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Cheap Flights from Dallas (DFWA) to London (LHR)

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      Travellers and cabin class, 1 Adult, Economy

      Compare Dallas to London Heathrow flight deals

      Find the cheapest month or even day of the year to fly to London Heathrow

      Book the best London Heathrow fare with no extra fees

      Flight deals from Dallas to London Heathrow

      Looking for a cheap last-minute deal or the best return flight from Dallas to London Heathrow? Find the lowest prices on one-way and return tickets right here.
      London.$946 per passenger.Departing Sun, 10 Aug, returning Mon, 25 Aug.Return flight with Air Canada and SWISS.Outbound indirect flight with Air Canada, departs from Dallas Fort Worth International on Sun, 10 Aug, arriving in London Heathrow.Inbound indirect flight with SWISS, departs from London Heathrow on Mon, 25 Aug, arriving in Dallas Fort Worth International.Price includes taxes and charges.From $946, select.
      London.$957 per passenger.Departing Tue, 2 Sep, returning Tue, 16 Sep.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Dallas Fort Worth International on Tue, 2 Sep, arriving in London Heathrow.Inbound indirect flight with Air Canada, departs from London Heathrow on Tue, 16 Sep, arriving in Dallas Fort Worth International.Price includes taxes and charges.From $957, select.
      London.$963 per passenger.Departing Tue, 7 Oct, returning Tue, 25 Nov.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Dallas Fort Worth International on Tue, 7 Oct, arriving in London Heathrow.Inbound indirect flight with Air Canada, departs from London Heathrow on Tue, 25 Nov, arriving in Dallas Fort Worth International.Price includes taxes and charges.From $963, select.
      London.$963 per passenger.Departing Wed, 3 Dec, returning Wed, 10 Dec.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Dallas Fort Worth International on Wed, 3 Dec, arriving in London Heathrow.Inbound indirect flight with Air Canada, departs from London Heathrow on Wed, 10 Dec, arriving in Dallas Fort Worth International.Price includes taxes and charges.From $963, select.
      London.$967 per passenger.Departing Wed, 22 Oct, returning Tue, 28 Oct.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Dallas Fort Worth International on Wed, 22 Oct, arriving in London Heathrow.Inbound indirect flight with Air Canada, departs from London Heathrow on Tue, 28 Oct, arriving in Dallas Fort Worth International.Price includes taxes and charges.From $967, select.
      London.$970 per passenger.Departing Tue, 25 Nov, returning Tue, 16 Dec.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Dallas Fort Worth International on Tue, 25 Nov, arriving in London Heathrow.Inbound indirect flight with Air Canada, departs from London Heathrow on Tue, 16 Dec, arriving in Dallas Fort Worth International.Price includes taxes and charges.From $970, select.
      London.$986 per passenger.Departing Tue, 22 Jul, returning Tue, 19 Aug.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Dallas Fort Worth International on Tue, 22 Jul, arriving in London Heathrow.Inbound indirect flight with Air Canada, departs from London Heathrow on Tue, 19 Aug, arriving in Dallas Fort Worth International.Price includes taxes and charges.From $986, select.
      London.$1,012 per passenger.Departing Mon, 8 Dec, returning Tue, 6 Jan.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Dallas Fort Worth International on Mon, 8 Dec, arriving in London Heathrow.Inbound indirect flight with Air Canada, departs from London Heathrow on Tue, 6 Jan, arriving in Dallas Fort Worth International.Price includes taxes and charges.From $1,012, select.

      Find the cheapest month to fly from Dallas to London Heathrow

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Dallas to London Heathrow flights are currently cheapest in August.
      May
      from $3,483
      Jun
      from $1,253
      Jul
      from $1,231
      Aug
      from $946
      Sep
      from $957
      Oct
      from $967
      Nov
      from $1,084
      Dec
      from $963
      Jan
      from $1,058
      Feb
      from $1,086
      Mar
      from $1,247
      Apr
      from $1,272

      Direct flights from Dallas to London Heathrow

      Dallas to London Heathrow: Alternative routes

      Compare routes from Dallas to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

      Dallas to London: Flight information

      The things to know before you go.
      Cheapest flight found$946
      Cheapest month to flyAugust
      Average flight time9 hrs, 10 mins
      Most popular airlineFinnair
      Average flights per week422

      Finding cheap flights from Dallas to London Heathrow: Frequently asked questions

      The best price we found for a return flight from Dallas to London Heathrow is $946. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      9 hours and 10 minutes is the average flight time from Dallas to London Heathrow.
      Finnair, Gulf Air and American Airlines fly direct from Dallas to London Heathrow.
      As of May 2025, there are 205 flights per week flying from Dallas to London Heathrow.
      The cheapest month to fly from Dallas to London Heathrow is usually May 2025.
      After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Dallas to London Heathrow Airport on Sunday, 10 August 2025.
      Yes – the average flight time is 9 hours and 10 minutes.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.

