What is the cheapest airline that flies from McAllen Miller Intl to London Heathrow?

British Airways, United Airlines, and Air Canada are the most popular carriers operating from McAllen Miller Intl to London Heathrow

What airlines fly to London Heathrow Airport?

United Airlines, British Airways and American Airlines are the top three most popular airlines that fly to London Heathrow Airport from McAllen according to our data. United Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 3 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from McAllen Miller Intl Airport to London Heathrow Airport?

Prices for flights from McAllen Miller Intl Airport to London Heathrow Airport refresh daily.

How many operators does momondo search for flights from McAllen Miller Intl Airport to London Heathrow Airport?

As of April 2026, there are 3 operators available to choose from for flights from McAllen Miller Intl Airport to London Heathrow Airport.

How old do you have to be to fly from McAllen Miller Intl Airport to London Heathrow Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from McAllen Miller Intl Airport to London Heathrow Airport.

What documentation or ID do you need to fly to London Heathrow Airport?

The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$535 Cheap Flights from McAllen to London Heathrow Airport in 2026

Q: What is the typical price of a round-trip flight between McAllen and London Heathrow Airport?

Prices are currently high for flights on this route. Typical prices usually range from $771 to $717. The lowest price recently found on this route was $885.

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Find the cheapest flights from McAllen to London

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:00 am - 7:40 am

MFE

LHR

20h 40m

1 stop

5:40 pm - 7:15 pm

LHR

MFE

31h 35m

2 stops

$885United Airlines

Wed, Sep 16 - Wed, Sep 30

7:00 am - 7:15 am

MFE

LHR

18h 15m

2 stops

5:40 pm - 7:15 pm

LHR

MFE

31h 35m

2 stops

$890United Airlines

Wed, Sep 16 - Wed, Sep 30

4:19 pm - 12:50 pm

MFE

LHR

14h 31m

1 stop

2:25 pm - 9:47 pm

LHR

MFE

13h 22m

1 stop

$895British Airways

Wed, Sep 16 - Wed, Sep 30

1:51 pm - 12:50 pm

MFE

LHR

16h 59m

1 stop

7:25 pm - 12:16 am

LHR

MFE

34h 51m

2 stops

$904British Airways

Mon, Sep 14 - Mon, Sep 21

5:15 pm - 7:40 am

MFE

LHR

32h 25m

1 stop

1:40 pm - 1:21 pm

LHR

MFE

29h 41m

1 stop

$940United Airlines

Sat, Sep 12 - Mon, Sep 21

12:10 pm - 7:55 am

MFE

LHR

13h 45m

1 stop

7:30 am - 10:59 pm

LHR

MFE

21h 29m

2 stops

$943United Airlines

Tue, May 12 - Tue, May 19

11:04 am - 9:05 am

MFE

LHR

16h 01m

1 stop

2:25 pm - 9:47 pm

LHR

MFE

13h 22m

1 stop

$945British Airways

Mon, Sep 14 - Mon, Sep 21

7:00 am - 6:30 am

MFE

LHR

17h 30m

2 stops

9:30 am - 9:48 pm

LHR

MFE

18h 18m

2 stops

$946United Airlines

Tue, May 12 - Tue, May 19

12:48 pm - 1:15 pm

MFE

LHR

18h 27m

2 stops

9:40 am - 11:59 pm

LHR

MFE

20h 19m

2 stops

$955KLM

Mon, Sep 14 - Mon, Sep 21

9:25 am - 7:55 am

MFE

LHR

16h 30m

1 stop

1:40 pm - 10:59 pm

LHR

MFE

15h 19m

1 stop

$960United Airlines

Tue, May 12 - Tue, May 19

Iberia flights from McAllen to London Heathrow Airport

Our best Iberia deals on McAllen to London Heathrow Airport flight tickets

Iberia

Apr 21

MFE10:32 amMcAllen Miller Intl

15h 33m

1 stop

LHR8:05 amLondon Heathrow

Apr 28

LHR6:15 amLondon Heathrow

20h 13m

2 stops

MFE8:28 pmMcAllen Miller Intl

$1,020

Iberia

Apr 21

MFE10:32 amMcAllen Miller Intl

15h 33m

1 stop

LHR8:05 amLondon Heathrow

Apr 28

LHR6:15 amLondon Heathrow

20h 13m

2 stops

MFE8:28 pmMcAllen Miller Intl

$1,021

Iberia

Apr 20

MFE1:10 pmMcAllen Miller Intl

12h 55m

1 stop

LHR8:05 amLondon Heathrow

May 5

LHR8:00 pmLondon Heathrow

33h 59m

2 stops

MFE11:59 pmMcAllen Miller Intl

$1,031

Air Canada flights from McAllen to London Heathrow Airport

Our best Air Canada deals on McAllen to London Heathrow Airport flight tickets

Air Canada

Sep 11

MFE5:00 amMcAllen Miller Intl

22h 35m

2 stops

LHR9:35 amLondon Heathrow

Sep 26

LHR5:40 pmLondon Heathrow

30h 05m

2 stops

MFE5:45 pmMcAllen Miller Intl

$993

Air Canada

May 10

MFE7:00 amMcAllen Miller Intl

21h 00m

2 stops

LHR10:00 amLondon Heathrow

Jun 11

LHR2:10 pmLondon Heathrow

24h 46m

2 stops

MFE8:56 amMcAllen Miller Intl

$1,004

Air Canada

Apr 20

MFE7:00 amMcAllen Miller Intl

21h 00m

2 stops

LHR10:00 amLondon Heathrow

May 5

LHR2:05 pmLondon Heathrow

38h 54m

2 stops

MFE10:59 pmMcAllen Miller Intl

$1,036

momondo Fare Finder

Use the filters below to find and compare flights from McAllen to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Wed 9/16

