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McAllen

$916+ Cheap flights from Heathrow (LHR) to McAllen (MFE)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/20. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — MFE
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap flight deals from Heathrow to McAllen

Cheapest flights from Heathrow to McAllen
Explore the most affordable flight options available from Heathrow to McAllen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

This United Airlines deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/109:30 am
LHR
-
MFE
2 stops18h 29m
United Airlines
Tue 3/179:30 am
MFE
-
LHR
1 stop19h 45m
United Airlines
Deal found 1/23$977
This British Airways deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1111:55 am
LHR
-
MFE
1 stop16h 11m
British Airways
Wed 3/1811:00 am
MFE
-
LHR
1 stop16h 15m
British Airways
Deal found 1/24$979
This Expedia deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1011:55 am
LHR
-
MFE
1 stop26h 02m
British Airways
Tue 3/173:48 pm
MFE
-
LHR
1 stop13h 12m
British Airways
Deal found 1/23$984
This United Airlines deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/59:10 am
LHR
-
MFE
2 stops18h 47m
United Airlines
Mon 2/912:05 pm
MFE
-
LHR
2 stops14h 20m
United Airlines
Deal found 1/23$1,008

Find flight deals from Heathrow to McAllen

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to McAllen (MFE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$977
(United Airlines)

One-way from

$916
(Cheapflightsfares)

Popular in

December

Cheapest in

October

Average price

$989
Provider with most accurate pricing for London Heathrow-McAllen Miller Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for London Heathrow-McAllen Miller Intl flights.
Search Deals
From London Heathrow to McAllen Miller Intl
Search Deals
One-way flight from London Heathrow to McAllen Miller Intl
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($93 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($54 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow 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, Cheapflights users made 2,558,603 searches. Data last updated January 26, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to McAllen that are best for you.

Fly from

Heathrow

Fly to

McAllen

Route

Depart

Return

Price

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Tue 3/10

9:30 am-10:59 pm

2 stops18h 29m

McAllen Miller Intl

Tue 3/17

9:30 am-10:15 am

1 stop19h 45m

$977

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Wed 3/11

11:55 am-11:06 pm

1 stop16h 11m

McAllen Miller Intl

Wed 3/18

11:00 am-8:15 am

1 stop16h 15m

$979

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Tue 3/10

11:55 am-8:57 am

1 stop26h 02m

McAllen Miller Intl

Tue 3/17

3:48 pm-10:00 am

1 stop13h 12m

$984

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Thu 2/5

9:10 am-9:57 pm

2 stops18h 47m

McAllen Miller Intl

Mon 2/9

12:05 pm-8:25 am

2 stops14h 20m

$1,008

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Sat 6/20

6:55 am-9:40 pm

2 stops20h 45m

$916

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Sat 6/20

6:10 pm-7:33 pm

2 stops31h 23m

$930

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Sat 6/20

6:40 am-12:23 pm

3 stops35h 43m

$3,749

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/24

  • Most accurate provider: When it comes to deals on London Heathrow Airport-McAllen flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-McAllen flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-McAllen flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-McAllen flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-McAllen flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Heathrow to McAllen

Have a flexible travel schedule? Discover the best time to fly to McAllen from Heathrow with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to McAllen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to McAllen from London Heathrow?

    If you book a flight to McAllen from London Heathrow, you will be flying to Miller Intl, which is the city’s only airport. McAllen Miller Intl (MFE) is located 2.0 mi from the center of McAllen. There are 0 flights from London Heathrow to Miller Intl per day from 0 different airlines.

  • How long is the flight from London Heathrow Airport to McAllen?

    There are many flights that can get you from London Heathrow Airport to McAllen in 16h 11m. Fly via United Airlines or British Airways to get the fastest option. London Heathrow Airport and McAllen are separated by a distance of 5135 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Heathrow to McAllen that include hotel bookings?

    Yes. In addition to deals on Heathrow to McAllen flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to McAllen?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to McAllen.

  • Can I find deals for business class flights from Heathrow to McAllen?

    Yes. Cheapflights offers flight deals from Heathrow to McAllen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near McAllen?

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

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