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$256+ 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
MFE — LON
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
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 March 10, 2026.

This Expedia deal was found by Cheapflights users on 3/5. 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.
Wed 8/59:33 am
MFE
-
LHR
1 stop17h 27m
Iberia
Wed 8/2611:30 am
LHR
-
MFE
2 stops18h 45m
Iberia
Deal found 3/5$717
This Expedia deal was found by Cheapflights users on 3/5. 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.
Wed 8/55:00 am
MFE
-
LHR
2 stops19h 35m
Air Canada
Wed 8/2612:05 pm
LHR
-
MFE
2 stops26h 53m
Air Canada
Deal found 3/5$719
This United Airlines deal was found by Cheapflights users on 3/5. 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 8/39:43 am
MFE
-
LHR
1 stop19h 52m
United Airlines
Wed 8/267:25 am
LHR
-
MFE
2 stops20h 32m
United Airlines
Deal found 3/5$722
This Expedia deal was found by Cheapflights users on 3/7. 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 10/124:05 pm
MFE
-
LHR
1 stop14h 45m
Iberia
Mon 10/198:00 pm
LHR
-
MFE
2 stops33h 59m
Iberia
Deal found 3/7$728
This Expedia deal was found by Cheapflights users on 3/7. 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 10/124:05 pm
MFE
-
LGW
2 stops21h 55m
Iberia
Mon 10/198:40 pm
LGW
-
MFE
2 stops33h 19m
Iberia
Deal found 3/7$735
This Expedia deal was found by Cheapflights users on 3/6. 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.
Sat 9/58:12 pm
MFE
-
LHR
1 stop30h 48m
British Airways
Fri 9/1811:00 am
LHR
-
MFE
1 stop13h 02m
British Airways
Deal found 3/6$735
This Air Canada deal was found by Cheapflights users on 3/5. 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.
Tue 8/45:00 am
MFE
-
LHR
2 stops21h 35m
Air Canada
Fri 8/282:05 pm
LHR
-
MFE
2 stops48h 53m
Air Canada
Deal found 3/5$738
This FlightHub deal was found by Cheapflights users on 3/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/94:59 pm
MFE
-
LHR
1 stop13h 16m
British Airways
Fri 11/137:30 am
LHR
-
MFE
2 stops19h 54m
British Airways
Deal found 3/9$740
This oojo deal was found by Cheapflights users on 3/5. 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.
Wed 8/53:23 pm
MFE
-
LHR
1 stop11h 37m
British Airways
Wed 8/264:25 pm
LHR
-
MFE
1 stop13h 50m
British Airways
Deal found 3/5$745
This United Airlines deal was found by Cheapflights users on 3/8. 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 11/99:40 am
MFE
-
LHR
1 stop18h 35m
United Airlines
Fri 11/1310:00 am
LHR
-
MFE
1 stop15h 15m
United Airlines
Deal found 3/8$750
This FlightHub deal was found by Cheapflights users on 3/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/189:33 am
MFE
-
LHR
1 stop19h 22m
British Airways
Mon 9/78:00 pm
LHR
-
MFE
2 stops29h 32m
British Airways
Deal found 3/5$751
This American Airlines deal was found by Cheapflights users on 3/6. 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.
Tue 4/215:44 am
MFE
-
LGW
2 stops20h 56m
American Airlines
Tue 4/282:30 pm
LGW
-
MFE
2 stops30h 21m
American Airlines
Deal found 3/6$777

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 March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$717
(Expedia)

One-way from

$256
(oojo)

Popular in

December

Cheapest in

November

Average price

$680
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. 1% potential increase in price ($15 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($48 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 10, 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

Wed 8/5

5:00 am-6:45 am

2 stops19h 45m

London Heathrow

Tue 8/25

9:30 am-9:57 pm

2 stops18h 27m

$737

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Wed 8/5

5:00 am-7:40 am

1 stop20h 40m

London Heathrow

Thu 8/27

1:40 pm-9:57 pm

1 stop14h 17m

$750

McAllenLondon

MFE - LGW

MFELGW

McAllen Miller Intl

Tue 4/21

5:44 am-8:40 am

2 stops20h 56m

London Gatwick

Tue 4/28

2:30 pm-2:51 pm

2 stops30h 21m

$777

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Tue 8/18

5:00 am-10:00 am

2 stops23h 00m

London Heathrow

Mon 9/7

5:40 pm-5:54 pm

2 stops30h 14m

$788

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Tue 8/18

2:05 pm-10:40 am

2 stops14h 35m

London Heathrow

Mon 9/7

5:40 pm-5:54 pm

2 stops30h 14m

$790

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Tue 4/21

7:00 am-6:30 am

2 stops17h 30m

London Heathrow

Tue 4/28

9:30 am-10:59 pm

2 stops19h 29m

$796
Quickest round-trip

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Thu 8/6

12:07 pm-7:40 am

1 stop13h 33m

London Heathrow

Tue 8/25

1:40 pm-9:57 pm

1 stop14h 17m

$800

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Fri 8/7

12:07 pm-7:40 am

1 stop13h 33m

London Heathrow

Thu 8/27

1:40 pm-9:57 pm

1 stop14h 17m

$800

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Fri 8/7

5:25 am-6:20 am

2 stops18h 55m

London Heathrow

Thu 8/27

8:40 am-11:59 pm

2 stops21h 19m

$837

McAllenLondon

MFE - LCY

MFELCY

McAllen Miller Intl

Wed 8/5

10:38 am-3:15 pm

2 stops22h 37m

London City

Wed 8/26

9:50 am-12:15 am

2 stops20h 25m

$894

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

Showing 1-10 of 54 resultsSorted by cheapest first
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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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 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

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 March 10, 2026.
Read through reviews of airlines operating flights from McAllen to London, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,409 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,409 reviews
United Airlines
7.4
Good
9,409 reviews

Overall

7.4

Crew

8.1

Comfort

7.3

Boarding

7.7

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 19h 45m. 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. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $682 and $698, respectively. British Airways is 24% 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.

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 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 March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$628Average$1,230FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$682Average$1,576FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$698Average$1,576FlexibilityNo cancel feeOn-time69%

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