We've gone through lots of different flights, to help you find the cheapest way to get from London Heathrow to Mcallen. You can choose from three airlines. At the moment, 06 / Mar / 2025 is the cheapest date to travel, but scroll through the results to find the option that works best for you.
There are 15 flights from London Heathrow to or via Mcallen every week. Out of the three available airlines, the most popular ones are British Airways, Lufthansa & Virgin Atlantic. But that doesn’t necessarily mean they’ll be the best option for your travel dates. To see as many flights as possible, try widening your search to include other departure airports.
The distance between London Heathrow to Mcallen is 8276 km. Normally, it takes about 15 hrs 25 mins to fly, and you can definitely expect the journey to be at least 14 hrs 15 mins. You can see the various flight times in the results.
You can also search by month, which will reveal the cheapest time of the week to fly.
