Cheap flights from London to Mcallen

from as little as £855

14 nights in Mcallen, departing London Heathrow on 01 / Dec / 2025 with Lufthansa (price found 12 hours ago)

Subject to availability, prices correct of the last 24 hours
Mcallen

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The London / Mcallen route

All 8307 km of it

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Mcallen flight facts

What you need to know

Alternative flights from the UK to Mcallen

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Mcallen

01 / Dec / 2025 is currently the lowest priced day of the year to fly the London/Mcallen route. There are around 35 flights on any given week from the UK to Mcallen and the cheapest month to fly right now is December.

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Min / Max Temperature (°C)
LOWEST

9 °C

AVG

23 °C

HIGHEST

36 °C

Rainfall (mm)
LOWEST

18 mm

AVG

44.4 mm

HIGHEST

100 mm

Key facts about Mcallen

How to get cheap flights from London to Mcallen

Tips and advice from our flight experts

Find a good deal on your flight from London to Mcallen with Netflights. 35 flights go via this route every week, and we've collected them all to help you find the best flight deal. If you want to keep your options open, take a look at flights from another airport in London.

The most popular airlines for this route are British Airways, Lufthansa & Virgin Atlantic, while London Heathrow (LHR) is the most popular departure airport in the city. But when you fly is just as important as where you fly from. Search by month to find out when flights are at the priciest and their cheapest.

The 8307 km journey from London to Mcallen takes at least 13 hrs 25 mins. On average, British Airways have the cheapest flights, but check your search results, as this isn’t always the case. Another way to get a cheap flight is to book last minute – but this does mean you may not be able to get the exact flights you want.

Did you know you can also compare car hire and hotel prices in the USA with Netflights? Take a look to get an idea of prices in Mcallen.

Other popular destinations near Mcallen

Where other people are flying to

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