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Cheap flights from London Heathrow Airport to McAllen from £914

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — MFE
27 Nov — 4 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Heathrow to McAllen

Enter your travel dates to find the best prices.

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 28 October 2025.

Thu 11/1207:30LHR - MFE
2 stops20h 06mBritish Airways
Thu 18/1216:01MFE - LHR
1 stop11h 59mBritish Airways
Deal found 27/10£914
Thu 11/1211:10LHR - MFE
2 stops16h 49mAir Canada
Thu 18/1207:00MFE - LHR
2 stops18h 10mAir Canada
Deal found 27/10£1,067
Wed 5/1110:00LHR - MFE
1 stop14h 07mUnited Airlines
Sun 9/1117:00MFE - LHR
1 stop32h 30mUnited Airlines
Deal found 26/10£1,105
Wed 5/1113:00LHR - MFE
2 stops16h 59mDelta
Sun 9/1112:44MFE - LHR
2 stops15h 31mDelta
Deal found 26/10£1,108
Thu 11/1206:00LHR - MFE
3 stops35h 24mMultiple Airlines
Thu 18/1222:27MFE - LHR
2 stops26h 43mMultiple Airlines
Deal found 27/10£1,361

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 28 October 2025.

Round-trip from

£914

Popular in

July

Cheapest in

March

Average price

£782
British Airways
  • British Airways
  • 11/12-18/12
  • 3 total stops
  • 32h 05m total
  • London to McAllen
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£120 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£35 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 28 October 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

Thu 11/12

07:30-21:36

2 stops20h 06m

McAllen Miller Intl

Thu 18/12

16:01-10:00

1 stop11h 59m

£914

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Thu 11/12

11:10-21:59

2 stops16h 49m

McAllen Miller Intl

Thu 18/12

07:00-07:10

2 stops18h 10m

£1,067

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Thu 11/12

06:00-11:24

3 stops35h 24m

McAllen Miller Intl

Thu 18/12

22:27-07:10

2 stops26h 43m

£1,361

Flights are sorted by cheapest return flights first.

Deals found on 27/10

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 75% 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 53m.

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 53m.

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 28 October 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
7,481 reviews
Check prices

Overall

6.7

Comfort

6.7

Crew

7.6

Food

6.3

Entertainment

6.4

Boarding

6.9

Reviews

1 / 20
6.0
Good

Roxanne,Sept 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.
British Airways
6.7
Okay
7,481 reviews
British Airways
6.7
Okay
7,481 reviews
Check prices

Overall

6.7

Comfort

6.7

Crew

7.6

Food

6.3

Entertainment

6.4

Boarding

6.9

Reviews

1 / 20
6.0
Good

Roxanne,Sept 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.

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 £1,067, British Airways can have you in McAllen from London Heathrow Airport in 16h 49m. 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 (£618), 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

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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 28 October 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£618Average£728FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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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?

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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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