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 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 you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£649 Cheap Flights from McAllen to London Heathrow Airport in 2026/27

Find the cheapest flights from McAllen to London

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

18:35 - 06:50MFE McAllen Miller Intl-LHR London Heathrow

31h 15m1 stop Dallas/Fort Worth

20:00 - 17:28LHR London Heathrow-MFE McAllen Miller Intl

27h 28m2 stops Madrid Barajas Dallas/Fort Worth

£649British Airways

Sat, 20 Mar - Mon, 5 Apr

05:25 - 10:30MFE McAllen Miller Intl-LHR London Heathrow

24h 05m2 stops Austin Bergstrom New York John F Kennedy Intl

08:40 - 23:59LHR London Heathrow-MFE McAllen Miller Intl

20h 19m2 stops Amsterdam Schiphol Austin Bergstrom

£662Delta

Mon, 15 Mar - Thu, 25 Mar

14:07 - 10:15MFE McAllen Miller Intl-LHR London Heathrow

15h 08m1 stop Houston George Bush Intcntl

07:30 - 23:09LHR London Heathrow-MFE McAllen Miller Intl

20h 39m2 stops Frankfurt am Main Houston George Bush Intcntl

£666United Airlines

Mon, 15 Mar - Tue, 23 Mar

14:07 - 10:50MFE McAllen Miller Intl-LHR London Heathrow

15h 43m2 stops Houston George Bush Intcntl Washington, D.C. Dulles Intl

09:30 - 23:09LHR London Heathrow-MFE McAllen Miller Intl

18h 39m2 stops Frankfurt am Main Houston George Bush Intcntl

£669United Airlines

Tue, 16 Mar - Tue, 23 Mar

19:30 - 07:40MFE McAllen Miller Intl-LHR London Heathrow

31h 10m1 stop Houston George Bush Intcntl

09:30 - 23:09LHR London Heathrow-MFE McAllen Miller Intl

18h 39m2 stops Frankfurt am Main Houston George Bush Intcntl

£670United Airlines

Sun, 14 Mar - Tue, 23 Mar

17:15 - 16:50MFE McAllen Miller Intl-LHR London Heathrow

18h 35m2 stops Houston George Bush Intcntl Frankfurt am Main

07:30 - 23:09LHR London Heathrow-MFE McAllen Miller Intl

20h 39m2 stops Frankfurt am Main Houston George Bush Intcntl

£680United Airlines

Mon, 15 Mar - Tue, 23 Mar

07:00 - 07:40MFE McAllen Miller Intl-LHR London Heathrow

19h 40m1 stop Houston George Bush Intcntl

12:05 - 23:09LHR London Heathrow-MFE McAllen Miller Intl

16h 04m1 stop Houston George Bush Intcntl

£682United Airlines

Mon, 15 Mar - Wed, 24 Mar

05:25 - 09:00MFE McAllen Miller Intl-LHR London Heathrow

22h 35m2 stops Austin Bergstrom Atlanta Hartsfield-Jackson

15:50 - 12:27LHR London Heathrow-MFE McAllen Miller Intl

25h 37m2 stops New York John F Kennedy Intl Austin Bergstrom

£685Delta

Mon, 15 Mar - Fri, 26 Mar

19:30 - 07:40MFE McAllen Miller Intl-LHR London Heathrow

31h 10m1 stop Houston George Bush Intcntl

12:05 - 23:09LHR London Heathrow-MFE McAllen Miller Intl

16h 04m1 stop Houston George Bush Intcntl

£686United Airlines

Sun, 14 Mar - Wed, 24 Mar

12:03 - 10:15MFE McAllen Miller Intl-LHR London Heathrow

16h 12m1 stop Houston George Bush Intcntl

09:30 - 21:58LHR London Heathrow-MFE McAllen Miller Intl

18h 28m2 stops Frankfurt am Main Houston George Bush Intcntl

£689United Airlines

Tue, 17 Nov - Tue, 24 Nov

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Delta flights from McAllen to London Heathrow Airport

