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Cheap flights from McAllen to London from £303

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 2/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from McAllen to London

Cheap return flights

Enter your travel dates to find the best prices.
United Airlines Logo
07:00 - 07:30MFE-LHR
18h 30m1 stop
United Airlines Logo
14:30 - 21:59LHR-MFE
37h 29m2 stops
£475United Airlines
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Wed, 3 Dec - Tue, 9 Dec
United Airlines Logo
07:00 - 09:10MFE-LHR
20h 10m2 stops
United Airlines Logo
14:30 - 21:59LHR-MFE
37h 29m2 stops
£478United Airlines
Find Deal
Wed, 3 Dec - Tue, 9 Dec
United Airlines Logo
12:10 - 07:30MFE-LHR
13h 20m1 stop
United Airlines Logo
09:30 - 21:42LHR-MFE
18h 12m2 stops
£484United Airlines
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Thu, 19 Feb - Sat, 28 Feb
Delta Logo
13:00 - 13:50MFE-LHR
18h 50m2 stops
Delta Logo
06:30 - 17:13LHR-MFE
40h 43m2 stops
£489Delta
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Thu, 8 Jan - Sat, 17 Jan
Iberia Logo
14:42 - 10:00MFE-LHR
13h 18m1 stop
Iberia Logo
10:05 - 23:14LHR-MFE
19h 09m1 stop
£493Iberia
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Wed, 3 Dec - Tue, 9 Dec
British Airways Logo
11:53 - 08:35MFE-LHR
14h 42m1 stop
British Airways Logo
08:20 - 22:59LHR-MFE
20h 39m1 stop
£504British Airways
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Sun, 7 Dec - Fri, 19 Dec
British Airways Logo
17:09 - 06:50MFE-LHR
31h 41m1 stop
British Airways Logo
08:20 - 22:59LHR-MFE
20h 39m1 stop
£514British Airways
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Sat, 6 Dec - Fri, 19 Dec
Multiple Airlines Logo
07:00 - 10:50MFE-LHR
21h 50m3 stops
Multiple Airlines Logo
13:25 - 20:05LHR-MFE
36h 40m2 stops
£582Multiple Airlines
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Thu, 8 Jan - Sat, 17 Jan
Delta Logo
05:25 - 06:20MFE-LHR
19h 55m2 stops
Delta Logo
13:05 - 00:07LHR-MFE
17h 02m2 stops
£721Delta
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Fri, 27 Mar - Tue, 31 Mar
Multiple Airlines Logo
17:15 - 06:30MFE-LHR
31h 15m2 stops
Multiple Airlines Logo
09:30 - 21:30LHR-MFE
18h 00m2 stops
£958Multiple Airlines
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Sat, 11 Apr - Mon, 13 Apr

British Airways flights from McAllen to London Heathrow Airport

Our best British Airways deals on McAllen to London Heathrow Airport flight tickets
British Airways
7 Dec
MFE11:53McAllen Miller Intl
14h 42m
1 stop
LHR08:35London Heathrow
19 Dec
LHR08:20London Heathrow
20h 39m
1 stop
MFE22:59McAllen Miller Intl
£504
Find similar
British Airways
6 Dec
MFE17:09McAllen Miller Intl
31h 41m
1 stop
LHR06:50London Heathrow
19 Dec
LHR08:20London Heathrow
20h 39m
1 stop
MFE22:59McAllen Miller Intl
£514
Find similar
British Airways
16 Jan
MFE17:56McAllen Miller Intl
11h 44m
1 stop
LHR11:40London Heathrow
22 Jan
LHR08:20London Heathrow
15h 57m
1 stop
MFE18:17McAllen Miller Intl
£518
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Air Canada flights from McAllen to London Heathrow Airport

Our best Air Canada deals on McAllen to London Heathrow Airport flight tickets
Air Canada
3 Jan
MFE16:55McAllen Miller Intl
33h 35m
2 stops
LHR08:30London Heathrow
16 Jan
LHR18:00London Heathrow
33h 57m
2 stops
MFE21:57McAllen Miller Intl
£850
Find similar
Air Canada
12 Nov
MFE19:22McAllen Miller Intl
31h 08m
2 stops
LHR08:30London Heathrow
15 Nov
LHR13:00London Heathrow
32h 57m
2 stops
MFE15:57McAllen Miller Intl
£1,330
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momondo Fare Finder

 
Customise your flight search to find flights from McAllen to London Heathrow Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 31 October 2025.
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

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Wed 3/12

07:00-07:30

1 stop18h 30m

London Heathrow

Tue 9/12

14:30-21:59

2 stops37h 29m

£475

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Wed 3/12

07:00-09:10

2 stops20h 10m

London Heathrow

Tue 9/12

14:30-21:59

2 stops37h 29m

£478

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Thu 19/2

12:10-07:30

1 stop13h 20m

London Heathrow

Sat 28/2

09:30-21:42

2 stops18h 12m

£484

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Thu 8/1

13:00-13:50

2 stops18h 50m

London Heathrow

Sat 17/1

06:30-17:13

2 stops40h 43m

£489

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Wed 3/12

14:42-10:00

1 stop13h 18m

London Heathrow

Tue 9/12

10:05-23:14

1 stop19h 09m

£493

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Sun 7/12

11:53-08:35

1 stop14h 42m

London Heathrow

Fri 19/12

08:20-22:59

1 stop20h 39m

£504

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Sat 6/12

17:09-06:50

1 stop31h 41m

London Heathrow

Fri 19/12

08:20-22:59

1 stop20h 39m

£514

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Thu 8/1

07:00-10:50

3 stops21h 50m

London Heathrow

Sat 17/1

13:25-20:05

2 stops36h 40m

£582

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Fri 27/3

05:25-06:20

2 stops19h 55m

London Heathrow

Tue 31/3

13:05-00:07

2 stops17h 02m

£721

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Sat 11/4

17:15-06:30

2 stops31h 15m

London Heathrow

Mon 13/4

09:30-21:30

2 stops18h 00m

£958

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

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

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

In general, August 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 £496. The month of September is another great option to travel to London Heathrow Airport, with average flight prices from McAllen averaging around £524.

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

Direct flights

None
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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  • 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 25m 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.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
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Southend-on-Sea
Ipswich
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Guildford
Swanage
Colchester
Dover
Hayes
Chelmsford

Why use momondo?

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.

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

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.

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