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$463+ 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
MFE — LON
Aug 2 — Aug 91
Sun 8/2
Sun 8/9
1 adult, Economy
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Cheap 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 July 3, 2026.

This Iberia deal was found by Cheapflights users on 6/28. 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.
Tue 11/1711:56 am
MFE
-
LHR
1 stop12h 54m
Iberia
Tue 11/246:05 am
LHR
-
MFE
2 stops21h 19m
Iberia
Deal found 6/28$865
This oojo deal was found by Cheapflights users on 6/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/174:59 pm
MFE
-
LHR
1 stop13h 01m
British Airways
Tue 11/248:20 am
LHR
-
MFE
1 stop16h 20m
British Airways
Deal found 6/28$894
This United Airlines deal was found by Cheapflights users on 7/2. 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 9/232:08 pm
MFE
-
LHR
1 stop15h 27m
United Airlines
Wed 10/77:45 am
LHR
-
MFE
2 stops16h 14m
United Airlines
Deal found 7/2$900
This Finnair deal was found by Cheapflights users on 7/1. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:21 am
MFE
-
LHR
1 stop17h 34m
Multiple Airlines
Wed 10/712:55 pm
LHR
-
MFE
1 stop14h 51m
Multiple Airlines
Deal found 7/1$904
This KLM deal was found by Cheapflights users on 6/28. 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 10/112:39 pm
MFE
-
LHR
2 stops18h 36m
KLM
Thu 10/158:40 am
LHR
-
MFE
2 stops21h 19m
KLM
Deal found 6/28$912
This United Airlines deal was found by Cheapflights users on 6/28. 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 10/112:15 pm
MFE
-
LHR
1 stop13h 30m
United Airlines
Thu 10/157:30 am
LHR
-
MFE
2 stops20h 28m
United Airlines
Deal found 6/28$930
This Expedia deal was found by Cheapflights users on 6/30. 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.
Mon 8/1010:56 am
MFE
-
LHR
1 stop21h 29m
Iberia
Mon 8/248:00 pm
LHR
-
MFE
2 stops32h 02m
Iberia
Deal found 6/30$935
This United Airlines deal was found by Cheapflights users on 6/28. 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.
Mon 8/105:00 am
MFE
-
LHR
1 stop20h 45m
United Airlines
Mon 8/241:35 pm
LHR
-
MFE
2 stops38h 24m
United Airlines
Deal found 6/28$940
This Finnair deal was found by Cheapflights users on 7/2. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1411:21 am
MFE
-
LHR
1 stop17h 34m
Multiple Airlines
Tue 9/2212:55 pm
LHR
-
MFE
1 stop14h 49m
Multiple Airlines
Deal found 7/2$946
This United Airlines deal was found by Cheapflights users on 7/3. 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.
Mon 9/147:00 am
MFE
-
LHR
1 stop18h 45m
United Airlines
Tue 9/2210:00 am
LHR
-
MFE
1 stop13h 44m
United Airlines
Deal found 7/3$948
This Kiwi.com deal was found by Cheapflights users on 7/2. 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.
Fri 8/710:19 am
MFE
-
LGW
1 stop17h 41m
Multiple Airlines
Sun 8/92:00 pm
LGW
-
MFE
1 stop25h 29m
Multiple Airlines
Deal found 7/2$989
This Expedia deal was found by Cheapflights users on 6/30. 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.
Mon 8/1012:07 pm
MFE
-
LCY
2 stops23h 48m
Lufthansa
Mon 8/246:30 pm
LCY
-
MFE
2 stops33h 29m
Lufthansa
Deal found 6/30$998

Find 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 July 3, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$865
(Iberia)

One-way from

$463
(United Airlines)

Popular in

June

Cheapest in

January

Average price

$934
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. 21% potential increase in price ($263 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($66 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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 July 3, 2026.
Use the filters below to find and compare flights from McAllen to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Thu 10/1

12:39 pm-1:15 pm

2 stops18h 36m

London Heathrow

Thu 10/15

8:40 am-11:59 pm

2 stops21h 19m

$912

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Mon 8/10

5:00 am-7:45 am

1 stop20h 45m

London Heathrow

Mon 8/24

1:35 pm-9:59 pm

2 stops38h 24m

$940

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Mon 9/14

11:21 am-10:55 am

1 stop17h 34m

London Heathrow

Tue 9/22

12:55 pm-9:44 pm

1 stop14h 49m

$946

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Mon 9/14

7:00 am-5:55 am

2 stops16h 55m

London Heathrow

Tue 9/22

7:45 am-5:44 pm

2 stops15h 59m

$948
Quickest round-trip

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Wed 9/16

2:08 pm-7:45 am

1 stop11h 37m

London Heathrow

Wed 9/30

7:45 am-7:29 pm

2 stops17h 44m

$963

McAllenLondon

MFE - LGW

MFELGW

McAllen Miller Intl

Fri 8/7

10:19 am-10:00 am

1 stop17h 41m

London Gatwick

Sun 8/9

2:00 pm-9:29 am

1 stop25h 29m

$989

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Sat 8/15

7:00 am-9:20 pm

2 stops32h 20m

London Heathrow

Sat 8/22

4:25 pm-9:59 pm

2 stops35h 34m

$995

McAllenLondon

MFE - LCY

MFELCY

McAllen Miller Intl

Mon 8/10

12:07 pm-5:55 pm

2 stops23h 48m

London City

Mon 8/24

6:30 pm-9:59 pm

2 stops33h 29m

$998

McAllenLondon

MFE - LCY

MFELCY

McAllen Miller Intl

Sat 9/12

12:39 pm-1:15 pm

2 stops18h 36m

London City

Mon 9/21

9:20 am-11:55 pm

2 stops20h 35m

$1,048

McAllenLondon

MFE - LCY

MFELCY

McAllen Miller Intl

Thu 10/1

12:39 pm-4:40 pm

2 stops22h 01m

London City

Thu 10/15

8:25 am-11:59 pm

2 stops21h 34m

$1,118

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice 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 Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on McAllen-London flight deals on Cheapflights vs. Ovago >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 Ovago the most. Ovago 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, April is the cheapest month in which you can book a flight from McAllen to London (average of $561). 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.

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 July 3, 2026.
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
9,929 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Food

6.7

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
United Airlines
7.4
Good
9,929 reviews
United Airlines
7.4
Good
9,929 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Food

6.7

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.
British Airways
6.7
Okay
8,093 reviews
United Airlines
7.4
Good
9,929 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Food

6.7

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Apr 2026

DFW - EWR

The flight was on time. Crew was friendly. Will fly again. The seats was comfortable.

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 2 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 18h 36m. 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 $628. Another option worth looking into is United Airlines, starting at $698 round trip. British Airways is 34% 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, April is the cheapest month in which you can book a flight from McAllen to London (average of $561). 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?

Book flights to London if you plan to visit one of these locations
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Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from McAllen to London

Discover the top 2 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 July 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$628Average$1,230FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$698Average$1,519FlexibilityNo cancel feeOn-time69%

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