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Cheap flights from McAllen to London from £245

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 16/9. Fares are subject to change and may not be available on all flights or dates of travel.
MFE — LON
26 May — 2 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from McAllen to London

Enter your travel dates to find the best prices.

Cheapest flights from McAllen to London
Explore the most affordable flight options available from McAllen to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 April 2026.

Wed 23/911:04
MFE
-
LHR
1 stop16h 01m
Iberia
Wed 7/1011:30
LHR
-
MFE
2 stops18h 46m
Iberia
Deal found 24/4£640
Wed 16/907:00
MFE
-
LHR
1 stop18h 45m
United Airlines
Wed 30/912:05
LHR
-
MFE
2 stops29h 11m
United Airlines
Deal found 25/4£655
Sat 12/917:15
MFE
-
LHR
1 stop32h 30m
United Airlines
Tue 22/910:25
LHR
-
MFE
2 stops17h 32m
United Airlines
Deal found 21/4£657
Wed 23/914:05
MFE
-
LHR
1 stop15h 30m
United Airlines
Wed 7/1010:00
LHR
-
MFE
1 stop15h 22m
United Airlines
Deal found 22/4£660
Wed 16/905:00
MFE
-
LHR
2 stops19h 35m
Air Canada
Wed 30/917:40
LHR
-
MFE
2 stops34h 18m
Air Canada
Deal found 25/4£662
Wed 16/920:01
MFE
-
LHR
1 stop12h 24m
British Airways
Wed 30/908:55
LHR
-
MFE
1 stop18h 52m
British Airways
Deal found 21/4£663
Sat 23/517:36
MFE
-
LGW
1 stop34h 24m
Multiple Airlines
Sun 31/514:00
LGW
-
MFE
1 stop23h 59m
Multiple Airlines
Deal found 21/4£676
Fri 16/1013:51
MFE
-
LHR
1 stop16h 59m
Iberia
Tue 20/1011:30
LHR
-
MFE
2 stops18h 46m
Iberia
Deal found 22/4£679
Thu 15/1012:00
MFE
-
LHR
1 stop17h 35m
United Airlines
Wed 21/1006:55
LHR
-
MFE
2 stops21h 03m
United Airlines
Deal found 22/4£683
Fri 16/1007:00
MFE
-
LHR
2 stops17h 30m
United Airlines
Tue 20/1007:25
LHR
-
MFE
2 stops20h 33m
United Airlines
Deal found 22/4£686
Fri 22/508:49
MFE
-
LGW
1 stop19h 11m
Multiple Airlines
Sun 31/514:00
LGW
-
MFE
1 stop23h 59m
Multiple Airlines
Deal found 22/4£688
Sat 23/517:36
MFE
-
LGW
1 stop34h 24m
Multiple Airlines
Tue 2/614:00
LGW
-
MFE
1 stop33h 28m
Multiple Airlines
Deal found 21/4£693

Find flight deals from McAllen to London

Discover tips and strategies to find the most affordable flight options for your journey from McAllen (MFE) to London (LON). 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 26 April 2026.

Round-trip from

£640

One-way from

£245

Popular in

June

Cheapest in

January

Average price

£754
Iberia
  • Iberia
  • 23/9-7/10
  • 3 total stops
  • 34h 47m total
  • McAllen to London
Search Deals
British Airways
  • British Airways
  • 16/9
  • 1 total stop
  • 12h 24m total
  • McAllen to London
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£104 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£21 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 McAllen to London 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 26 April 2026.
Use the filters below to find and compare flights from McAllen to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Wed 16/9

12:07-11:35

1 stop17h 28m

London Heathrow

Wed 30/9

08:30-11:16

2 stops32h 46m

£656
Fastest return journey

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Mon 14/9

05:00-07:45

1 stop20h 45m

London Heathrow

Tue 22/9

10:00-17:54

1 stop13h 54m

£657

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Sat 12/9

17:15-07:45

1 stop32h 30m

London Heathrow

Tue 22/9

10:00-17:54

1 stop13h 54m

£657

McAllenLondon

MFE - LGW

MFELGW

McAllen Miller Intl

Sat 23/5

17:36-10:00

1 stop34h 24m

London Gatwick

Sun 31/5

14:00-07:59

1 stop23h 59m

£711

McAllenLondon

MFE - LGW

MFELGW

McAllen Miller Intl

Fri 22/5

08:49-10:00

1 stop19h 11m

London Gatwick

Tue 2/6

14:00-17:28

1 stop33h 28m

£720

McAllenLondon

MFE - LGW

MFELGW

McAllen Miller Intl

Sat 23/5

17:36-06:20

2 stops30h 44m

London Gatwick

Tue 2/6

14:00-17:28

1 stop33h 28m

£741

McAllenLondon

MFE - LGW

MFELGW

McAllen Miller Intl

Sun 17/5

18:30-10:45

2 stops34h 15m

London Gatwick

Sun 31/5

14:00-07:59

1 stop23h 59m

£745

McAllenLondon

MFE - LGW

MFELGW

McAllen Miller Intl

Sat 23/5

17:36-10:00

1 stop34h 24m

London Gatwick

Thu 4/6

14:00-07:54

1 stop23h 54m

£754

McAllenLondon

MFE - LGW

MFELGW

McAllen Miller Intl

Fri 22/5

08:49-10:00

1 stop19h 11m

London Gatwick

Fri 5/6

14:00-16:59

1 stop32h 59m

£853

McAllenLondon

MFE - LGW

MFELGW

McAllen Miller Intl

Sun 17/5

18:30-10:45

2 stops34h 15m

London Gatwick

Thu 4/6

14:00-07:54

1 stop23h 54m

£858

Flights are sorted by cheapest return flights first.

Deals found on 24/4

Showing 1-10 of 45 resultsSorted by cheapest first
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Best time to book a flight from McAllen to London

Have a flexible travel schedule? Discover the best time to fly to London from McAllen 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 McAllen to London

What is the cheapest month to book a flight from McAllen to London?

Currently, April is the cheapest month in which you can book a flight from McAllen to London (average of £414). Flying from McAllen to London in June is currently the most expensive (average of £869). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from McAllen to London?

Related info for your journey

Find useful and relevant information for your journey from McAllen to London. 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 from for flights from McAllen to London?

    McAllen Miller Intl (MFE), located 2.0 mi from the city center, is the airport you fly out of when you book flights from McAllen to London. 0 airlines have flights from Miller Intl to London on a regular basis. Booking flights from McAllen Miller Intl to London should not be difficult; the airport handles an average of 0 outbound flights to London per day.

  • How long is the flight from McAllen to London?

    Airlines like United Airlines, Delta, and Iberia fly from McAllen to London in about 17h 28m. The time it takes to get you to your destination can typically vary by up to 21h 47m. The distance between McAllen and London is about 5135 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from McAllen to London?

    When deciding which route to take from McAllen to London consider McAllen Miller Intl - London Heathrow, McAllen Miller Intl - London City or McAllen Miller Intl - London Gatwick as they are the most popular.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from McAllen to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from McAllen to London?

    Currently, April is the cheapest month in which you can book a flight from McAllen to London (average of £414). Flying from McAllen to London in June is currently the most expensive (average of £869). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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