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Cheap flights from London Heathrow Airport to McAllen from £694

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — MFE
27 Aug — 3 Sep1
1 adult

Cheap 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 22 August 2025.

Round-trip from

£694

Popular in

July

Cheapest in

March

Average price

£867
American Airlines
  • American Airlines
  • 8/11-12/11
  • 4 total stops
  • 39h 11m total
  • London to McAllen
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£117 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£34 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
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Find 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 22 August 2025.

Sat 8/1108:35LHR - MFE
2 stops20h 44mAmerican Airlines
Wed 12/1109:43MFE - LHR
2 stops18h 27mAmerican Airlines
Deal found 21/8£694
Wed 5/1108:20LHR - MFE
1 stop14h 02mBritish Airways
Sun 9/1119:21MFE - LHR
1 stop30h 54mBritish Airways
Deal found 19/8£724
Fri 14/1112:05LHR - MFE
1 stop15h 54mLufthansa
Sat 29/1114:06MFE - LHR
1 stop14h 09mLufthansa
Deal found 20/8£735
Sat 8/1110:00LHR - MFE
1 stop16h 08mUnited Airlines
Wed 12/1114:06MFE - LHR
1 stop11h 24mUnited Airlines
Deal found 21/8£737
Wed 5/1109:10LHR - MFE
2 stops16h 58mUnited Airlines
Sun 9/1112:15MFE - LHR
1 stop13h 15mUnited Airlines
Deal found 19/8£740
Wed 5/1112:10LHR - MFE
2 stops17h 09mAmerican Airlines
Sun 9/1109:43MFE - LHR
2 stops14h 32mAmerican Airlines
Deal found 19/8£754

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 22 August 2025.
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

Sat 8/11

08:35-23:19

2 stops20h 44m

McAllen Miller Intl

Wed 12/11

09:43-10:10

2 stops18h 27m

£694

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Fri 14/11

09:30-21:59

2 stops18h 29m

McAllen Miller Intl

Sat 29/11

17:00-10:15

1 stop11h 15m

£718

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Wed 5/11

08:20-16:22

1 stop14h 02m

McAllen Miller Intl

Sun 9/11

19:21-08:15

1 stop30h 54m

£724

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Fri 14/11

12:05-21:59

1 stop15h 54m

McAllen Miller Intl

Sat 29/11

14:06-10:15

1 stop14h 09m

£735

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Sat 8/11

10:00-20:08

1 stop16h 08m

McAllen Miller Intl

Wed 12/11

14:06-07:30

1 stop11h 24m

£737

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Fri 14/11

13:25-08:54

2 stops25h 29m

McAllen Miller Intl

Sat 29/11

07:00-06:30

2 stops17h 30m

£740

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Wed 5/11

09:10-20:08

2 stops16h 58m

McAllen Miller Intl

Sun 9/11

12:15-07:30

1 stop13h 15m

£740

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Wed 5/11

12:10-23:19

2 stops17h 09m

McAllen Miller Intl

Sun 9/11

09:43-06:15

2 stops14h 32m

£754

Flights are sorted by cheapest return flights first.

Deals found on 21/8

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 return 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.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to McAllen

What’s the top stopover airport for flights from London Heathrow Airport to McAllen?

Share of one-stop return flights from London Heathrow Airport to McAllen chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Dallas (DFW) – chosen by Cheapflights users on 74% of one-stop itineraries from London Heathrow Airport to McAllen on Cheapflights.

What’s the fastest stopover option from London Heathrow Airport to McAllen?

Shortest average travel time for one-stop one-way flights from London Heathrow Airport to McAllen, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Dallas (DFW) have the shortest average one-way travel time for one-stop routes: 13h 50m.

What’s the fastest stopover option from London Heathrow Airport to McAllen?

Shortest average travel time for one-stop one-way flights from London Heathrow Airport to McAllen, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Dallas (DFW) have the shortest average one-way travel time for one-stop routes: 13h 50m.

Which airport typically offers the quickest stopover for flights from London Heathrow Airport to McAllen?

Average stopover duration for one-stop one-way flights from London Heathrow Airport to McAllen, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Houston (IAH) offer the fastest connection on this route, with an average stopover time of 1h 40m.

Reviews of airlines servicing McAllen

Get insights into the airlines that provide service to McAllen. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to McAllen. Reviews last updated 22 August 2025.
Read reviews from past customers who have flown with British Airways from London Heathrow Airport to McAllen. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,292 reviews
Check prices

Entertainment

6.4

Comfort

6.7

Food

6.3

Boarding

6.9

Crew

7.6

Overall

6.7

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.
British Airways
6.7
Okay
7,292 reviews
British Airways
6.7
Okay
7,292 reviews
Check prices

Entertainment

6.4

Comfort

6.7

Food

6.3

Boarding

6.9

Crew

7.6

Overall

6.7

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.

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?

    Located just 2.0 mi from the city center, McAllen Miller Intl is the airport most travelers will use when flying to McAllen from London Heathrow. Booking flights from London Heathrow to Miller Intl (MFE) should be relatively easy as there are 0 daily inbound flights from London Heathrow from 1 airline.

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

    For as low as £724, American Airlines can have you in McAllen from London Heathrow Airport in 14h 02m. London Heathrow Airport and McAllen are separated by a distance of 5135 mi. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from London Heathrow Airport to McAllen round-trip?

    According to our current data, British Airways (£681), offers the cheapest pricing from London Heathrow Airport to McAllen.

  • 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 holiday 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Heathrow to McAllen

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Heathrow to McAllen

Discover the top airline that operate flights from Heathrow to McAllen. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 22 August 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£681Average£750FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to McAllen?

Deals for Heathrow to McAllen flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to McAllen?

Cheapflights helps you find that perfect flight to McAllen from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Heathrow to McAllen with no change fees?

Need flexible booking options for your flight to McAllen from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to McAllen become cheaper?

Of course! You can now track prices for flights from Heathrow to McAllen and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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