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Cheap flights from McAllen to London from $603

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 3/13. 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 round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
12:05 pm - 10:15 am
MFE
-
LHR
16h 10m1 stop
Lufthansa Logo
9:30 am - 9:57 pm
LHR
-
MFE
18h 27m2 stops
$607Lufthansa
Mon, Jan 26 - Tue, Feb 3
KLM Logo
1:00 pm - 11:40 am
MFE
-
LHR
16h 40m2 stops
KLM Logo
5:50 pm - 11:57 pm
LHR
-
MFE
36h 07m2 stops
$620KLM
Mon, Jan 19 - Wed, Feb 4
Lufthansa Logo
12:05 pm - 10:15 am
MFE
-
LHR
16h 10m1 stop
Lufthansa Logo
12:05 pm - 9:57 pm
LHR
-
MFE
15h 52m1 stop
$623Lufthansa
Mon, Jan 26 - Tue, Feb 3
Lufthansa Logo
12:05 pm - 12:50 pm
MFE
-
LHR
18h 45m2 stops
Lufthansa Logo
9:30 am - 9:57 pm
LHR
-
MFE
18h 27m2 stops
$625Lufthansa
Mon, Jan 26 - Tue, Feb 3
British Airways Logo
1:03 pm - 8:35 am
MFE
-
LHR
13h 32m1 stop
British Airways Logo
7:40 pm - 11:30 am
LHR
-
MFE
21h 50m2 stops
$628British Airways
Mon, Jan 19 - Wed, Feb 4
United Airlines Logo
9:30 am - 7:30 am
MFE
-
LHR
16h 00m1 stop
United Airlines Logo
11:10 am - 4:07 pm
LHR
-
MFE
34h 57m2 stops
$640United Airlines
Fri, Jan 23 - Tue, Jan 27
Air Canada Logo
7:00 am - 7:10 am
MFE
-
LHR
18h 10m2 stops
Air Canada Logo
1:00 pm - 4:07 pm
LHR
-
MFE
33h 07m2 stops
$644Air Canada
Fri, Jan 23 - Tue, Jan 27
British Airways Logo
1:03 pm - 8:35 am
MFE
-
LHR
13h 32m1 stop
British Airways Logo
10:35 am - 6:17 pm
LHR
-
MFE
13h 42m1 stop
$649British Airways
Mon, Jan 19 - Wed, Feb 4
British Airways Logo
3:48 pm - 12:15 pm
MFE
-
LHR
15h 27m1 stop
British Airways Logo
9:15 am - 8:57 am
LHR
-
MFE
29h 42m2 stops
$653British Airways
Tue, Mar 24 - Tue, Mar 31
Lufthansa Logo
5:15 pm - 10:15 am
MFE
-
LHR
12h 00m1 stop
Lufthansa Logo
10:00 am - 9:48 pm
LHR
-
MFE
17h 48m1 stop
$654Lufthansa
Tue, Mar 24 - Tue, Mar 31

Lufthansa flights from McAllen to London Heathrow Airport

Our best Lufthansa deals on McAllen to London Heathrow Airport flight tickets
Lufthansa
Jan 26
MFE12:05 pmMcAllen Miller Intl
16h 10m
1 stop
LHR10:15 amLondon Heathrow
Feb 3
LHR9:30 amLondon Heathrow
18h 27m
2 stops
MFE9:57 pmMcAllen Miller Intl
$607
Find similar
Lufthansa
Jan 26
MFE12:05 pmMcAllen Miller Intl
16h 10m
1 stop
LHR10:15 amLondon Heathrow
Feb 3
LHR12:05 pmLondon Heathrow
15h 52m
1 stop
MFE9:57 pmMcAllen Miller Intl
$623
Find similar
Lufthansa
Jan 26
MFE12:05 pmMcAllen Miller Intl
18h 45m
2 stops
LHR12:50 pmLondon Heathrow
Feb 3
LHR9:30 amLondon Heathrow
18h 27m
2 stops
MFE9:57 pmMcAllen Miller Intl
$625
Find similar

KLM flights from McAllen to London Heathrow Airport

Our best KLM deals on McAllen to London Heathrow Airport flight tickets
KLM
Jan 19
MFE1:00 pmMcAllen Miller Intl
16h 40m
2 stops
LHR11:40 amLondon Heathrow
Feb 4
LHR5:50 pmLondon Heathrow
36h 07m
2 stops
MFE11:57 pmMcAllen Miller Intl
$620
Find similar
KLM
Dec 27
MFE12:38 pmMcAllen Miller Intl
17h 02m
2 stops
LHR11:40 amLondon Heathrow
Jan 2
LHR8:25 pmLondon Heathrow
33h 33m
2 stops
MFE11:58 pmMcAllen Miller Intl
$2,093
Find similar

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 December 22, 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

Mon 1/26

12:05 pm-10:15 am

1 stop16h 10m

London Heathrow

Tue 2/3

9:30 am-9:57 pm

2 stops18h 27m

$607

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Mon 1/19

1:00 pm-11:40 am

2 stops16h 40m

London Heathrow

Wed 2/4

5:50 pm-11:57 pm

2 stops36h 07m

$620

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Mon 1/26

12:05 pm-10:15 am

1 stop16h 10m

London Heathrow

Tue 2/3

12:05 pm-9:57 pm

1 stop15h 52m

$623

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Mon 1/26

12:05 pm-12:50 pm

2 stops18h 45m

London Heathrow

Tue 2/3

9:30 am-9:57 pm

2 stops18h 27m

$625

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Mon 1/19

1:03 pm-8:35 am

1 stop13h 32m

London Heathrow

Wed 2/4

7:40 pm-11:30 am

2 stops21h 50m

$628

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Fri 1/23

9:30 am-7:30 am

1 stop16h 00m

London Heathrow

Tue 1/27

11:10 am-4:07 pm

2 stops34h 57m

$640

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Fri 1/23

7:00 am-7:10 am

2 stops18h 10m

London Heathrow

Tue 1/27

1:00 pm-4:07 pm

2 stops33h 07m

$644

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Mon 1/19

1:03 pm-8:35 am

1 stop13h 32m

London Heathrow

Wed 2/4

10:35 am-6:17 pm

1 stop13h 42m

$649

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Tue 3/24

3:48 pm-12:15 pm

1 stop15h 27m

London Heathrow

Tue 3/31

9:15 am-8:57 am

2 stops29h 42m

$653

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Tue 3/24

5:15 pm-10:15 am

1 stop12h 00m

London Heathrow

Tue 3/31

10:00 am-9:48 pm

1 stop17h 48m

$654

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 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 August is, on average, the cheapest month to fly to London Heathrow Airport from McAllen, with most prices found around $653. If you’re not able to fly to London Heathrow Airport in August, then September is your next best option. Flight prices from McAllen to London Heathrow Airport during September average around $690.

What is the cheapest day to depart on your flight to London Heathrow Airport?

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $756. The most expensive day to fly to London Heathrow Airport is Sunday, with ticket prices averaging around $1,290.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from McAllen to London Heathrow Airport in the afternoon for as low as $940. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the evening are often more expensive with an average ticket price of $1,239.

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

You could potentially save up to 4% 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 27m

Direct flights

None
The fastest flight from McAllen to London Heathrow Airport takes 15h 27m
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

  • 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 27m 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
7,603 reviews
Search British Airways flights
United AirlinesPriceFrom $682Free CancellationRating
7.4
9,102 reviews
Search United Airlines flights

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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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