Find flights
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to McAllen from £445

LHR — MFE
24 Nov — 1 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to McAllen

Enter your travel dates to find the best prices.

Best flights from Heathrow to McAllen

Mon 1/207:50 -
2 stops16h 18m
Sun 28/217:15 -
1 stop32h 25m
Deal found 20/10£986
Wed 14/410:00 -
1 stop13h 45m
Sat 17/409:40 -
2 stops15h 35m
Deal found 20/10£1,079

Find flight deals from Heathrow to McAllen

Round-trip from

£929

One-way from

£445
Finnair
  • Finnair
  • 1/2-28/2
  • 4 total stops
  • 49h 57m total
  • London to McAllen
Search Deals
27/1-31/12
  • 27/1-31/12
  • 3 total stops
  • 47h 38m total
  • London to McAllen
Search Deals

Cheapflights Fare Finder

 
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

LondonMcAllen

LHR London Heathrow - MFE McAllen Miller Intl

LHRMFE

London Heathrow

Sat 30/1

14:45-13:58

2 stops29h 13m

McAllen Miller Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£600

LondonMcAllen

LHR London Heathrow - MFE McAllen Miller Intl

LHRMFE

London Heathrow

Mon 25/1

07:30-23:15

2 stops21h 45m

McAllen Miller Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£645

LondonMcAllen

LHR London Heathrow - MFE McAllen Miller Intl

LHRMFE

London Heathrow

Wed 6/1

18:00-23:15

2 stops35h 15m

McAllen Miller Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£663

LondonMcAllen

LHR London Heathrow - MFE McAllen Miller Intl

LHRMFE

London Heathrow

Tue 26/1

10:00-11:27

1 stop31h 27m

McAllen Miller Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£669
Fastest return journey

LondonMcAllen

LHR London Heathrow - MFE McAllen Miller Intl

LHRMFE

London Heathrow

Wed 6/1

12:05-21:43

1 stop15h 38m

McAllen Miller Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£672

LondonMcAllen

LHR London Heathrow - MFE McAllen Miller Intl

LHRMFE

London Heathrow

Mon 1/2

07:50-18:08

2 stops16h 18m

McAllen Miller Intl

Sun 28/2

17:15-07:40

1 stop32h 25m

£986

LondonMcAllen

LHR London Heathrow - MFE McAllen Miller Intl

LHRMFE

London Heathrow

Wed 14/4

10:00-17:45

1 stop13h 45m

McAllen Miller Intl

Sat 17/4

09:40-07:15

2 stops15h 35m

£1,079

Flights are sorted by cheapest return flights first.

Deals found on 21/10

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

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?

Dallas (DFW) – chosen by Cheapflights users on 64% 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?

Houston (IAH) is the most affordable one-stop option, with an average return flight price of £767.

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

Flights via Dallas (DFW) have the shortest average one-way travel time for one-stop routes: 14h 16m.

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

Flights via Dallas (DFW) offer the fastest connection on this route, with an average stopover time of 2h 02m.

Reviews of airlines servicing McAllen

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
8,267 reviews
Check prices

Overall

6.7

Boarding

7.0

Entertainment

6.5

Comfort

6.8

Crew

7.7

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
8,267 reviews
British Airways
6.7
Okay
8,267 reviews
Check prices

Overall

6.7

Boarding

7.0

Entertainment

6.5

Comfort

6.8

Crew

7.7

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

  • 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 £986, United Airlines can have you in McAllen from London Heathrow Airport in 16h 18m. 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 (£738), 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

Top airline flying from Heathrow to McAllen

AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£738Average£890FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.