      Flying from Dallas to London Heathrow Airport (LHR): what you need to know

      • Dallas/Fort Worth International Airport (DFW) is Dallas's main airport. Check out your options for booking a flight from Dallas to London Heathrow Airport (LHR) jetting off from here.

      • 9 hours 7 minutes is the average journey time for a direct flight from Dallas to London Heathrow Airport.

      • London Heathrow Airport is located in London. The city operates in the UTC+0 timezone and is 5 hours ahead of Dallas.

      • Dallas/Fort Worth International Airport (DFW) to London Heathrow Airport (LHR) is the most popular route. There are 47 direct weekly departures to choose from. If you have things to do before heading off, take the last flight with American Airlines at 22:59. Opt for the first DFW to LHR departure operated by American Airlines at 15:05 if you want to get going earlier.

      • Arrive at the airport on time so you don't miss your flight from Dallas to LHR. Be there at least two hours ahead for international flights and an hour early for domestic departures to skip the mad dash to your gate.

      • If you're getting away during a peak month like July, head to the airport even earlier. It's smart to arrive up to four hours before an international flight and two hours ahead of domestic departures. You can expect lines to be longer during peak periods like summer and spring break.

      Airports in Dallas

      Dallas/Fort Worth International Airport (DFW)

      • Dallas/Fort Worth International Airport (DFW) will have you travelling directly to your destination. Nonstop flights from Dallas to London Heathrow Airport (LHR) take off from this terminal.

      • You can travel on a direct flight from Dallas to London Heathrow Airport with British Airways. This top carrier offers services from DFW.

      • Stopovers are the perfect opportunity to take a break from travelling — and maybe even explore another city. When searching for flights from Dallas to LHR leaving from Dallas/Fort Worth International Airport (DFW), uncheck the 'Direct flights only' box to see where you can stop along the way. Top options include:

        • Washington Dulles International Airport (IAD)

        • Hartsfield-Jackson Atlanta International Airport (ATL)

        • O'Hare International Airport (ORD)

      • Located around 32 kilometres from central Dallas, DFW can be reached in about 26 minutes by car, depending on traffic. The journey on public transport will take roughly 3 hours and 55 minutes.

      • After a stress-free start to your break? Stay near Dallas/Fort Worth International Airport. Whether you're boarding an early flight from Dallas to London Heathrow Airport or just don't want to be rushed, these hotels are the answer:

      About London Heathrow Airport (LHR)

      Getting from London Heathrow Airport (LHR) to central London

      • London Heathrow Airport to the centre of London takes about 57 minutes by car. It's approximately 31 kilometres away. Discover what options are available, such as cabs, car rentals or ride-sharing services.

      • When travelling on public transport, expect a journey of around 1 hour and 1 minute.

      How to find the cheapest flights from Dallas to London Heathrow Airport (LHR)

      • $379 is the cheapest price we've seen for a one-way ticket from Dallas to London Heathrow Airport. Return flights start from $946. Prices are subject to change based on availability and may vary at the time of booking.

      • To score flight tickets from Dallas to LHR, book as early as possible. Airlines generally offer lower prices when flights are first made available.

      • Finding flight tickets from Dallas to London Heathrow Airport is easy if you can be flexible with your travel dates. Check out the 'Whole month' search function to see the lowest fares across each month and bag a great deal.

      • Set up a Price Alert and keep an eye on changes on this route through email or push notifications. We'll let you know when the fares drop. It's all about timing when scoring flight tickets from Dallas to LHR.

      • Personalise your trip with filters. Choose the number of stops, total duration, and arrival and departure times to find the ideal flight from Dallas to London Heathrow Airport. You can also sort the results to see the 'Fastest,' 'Best' or 'Cheapest' options first.

      The best time to fly from Dallas to London Heathrow Airport (LHR)

      • July is the busiest month to catch a flight from Dallas to London Heathrow Airport while February is the quietest. To work out the best time to go to London, consider whether you like a lively atmosphere or a quieter vibe.

      • Before booking a flight from Dallas to LHR, think about the type of weather you enjoy. July is the warmest month in London, with temperatures ranging from 11ºC to 26ºC.

      • January sees average temperatures of between 0ºC and 9ºC. Search for cheap flights from Dallas to London Heathrow Airport around that time if you want to travel in cooler conditions.

      More about London

      Complete your London trip with a car rental

      • We use the same magic that helped you find your cheap flight from Dallas to London Heathrow Airport to track down your perfect ride. Check out our car rentals in London and compare offers in one place. Plus we give you all the info you need to know, from the most popular rental company to the best time to book.

      Plan the rest of your trip from Dallas to London

      Prices shown on this page are estimated lowest prices only. Found in the last 45 days.