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937 € Cheap Flights from London Heathrow to Mcallen

Compare London Heathrow to Mcallen flight deals

Find the cheapest month or even day of the year to fly to Mcallen

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Flight deals from London Heathrow Airport to Mcallen Airport

Looking for a cheap last-minute deal or the best return flight from London Heathrow Airport to Mcallen Airport? If you want to travel next month, return fares start from 946 €. Find the lowest prices on one-way and return tickets right here.
Mcallen.937 € per passenger.Departing Fri, 19 Jun, returning Fri, 10 Jul.Return flight with Vueling Airlines and Allegiant Air.Outbound indirect flight with Vueling Airlines, departs from London Heathrow on Fri, 19 Jun, arriving in Mcallen.Inbound indirect flight with Allegiant Air, departs from Mcallen on Fri, 10 Jul, arriving in London Heathrow.Price includes taxes and charges.From 937 €, select.
Mcallen.945 € per passenger.Departing Wed, 28 Oct, returning Wed, 11 Nov.Return flight with British Airways.Outbound indirect flight with British Airways, departs from London Heathrow on Wed, 28 Oct, arriving in Mcallen.Inbound indirect flight with British Airways, departs from Mcallen on Wed, 11 Nov, arriving in London Heathrow.Price includes taxes and charges.From 945 €, select.
Mcallen.945 € per passenger.Departing Wed, 13 May, returning Mon, 18 May.Return flight with British Airways.Outbound indirect flight with British Airways, departs from London Heathrow on Wed, 13 May, arriving in Mcallen.Inbound indirect flight with British Airways, departs from Mcallen on Mon, 18 May, arriving in London Heathrow.Price includes taxes and charges.From 945 €, select.
Mcallen.945 € per passenger.Departing Tue, 5 Jan, returning Tue, 19 Jan.Return flight with British Airways.Outbound indirect flight with British Airways, departs from London Heathrow on Tue, 5 Jan, arriving in Mcallen.Inbound indirect flight with British Airways, departs from Mcallen on Tue, 19 Jan, arriving in London Heathrow.Price includes taxes and charges.From 945 €, select.
Mcallen.946 € per passenger.Departing Wed, 15 Apr, returning Thu, 30 Apr.Return flight with British Airways.Outbound indirect flight with British Airways, departs from London Heathrow on Wed, 15 Apr, arriving in Mcallen.Inbound indirect flight with British Airways, departs from Mcallen on Thu, 30 Apr, arriving in London Heathrow.Price includes taxes and charges.From 946 €, select.
Mcallen.972 € per passenger.Departing Thu, 19 Mar, returning Mon, 23 Mar.Return flight with United.Outbound indirect flight with United, departs from London Heathrow on Thu, 19 Mar, arriving in Mcallen.Inbound indirect flight with United, departs from Mcallen on Mon, 23 Mar, arriving in London Heathrow.Price includes taxes and charges.From 972 €, select.

Find the cheapest month to fly from London Heathrow to Mcallen

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London Heathrow to Mcallen flights are currently cheapest in May.
Mar
from 972 €
Apr
from 946 €
May
from 945 €
Jun
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Jul
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Aug
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Sep
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Oct
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Nov
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Dec
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Jan
from 945 €
Feb
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London Heathrow to Mcallen: Alternative routes

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

Mcallen

3km from central Mcallen
Closest
from 937 €
Search flights

Harlingen

58km from central Mcallen
from 967 €
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Brownsville

87km from central Mcallen
Cheapest
from 922 €
Search flights

London to Mcallen: Flight information

The things to know before you go.
Cheapest flight found937 €
Cheapest month to flyJune

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

The best price we found for a return flight from London Heathrow to Mcallen is 937 €. 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.
Currently, there are no airlines that fly direct from London Heathrow to Mcallen. But we found flights with one or more stops from 937 €.
As of March 2026, there are no flights flying from London Heathrow to Mcallen.
The cheapest month to fly from London Heathrow to Mcallen is usually June.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Heathrow Airport to Mcallen Airport on Friday, 19 June 2026.
No airlines currently offer direct flights between London Heathrow Airport and Mcallen Airport. Most routes have one or more stops.
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 Mcallen 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 Mcallen is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Vueling Airlines offers the cheapest flight tickets to Mcallen.

