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$524+ 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
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
1 adult, Economy
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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 October 16, 2025.

This American Airlines deal was found by Cheapflights users on 10/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/72:32 pmMFE - LHR
1 stop15h 08mAmerican Airlines
Sun 12/148:20 amLHR - MFE
1 stop19h 17mAmerican Airlines
Deal found 10/16$674
This United Airlines deal was found by Cheapflights users on 10/16. 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.
Fri 11/149:50 amMFE - LHR
1 stop18h 25mUnited Airlines
Sat 11/222:30 pmLHR - MFE
2 stops37h 29mUnited Airlines
Deal found 10/16$675
This United Airlines deal was found by Cheapflights users on 10/15. 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.
Sat 11/157:00 amMFE - LHR
2 stops16h 55mUnited Airlines
Sat 11/2212:05 pmLHR - MFE
1 stop14h 03mUnited Airlines
Deal found 10/15$687
This Orbitz deal was found by Cheapflights users on 10/16. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/79:37 amMFE - LHR
2 stops17h 38mIberia
Sun 12/1410:05 amLHR - MFE
1 stop18h 51mIberia
Deal found 10/16$688
This United Airlines deal was found by Cheapflights users on 10/14. 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.
Sun 11/97:00 amMFE - LHR
1 stop18h 30mUnited Airlines
Sat 11/224:20 pmLHR - MFE
2 stops22h 34mUnited Airlines
Deal found 10/14$689
This Booking.com deal was found by Cheapflights users on 10/16. 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.
Fri 11/1411:56 amMFE - LHR
1 stop12h 54mBritish Airways
Sat 11/228:20 amLHR - MFE
1 stop20h 43mBritish Airways
Deal found 10/16$690
This Air Canada deal was found by Cheapflights users on 10/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/157:00 amMFE - LHR
2 stops17h 30mAir Canada
Sat 11/221:00 pmLHR - MFE
2 stops25h 54mAir Canada
Deal found 10/15$750
This Delta deal was found by Cheapflights users on 10/14. 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.
Sun 11/912:44 pmMFE - LHR
2 stops14h 16mDelta
Sat 11/223:50 pmLHR - MFE
2 stops26h 14mDelta
Deal found 10/14$757
This United deal was found by Cheapflights users on 10/16. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/75:20 pmMFE - LHR
2 stops31h 10mMultiple Airlines
Sun 12/1411:10 amLHR - MFE
2 stops27h 44mMultiple Airlines
Deal found 10/16$837
This Delta deal was found by Cheapflights users on 10/14. 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.
Sun 11/95:24 pmMFE - LCY
2 stops41h 11mDelta
Sat 11/228:40 amLCY - MFE
2 stops38h 04mDelta
Deal found 10/14$900
This Delta deal was found by Cheapflights users on 10/15. 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.
Sat 11/1512:44 pmMFE - LCY
2 stops18h 31mDelta
Sat 11/228:40 amLCY - MFE
2 stops38h 04mDelta
Deal found 10/15$1,128
This Delta deal was found by Cheapflights users on 10/16. 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.
Sun 12/75:18 pmMFE - LCY
2 stops41h 17mDelta
Sun 12/141:45 pmLCY - MFE
2 stops40h 11mDelta
Deal found 10/16$1,144

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 October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$674
(American Airlines)

One-way from

$524
(United Airlines)

Popular in

May

Cheapest in

November

Average price

$797
Provider with most accurate pricing for McAllen Miller Intl-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for McAllen Miller Intl-London (LON) flights.
Search Deals
From McAllen Miller Intl to London (LON)
Search Deals
One-way flight from McAllen Miller Intl to London (LON)
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($199 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 16, 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

Sun 12/7

2:32 pm-11:40 am

1 stop15h 08m

London Heathrow

Sun 12/14

8:20 am-9:37 pm

1 stop19h 17m

$674

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Fri 11/14

9:50 am-10:15 am

1 stop18h 25m

London Heathrow

Sat 11/22

2:30 pm-9:59 pm

2 stops37h 29m

$675

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Sat 11/15

2:06 pm-10:15 am

1 stop14h 09m

London Heathrow

Sat 11/22

10:00 am-6:07 pm

1 stop14h 07m

$687

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Sun 12/7

9:37 am-9:15 am

2 stops17h 38m

London Heathrow

Sun 12/14

10:05 am-10:56 pm

1 stop18h 51m

$688

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Sun 11/9

2:34 pm-11:40 am

1 stop15h 06m

London Heathrow

Sat 11/22

3:00 pm-9:03 am

1 stop24h 03m

$689

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Sun 11/9

9:43 am-6:50 am

1 stop15h 07m

London Heathrow

Sat 11/22

8:20 am-9:16 pm

1 stop18h 56m

$689

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Sun 11/9

7:00 am-7:30 am

1 stop18h 30m

London Heathrow

Sat 11/22

4:20 pm-8:54 am

2 stops22h 34m

$689

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Fri 11/14

11:56 am-6:50 am

1 stop12h 54m

London Heathrow

Sat 11/22

8:20 am-11:03 pm

1 stop20h 43m

$690

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Sat 11/15

7:00 am-6:30 am

2 stops17h 30m

London Heathrow

Sat 11/22

1:00 pm-8:54 am

2 stops25h 54m

$750

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Fri 3/27

7:15 am-7:30 am

1 stop19h 15m

London Heathrow

Tue 3/31

12:15 pm-11:27 pm

2 stops17h 12m

$811

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 23 results
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Compare providers for flights from McAllen to London

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from McAllen to London in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on McAllen-London flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on McAllen-London flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from McAllen-London flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on McAllen-London flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for McAllen-London flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 $612). Flying from McAllen to London in June is currently the most expensive (average of $1,427). 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 October 16, 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 afternoon.

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 October 16, 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
8,980 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,980 reviews
United Airlines
7.4
Good
8,980 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
British Airways
6.7
Okay
7,457 reviews
United Airlines
7.4
Good
8,980 reviews

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

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 08m. 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 21% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from McAllen to London one-way?

    One-way options have recently been found by users for as low as $524 on United Airlines. Other airlines that offer cheap prices include Air Canada from $554 and British Airways from $1,489 one-way.

  • 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 $612). Flying from McAllen to London in June is currently the most expensive (average of $1,427). 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?

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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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$680Average$1,125FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$682Average$1,070FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$880Average$1,286FlexibilityNo cancel feeOn-time71%

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