MFE - LON

$577 Find Cheap Flights from McAllen to London

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from McAllen to London departing on 8/14. 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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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

Thu, Aug 14 - Thu, Aug 21
KLM Logo
12:31 pm - 1:30 pmMFE-LHR
18h 59m2 stops
KLM Logo
8:40 am - 11:59 pmLHR-MFE
21h 19m2 stops
$577KLM
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Tue, Aug 26 - Wed, Sep 3
Iberia Logo
10:38 am - 2:25 pmMFE-LHR
21h 47m1 stop
Iberia Logo
9:15 am - 8:52 pmLHR-MFE
41h 37m2 stops
$629Iberia
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Tue, Aug 26 - Wed, Sep 3
United Airlines Logo
5:00 am - 6:30 amMFE-LHR
19h 30m2 stops
United Airlines Logo
8:30 am - 9:47 pmLHR-MFE
19h 17m2 stops
$638United Airlines
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Tue, Aug 26 - Fri, Sep 5
Air Canada Logo
7:25 pm - 6:30 amMFE-LHR
29h 05m2 stops
Air Canada Logo
4:00 pm - 7:26 pmLHR-MFE
33h 26m2 stops
$639Air Canada
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Tue, Aug 26 - Thu, Sep 4
Iberia Logo
9:33 am - 2:25 pmMFE-LHR
22h 52m1 stop
Iberia Logo
6:45 pm - 8:52 pmLHR-MFE
32h 07m2 stops
$640Iberia
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Tue, Aug 26 - Fri, Sep 5
United Airlines Logo
5:00 am - 6:30 amMFE-LHR
19h 30m2 stops
United Airlines Logo
10:00 am - 1:30 pmLHR-MFE
33h 30m1 stop
$650United Airlines
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Tue, Aug 26 - Tue, Sep 2
United Airlines Logo
7:00 am - 6:55 amMFE-LHR
17h 55m2 stops
United Airlines Logo
3:20 pm - 11:25 amLHR-MFE
26h 05m2 stops
$654United Airlines
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Mon, Sep 15 - Mon, Sep 22
British Airways Logo
6:23 pm - 2:25 pmMFE-LHR
14h 02m1 stop
British Airways Logo
7:25 pm - 10:50 pmLHR-MFE
33h 25m2 stops
$661British Airways
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Fri, Aug 22 - Tue, Aug 26
British Airways Logo
6:10 pm - 12:45 pmMFE-LHR
12h 35m1 stop
British Airways Logo
7:45 am - 10:48 pmLHR-MFE
21h 03m2 stops
$672British Airways
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Tue, Aug 26 - Fri, Sep 5
American Airlines Logo
5:33 am - 8:10 amMFE-LGW
20h 37m2 stops
American Airlines Logo
2:30 pm - 5:26 pmLGW-MFE
32h 56m2 stops
$875American Airlines
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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.

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 March, where tickets cost $712 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $1,240 and $995 respectively.

Good to know

Low seasonFebruary
Cheapest flight$577
Best time to beat the crowds with an average 5% 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 $6,288 for a one-way ticket and $577 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?

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

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

    The two airlines most popular with KAYAK users for flights from McAllen to London are United Airlines and American Airlines. With an average price for the route of $991 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $782 and an overall rating of 7.2.

  • 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 3 airlines serving 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 8904 reviews
7.7Boarding
7.3Comfort
6.6Food
7.1Entertainment
8.1Crew
Airline reviews

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.

4.0 OkayAnna, Jul 2025IAH - YYZ
Read more United Airlines reviews

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

Boarding experience was smooth. Flight attendants were friendly and helpful. Entertainment system on the Houston-Edmonton flight did not function for passengers on the left side of the aisle. On the bird's eye flight from Quito to Houston, they should not serve a meal. No one needs to eat after midnight and it is disturbing for those passengers trying to sleep.

Liked fold flat bed. Didn’t like having no window. Didn’t like poor choice of food and being served dinner very late, hours after take off of a 7:40pm flight. Servers not friendly. Food horrible in business class.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

My suitcase was completed destroyed. The top part is broken and unusable now.

Pathetic check in experience at JFK. Everything is self check in. Not enough staff present to help with when the check in process or the kiosk gets stuck. Staff present not welcoming or pleasant at all. On the other hand the NY based flight crew was great. Courteous and friendly throughout the flight. Special meals leave a lot to be desired. Kids meals should be made available when kids are flying and same goes for special kids meals too.

Flight was full, and would have preferred an aisle seat, but due to getting a late ticket ,the seat I had was adequate. The flight crew were very help full and hard working. Food and drink were excellent for the 11hr flight. Overall I was pleased with flight, and would recommend British Airways again.

More choices on menu. Seemed only thing offered was Scottish, and while that’s good for the Scot’s it doesn’t help the Americans who don’t like that food. And I really hate it when, during sleep time the attendants have a very loud conversation right over you. Lastly, I paid 5000 dollars for business class, and having to pay more to choose my seat early is really an insult. Seems greedy

The chicken adobo was a little too spicy but good otherwise. My personal opinion. Movie selection could be improved, too many horror movies. Could add a few more chick flicks! The flight was bumpy at times. We arrived a little early too! Flight attendants friendly.

Again flight was awesome except British Airways lost both gate checked luggage’s. Still missing

really bad they refused to check in luggages that I had purchased, even showing them the transaction receipt from british airways app the staff in miami was MEDIOCRE

Crew was great and responsive. Entertainment quit working with about 4 hours remaining on the flight. My seat cushion was broken.

Not very good , the stewardess were unfriendly and they don't like to be bothered. Cos was a night flight and they need to sleep.

British Airways staff are very polite and willing to help.

This particular flight wasn't very full at the back, so there were three seats available for spreading out and getting relatively comfortable

Flight was delayed. Though I checked in with BA live chat three times, our special meals were not provided.

My experience with British Airways is excellent, thanks for all 🫶🏻✈️

Old tired plane, Uncomfortable business class seat. Breakfast dreadful and meagre. At least flight was on time!

The crew is very friendly and helpful. The food is good for airplane food. The flight is long and hard to sleep. The leg space is great. The plane arrived in plenty of time.

Enjoyable flight, helpful crew everything was organized to accommodate passengers.

Captain sick. Unable to get replacement so delayed me 30 hours, many others delayed 54 hours. TOTALLY DESTROYED ALL MY PLANS, including lost my rental car which would now cost over 5 times what I paid so stuck with buses n trains... lost hotel reservations.... HORRIBLE!!!

They’ve lost my bag and I have no way of really getting in touch with anyone and have received no updates.

Very crowded, no real explanation of food "chicken or pasta?" After dinner no drinks service. Plane was clean, but little help with finding soaces fir luggage to get into overhead bins. Many passengers putting 2 bags, hats, duty free in overhead bins so no space for roll ons

Flight was good but seat in 12D was not comfortable, better on the Airbus 321 from Tampa to Charlotte. No breakfast was served before landing in zLonfon only a coffee and orange juice.

I was transferred to an American Airlines flight. The boarding was late and unorganized. The seating was extremely tight and uncomfortable. Will not use AA again.

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

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