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

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

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.

£343 Cheap Flights from McAllen to London Heathrow Airport in 2026

Find the cheapest flights from McAllen to London

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

11:47 - 06:50MFE McAllen Miller Intl-LHR London Heathrow

13h 03m1 stop Dallas/Fort Worth

19:05 - 08:52LHR London Heathrow-MFE McAllen Miller Intl

19h 47m2 stops Madrid Barajas Dallas/Fort Worth

£631British Airways

Mon, 30 Nov - Mon, 7 Dec

14:10 - 09:15MFE McAllen Miller Intl-LHR London Heathrow

37h 05m2 stops Dallas/Fort Worth Madrid Barajas

13:25 - 08:57LHR London Heathrow-MFE McAllen Miller Intl

25h 32m2 stops Madrid Barajas Dallas/Fort Worth

£635Iberia

Mon, 28 Dec - Wed, 13 Jan

11:47 - 11:55MFE McAllen Miller Intl-LHR London Heathrow

18h 08m2 stops Dallas/Fort Worth Madrid Barajas

19:40 - 08:52LHR London Heathrow-MFE McAllen Miller Intl

19h 12m2 stops Madrid Barajas Dallas/Fort Worth

£649Iberia

Mon, 30 Nov - Mon, 7 Dec

16:35 - 14:25MFE McAllen Miller Intl-LHR London Heathrow

15h 50m1 stop Dallas/Fort Worth

11:30 - 00:02LHR London Heathrow-MFE McAllen Miller Intl

18h 32m2 stops Madrid Barajas Dallas/Fort Worth

£656Iberia

Tue, 29 Sep - Thu, 8 Oct

14:10 - 09:15MFE McAllen Miller Intl-LHR London Heathrow

37h 05m2 stops Dallas/Fort Worth Madrid Barajas

11:15 - 20:19LHR London Heathrow-MFE McAllen Miller Intl

15h 04m1 stop Dallas/Fort Worth

£659Iberia

Mon, 28 Dec - Wed, 13 Jan

05:20 - 06:30MFE McAllen Miller Intl-LHR London Heathrow

19h 10m2 stops Houston George Bush Intcntl Montreal Pierre Elliott Trudeau Intl

15:00 - 21:58LHR London Heathrow-MFE McAllen Miller Intl

36h 58m2 stops Vancouver Intl Houston George Bush Intcntl

£664United Airlines

Tue, 29 Sep - Thu, 8 Oct

07:15 - 11:20MFE McAllen Miller Intl-LHR London Heathrow

22h 05m2 stops Houston George Bush Intcntl Toronto Pearson Intl

15:00 - 16:13LHR London Heathrow-MFE McAllen Miller Intl

31h 13m2 stops Toronto Pearson Intl Houston George Bush Intcntl

£665Air Canada

Tue, 29 Dec - Tue, 12 Jan

17:20 - 11:35MFE McAllen Miller Intl-LHR London Heathrow

12h 15m1 stop Houston George Bush Intcntl

07:30 - 21:58LHR London Heathrow-MFE McAllen Miller Intl

20h 28m2 stops Frankfurt am Main Houston George Bush Intcntl

£665United Airlines

Tue, 29 Sep - Tue, 6 Oct

07:00 - 06:30MFE McAllen Miller Intl-LHR London Heathrow

17h 30m2 stops Houston George Bush Intcntl Montreal Pierre Elliott Trudeau Intl

07:30 - 21:58LHR London Heathrow-MFE McAllen Miller Intl

20h 28m2 stops Frankfurt am Main Houston George Bush Intcntl

£668United Airlines

Tue, 29 Sep - Tue, 6 Oct

16:27 - 10:15MFE McAllen Miller Intl-LHR London Heathrow

11h 48m1 stop Houston George Bush Intcntl

10:00 - 17:58LHR London Heathrow-MFE McAllen Miller Intl

13h 58m1 stop Houston George Bush Intcntl

£670United Airlines

Tue, 29 Dec - Tue, 12 Jan

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British Airways flights from McAllen to London Heathrow Airport

