Cheap flights from London Heathrow Airport to Dallas
LHR — DFW
22 Oct — 29 Oct1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Dallas are usually found in February or January, booked 68 days in advance, depart on a Wednesday or Thursday and return on a Monday
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 22 September 2026.
Popular in
August
Cheapest in
February
Average price
£862
Highest demand for flights based on searches. 10% potential increase in price (£79 potential increase over avg. return price).
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.
LHR-A78
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
Prices
Airlines
Delays
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 67 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, February is the cheapest month in which you can book a flight from London Heathrow Airport to Dallas (average of £798). Flying from London Heathrow Airport to Dallas in August is currently the most expensive (average of £1,154). 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 22 September 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 22 September 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 often are flights from London to Dallas delayed?
About 11% of weekly flights between London and Dallas have experienced delays in the past year, with the average delay time being 164 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 9% 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 22 September 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.
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.
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.
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.
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.
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.
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.
What are the cheapest airlines flying from London Heathrow Airport to Dallas round-trip?
According to our current data, Frontier (£68), Air Canada (£393), and United Airlines (£418) offers the cheapest pricing from London Heathrow Airport to Dallas. You may be able to fly from London Heathrow Airport to Dallas for 92% 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?
£389 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 Finnair, with prices starting from £487 and £569, 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 (82%), Malaysia Airlines (80%) and American Airlines (78%).
What are the cheapest flights from London Heathrow Airport to Dallas?
While on average a flight from London Heathrow Airport to Dallas is generally £2,128, our data shows the cheapest flight currently is £568. When looking at the most popular route, (London Heathrow - Dallas/Fort Worth), you can expect to pay £384 for that flight.
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, February is the cheapest month in which you can book a flight from London Heathrow Airport to Dallas (average of £798). Flying from London Heathrow Airport to Dallas in August is currently the most expensive (average of £1,154). 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.
Browse through other flights departing from Heathrow. Flights are based on user searches made on Cheapflights and were last updated on 22 September 2026.
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 7,457,451 searches. Data last updated 22 September 2026.
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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