HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
London

$593+ Cheap flights from McAllen (MFE) to London (LON)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
MFE — LON
ago. 31 — sep. 71
dom. 8/31
dom. 9/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from McAllen to London with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 agosto 26, 2025.

Round-trip from

$593
(KLM)

Popular in

June

Cheapest in

March

Average price

$733
From McAllen Miller Intl to London (LON)
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($203 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

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 agosto 26, 2025.

This Delta deal was found by Cheapflights users on 8/26. 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.
mié. 12/35:30 pmMFE - LHR
2 stops38h 20mDelta
dom. 12/711:45 amLHR - MFE
2 stops42h 11mDelta
Deal found 8/26$661
This Delta deal was found by Cheapflights users on 8/26. 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.
mié. 12/35:30 pmMFE - LCY
2 stops41h 05mDelta
dom. 12/71:45 pmLCY - MFE
2 stops40h 11mDelta
Deal found 8/26$686
This Gotogate deal was found by Cheapflights users on 8/23. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/32:18 pmMFE - LHR
1 stop13h 42mBritish Airways
vie. 12/128:20 amLHR - MFE
1 stop18h 04mBritish Airways
Deal found 8/23$738
This Booking.com deal was found by Cheapflights users on 8/25. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/1911:56 amMFE - LHR
1 stop12h 54mBritish Airways
jue. 12/410:15 amLHR - MFE
1 stop17h 21mBritish Airways
Deal found 8/25$749
This United Airlines deal was found by Cheapflights users on 8/23. 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.
mié. 12/312:10 pmMFE - LHR
1 stop13h 20mUnited Airlines
vie. 12/127:40 amLHR - MFE
2 stops20h 19mUnited Airlines
Deal found 8/23$754
This United Airlines deal was found by Cheapflights users on 8/25. 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.
mié. 11/197:00 amMFE - LHR
1 stop18h 30mUnited Airlines
jue. 12/46:30 amLHR - MFE
2 stops21h 29mUnited Airlines
Deal found 8/25$758
This KLM deal was found by Cheapflights users on 8/25. 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.
jue. 11/2012:44 pmMFE - LHR
2 stops14h 16mKLM
jue. 12/412:30 pmLHR - MFE
2 stops17h 26mKLM
Deal found 8/25$771
This Expedia deal was found by Cheapflights users on 8/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/32:42 pmMFE - LHR
1 stop15h 33mBritish Airways
dom. 12/710:15 amLHR - MFE
1 stop18h 41mBritish Airways
Deal found 8/26$789
This United Airlines deal was found by Cheapflights users on 8/25. 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.
mié. 11/197:00 amMFE - LHR
1 stop21h 15mUnited Airlines
vie. 11/282:30 pmLHR - MFE
2 stops37h 29mUnited Airlines
Deal found 8/25$798
This United Airlines deal was found by Cheapflights users on 8/25. 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.
jue. 10/96:55 amMFE - LHR
1 stop18h 45mUnited Airlines
jue. 10/161:40 pmLHR - MFE
1 stop14h 17mUnited Airlines
Deal found 8/25$799
This United Airlines deal was found by Cheapflights users on 8/26. 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.
mié. 12/39:50 amMFE - LHR
2 stops19h 00mUnited Airlines
dom. 12/710:00 amLHR - MFE
1 stop14h 07mUnited Airlines
Deal found 8/26$809
This Iberia deal was found by Cheapflights users on 8/23. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/32:18 pmMFE - LCY
2 stops17h 47mIberia
vie. 12/127:50 amLCY - MFE
2 stops18h 34mIberia
Deal found 8/23$810

