Cheap flights from McAllen to London from £336

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 13/3. Fares are subject to change and may not be available on all flights or dates of travel.
MFE — LON
15 Oct — 22 Oct1
1 adult
1 adult, Economy

Cheap 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 15 September 2025.

Round-trip from

£462

One-way from

£336

Popular in

June

Cheapest in

November

Average price

£557
KLM
  • KLM
  • 30/10-6/11
  • 4 total stops
  • 32h 43m total
  • McAllen to London
United Airlines
  • United Airlines
  • 13/3
  • 1 total stop
  • 33h 15m total
  • McAllen to London
Highest demand for flights based on searches. 19% potential increase in price (£115 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).
Average for round-trip flights in September 2025

Find flight deals from McAllen to London

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 15 September 2025.

Thu 30/1012:31MFE - LHR
2 stops15h 14mKLM
Thu 6/1112:30LHR - MFE
2 stops17h 29mKLM
Deal found 14/9£462
Wed 29/1007:00MFE - LHR
1 stop19h 30mUnited Airlines
Wed 5/1112:05LHR - MFE
1 stop31h 25mUnited Airlines
Deal found 14/9£481
Thu 30/1014:06MFE - LHR
1 stop12h 24mUnited Airlines
Thu 6/1109:30LHR - MFE
2 stops18h 29mUnited Airlines
Deal found 14/9£491
Thu 30/1012:31MFE - LCY
2 stops23h 04mDelta
Thu 6/1107:45LCY - MFE
2 stops22h 14mDelta
Deal found 14/9£495
Thu 25/1216:59MFE - LHR
1 stop12h 41mBritish Airways
Thu 8/118:10LHR - MFE
2 stops30h 06mBritish Airways
Deal found 14/9£605
Thu 30/1017:00MFE - LCY
2 stops18h 40mMultiple Airlines
Thu 6/1109:40LCY - MFE
3 stops29h 14mMultiple Airlines
Deal found 14/9£620
Fri 19/909:49MFE - LHR
2 stops18h 51mUnited Airlines
Sun 21/917:40LHR - MFE
2 stops34h 07mUnited Airlines
Deal found 15/9£748
Fri 19/912:37MFE - LHR
2 stops20h 38mBritish Airways
Sun 21/912:00LHR - MFE
1 stop13h 40mBritish Airways
Deal found 15/9£753
Fri 19/910:53MFE - LHR
1 stop16h 07mIberia
Sun 21/910:30LHR - MFE
1 stop19h 49mIberia
Deal found 15/9£756
Thu 25/1212:34MFE - LHR
2 stops19h 16mKLM
Thu 8/110:10LHR - MFE
2 stops19h 57mKLM
Deal found 14/9£779
Thu 25/1212:34MFE - LCY
2 stops22h 01mKLM
Thu 8/109:20LCY - MFE
2 stops20h 47mKLM
Deal found 14/9£803
Thu 25/1209:45MFE - LCY
3 stops21h 05mMultiple Airlines
Thu 8/109:40LCY - MFE
2 stops18h 17mMultiple Airlines
Deal found 14/9£1,006

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 15 September 2025.
Use the filters below to find and compare flights from McAllen to London that are best for you.

Fly from

McAllen

Fly to

London

Route

Depart

Return

Price

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Thu 30/10

12:31-08:45

2 stops15h 14m

London Heathrow

Thu 6/11

12:30-23:59

2 stops17h 29m

£462

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Wed 29/10

07:00-07:30

1 stop19h 30m

London Heathrow

Wed 5/11

12:05-13:30

1 stop31h 25m

£481

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Thu 30/10

14:06-07:30

1 stop12h 24m

London Heathrow

Thu 6/11

09:30-21:59

2 stops18h 29m

£491

McAllenLondon

MFE - LCY

MFELCY

McAllen Miller Intl

Thu 30/10

12:31-16:35

2 stops23h 04m

London City

Thu 6/11

07:45-23:59

2 stops22h 14m

£495

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Fri 13/3

19:27-10:15

1 stop33h 48m

London Heathrow

Mon 6/4

15:30-21:30

2 stops36h 00m

£568

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Thu 25/12

16:59-11:40

1 stop12h 41m

London Heathrow

Thu 8/1

18:10-18:16

2 stops30h 06m

£605

McAllenLondon

MFE - LCY

MFELCY

McAllen Miller Intl

Thu 30/10

17:00-16:40

2 stops18h 40m

London City

Thu 6/11

09:40-08:54

3 stops29h 14m

£620

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Fri 13/3

09:40-10:45

2 stops20h 05m

London Heathrow

Mon 6/4

15:50-16:00

2 stops30h 10m

£689

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Thu 25/12

12:34-13:50

2 stops19h 16m

London Heathrow

Thu 8/1

10:10-00:07

2 stops19h 57m

£779

McAllenLondon

MFE - LCY

MFELCY

McAllen Miller Intl

Thu 25/12

12:34-16:35

2 stops22h 01m

London City

Thu 8/1

09:20-00:07

2 stops20h 47m

£803

Flights are sorted by cheapest return flights first.

Deals found on 13/9

Showing 1-10 of 15 results
1
2

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, January is the cheapest month in which you can book a flight from McAllen to London (average of £112). Flying from McAllen to London in August is currently the most expensive (average of £164). 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 KLM, United Airlines, and Delta fly from McAllen to London in about 15h 14m. The time it takes to get you to your destination can typically vary by up to 7h 50m. 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?

  • 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, January is the cheapest month in which you can book a flight from McAllen to London (average of £112). Flying from McAllen to London in August is currently the most expensive (average of £164). 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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