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

Delta

15 Mar

MFE05:25McAllen Miller Intl

24h 05m

2 stops

LHR10:30London Heathrow

25 Mar

LHR08:40London Heathrow

20h 19m

2 stops

MFE23:59McAllen Miller Intl

£662

Delta

15 Mar

MFE05:25McAllen Miller Intl

22h 35m

2 stops

LHR09:00London Heathrow

26 Mar

LHR15:50London Heathrow

25h 37m

2 stops

MFE12:27McAllen Miller Intl

£685

Delta

18 Mar

MFE12:47McAllen Miller Intl

15h 38m

2 stops

LHR09:25London Heathrow

25 Mar

LHR08:40London Heathrow

20h 19m

2 stops

MFE23:59McAllen Miller Intl

£699

United Airlines flights from McAllen to London Heathrow Airport

Our best United Airlines deals on McAllen to London Heathrow Airport flight tickets

United Airlines

15 Mar

MFE17:15McAllen Miller Intl

12h 00m

1 stop

LHR10:15London Heathrow

24 Mar

LHR07:30London Heathrow

20h 39m

2 stops

MFE23:09McAllen Miller Intl

£666

United Airlines

16 Mar

MFE14:07McAllen Miller Intl

15h 43m

2 stops

LHR10:50London Heathrow

23 Mar

LHR09:30London Heathrow

18h 39m

2 stops

MFE23:09McAllen Miller Intl

£669

United Airlines

14 Mar

MFE19:30McAllen Miller Intl

33h 45m

1 stop

LHR10:15London Heathrow

24 Mar

LHR07:30London Heathrow

20h 39m

2 stops

MFE23:09McAllen Miller Intl

£670

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 return flight

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Sat 20/3

18:35-06:50

1 stop31h 15m

London Heathrow

Mon 5/4

20:00-17:28

2 stops27h 28m

£649

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Mon 15/3

05:25-10:30

2 stops24h 05m

London Heathrow

Thu 25/3

08:40-23:59

2 stops20h 19m

£662

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Mon 15/3

14:07-10:15

1 stop15h 08m

London Heathrow

Tue 23/3

07:30-23:09

2 stops20h 39m

£666

Fastest return journey

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Tue 16/3

14:07-10:50

2 stops15h 43m

London Heathrow

Tue 23/3

09:30-23:09

2 stops18h 39m

£669

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Sun 14/3

19:30-07:40

1 stop31h 10m

London Heathrow

Tue 23/3

09:30-23:09

2 stops18h 39m

£670

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Mon 15/3

17:15-16:50

2 stops18h 35m

London Heathrow

Tue 23/3

07:30-23:09

2 stops20h 39m

£680

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Mon 15/3

07:00-07:40

1 stop19h 40m

London Heathrow

Wed 24/3

12:05-23:09

1 stop16h 04m

£682

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Mon 15/3

05:25-09:00

2 stops22h 35m

London Heathrow

Fri 26/3

15:50-12:27

2 stops25h 37m

£685

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Sun 14/3

19:30-07:40

1 stop31h 10m

London Heathrow

Wed 24/3

12:05-23:09

1 stop16h 04m

£686

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Tue 17/11

12:03-10:15

1 stop16h 12m

London Heathrow

Tue 24/11

09:30-21:58

2 stops18h 28m

£689

Flights are sorted by cheapest return flights first.

Sorted 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

What is the cheapest month to fly to London Heathrow Airport?

In general, June is the cheapest month to fly from McAllen to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £0. The month of January is another great option to travel to London Heathrow Airport, with average flight prices from McAllen averaging around £601.

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 return 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

Best price found	£649
Fastest flight time	13h 32m
Direct flights	None

The best flight deal from McAllen to London Heathrow Airport found on momondo in the last 72 hours is £649

The fastest flight from McAllen to London Heathrow Airport takes 13h 32m

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

Search flight deals

Frequently asked questions about flying from McAllen to London Heathrow Airport

How far is McAllen Miller Intl to London Heathrow by plane?
The distance between McAllen Miller Intl and London Heathrow is about 5133.2 mi. Typically, this will take 13h 32m by plane in normal conditions.
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 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 you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

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momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from McAllen to London.

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If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from McAllen and alert you when they change.