airlines

Deal found 12/9£481

Wed 22/1006:40LHR - DAL

2 stops23h 15mScandinavian Airlines

Sat 8/1115:45DAL - LHR

2 stops20h 45mScandinavian Airlines

Deal found 12/9£584

Sat 25/1009:30LHR - DFW

3 stops19h 23mMultiple Airlines

Sat 1/1116:05DFW - LHR

2 stops33h 25mMultiple Airlines

Deal found 10/9£506

Thu 30/1006:40LHR - DAL

2 stops22h 15mScandinavian Airlines

Mon 10/1112:33DAL - LHR

2 stops23h 07mScandinavian Airlines

Deal found 10/9£571

Fri 31/1006:40LHR - DAL

2 stops22h 15mScandinavian Airlines

Fri 7/1111:40DAL - LHR

2 stops22h 20mScandinavian Airlines

Deal found 12/9£582

One-way flights from Heathrow to Dallas
Search for one-way flight options from Heathrow to Dallas. Find affordable one-way fares based on user searches. Data last updated 12 September 2025.

Tue 14/1020:50LHR - DFW

3 stops54h 23mMultiple Airlines

Deal found 11/9£258

Wed 22/1009:55LHR - DFW

3 stops41h 18mMultiple Airlines

Deal found 11/9£260

Tue 9/1209:55LHR - DFW

2 stops34h 57mMultiple Airlines

Deal found 10/9£270

Sun 11/120:50LHR - DFW

3 stops43h 11mMultiple Airlines

Deal found 10/9£272

Thu 11/1209:55LHR - DFW

3 stops43h 49mMultiple Airlines

Deal found 10/9£272

Sat 8/1109:55LHR - DFW

3 stops34h 03mMultiple Airlines

Deal found 10/9£274

Wed 12/1118:50LHR - DFW

3 stops49h 08mMultiple Airlines

Deal found 10/9£279

Tue 16/1209:55LHR - DFW

3 stops40h 58mMultiple Airlines

Deal found 11/9£281

Mon 3/1118:50LHR - DFW

3 stops50h 44mMultiple Airlines

Deal found 12/9£284

Mon 3/1114:50LHR - DAL

2 stops28h 39mWestJet

Deal found 12/9£446

Sun 7/1214:50LHR - DAL

3 stops24h 34mWestJet

Deal found 10/9£449

Sat 6/1214:50LHR - DAL

3 stops48h 34mWestJet

Deal found 10/9£450

Cheapflights Fare Finder

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

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

...

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?

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?

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?

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

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

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.

Finnair

7.6

Good

1,323 reviews

Check prices

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.

Finnair

7.6

Good

1,323 reviews

Finnair

7.6

Good

1,323 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Virgin Atlantic

7.4

Good

664 reviews

Finnair

7.6

Good

1,323 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Iberia

7.0

Good

2,929 reviews

Finnair

7.6

Good

1,323 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Lufthansa

6.8

Okay

7,409 reviews

Finnair

7.6

Good

1,323 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

British Airways

6.7

Okay

7,361 reviews

Finnair

7.6

Good

1,323 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Related info for your journey

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

Alternative routes for Heathrow to Dallas

Heathrow to Dallas/Fort Worth flights

Heathrow to Hobby flights

Heathrow to George Bush Intcntl flights

Heathrow to Austin flights

Gatwick to Dallas/Fort Worth flights

London City to Dallas/Fort Worth flights

Heathrow to Love Field flights

London City to Hobby flights

Gatwick to Hobby flights

Gatwick to George Bush Intcntl flights

London City to George Bush Intcntl flights

Gatwick to Austin flights

London City to Austin flights

Gatwick to Love Field flights

Stansted to Dallas/Fort Worth flights

Heathrow to San Antonio flights

Gatwick to San Antonio flights

London City to Love Field flights

London City to San Antonio flights

Stansted to Austin flights

Stansted to Hobby flights

Luton to Dallas/Fort Worth flights

Heathrow to El Paso flights

Heathrow to Midland flights

Heathrow to McAllen flights

Heathrow to Amarillo flights

Heathrow to Killeen flights

Heathrow to Harlingen flights

London City to El Paso flights

Heathrow to Corpus Christi flights

Heathrow to Brownsville flights

Heathrow to Longview flights

Gatwick to El Paso flights

Southend to Dallas/Fort Worth flights

London City to Brownsville flights

Southend to Austin flights

Heathrow to Waco flights

Southend to George Bush Intcntl flights

London City to McAllen flights

Heathrow to San Angelo flights

Top 10 airlines flying from Heathrow to Dallas

Airline	Cheapest	Average	Flexibility	On-time
Lufthansa	Cheapest£427	Average£565	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Icelandair	Cheapest£440	Average£616	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Virgin Atlantic	Cheapest£446	Average£779	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
JetBlue	Cheapest£451	Average£590	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
United Airlines	Cheapest£469	Average£719	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Finnair	Cheapest£479	Average£615	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Scandinavian Airlines	Cheapest£494	Average£727	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Iberia	Cheapest£540	Average£823	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
Air France	Cheapest£550	Average£837	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Air Canada	Cheapest£564	Average£678	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights

Fly with Cheapflights

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

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.

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

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Heathrow to Dallas

Cheapest flights from Heathrow to DallasExplore 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.

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.

Cheapflights Fare Finder

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

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.

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.

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

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.

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.

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.

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

Reviews of airlines servicing Dallas

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.

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?

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

What are the most reliable airlines from London Heathrow Airport to Dallas?

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

Can I find deals for flights from Heathrow to Dallas that include hotel bookings?

How can I find direct flights from Heathrow to Dallas?

Can I find deals for business class flights from Heathrow to Dallas?

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

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.

Alternative routes for Heathrow to Dallas

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Heathrow to Dallas

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?

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Dallas?

Can Cheapflights find flights from Heathrow to Dallas with no change fees?

Can Cheapflights notify me if prices for flights from Heathrow to Dallas become cheaper?

100% Free

Book with Flexibility

Travel Smart

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.