Our best British Airways deals on McAllen to London Heathrow Airport flight tickets

British Airways

30 Nov

MFE11:47McAllen Miller Intl

13h 03m

1 stop

LHR06:50London Heathrow

7 Dec

LHR19:05London Heathrow

19h 47m

2 stops

MFE08:52McAllen Miller Intl

£631

British Airways

29 Sept

MFE16:35McAllen Miller Intl

15h 50m

1 stop

LHR14:25London Heathrow

6 Oct

LHR08:55London Heathrow

14h 36m

1 stop

MFE17:31McAllen Miller Intl

£678

British Airways

10 Jan

MFE08:00McAllen Miller Intl

24h 55m

2 stops

LHR14:55London Heathrow

17 Jan

LHR18:10London Heathrow

35h 23m

2 stops

MFE23:33McAllen Miller Intl

£693

Delta flights from McAllen to London Heathrow Airport

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

Delta

10 Jan

MFE16:34McAllen Miller Intl

39h 16m

2 stops

LHR13:50London Heathrow

17 Jan

LHR11:45London Heathrow

42h 14m

2 stops

MFE23:59McAllen Miller Intl

£702

Delta

14 Dec

MFE05:20McAllen Miller Intl

21h 40m

2 stops

LHR09:00London Heathrow

10 Jan

LHR11:45London Heathrow

42h 14m

2 stops

MFE23:59McAllen Miller Intl

£732

Delta

14 Dec

MFE05:20McAllen Miller Intl

21h 40m

2 stops

LHR09:00London Heathrow

7 Jan

LHR08:40London Heathrow

21h 19m

2 stops

MFE23:59McAllen Miller Intl

£738

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

Mon 30/11

11:47-06:50

1 stop13h 03m

London Heathrow

Mon 7/12

19:05-08:52

2 stops19h 47m

£631

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Mon 28/12

14:10-09:15

2 stops37h 05m

London Heathrow

Wed 13/1

13:25-08:57

2 stops25h 32m

£635

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Mon 30/11

11:47-11:55

2 stops18h 08m

London Heathrow

Mon 7/12

19:40-08:52

2 stops19h 12m

£649

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Tue 29/9

16:35-14:25

1 stop15h 50m

London Heathrow

Thu 8/10

11:30-00:02

2 stops18h 32m

£656

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Mon 28/12

14:10-09:15

2 stops37h 05m

London Heathrow

Wed 13/1

11:15-20:19

1 stop15h 04m

£659

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Tue 29/9

05:20-06:30

2 stops19h 10m

London Heathrow

Thu 8/10

15:00-21:58

2 stops36h 58m

£664

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Tue 29/12

07:15-11:20

2 stops22h 05m

London Heathrow

Tue 12/1

15:00-16:13

2 stops31h 13m

£665

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Tue 29/9

17:20-11:35

1 stop12h 15m

London Heathrow

Tue 6/10

07:30-21:58

2 stops20h 28m

£665

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Tue 29/9

07:00-06:30

2 stops17h 30m

London Heathrow

Tue 6/10

07:30-21:58

2 stops20h 28m

£668

Fastest return journey

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Tue 29/12

16:27-10:15

1 stop11h 48m

London Heathrow

Tue 12/1

10:00-17:58

1 stop13h 58m

£670

Flights are sorted by cheapest return flights first.

Showing 1-10 of 19 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 cheapest month to fly to London Heathrow Airport?

In general, December 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 June is another great option to travel to London Heathrow Airport, with average flight prices from McAllen averaging around £0.

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	£343
Fastest flight time	11h 37m
Direct flights	None

The best one-way flight to London Heathrow Airport from McAllen in the past 72 hours is £343. The best return flight deal from McAllen to London Heathrow Airport found on momondo in the last 72 hours is £631.

The fastest flight from McAllen to London Heathrow Airport takes 11h 37m

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 11h 37m 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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Why should I use momondo to find a flight deal from McAllen to London?

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

All flight searches from McAllen to London on momondo can be filtered to show those which offer flexible booking policies.

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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.

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

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.