MFE - LON

$456 Find Cheap Flights from McAllen to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from McAllen to London departing on 3/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to London

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from McAllen to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from McAllen to London, as well as popular online travel agencies
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Flight Deals

Cheap Flights from McAllen to London (MFE-LON)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from McAllen to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from McAllen to London

Wed, Nov 5 - Wed, Nov 19
Delta Logo
5:14 pm - 1:50 pmMFE-LHR
38h 36m2 stops
Delta Logo
11:45 am - 11:59 pmLHR-MFE
42h 14m2 stops
$612Delta
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Thu, Oct 30 - Thu, Nov 6
KLM Logo
12:31 pm - 8:45 amMFE-LHR
15h 14m2 stops
KLM Logo
12:30 pm - 11:59 pmLHR-MFE
17h 29m2 stops
$626KLM
Find Deal
Wed, Nov 5 - Wed, Nov 19
United Airlines Logo
7:00 am - 10:15 amMFE-LHR
21h 15m1 stop
United Airlines Logo
9:30 am - 8:54 amLHR-MFE
29h 24m2 stops
$640United Airlines
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Wed, Oct 29 - Wed, Nov 5
United Airlines Logo
7:00 am - 7:30 amMFE-LHR
19h 30m1 stop
United Airlines Logo
12:05 pm - 1:30 pmLHR-MFE
31h 25m1 stop
$652United Airlines
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Thu, Oct 30 - Thu, Nov 6
United Airlines Logo
2:06 pm - 7:30 amMFE-LHR
12h 24m1 stop
United Airlines Logo
9:30 am - 9:59 pmLHR-MFE
18h 29m2 stops
$666United Airlines
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Thu, Dec 25 - Thu, Jan 8
British Airways Logo
4:59 pm - 11:40 amMFE-LHR
12h 41m1 stop
British Airways Logo
6:10 pm - 6:16 pmLHR-MFE
30h 06m2 stops
$820British Airways
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Thu, Oct 30 - Thu, Nov 6
Multiple Airlines Logo
5:00 pm - 4:40 pmMFE-LCY
18h 40m2 stops
Multiple Airlines Logo
9:40 am - 8:54 amLCY-MFE
29h 14m3 stops
$841Multiple Airlines
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Thu, Dec 25 - Thu, Jan 8
British Airways Logo
4:01 pm - 11:40 amMFE-LHR
13h 39m1 stop
British Airways Logo
8:20 am - 4:21 pmLHR-MFE
14h 01m1 stop
$853British Airways
Find Deal
Wed, Nov 5 - Wed, Nov 19
Lufthansa Logo
2:06 pm - 4:40 pmMFE-LCY
20h 34m2 stops
Lufthansa Logo
9:50 am - 9:59 pmLCY-MFE
18h 09m2 stops
$906Lufthansa
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Thu, Oct 30 - Thu, Nov 6
Multiple Airlines Logo
9:50 am - 8:45 amMFE-LCY
17h 55m3 stops
Multiple Airlines Logo
9:40 am - 8:54 amLCY-MFE
29h 14m3 stops
$979Multiple Airlines
Find Deal

Everything you should know

Top airlines
Delta
Cheapest • from $612 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
November
Cheapest • 17% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$612
Overall average: $762
Delta
Wed 11/5Wed 11/19
MFE - LHR • 2 stops
Cheapest one-way
$456
United Airlines
Fri 3/13
MFE - LHR • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to London!
Booking Insights

KAYAK's insights & trends for McAllen to London flights

Get data-powered insights and trends into flights from McAllen to London to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from McAllen to London?

What is the cheapest month to fly from McAllen to London?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from McAllen to London, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from McAllen to London is November, where tickets cost $713 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $1,258 and $1,056 respectively.

Good to know

Low seasonFebruary
Cheapest flight$456
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 4% increase in price.
Flight from McAllen to London Heathrow Airport

When to book flights from McAllen to London

Are your dates flexible? Find out the best times to travel from McAllen to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from McAllen to London

  • What is the cheapest flight from McAllen to London?

    In the last 3 days, the lowest price for a flight from McAllen to London was $456 for a one-way ticket and $612 for a round-trip.

  • Do I need a passport to fly between McAllen and London?

    Yes, you'll most likely have to show a valid passport before boarding the plane in McAllen and on arrival in London.

  • Which airports will I be using when flying from McAllen to London?

    McAllen is served by only 1 airport and there are 2 airports in London. You will leave McAllen from McAllen Miller Intl and you will be arriving in London at one of these airports: London Gatwick or London Heathrow.

  • Which aircraft models fly most regularly from McAllen to London?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from McAllen to London?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between McAllen and London, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from McAllen to London, United Airlines or British Airways?

    The two airlines most popular with KAYAK users for flights from McAllen to London are United Airlines and British Airways. With an average price for the route of $1,013 and an overall rating of 7.4, United Airlines is the most popular choice. British Airways is also a great choice for the route, with an average price of $890 and an overall rating of 6.6.

  • How does KAYAK find such low prices on flights from McAllen to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from McAllen to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from McAllen to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from McAllen is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from McAllen to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to McAllen with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from McAllen to London?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from McAllen up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from McAllen to London

 
See real verified KAYAK customer reviews for airlines flying from McAllen to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from McAllen to London? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8929 reviews
7.1Entertainment
7.7Boarding
7.3Comfort
8.1Crew
6.6Food
Airline reviews

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

6.0 GoodKaren Andrea, Sep 2025IAH - MCO
Read more United Airlines reviews

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight was delayed and missed my connection Lufthansa didn’t respond.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

United could have one single once of customer service. No human United employee would help me with the invalid mileage plus number, they said I had to speak with the computer.

A little bit more leg room in premium economy. I am 6’4”.

Overall it was good. I missed my connection but I was put on another flight.

Although the flight was delayed the crew and the flight itself were very good. Couldn't fault anything and after the disappointment of being abandoned in the US by BA it was a welcome relief to travel with United

Gate agent did not hold flight for connection, provided no assistance to get new flight

The seating has become ridiculous… like a contest to see how narrow and short they can be made- forcing anyone over 5’1 to pay more to not be twisting oneself into a pretzel. Really insane- would have thought BA was better than this. Frankly- it cancels out a lot of the positive aspects.

flight was delayed from BWI to London - missed my connecting flight & then connecting flight (also British Air) was delayed - food is awful, TV & movie selection is great

Super tight economy class. My knees were hitting the back of seat in front of me (I'm only 5'6"). My small backpack (sized according to their required dimensions) would not fit under the seat in front of me because there is a box (is that the life jacket?) in the way. Over all, extremely uncomfortable. I forgive the tasteless food, but the tight seating was torture

Didn’t fly with them as someone had cancelled my flight

Online check-in 24 hours in advance something seems not so easy to check in to pick seats and to print a boarding pass

I like the crew, very welcoming. Food can be better. The seat arms don’t go up so. I could use the empty seat next to mine to relax better. 3hrs delay 😠

Boarding was efficient and quick, crew was very attentive, seats were comfortable.

Everything was very good! I personally struggled with the heat in the cabin for the first 2 hours

Very caring crew on board. Didn’t have dinner as I was sleeping. Was seating in the emergency row so I had comfortable leg room

Had a nice little suite although I couldn’t close the door (but I didn’t ask anyone to help). 5K is a nice seat and very private (you look in on first class). Enjoyable flight and nice crew.

Everything you need to know for your flight from McAllen to London

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