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Cheap flights from McAllen to London Heathrow Airport from £245

MFE — LHR
9 Oct — 16 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from McAllen to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from McAllen to Heathrow

Wed 16/917:17 -
2 stops38h 33m
Wed 30/911:45 -
2 stops42h 10m
Deal found 9/9£614
Tue 13/1007:00 -
1 stop18h 55m
Thu 22/1015:00 -
2 stops36h 58m
Deal found 6/9£659
Wed 23/916:35 -
1 stop12h 20m
Wed 7/1014:25 -
1 stop15h 37m
Deal found 8/9£659
Tue 15/917:47 -
1 stop13h 03m
Tue 22/908:55 -
1 stop18h 49m
Deal found 8/9£661
Tue 13/1007:00 -
2 stops22h 50m
Thu 22/1017:40 -
2 stops34h 18m
Deal found 6/9£671
Tue 13/1016:37 -
1 stop15h 48m
Thu 22/1008:55 -
1 stop21h 07m
Deal found 6/9£676
Mon 5/1007:00 -
1 stop18h 45m
Mon 12/1015:30 -
2 stops36h 28m
Deal found 6/9£678
Tue 20/1007:00 -
2 stops17h 30m
Tue 27/1010:00 -
1 stop16h 58m
Deal found 5/9£679

Find flight deals from McAllen to Heathrow

Round-trip from

£576

One-way from

£245

Popular in

March

Cheapest in

April

Average price

£684
United Airlines
  • United Airlines
  • 30/1-1/2
  • 4 total stops
  • 73h 34m total
  • McAllen to London
Search Deals
United Airlines
  • United Airlines
  • 13/2-31/12
  • 2 total stops
  • 22h 05m total
  • McAllen to London
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£38 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (£40 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from McAllen to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Sat 13/2

14:06-06:50

1 stop34h 44m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£246

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Sat 13/2

07:00-06:30

3 stops41h 30m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£252

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Sat 31/10

17:15-07:50

1 stop33h 35m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£351

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Sat 28/11

12:47-12:50

3 stops42h 03m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£357
Fastest return journey

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Wed 16/9

16:35-12:50

1 stop14h 15m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£422

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Wed 16/9

07:00-05:55

2 stops16h 55m

London Heathrow

Wed 31/12

00:00-17:00

Nonstop0h 00m

£422

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Tue 20/10

07:00-06:30

2 stops17h 30m

London Heathrow

Tue 27/10

10:00-21:58

1 stop16h 58m

£679

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Thu 22/10

17:20-11:35

1 stop12h 15m

London Heathrow

Thu 29/10

06:35-21:58

2 stops20h 23m

£692

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Thu 8/10

07:00-11:50

2 stops22h 50m

London Heathrow

Thu 15/10

15:00-21:58

2 stops36h 58m

£702

McAllenLondon

MFE McAllen Miller Intl - LHR London Heathrow

MFELHR

McAllen Miller Intl

Sun 10/1

10:45-12:00

1 stop19h 15m

London Heathrow

Sun 17/1

14:45-23:33

1 stop14h 48m

£710

Flights are sorted by cheapest return flights first.

Deals found on 5/9

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

Best time to book a flight from McAllen to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from McAllen with our price prediction graph.
Estimated return price

Related info for your journey

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

    McAllen Miller Intl (MFE) is the airport you will fly out of if you book a flight from McAllen to London Heathrow. You should not have trouble finding flights to London Heathrow from Miller Intl; the airport handles an average of 0 outbound flights to London Heathrow per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the McAllen airport to London Heathrow. It is only a 2.0 mi journey to Miller Intl (MFE) from McAllen’s city center.

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

    United Airlines and Iberia can get you from McAllen to London Heathrow Airport in just under 17h 30m. Your travel time can differ by up to 1h 45m. The distance between McAllen and London Heathrow Airport is about 5135 mi. This flight may include one or multiple stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from McAllen to Heathrow 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

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Milton Keynes
Luton
Gatwick
Wembley
Slough
Ilford
Hayes
Northampton
Croydon
Colchester
Eastbourne
Brentford
Enfield
Southend-on-Sea
Barnet
Salisbury
Watford
Southall
Swindon

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Millions of users choose and trust Cheapflights to book the best flight deals from McAllen to Heathrow for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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Cheapflights does show flights with no change fees to all users. To see these options for flights from McAllen to Heathrow, users can toggle the no change fees filter when performing a flight search.

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

Yes! Start tracking prices for McAllen to Heathrow flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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