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Cheap flights from London to McAllen from £540

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 27/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — MFE
28 Jun — 5 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to McAllen

Enter your travel dates to find the best prices.

Cheapest flights from London to McAllen
Explore the most affordable flight options available from London to McAllen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 May 2026.

Thu 12/1110:00
LHR
-
MFE
1 stop15h 20m
United Airlines
Mon 16/1114:15
MFE
-
LHR
1 stop11h 15m
United Airlines
Deal found 24/5£957
Fri 13/1107:50
LCY
-
MFE
2 stops19h 34m
British Airways
Tue 17/1111:56
MFE
-
LCY
2 stops20h 09m
British Airways
Deal found 27/5£982

Find flight deals from London to McAllen

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) 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 29 May 2026.

Round-trip from

£957

One-way from

£540

Popular in

December

Cheapest in

September

Average price

£780
United Airlines
  • United Airlines
  • 12/11-16/11
  • 4 total stops
  • 31h 10m total
  • London to McAllen
Search Deals
27/6
  • 27/6
  • 3 total stops
  • 34h 28m total
  • London to McAllen
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£34 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 May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London 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 29 May 2026.
Use the filters below to find and compare flights from London 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 12/11

09:10-19:20

2 stops16h 10m

McAllen Miller Intl

Mon 16/11

09:40-06:40

2 stops15h 00m

£957

LondonMcAllen

LCY - MFE

LCYMFE

London City

Fri 13/11

07:50-16:14

2 stops38h 24m

McAllen Miller Intl

Tue 17/11

14:49-14:05

2 stops17h 16m

£982
Cheapest one-way

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Sat 27/6

07:40-12:08

3 stops34h 28m

£540

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Wed 17/6

16:50-11:33

3 stops48h 43m

£595

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Sun 7/6

22:05-20:45

3 stops52h 40m

£750

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Tue 21/7

14:10-12:09

2 stops51h 59m

£770
Fastest single journey

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Sun 7/6

13:40-21:51

1 stop14h 11m

£778

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Sat 20/6

10:00-21:51

1 stop17h 51m

£778

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Tue 21/7

08:55-21:46

1 stop18h 51m

£859

LondonMcAllen

LCY - MFE

LCYMFE

London City

Wed 17/6

09:15-11:33

2 stops56h 18m

£874

Flights are sorted by cheapest return flights first.

Deals found on 27/5

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Best time to book a flight from London to McAllen

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

What’s the top stopover airport for flights from London to McAllen?

Share of one-stop return flights from London to McAllen chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Dallas (DFW) – chosen by Cheapflights users on 66% of one-stop itineraries from London to McAllen on Cheapflights.

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

Average return fare for one-stop flights from London 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 £838.

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

Shortest average travel time for one-stop one-way flights from London 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 20m.

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

Average stopover duration for one-stop one-way flights from London 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 53m.

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 29 May 2026.
Read through reviews of airlines operating flights from London to McAllen, such as British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
8,008 reviews
Check prices

Crew

7.7

Comfort

6.8

Overall

6.7

Boarding

6.9

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
8,008 reviews
British Airways
6.7
Okay
8,008 reviews
Check prices

Crew

7.7

Comfort

6.8

Overall

6.7

Boarding

6.9

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 London 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?

    If you book a flight to McAllen from London, you will be flying to Miller Intl, which is the city’s only airport. McAllen Miller Intl (MFE) is located 2.0 mi from the center of McAllen. There are 0 flights from London to Miller Intl per day from 1 airline.

  • How long is the flight from London to McAllen?

    For as low as £957, United Airlines can have you in McAllen from London in 16h 10m. The distance between London and McAllen is about 5135 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    According to our current data, British Airways (£614), offers the cheapest pricing from London to McAllen. British Airways is currently priced 31% below the average price you’ll pay for this route.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from London 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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Alternative routes for London 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 London to McAllen

Discover the top airline that operate flights from London 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 29 May 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£614Average£736FlexibilityNo 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 London to McAllen?

Deals for London 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 London to McAllen?

Cheapflights simply makes it quick and affordable to book flights from London to McAllen by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from London to McAllen with no change fees?

Yes, we can. To see specific flights from London to McAllen with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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