Travelling from London Heathrow Airport (LHR) to McAllen International Airport (MFE): what you need to know

  • Mcallen is five hours behind London and is in the UTC-5 timezone.

  • Get to the airport on time so you don't miss your LHR to MFE flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid any last-minute rush.

  • During popular months such as July, it's a good idea to get to the airport even earlier. Plan to arrive two hours before a domestic departure and four hours ahead of an international flight whenever you're flying during a peak period in general.

  • If you'd like to split up your journey, just deselect 'Direct flights only' when searching for your ticket from London Heathrow Airport to McAllen International Airport. These are the most popular stopovers between LHR and MFE:

    • George Bush Intercontinental Airport

    • Dallas/Fort Worth International Airport

    • Austin-Bergstrom International Airport

How to find the cheapest flights from London Heathrow Airport (LHR) to McAllen International Airport (MFE)

  • Currently, 528 € is the cheapest price we've seen for a one-way London Heathrow Airport to McAllen International Airport flight. The best price for a return ticket is 937 €. Keep in mind that fares can change due to availability when booking.

  • It's a good idea to book ahead of time if you want to find cheap tickets from LHR to MFE. That's because flight prices are based on demand, which tends to rise closer to the date of departure.

  • If you can be flexible with your trip dates, use the 'Whole month' tool. It'll give you the lowest price across every month when searching for your flight from London Heathrow Airport to McAllen International Airport.

  • There's no need to check every day to find out if fares have gone down when you create a Price Alert. We'll let you know the moment there's a new deal on cheap flights from LHR to MFE.

  • Pick your preferred departure and arrival times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to see the best deals on flights from London Heathrow Airport to McAllen International Airport.

Handy information about London Heathrow Airport (LHR)

  • When it comes to the on-time performance of London Heathrow Airport, 68.18% of flights arrive within the expected timeframe.

  • London Heathrow Airport is around 31 kilometres from central London. If you're catching a cab, ride-sharing or driving from the centre, it'll take 55 minutes or so to arrive, depending on the traffic.

  • Catching public transport? Expect a trip time of around 1 hour.

  • Get your journey off to a leisurely start by staying near LHR. Whether you're catching an early flight from London Heathrow Airport to McAllen International Airport or just don't like being rushed, these stays are ideal:

Arriving at McAllen International Airport (MFE)

Getting from McAllen International Airport (MFE) to central Mcallen

  • MFE is located at 2500 S Bicentenial Blvd.

  • McAllen International Airport is roughly 3 kilometres from central Mcallen. Driving there takes about 10 minutes.

  • Travelling to the centre on public transport takes roughly 50 minutes.

When to fly to McAllen International Airport (MFE)

  • The quietest month for a flight from London Heathrow Airport to McAllen International Airport is February, while July is the busiest. Choose the best time to go to Mcallen based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • The warmest month in Mcallen is August, with temperatures ranging between 25ºC (77ºF) and 39ºC (102ºF). Lock in your flights from London Heathrow Airport to McAllen International Airport in this month if this is the type of weather you like.

  • January sees average temperatures of between 8ºC (46ºF) and 26ºC (79ºF). Search for cheap tickets from LHR to MFE sometime around then if you want to travel when it's cooler.

Explore more of United States

  • Houston is just one of the many places in United States waiting to be discovered after you've seen Mcallen. Around 483 kilometres away to the north-east, its best attractions include The Houston Museum of Natural Science, The Museum of Fine Arts, Houston, Beck Building and Hermann Park.

  • If you want to check out another major stop in United States, head for San Antonio, roughly 354 kilometres north of Mcallen. The San Antonio River Walk, San Antonio Missions National Historical Park and San Fernando Cathedral are among its highlights.

Plan the rest of your trip from London to Mcallen

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