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Cheap flights from McAllen to London from $463

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 9/16. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from McAllen to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Iberia Logo
11:56 am - 6:50 am
MFE
-
LHR
12h 54m
1 stop
Iberia Logo
7:30 am - 9:36 pm
LHR
-
MFE
20h 06m
2 stops
$867Iberia
Tue, Dec 1 - Tue, Dec 8
Iberia Logo
2:49 pm - 1:35 pm
MFE
-
LHR
16h 46m
2 stops
Iberia Logo
7:40 pm - 8:57 am
LHR
-
MFE
19h 17m
2 stops
$875Iberia
Wed, Dec 2 - Wed, Dec 9
Iberia Logo
11:13 am - 2:25 pm
MFE
-
LHR
21h 12m
1 stop
Iberia Logo
8:00 pm - 12:08 am
LHR
-
MFE
34h 08m
2 stops
$878Iberia
Wed, Oct 14 - Tue, Oct 20
Air Canada Logo
7:27 pm - 7:10 am
MFE
-
LHR
29h 43m
2 stops
Air Canada Logo
3:00 pm - 4:00 pm
LHR
-
MFE
31h 00m
2 stops
$894Air Canada
Tue, Dec 1 - Tue, Dec 8
British Airways Logo
11:56 am - 6:50 am
MFE
-
LHR
12h 54m
1 stop
British Airways Logo
1:50 pm - 9:36 pm
LHR
-
MFE
13h 46m
1 stop
$898British Airways
Tue, Dec 1 - Tue, Dec 8
British Airways Logo
11:13 am - 9:00 am
MFE
-
LHR
15h 47m
1 stop
British Airways Logo
8:55 am - 5:31 pm
LHR
-
MFE
14h 36m
1 stop
$899British Airways
Wed, Oct 14 - Tue, Oct 20
Multiple Airlines Logo
11:21 am - 10:55 am
MFE
-
LHR
17h 34m
1 stop
Multiple Airlines Logo
12:55 pm - 9:46 pm
LHR
-
MFE
14h 51m
1 stop
$904Multiple Airlines
Wed, Sep 23 - Wed, Oct 7
United Airlines Logo
2:08 pm - 7:45 am
MFE
-
LHR
11h 37m
1 stop
United Airlines Logo
1:40 pm - 9:58 pm
LHR
-
MFE
14h 18m
1 stop
$907United Airlines
Wed, Sep 23 - Wed, Oct 7
Multiple Airlines Logo
11:21 am - 10:55 am
MFE
-
LHR
17h 34m
1 stop
Multiple Airlines Logo
12:55 pm - 9:46 pm
LHR
-
MFE
14h 51m
1 stop
$909Multiple Airlines
Wed, Sep 23 - Wed, Oct 7
Iberia Logo
9:59 am - 12:00 pm
MFE
-
LHR
20h 01m
1 stop
Iberia Logo
6:15 am - 11:17 pm
LHR
-
MFE
23h 02m
2 stops
$917Iberia
Sun, Jan 10 - Sun, Jan 17

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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
Dec 1
MFE11:56 amMcAllen Miller Intl
12h 54m
1 stop
LHR6:50 amLondon Heathrow
Dec 8
LHR1:50 pmLondon Heathrow
13h 46m
1 stop
MFE9:36 pmMcAllen Miller Intl
$898
British Airways
Oct 14
MFE11:13 amMcAllen Miller Intl
15h 47m
1 stop
LHR9:00 amLondon Heathrow
Oct 20
LHR8:55 amLondon Heathrow
14h 36m
1 stop
MFE5:31 pmMcAllen Miller Intl
$899
British Airways
Sep 16
MFE11:21 amMcAllen Miller Intl
15h 44m
1 stop
LHR9:05 amLondon Heathrow
Sep 30
LHR10:50 amLondon Heathrow
27h 54m
2 stops
MFE8:44 amMcAllen Miller Intl
$941

United Airlines flights from McAllen to London Heathrow Airport

Our best United Airlines deals on McAllen to London Heathrow Airport flight tickets
United Airlines
Sep 23
MFE2:08 pmMcAllen Miller Intl
11h 37m
1 stop
LHR7:45 amLondon Heathrow
Oct 7
LHR1:40 pmLondon Heathrow
14h 18m
1 stop
MFE9:58 pmMcAllen Miller Intl
$907
United Airlines
Sep 23
MFE2:08 pmMcAllen Miller Intl
15h 27m
1 stop
LHR11:35 amLondon Heathrow
Oct 7
LHR7:45 amLondon Heathrow
16h 14m
2 stops
MFE5:59 pmMcAllen Miller Intl
$909
United Airlines
Aug 26
MFE5:25 pmMcAllen Miller Intl
12h 10m
1 stop
LHR11:35 amLondon Heathrow
Sep 9
LHR7:30 amLondon Heathrow
20h 29m
2 stops
MFE9:59 pmMcAllen Miller Intl
$943

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated July 15, 2026.
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

Tue 12/1

11:56 am-6:50 am

1 stop12h 54m

London Heathrow

Tue 12/8

7:30 am-9:36 pm

2 stops20h 06m

$867

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Wed 12/2

2:49 pm-1:35 pm

2 stops16h 46m

London Heathrow

Wed 12/9

7:40 pm-8:57 am

2 stops19h 17m

$875

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Wed 10/14

11:13 am-2:25 pm

1 stop21h 12m

London Heathrow

Tue 10/20

8:00 pm-12:08 am

2 stops34h 08m

$878

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Tue 12/1

7:27 pm-7:10 am

2 stops29h 43m

London Heathrow

Tue 12/8

3:00 pm-4:00 pm

2 stops31h 00m

$894

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Tue 12/1

11:56 am-6:50 am

1 stop12h 54m

London Heathrow

Tue 12/8

1:50 pm-9:36 pm

1 stop13h 46m

$898

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Wed 10/14

11:13 am-9:00 am

1 stop15h 47m

London Heathrow

Tue 10/20

8:55 am-5:31 pm

1 stop14h 36m

$899

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Wed 9/23

11:21 am-10:55 am

1 stop17h 34m

London Heathrow

Wed 10/7

12:55 pm-9:46 pm

1 stop14h 51m

$904
Quickest round-trip

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Wed 9/23

2:08 pm-7:45 am

1 stop11h 37m

London Heathrow

Wed 10/7

1:40 pm-9:58 pm

1 stop14h 18m

$907

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Wed 9/23

11:21 am-10:55 am

1 stop17h 34m

London Heathrow

Wed 10/7

12:55 pm-9:46 pm

1 stop14h 51m

$909

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Sun 1/10

9:59 am-12:00 pm

1 stop20h 01m

London Heathrow

Sun 1/17

6:15 am-11:17 pm

2 stops23h 02m

$917

Flights are sorted by cheapest round-trip flights first.

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

The month of December is, on average, the cheapest month to fly to London Heathrow Airport from McAllen, with most prices found around $0. If you’re not able to fly to London Heathrow Airport in December, then November is your next best option. Flight prices from McAllen to London Heathrow Airport during November average around $703.

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

You could potentially save up to 19% 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

15h 47m

Direct flights

None
The fastest flight from McAllen to London Heathrow Airport takes 15h 47m
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?

    A flight from McAllen Miller Intl to London Heathrow will travel around 5133.2 mi. 15h 47m 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?

  • 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?

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 AirwaysPriceFrom $628Free CancellationRating
6.7
8,116 reviews
Search British Airways flights
United AirlinesPriceFrom $698Free CancellationRating
7.4
9,989 reviews
Search United Airlines flights

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Watford
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Guildford

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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