5:00 am-7:40 am

1 stop20h 40m

London Heathrow

Wed 9/30

5:40 pm-7:15 pm

2 stops31h 35m

$885

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Wed 9/16

7:00 am-7:15 am

2 stops18h 15m

London Heathrow

Wed 9/30

5:40 pm-7:15 pm

2 stops31h 35m

$890

Quickest round-trip

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Wed 9/16

4:19 pm-12:50 pm

1 stop14h 31m

London Heathrow

Wed 9/30

2:25 pm-9:47 pm

1 stop13h 22m

$895

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Mon 9/14

1:51 pm-12:50 pm

1 stop16h 59m

London Heathrow

Mon 9/21

7:25 pm-12:16 am

2 stops34h 51m

$904

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Sat 9/12

5:15 pm-7:40 am

1 stop32h 25m

London Heathrow

Mon 9/21

1:40 pm-1:21 pm

1 stop29h 41m

$940

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Tue 5/12

12:10 pm-7:55 am

1 stop13h 45m

London Heathrow

Tue 5/19

7:30 am-10:59 pm

2 stops21h 29m

$943

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Mon 9/14

11:04 am-9:05 am

1 stop16h 01m

London Heathrow

Mon 9/21

2:25 pm-9:47 pm

1 stop13h 22m

$945

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Tue 5/12

7:00 am-6:30 am

2 stops17h 30m

London Heathrow

Tue 5/19

9:30 am-9:48 pm

2 stops18h 18m

$946

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Mon 9/14

12:48 pm-1:15 pm

2 stops18h 27m

London Heathrow

Mon 9/21

9:40 am-11:59 pm

2 stops20h 19m

$955

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Tue 5/12

9:25 am-7:55 am

1 stop16h 30m

London Heathrow

Tue 5/19

1:40 pm-10:59 pm

1 stop15h 19m

$960

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from McAllen to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the typical price of a round-trip flight between McAllen and London Heathrow Airport?

Can stopping save me money on McAllen to London Heathrow Airport flights?

You could potentially save up to 17% on your flight if you consider stops on a McAllen to London Heathrow Airport flight.

When to book flights from McAllen to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from McAllen to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap McAllen to London Heathrow Airport (MFE to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from McAllen to London Heathrow Airport

Fastest flight time	12h 21m
Direct flights	None

The fastest flight from McAllen to London Heathrow Airport takes 12h 21m

There are no direct flights from McAllen to London Heathrow Airport. There are no popular flight routes from McAllen to London Heathrow Airport.

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Frequently asked questions about flying from McAllen to London Heathrow Airport

How far is McAllen Miller Intl to London Heathrow by plane?
A flight from McAllen Miller Intl to London Heathrow will travel around 5133.2 mi. 12h 21m is a normal flight duration for this route.
When did momondo last update prices for flights from McAllen Miller Intl Airport to London Heathrow Airport?
Prices for flights from McAllen Miller Intl Airport to London Heathrow Airport refresh daily.
How many operators does momondo search for flights from McAllen Miller Intl Airport to London Heathrow Airport?
As of April 2026, there are 3 operators available to choose from for flights from McAllen Miller Intl Airport to London Heathrow Airport.
How old do you have to be to fly from McAllen Miller Intl Airport to London Heathrow Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from McAllen Miller Intl Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from McAllen to London Heathrow Airport?
momondo data reveals that the most frequently booked airline on the route from McAllen to London Heathrow Airport is United Airlines, representing 45% of all bookings. The subsequent popular airlines are British Airways at 31% and American Airlines at 24%.

Best airlines flying from McAllen to London Heathrow Airport

Compare and see reviews for airlines that fly from McAllen to London Heathrow Airport with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $628	Free Cancellation	Rating 6.7 7,841 reviews	Search British Airways flights
American Airlines	PriceFrom $682	Free Cancellation	Rating 7.1 11,545 reviews	Search American Airlines flights
United Airlines	PriceFrom $698	Free Cancellation	Rating 7.4 9,531 reviews	Search United Airlines flights

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Slough

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Wembley

Stansted

Croydon

Dartford

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Guildford

Cobham

Folkestone

Romford

Harrow

Watford

Why use momondo?

Why should I use momondo to find a flight deal from McAllen to London?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from McAllen to London. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from McAllen to London with flexible booking policies on momondo?

momondo does allow users to show only those flights to London from McAllen which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from McAllen to London?

momondo helps you find the best flight between McAllen and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from McAllen to London right now. Can momondo alert me if prices change?

Price alerts on flights to London from McAllen are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Flights to London Gatwick Airportfrom $475

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Cheap flights from McAllen to London from $535

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from McAllen to London departing on 6/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Air Canada flights from McAllen to London Heathrow Airport

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momondo Fare Finder

Use the filters below to find and compare flights from McAllen to London Heathrow Airport that are best for you.

See travel insights to London from

How to get the cheapest flight ticket from McAllen to London Heathrow Airport

What is the typical price of a round-trip flight between McAllen and London Heathrow Airport?

Can stopping save me money on McAllen to London Heathrow Airport flights?

What is the cheapest airline that flies from McAllen Miller Intl to London Heathrow?

What airlines fly to London Heathrow Airport?

When to book flights from McAllen to London Heathrow Airport

Cheap McAllen to London Heathrow Airport (MFE to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from McAllen to London Heathrow Airport

Fastest flight time

Direct flights

Frequently asked questions about flying from McAllen to London Heathrow Airport

Best airlines flying from McAllen to London Heathrow Airport

Compare and see reviews for airlines that fly from McAllen to London Heathrow Airport with momondo

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