Cheap Flights from Mcallen to London Heathrow

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Travellers and cabin class, 1 Adult, Economy

Compare Mcallen 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 Mcallen to London Heathrow

Looking for a cheap last-minute deal or the best return flight from Mcallen Airport to London Heathrow Airport? If you want to travel next month, return fares start from $1,673. Find the lowest prices on one-way and return tickets right here.

London.$1,484 per passenger.Departing Tue, 13 Oct, returning Tue, 20 Oct.Return flight with United.Outbound indirect flight with United, departs from Mcallen on Tue, 13 Oct, arriving in London Heathrow.Inbound indirect flight with United, departs from London Heathrow on Tue, 20 Oct, arriving in Mcallen.Price includes taxes and charges.From $1,484, select.

London.$1,508 per passenger.Departing Wed, 17 Mar, returning Fri, 9 Apr.Return flight with United.Outbound indirect flight with United, departs from Mcallen on Wed, 17 Mar, arriving in London Heathrow.Inbound indirect flight with United, departs from London Heathrow on Fri, 9 Apr, arriving in Mcallen.Price includes taxes and charges.From $1,508, select.

London.$1,520 per passenger.Departing Tue, 24 Nov, returning Thu, 3 Dec.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Mcallen on Tue, 24 Nov, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Thu, 3 Dec, arriving in Mcallen.Price includes taxes and charges.From $1,520, select.

London.$1,540 per passenger.Departing Tue, 24 Nov, returning Thu, 26 Nov.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Mcallen on Tue, 24 Nov, arriving in London Heathrow.Inbound indirect flight with British Airways, departs from London Heathrow on Thu, 26 Nov, arriving in Mcallen.Price includes taxes and charges.From $1,540, select.

London.$1,540 per passenger.Departing Tue, 1 Dec, returning Fri, 4 Dec.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Mcallen on Tue, 1 Dec, arriving in London Heathrow.Inbound indirect flight with British Airways, departs from London Heathrow on Fri, 4 Dec, arriving in Mcallen.Price includes taxes and charges.From $1,540, select.

London.$1,555 per passenger.Departing Wed, 10 Feb, returning Fri, 19 Feb.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Mcallen on Wed, 10 Feb, arriving in London Heathrow.Inbound indirect flight with British Airways, departs from London Heathrow on Fri, 19 Feb, arriving in Mcallen.Price includes taxes and charges.From $1,555, select.

London.$1,570 per passenger.Departing Sat, 17 Apr, returning Thu, 22 Apr.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Mcallen on Sat, 17 Apr, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Thu, 22 Apr, arriving in Mcallen.Price includes taxes and charges.From $1,570, select.

London.$1,593 per passenger.Departing Fri, 25 Sep, returning Wed, 14 Oct.Return flight with United.Outbound indirect flight with United, departs from Mcallen on Fri, 25 Sep, arriving in London Heathrow.Inbound indirect flight with United, departs from London Heathrow on Wed, 14 Oct, arriving in Mcallen.Price includes taxes and charges.From $1,593, select.

London.$1,617 per passenger.Departing Wed, 6 Jan, returning Thu, 14 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Mcallen on Wed, 6 Jan, arriving in London Heathrow.Inbound indirect flight with Delta, departs from London Heathrow on Thu, 14 Jan, arriving in Mcallen.Price includes taxes and charges.From $1,617, select.

London.$1,651 per passenger.Departing Fri, 25 Sep, returning Tue, 29 Sep.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Mcallen on Fri, 25 Sep, arriving in London Heathrow.Inbound indirect flight with British Airways, departs from London Heathrow on Tue, 29 Sep, arriving in Mcallen.Price includes taxes and charges.From $1,651, select.

London.$1,670 per passenger.Departing Sat, 15 Aug, returning Fri, 28 Aug.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Mcallen on Sat, 15 Aug, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Fri, 28 Aug, arriving in Mcallen.Price includes taxes and charges.From $1,670, select.

London.$1,683 per passenger.Departing Thu, 27 Aug, returning Thu, 3 Sep.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Mcallen on Thu, 27 Aug, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Thu, 3 Sep, arriving in Mcallen.Price includes taxes and charges.From $1,683, select.

London.$1,703 per passenger.Departing Thu, 29 Oct, returning Sun, 1 Nov.Return flight with Iberia.Outbound indirect flight with Iberia, departs from Mcallen on Thu, 29 Oct, arriving in London Heathrow.Inbound indirect flight with Iberia, departs from London Heathrow on Sun, 1 Nov, arriving in Mcallen.Price includes taxes and charges.From $1,703, select.

London.$2,097 per passenger.Departing Sat, 26 Dec, returning Wed, 6 Jan.Return flight with United.Outbound indirect flight with United, departs from Mcallen on Sat, 26 Dec, arriving in London Heathrow.Inbound indirect flight with United, departs from London Heathrow on Wed, 6 Jan, arriving in Mcallen.Price includes taxes and charges.From $2,097, select.

London.$2,148 per passenger.Departing Sat, 13 Mar, returning Sat, 20 Mar.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Mcallen on Sat, 13 Mar, arriving in London Heathrow.Inbound indirect flight with British Airways, departs from London Heathrow on Sat, 20 Mar, arriving in Mcallen.Price includes taxes and charges.From $2,148, select.