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 agosto 26, 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

lun. 1/26

1:00 pm-11:40 am

2 stops16h 40m

London Heathrow

lun. 2/9

8:55 am-12:07 am

2 stops21h 12m

$593

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

mié. 12/3

5:30 pm-1:50 pm

2 stops38h 20m

London Heathrow

dom. 12/7

11:45 am-11:56 pm

2 stops42h 11m

$661

McAllenLondon

MFE - LCY

MFELCY

McAllen Miller Intl

mié. 12/3

5:30 pm-4:35 pm

2 stops41h 05m

London City

dom. 12/7

1:45 pm-11:56 pm

2 stops40h 11m

$686

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

lun. 1/26

6:18 pm-12:15 pm

1 stop11h 57m

London Heathrow

lun. 2/9

7:40 pm-4:21 pm

2 stops26h 41m

$729

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

mié. 12/3

2:18 pm-10:00 am

1 stop13h 42m

London Heathrow

vie. 12/12

8:20 am-8:24 pm

1 stop18h 04m

$738

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

mié. 11/19

11:56 am-6:50 am

1 stop12h 54m

London Heathrow

jue. 12/4

10:15 am-9:36 pm

1 stop17h 21m

$749

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

mié. 12/3

12:10 pm-7:30 am

1 stop13h 20m

London Heathrow

vie. 12/12

7:40 am-9:59 pm

2 stops20h 19m

$754

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

mié. 11/19

7:00 am-7:30 am

1 stop18h 30m

London Heathrow

jue. 12/4

6:30 am-9:59 pm

2 stops21h 29m

$758

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

jue. 11/20

12:44 pm-9:00 am

2 stops14h 16m

London Heathrow

jue. 12/4

12:30 pm-11:56 pm

2 stops17h 26m

$771

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

mié. 12/3

2:42 pm-12:15 pm

1 stop15h 33m

London Heathrow

dom. 12/7

10:15 am-10:56 pm

1 stop18h 41m

$789

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/24

Showing 1-10 of 20 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 $1,098). 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 agosto 26, 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 agosto 26, 2025.
Read through reviews of airlines operating flights from McAllen to London, such as United Airlines, American 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
8,943 reviews

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Overall

7.4

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
8,943 reviews
United Airlines
7.4
Good
8,943 reviews

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Overall

7.4

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??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,943 reviews

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Overall

7.4

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
7,309 reviews
United Airlines
7.4
Good
8,943 reviews

Comfort

7.3

Crew

8.1

Entertainment

7.1

Food

6.6

Boarding

7.7

Overall

7.4

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 11h 57m. 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 $742 and $768, respectively. British Airways is 19% 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 $1,098). 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
Thornton Heath
Southend-on-Sea
Harrow
Canterbury
Croydon
Dartford
Dover
Orpington
Gatwick
Borehamwood
Aylesbury
Chelmsford
Bedford
Wembley
Folkestone
Chichester
Arundel
Eastbourne

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for McAllen to London

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Heathrow flights
Hobby to Heathrow flights
George Bush Intcntl to Heathrow flights
Dallas/Fort Worth to Gatwick flights
Austin to Heathrow flights
Hobby to London City flights
Hobby to Gatwick flights
Love Field to Heathrow flights
Dallas/Fort Worth to London City flights
George Bush Intcntl to Gatwick flights
George Bush Intcntl to London City flights
Austin to Gatwick flights
Dallas/Fort Worth to Stansted flights
Love Field to Gatwick flights
Dallas/Fort Worth to Edinburgh flights
Austin to London City flights
San Antonio to Heathrow flights
Dallas/Fort Worth to Manchester flights
San Antonio to Gatwick flights
Love Field to Edinburgh flights
Hobby to Edinburgh flights
George Bush Intcntl to Stansted flights
Dallas/Fort Worth to Luton flights
Austin to Edinburgh flights
Hobby to Manchester flights
George Bush Intcntl to Edinburgh flights
George Bush Intcntl to Manchester flights
San Antonio to Edinburgh flights
Hobby to Birmingham flights
El Paso to Heathrow flights
San Antonio to London City flights
Love Field to Manchester flights
Austin to Manchester flights
George Bush Intcntl to Birmingham flights
San Antonio to Manchester flights
George Bush Intcntl to Luton flights
Austin to Stansted flights
Dallas/Fort Worth to Birmingham flights
El Paso to London City flights
Hobby to Southampton flights
San Antonio to Birmingham flights
George Bush Intcntl to Southampton flights
Corpus Christi to Heathrow flights
Love Field to Birmingham flights
Love Field to London City flights
Dallas/Fort Worth to Southampton flights
McAllen to Heathrow flights
Abilene to Heathrow flights
El Paso to Gatwick flights
Austin to Birmingham flights

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 agosto 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$680Average$1,008FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$742Average$1,381FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$768Average$1,086FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.