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Cheap flights from London Heathrow Airport to McAllen from £695

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 22/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — MFE
24 May — 31 May1
1 adult
1 adult, Economy, 0 bags

Cheap 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 24 April 2026.

Thu 24/906:10
LHR
-
MFE
2 stops21h 37m
British Airways
Mon 28/916:19
MFE
-
LHR
1 stop14h 31m
British Airways
Deal found 21/4£924
Thu 24/914:05
LHR
-
MFE
2 stops48h 48m
Air Canada
Mon 28/909:40
MFE
-
LHR
2 stops14h 55m
Air Canada
Deal found 20/4£965
Fri 15/512:55
LHR
-
MFE
1 stop15h 45m
Multiple Airlines
Fri 22/509:22
MFE
-
LHR
2 stops15h 03m
Multiple Airlines
Deal found 19/4£970
Fri 15/509:30
LHR
-
MFE
2 stops18h 18m
Lufthansa
Fri 22/509:43
MFE
-
LHR
2 stops17h 17m
Lufthansa
Deal found 19/4£982
Wed 29/410:00
LHR
-
MFE
1 stop13h 53m
Lufthansa
Wed 6/512:05
MFE
-
LHR
1 stop13h 40m
Lufthansa
Deal found 21/4£1,145
Wed 29/411:30
LHR
-
MFE
2 stops18h 29m
Iberia
Wed 6/510:32
MFE
-
LHR
1 stop15h 23m
Iberia
Deal found 21/4£1,176

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 24 April 2026.

Round-trip from

£924

One-way from

£695

Popular in

July

Cheapest in

September

Average price

£1,002
British Airways
  • British Airways
  • 24/9-28/9
  • 3 total stops
  • 36h 08m total
  • London to McAllen
Search Deals
22/8
  • 22/8
  • 3 total stops
  • 52h 18m total
  • London to McAllen
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£123 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£33 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
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 24 April 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 return flight
Fastest return journey

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Thu 24/9

06:10-21:47

2 stops21h 37m

McAllen Miller Intl

Mon 28/9

16:19-12:50

1 stop14h 31m

£924

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Thu 24/9

14:05-08:53

2 stops48h 48m

McAllen Miller Intl

Mon 28/9

09:40-06:35

2 stops14h 55m

£965
Cheapest one-way

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Sat 22/8

21:25-19:43

3 stops52h 18m

£695
Fastest single journey

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Sat 20/6

07:30-21:51

2 stops20h 21m

£710

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Sat 22/8

07:25-21:57

2 stops20h 32m

£710

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Sat 20/6

06:40-11:55

3 stops35h 15m

£2,404

Flights are sorted by cheapest return flights first.

Deals found on 19/4

Sorted by cheapest first

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 69% of one-stop itineraries from London Heathrow Airport to McAllen on Cheapflights.

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

Average return fare for one-stop flights from London Heathrow Airport to McAllen, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Houston (IAH) is the most affordable one-stop option, with an average return flight price of £875.

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: 14h 18m.

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 Dallas (DFW) offer the fastest connection on this route, with an average stopover time of 2h 06m.

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 24 April 2026.
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
7,910 reviews
Check prices

Boarding

6.9

Crew

7.7

Comfort

6.8

Overall

6.7

Entertainment

6.4

Food

6.4

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
7,910 reviews
British Airways
6.7
Okay
7,910 reviews
Check prices

Boarding

6.9

Crew

7.7

Comfort

6.8

Overall

6.7

Entertainment

6.4

Food

6.4

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 £924, British Airways can have you in McAllen from London Heathrow Airport in 21h 37m. London Heathrow Airport and McAllen are separated by a distance of 5135 mi.

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

    According to our current data, British Airways (£611), 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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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 24 April 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£611Average£733FlexibilityNo 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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