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Cheap flights from London Heathrow Airport to McAllen from $829

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to McAllen departing on 1/6. 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

Find the cheapest flights from London Heathrow Airport to McAllen

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:40 am - 5:59 pm
LHR
-
MFE
16h 19m
2 stops
United Airlines Logo
12:03 pm - 9:10 am
MFE
-
LHR
15h 07m
2 stops
$1,275United Airlines
Sat, Nov 14 - Mon, Nov 16
United Airlines Logo
10:00 am - 5:59 pm
LHR
-
MFE
13h 59m
1 stop
United Airlines Logo
2:04 pm - 7:40 am
MFE
-
LHR
11h 36m
1 stop
$1,277United Airlines
Sat, Nov 14 - Mon, Nov 16
United Airlines Logo
12:05 pm - 11:14 pm
LHR
-
MFE
17h 09m
2 stops
United Airlines Logo
12:00 pm - 7:55 am
MFE
-
LHR
13h 55m
2 stops
$1,280United Airlines
Sat, Nov 14 - Mon, Nov 16
United Airlines Logo
7:40 am - 7:20 pm
LHR
-
MFE
17h 40m
2 stops
United Airlines Logo
12:04 pm - 11:05 am
MFE
-
LHR
17h 01m
2 stops
$1,541United Airlines
Mon, Dec 21 - Mon, Dec 28
Multiple Airlines Logo
1:50 pm - 10:59 pm
LHR
-
MFE
15h 09m
1 stop
Multiple Airlines Logo
9:32 am - 10:00 am
MFE
-
LHR
18h 28m
1 stop
$1,547Multiple Airlines
Mon, Dec 21 - Mon, Dec 28
Multiple Airlines Logo
6:55 am - 10:59 pm
LHR
-
MFE
46h 04m
3 stops
Multiple Airlines Logo
7:16 pm - 8:10 pm
MFE
-
LHR
42h 54m
2 stops
$13,924Multiple Airlines
Mon, Dec 21 - Mon, Dec 28

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United Airlines flights from London Heathrow Airport to McAllen

Our best United Airlines deals on London Heathrow Airport to McAllen flight tickets
United Airlines
Sep 10
LHR7:25 amLondon Heathrow
20h 34m
2 stops
MFE9:59 pmMcAllen Miller Intl
Sep 17
MFE12:00 pmMcAllen Miller Intl
16h 40m
2 stops
LHR10:40 amLondon Heathrow
$1,242
United Airlines
Nov 14
LHR7:40 amLondon Heathrow
16h 19m
2 stops
MFE5:59 pmMcAllen Miller Intl
Nov 16
MFE12:03 pmMcAllen Miller Intl
15h 07m
2 stops
LHR9:10 amLondon Heathrow
$1,275
United Airlines
Nov 14
LHR10:00 amLondon Heathrow
13h 59m
1 stop
MFE5:59 pmMcAllen Miller Intl
Nov 16
MFE9:30 amMcAllen Miller Intl
16h 25m
2 stops
LHR7:55 amLondon Heathrow
$1,277

momondo Fare Finder

 
Customize your flight search to find flights from London Heathrow Airport to McAllen 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 27, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to McAllen that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Sat 11/14

7:40 am-5:59 pm

2 stops16h 19m

McAllen Miller Intl

Mon 11/16

12:03 pm-9:10 am

2 stops15h 07m

$1,275
Quickest round-trip

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Sat 11/14

10:00 am-5:59 pm

1 stop13h 59m

McAllen Miller Intl

Mon 11/16

2:04 pm-7:40 am

1 stop11h 36m

$1,277

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Sat 11/14

12:05 pm-11:14 pm

2 stops17h 09m

McAllen Miller Intl

Mon 11/16

12:00 pm-7:55 am

2 stops13h 55m

$1,280

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Mon 12/21

7:40 am-7:20 pm

2 stops17h 40m

McAllen Miller Intl

Mon 12/28

12:04 pm-11:05 am

2 stops17h 01m

$1,541

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Mon 12/21

1:50 pm-10:59 pm

1 stop15h 09m

McAllen Miller Intl

Mon 12/28

9:32 am-10:00 am

1 stop18h 28m

$1,547

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Mon 12/21

6:55 am-10:59 pm

3 stops46h 04m

McAllen Miller Intl

Mon 12/28

7:16 pm-8:10 pm

2 stops42h 54m

$13,924
Cheapest one-way
Quickest one-way

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Wed 1/6

10:00 am-7:20 pm

1 stop15h 20m

$829

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Wed 1/6

10:00 am-7:20 pm

1 stop15h 20m

$833

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Wed 1/6

10:00 am-7:20 pm

1 stop15h 20m

$835

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Wed 1/6

6:00 pm-7:20 pm

2 stops31h 20m

$848

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to McAllen from

How to get the cheapest flight ticket from London Heathrow Airport to McAllen

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 airline that flies from London Heathrow to McAllen Miller Intl?

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

When to book flights from London Heathrow Airport to McAllen

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to McAllen according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap London Heathrow Airport to McAllen (LHR to MFE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to McAllen

Fastest flight time

16h 19m

Direct flights

None
The fastest flight from London Heathrow Airport to McAllen takes 16h 19m
There are no direct flights from London Heathrow Airport to McAllen. There are no popular flight routes from London Heathrow Airport to McAllen.
Search flight deals

Frequently asked questions about flying from London Heathrow Airport to McAllen

  • How far is London Heathrow to McAllen Miller Intl by plane?

    A flight from London Heathrow to McAllen Miller Intl will travel around 5133.2 mi. By plane, this route typically takes 16h 19m.

  • When did momondo last update prices for flights from London Heathrow Airport to McAllen Miller Intl Airport?

    Prices for flights from London Heathrow Airport to McAllen Miller Intl Airport are updated daily.

  • How old do you have to be to fly from London Heathrow Airport to McAllen Miller Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to McAllen Miller Intl Airport.

  • What documentation or ID do you need to fly to McAllen Miller Intl Airport?

    The travel and health documents required for your trip to McAllen Miller Intl 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 McAllen Miller Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near McAllen?

Book flights to McAllen if you plan to visit one of these locations
Weslaco
Pharr
Edinburg
Mission

Why use momondo?

Why should I use momondo to find a flight deal from London to McAllen?

Finding the right flight to McAllen from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to McAllen quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to McAllen from London with this policy.

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

momondo provides multiple filters to help you find the best flight to McAllen from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to McAllen from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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