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$456+ Cheap flights from McAllen (MFE) to London (LON)

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 3/13. Fares are subject to change and may not be available on all flights or dates of travel.
MFE — LON
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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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 September 15, 2025.

Round-trip from

$626
(KLM)

One-way from

$456
(United Airlines)

Popular in

June

Cheapest in

November

Average price

$755
From McAllen Miller Intl to London (LON)
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One-way flight from McAllen Miller Intl to London (LON)
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Highest demand for flights based on searches. 19% potential increase in price ($211 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 15, 2025.

This KLM deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3012:31 pmMFE - LHR
2 stops15h 14mKLM
Thu 11/612:30 pmLHR - MFE
2 stops17h 29mKLM
Deal found 9/14$626
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/297:00 amMFE - LHR
1 stop19h 30mUnited Airlines
Wed 11/512:05 pmLHR - MFE
1 stop31h 25mUnited Airlines
Deal found 9/14$652
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/302:06 pmMFE - LHR
1 stop12h 24mUnited Airlines
Thu 11/69:30 amLHR - MFE
2 stops18h 29mUnited Airlines
Deal found 9/14$666
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3012:31 pmMFE - LCY
2 stops23h 04mDelta
Thu 11/67:45 amLCY - MFE
2 stops22h 14mDelta
Deal found 9/14$672
This Ovago deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/254:59 pmMFE - LHR
1 stop12h 41mBritish Airways
Thu 1/86:10 pmLHR - MFE
2 stops30h 06mBritish Airways
Deal found 9/14$820
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/305:00 pmMFE - LCY
2 stops18h 40mMultiple Airlines
Thu 11/69:40 amLCY - MFE
3 stops29h 14mMultiple Airlines
Deal found 9/14$841
This KLM deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2512:34 pmMFE - LHR
2 stops19h 16mKLM
Thu 1/810:10 amLHR - MFE
2 stops19h 57mKLM
Deal found 9/14$1,057
This KLM deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2512:34 pmMFE - LCY
2 stops22h 01mKLM
Thu 1/89:20 amLCY - MFE
2 stops20h 47mKLM
Deal found 9/14$1,089
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/259:45 amMFE - LCY
3 stops21h 05mMultiple Airlines
Thu 1/89:40 amLCY - MFE
2 stops18h 17mMultiple Airlines
Deal found 9/14$1,365
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/302:14 pmMFE - LGW
1 stop35h 56mMultiple Airlines
Thu 11/62:00 pmLGW - MFE
2 stops55h 02mMultiple Airlines
Deal found 9/14$1,989
This Mytrip deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/309:27 pmMFE - LHR
2 stops28h 43mMultiple Airlines
Thu 11/69:00 amLHR - MFE
3 stops33h 07mMultiple Airlines
Deal found 9/14$2,424

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated September 15, 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 10/30

12:31 pm-8:45 am

2 stops15h 14m

London Heathrow

Thu 11/6

12:30 pm-11:59 pm

2 stops17h 29m

$626

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Wed 10/29

7:00 am-7:30 am

1 stop19h 30m

London Heathrow

Wed 11/5

12:05 pm-1:30 pm

1 stop31h 25m

$652

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Thu 10/30

2:06 pm-7:30 am

1 stop12h 24m

London Heathrow

Thu 11/6

9:30 am-9:59 pm

2 stops18h 29m

$666

McAllenLondon

MFE - LCY

MFELCY

McAllen Miller Intl

Thu 10/30

12:31 pm-4:35 pm

2 stops23h 04m

London City

Thu 11/6

7:45 am-11:59 pm

2 stops22h 14m

$672

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Fri 3/13

7:27 pm-10:15 am

1 stop33h 48m

London Heathrow

Mon 4/6

3:30 pm-9:30 pm

2 stops36h 00m

$771

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Thu 12/25

4:59 pm-11:40 am

1 stop12h 41m

London Heathrow

Thu 1/8

6:10 pm-6:16 pm

2 stops30h 06m

$820

McAllenLondon

MFE - LCY

MFELCY

McAllen Miller Intl

Thu 10/30

5:00 pm-4:40 pm

2 stops18h 40m

London City

Thu 11/6

9:40 am-8:54 am

3 stops29h 14m

$841

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Fri 3/13

9:40 am-10:45 am

2 stops20h 05m

London Heathrow

Mon 4/6

3:50 pm-4:00 pm

2 stops30h 10m

$934

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Thu 12/25

12:34 pm-1:50 pm

2 stops19h 16m

London Heathrow

Thu 1/8

10:10 am-12:07 am

2 stops19h 57m

$1,057

McAllenLondon

MFE - LCY

MFELCY

McAllen Miller Intl

Thu 12/25

12:34 pm-4:35 pm

2 stops22h 01m

London City

Thu 1/8

9:20 am-12:07 am

2 stops20h 47m

$1,089

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

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 round-trip 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, November is the cheapest month in which you can book a flight from McAllen to London (average of $661). Flying from McAllen to London in June is currently the most expensive (average of $1,097). 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.

What is the cheapest time of day to fly from MFE to LON?

Find hourly flight availability from McAllen to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 35% on flights from McAllen to London by exploring options for tickets in the morning.

How much does it cost to fly round-trip from McAllen to London?

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated September 15, 2025.
Read through reviews of airlines operating flights from McAllen to London, such as United Airlines and British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,929 reviews

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,929 reviews
United Airlines
7.4
Good
8,929 reviews

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
British Airways
6.7
Okay
7,361 reviews
United Airlines
7.4
Good
8,929 reviews

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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) is the airport you will fly out of if you book a flight from McAllen to London. You should not have trouble finding flights to London from Miller Intl; the airport handles an average of 0 outbound flights to London per day. You should also have plenty of airline options to choose from since 3 airlines have flights from the McAllen airport to London. 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?

    Departing from McAllen to London will take you 15h 14m. McAllen and London are separated by a distance of 5135 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from McAllen to London round-trip?

    Flying on British Airways is currently your cheapest option to London, with prices starting at $680. Additional round-trip tickets that might be worth considering are offered by United Airlines and American Airlines, with the lowest prices starting at $682 and $880, respectively. British Airways is 20% cheaper than the average price of flights available within the next 90 days to this destination.

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

    While some choose either McAllen Miller Intl - London City or McAllen Miller Intl - London Gatwick, McAllen Miller Intl - London Heathrow is the most popular route 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 vacation 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, November is the cheapest month in which you can book a flight from McAllen to London (average of $661). Flying from McAllen to London in June is currently the most expensive (average of $1,097). 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

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Hayes
Southend-on-Sea
Harrow
Canterbury
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Eastleigh
Dartford
Dover
Winchester
Orpington
Gatwick
Borehamwood
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Wembley
Folkestone
Chichester
Eastbourne
Sutton

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Alternative routes for McAllen to London

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Top 3 airlines flying from McAllen to London

Discover the top 3 airlines that operate flights from McAllen to London. 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 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$680Average$1,008FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$682Average$1,070FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$880Average$1,086FlexibilityNo cancel feeOn-time71%

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