London.$2,359 per passenger.Departing Tue, 28 Jul, returning Sat, 8 Aug.Return flight with United.Outbound indirect flight with United, departs from Mcallen on Tue, 28 Jul, arriving in London Heathrow.Inbound indirect flight with United, departs from London Heathrow on Sat, 8 Aug, arriving in Mcallen.Price includes taxes and charges.From $2,359, select.

Find the cheapest month to fly from Mcallen to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Mcallen to London Heathrow flights are currently cheapest in October.

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Mcallen to London Heathrow: Alternative routes

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

Mcallen to London: Flight information

The things to know before you go.

Cheapest flight found	$1,487
Cheapest month to fly	October

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

How much are return flights from Mcallen to London Heathrow?

The best price we found for a return flight from Mcallen to London Heathrow is $1,487. 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.

Which airlines fly direct from Mcallen to London Heathrow?

Currently, there are no airlines that fly direct from Mcallen to London Heathrow. But we found flights with one or more stops from $1,487.

How many flights are there a week from Mcallen to London Heathrow?

As of July 2026, there are no flights flying from Mcallen to London Heathrow.

When is the cheapest time to fly from Mcallen to London Heathrow?

The cheapest month to fly from Mcallen to London Heathrow is usually October.

Which upcoming date is cheapest to fly from Mcallen Airport to London Heathrow Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Mcallen Airport to London Heathrow Airport on Tuesday, 13 October 2026.

Can I get a direct flight from Mcallen Airport to London Heathrow Airport?

No airlines currently offer direct flights between Mcallen Airport and London Heathrow Airport. Most routes have one or more stops.

How can I find the best flight deal to London Heathrow?

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.

When is the best time to book flights to London?

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.

Which is the cheapest airline to fly from Mcallen Airport to London Heathrow with?

Currently, United offers the cheapest flight tickets to London Heathrow.

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

London's timezone is UTC+0, making London six hours ahead of Mcallen.
For a stress-free journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This way, you can comfortably board your MFE to LHR flight.
During popular months such as July, it's best to get to the airport well in advance. Plan to arrive two hours before a domestic departure and four hours ahead of international flights when you travel during a high season in general.
We make it a piece of cake to book a flight with a stopover. To see all your options for tickets from Mcallen Airport to London Heathrow Airport, uncheck 'Direct flights only.' Then, choose a flight that has a stop long enough to visit the city of your choice. Popular stopovers between MFE and LHR include:
- Dallas Fort Worth International Airport
- Houston George Bush Intercntl. Airport
- Austin-Bergstrom Airport

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

$562 is currently the best price for a one-way Mcallen Airport to London Heathrow Airport flight. A return flight starts from $1,487. These fares can change depending on availability.
Don't wait until the last minute. You're more likely to get cheap tickets from MFE to LHR if you book early. Airlines often offer some great early bird discounts.
Getting cheap flights from Mcallen Airport to London Heathrow Airport is easy if you can be flexible with your travel dates. Use the 'Whole month' tool to see the lowest prices across every month and snap up a great deal.
Spend less time searching for cheap flights from MFE to LHR by creating a Price Alert. We'll send you an email or notification through the app when a lower fare pops up.
Choose your preferred arrival and departure times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to find the best deals on flights from Mcallen Airport to London Heathrow Airport.

Handy information about Mcallen Airport (MFE)

You'll find MFE at 2500 S Bicentenial Blvd.
Mcallen Airport maintains a strong on-time performance, reducing the likelihood of delays. Departures from MFE touch down on schedule 82% of the time.
Mcallen Airport is around 8 kilometres from central Mcallen. If you're catching a taxi, ride-sharing or driving from the centre, it'll take 10 minutes or so to arrive, depending on the traffic.
The journey when using public transport will take about 25 minutes.
Get your travels off to a stress-free start by staying near MFE. Whether you're boarding an early flight from Mcallen Airport to London Heathrow Airport or just don't want to be rushed, these stays are the answer:

Arriving at London Heathrow Airport (LHR)

Consider booking a hotel close to LHR if you're catching a late Mcallen Airport to London Heathrow Airport flight. Select one of these accommodation options and avoid the hassle of a long transfer:
Say yes to new adventures by picking up a London Heathrow Airport rental car. Grab a set of wheels from Surprice, U-Save or Green Motion to explore London and beyond.
To get the best deal, reserve your vehicle from London Heathrow Airport around one week ahead.

When to fly to London Heathrow Airport (LHR)

July is the busiest month for flights from Mcallen Airport to London Heathrow Airport. To escape the crowds, travel to London in March.
Book your flight from Mcallen Airport to London Heathrow Airport for July if you want to visit London during its warmest month. You can expect temperatures of between 11ºC and 26ºC.
If you want cooler conditions, search for a cheap ticket from MFE to LHR in January. Average temperatures are between 0ºC and 9ºC then.

Explore more of the United Kingdom

London is easy to fall in love with, but there are so many other parts of the United Kingdom just waiting to be explored. About 257 kilometres north-west of London, a visit to Manchester will keep you busy. Start with attractions like Manchester United Museum & Stadium Tour, The Homes of Football and Museum of Science and Industry.
Birmingham is another favourite destination in the United Kingdom and is around 161 kilometres north-west of London. No journey is complete without visiting Birmingham Museum & Art Gallery, Birmingham Hippodrome Theatre and Bournville Experience.