$629 Find Cheap Flights from McAllen to the United Kingdom

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 the United Kingdom departing on 8/4. 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

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Cheap Flights from McAllen to the United Kingdom

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
London
London1 stop$629
Birmingham
Birmingham2 stops$946
London
London1 stop$629
Birmingham
Birmingham2 stops$946

Book Cheap McAllen to the United Kingdom Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from McAllen to the United Kingdom 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 the United Kingdom

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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Fri, Nov 14 - Sun, Nov 23
Delta Logo
5:30 pm - 12:05 pmMFE-LHR
36h 35m2 stops
Delta Logo
11:45 am - 11:56 pmLHR-MFE
42h 11m2 stops
$661Delta
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Fri, Sep 12 - Fri, Sep 19
Delta Logo
5:18 pm - 1:50 pmMFE-LHR
38h 32m2 stops
Delta Logo
11:45 am - 4:38 pmLHR-MFE
58h 53m2 stops
$667Delta
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Sun, Sep 7 - Sun, Sep 14
British Airways Logo
8:10 pm - 2:25 pmMFE-LHR
12h 15m1 stop
British Airways Logo
11:30 am - 5:26 pmLHR-MFE
35h 56m2 stops
$680British Airways
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Sun, Sep 7 - Sun, Sep 14
British Airways Logo
3:26 pm - 12:45 pmMFE-LHR
15h 19m1 stop
British Airways Logo
4:25 pm - 12:19 amLHR-MFE
13h 54m1 stop
$695British 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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Wed, Aug 27 - Tue, Sep 2
American Airlines Logo
6:10 pm - 6:25 amMFE-LHR
30h 15m1 stop
American Airlines Logo
12:00 pm - 7:27 pmLHR-MFE
13h 27m1 stop
$946American Airlines
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Booking Insights

KAYAK's insights & trends for McAllen to the United Kingdom flights

Get data-powered insights and trends into flights from McAllen to the United Kingdom 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 the United Kingdom?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from McAllen to the United Kingdom, 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 the United Kingdom is March, when tickets cost $712 (return) on average. On the other hand, the most expensive months are June and May, when the average cost of round-trip tickets is $1,240 and $995 respectively.


Good to know

Low seasonJanuary
Cheapest flight$629
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly and prices are also 0% lower on average.
Flight from McAllen to London Heathrow Airport

FAQs - booking United Kingdom flights

  • How does KAYAK find such low prices on flights from McAllen to the United Kingdom?

    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 the United Kingdom.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from McAllen to the United Kingdom 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 the United Kingdom?

    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 from McAllen to the United Kingdom with an airline and back with another airline.

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

    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 from McAllen to the United Kingdom up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to the United Kingdom?

    The cheapest time of day to fly to the United Kingdom is generally in the morning, when round-trip flights cost $774 on average. Morning departures are around 11% cheaper than evening flights, on average. The most expensive time of day to fly to the United Kingdom is generally at night, which is peak travel time and where the average cost of a ticket is $1,188.

Reviews of the top 3 airlines serving from McAllen to the United Kingdom

 
Need help choosing which airline to fly with from McAllen to the United Kingdom? 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 8896 reviews
7.7Boarding
6.6Food
7.1Entertainment
7.3Comfort
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.

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.

We boarded but then sat there waiting on some missed connection people to get on so we sat for about 15 minutes for that. Then we sat again because the passenger manifest was wrong and they had to figure it out before we could leave. That took about another 20 minutes or so. The crew was working hard to figure it out so it’s not their fault. It ended up being a system glitch where someone was upgraded to first class while another person was also in the same seat and it just created a mess that took a little while to figure out. They literally went to every person on the plane asking their names to see who was sitting in the wrong seat. I also hate the entertainment that must be watched on your phone or tablet. Just give us setback screens. It’s so much better. Almost every Delta flight has this now and it is so nice to have them. The crew did a great job. I have no complaints from them. They were very hard working, even with the mishap and a disgruntled passenger.

Very poor delay in dfw was really bad n long

Because of rescheduling, they had to put me on a flight that didn't go through Dallas

The flight got delayed 2.5 hrs due to a maintenance issue that cause a domino effect. American should have spare planes for when something like this happens.

Flight was delayed again and again ultimately almost three hours getting us to our location at close to midnight by the time we got in and out of airport to destination. I had taken time off work to enjoy an evening at destination and that was now wasted

The flight delay in Dallas created a domino effect that impacted all of the connecting flights. It also increased the number of connections. I missed my flight from Casablanca to Marrakech because of the tight turnaround when landing in Casablanca. . CMN airport was understaffed. Only one person could help while other employees were just watching him. It was an extremely frustrating situation. People were crying and slamming their palms on the counter when speaking to the customer service provider, Allabough (man’s name?). Allabough couldn’t change my flight in the system. simultaneously, I was on the call with America. Airlines customer service rep named Solomon that said he couldn’t change it either. So, I took a ONYA voyages train to from Casablanca to Marrakech to get there on Friday June 26. This was unpredictable trip.

Terrible. Cancelled my original flight. It made getting a boarding pass difficult. The AA employee (in a loud voice, so everyone around could hear) griped at me for not getting a boarding pass 24 hours before. I asked how I was supposed to do that when I had no idea what flight I was going to be on. She said (loudly), “Talk to AA customer service, not me!” I could certainly tell serving customers was not important to her. Our new flight was set to a completely different city. We had to change our rental car, and the price went way up. It took 2-1/2 hours to get checked in. By then our new flight had left. We ended up on stand by and had to split up the family to get to our destination. It cost us the whole first day of the trip. AA needs to employ people who actually care about doing a good job. I suppose those people are getting harder to find, but atleast try.

Loved the staff, boarding and drink options! Wish the comfort of the seat could have been better nevertheless

So awful Unreliable Unfriendly Bad Mad Mean Smelly Hot Late Overbooked Understaffed Expensive Cramped Narcs If they were a fruit they’d be rotten durian

At the beginning of the flight there was some turbulence and the announcement was made that there would be no beverage service. The turbulence only last about 5 minutes then it was smooth sailing. I noticed that first class got their service, but the rest of us did not.

Update departure times in a more timely manner. We are not boarding on time if the plane isn’t arriving until after our scheduled departure time.

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.

The entertainment selection was ok, but overall not bad! The crew was great.

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