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Cheap flights from McAllen to London from $399

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 round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
9:30 am - 7:30 amMFE-LHR
16h 00m1 stop
United Airlines Logo
2:30 pm - 9:57 pmLHR-MFE
37h 27m2 stops
$659United Airlines
Find Deal
vie., ene. 16 - jue., ene. 22
British Airways Logo
11:53 am - 8:35 amMFE-LHR
14h 42m1 stop
British Airways Logo
8:20 am - 10:59 pmLHR-MFE
20h 39m1 stop
$664British Airways
Find Deal
dom., dic. 7 - vie., dic. 19
United Airlines Logo
12:05 pm - 10:50 amMFE-LHR
16h 45m2 stops
United Airlines Logo
8:30 am - 9:57 pmLHR-MFE
19h 27m2 stops
$668United Airlines
Find Deal
vie., ene. 16 - jue., ene. 22
British Airways Logo
5:09 pm - 6:50 amMFE-LHR
31h 41m1 stop
British Airways Logo
8:20 am - 10:59 pmLHR-MFE
20h 39m1 stop
$677British Airways
Find Deal
sáb., dic. 6 - vie., dic. 19
British Airways Logo
5:56 pm - 11:40 amMFE-LHR
11h 44m1 stop
British Airways Logo
8:20 am - 6:17 pmLHR-MFE
15h 57m1 stop
$682British Airways
Find Deal
vie., ene. 16 - jue., ene. 22
United Airlines Logo
12:15 pm - 11:05 amMFE-LHR
16h 50m2 stops
United Airlines Logo
10:00 am - 9:59 pmLHR-MFE
17h 59m1 stop
$740United Airlines
Find Deal
vie., nov. 14 - sáb., nov. 22
Air Canada Logo
7:00 am - 6:30 amMFE-LHR
41h 30m2 stops
Air Canada Logo
1:00 pm - 8:54 amLHR-MFE
25h 54m2 stops
$753Air Canada
Find Deal
vie., nov. 14 - sáb., nov. 22
United Airlines Logo
7:15 am - 7:30 amMFE-LHR
19h 15m1 stop
United Airlines Logo
2:05 pm - 9:07 amLHR-MFE
25h 02m2 stops
$806United Airlines
Find Deal
vie., mar. 27 - mar., mar. 31
Delta Logo
5:25 am - 6:20 amMFE-LHR
19h 55m2 stops
Delta Logo
1:05 pm - 12:07 amLHR-MFE
17h 02m2 stops
$951Delta
Find Deal
vie., mar. 27 - mar., mar. 31
Air Canada Logo
7:15 am - 6:30 amMFE-LHR
18h 15m2 stops
Air Canada Logo
8:30 am - 9:30 pmLHR-MFE
19h 00m2 stops
$1,044Air Canada
Find Deal
vie., mar. 27 - mar., mar. 31

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 7
MFE11:53 amMcAllen Miller Intl
14h 42m
1 stop
LHR8:35 amLondon Heathrow
Dec 19
LHR8:20 amLondon Heathrow
20h 39m
1 stop
MFE10:59 pmMcAllen Miller Intl
$664
Find similar
British Airways
Dec 6
MFE5:09 pmMcAllen Miller Intl
31h 41m
1 stop
LHR6:50 amLondon Heathrow
Dec 19
LHR8:20 amLondon Heathrow
20h 39m
1 stop
MFE10:59 pmMcAllen Miller Intl
$677
Find similar
British Airways
Jan 16
MFE5:56 pmMcAllen Miller Intl
11h 44m
1 stop
LHR11:40 amLondon Heathrow
Jan 22
LHR8:20 amLondon Heathrow
15h 57m
1 stop
MFE6:17 pmMcAllen Miller Intl
$682
Find similar

Air Canada flights from McAllen to London Heathrow Airport

Our best Air Canada deals on McAllen to London Heathrow Airport flight tickets
Air Canada
Nov 14
MFE7:00 amMcAllen Miller Intl
41h 30m
2 stops
LHR6:30 amLondon Heathrow
Nov 22
LHR1:00 pmLondon Heathrow
25h 54m
2 stops
MFE8:54 amMcAllen Miller Intl
$753
Find similar
Air Canada
Mar 27
MFE7:15 amMcAllen Miller Intl
18h 15m
2 stops
LHR6:30 amLondon Heathrow
Mar 31
LHR8:30 amLondon Heathrow
19h 00m
2 stops
MFE9:30 pmMcAllen Miller Intl
$1,044
Find similar
Air Canada
Nov 26
MFE7:00 amMcAllen Miller Intl
22h 20m
2 stops
LHR11:20 amLondon Heathrow
Nov 30
LHR6:00 pmLondon Heathrow
32h 08m
2 stops
MFE8:08 pmMcAllen Miller Intl
$1,118
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 octubre 30, 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

vie. 1/16

9:30 am-7:30 am

1 stop16h 00m

London Heathrow

jue. 1/22

2:30 pm-9:57 pm

2 stops37h 27m

$659

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

dom. 12/7

11:53 am-8:35 am

1 stop14h 42m

London Heathrow

vie. 12/19

8:20 am-10:59 pm

1 stop20h 39m

$664

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

vie. 1/16

12:05 pm-10:50 am

2 stops16h 45m

London Heathrow

jue. 1/22

8:30 am-9:57 pm

2 stops19h 27m

$668

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

sáb. 12/6

5:09 pm-6:50 am

1 stop31h 41m

London Heathrow

vie. 12/19

8:20 am-10:59 pm

1 stop20h 39m

$677

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

vie. 1/16

5:56 pm-11:40 am

1 stop11h 44m

London Heathrow

jue. 1/22

8:20 am-6:17 pm

1 stop15h 57m

$682

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

vie. 11/14

12:15 pm-11:05 am

2 stops16h 50m

London Heathrow

sáb. 11/22

10:00 am-9:59 pm

1 stop17h 59m

$740

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

vie. 11/14

7:00 am-6:30 am

2 stops41h 30m

London Heathrow

sáb. 11/22

1:00 pm-8:54 am

2 stops25h 54m

$753

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

vie. 3/27

7:15 am-7:30 am

1 stop19h 15m

London Heathrow

mar. 3/31

2:05 pm-9:07 am

2 stops25h 02m

$806

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

vie. 3/27

5:25 am-6:20 am

2 stops19h 55m

London Heathrow

mar. 3/31

1:05 pm-12:07 am

2 stops17h 02m

$951

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

vie. 3/27

7:15 am-6:30 am

2 stops18h 15m

London Heathrow

mar. 3/31

8:30 am-9:30 pm

2 stops19h 00m

$1,044

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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?

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.

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

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.
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. 11h 15m 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 $680Free CancellationRating
6.7
7,487 reviews
Search British Airways flights
United AirlinesPriceFrom $682Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
American AirlinesPriceFrom $880Free CancellationRating
7.2
11,030 reviews
Search American 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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