MFE - LHR

$957 Find Cheap Flights from McAllen to London Heathrow Airport

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 7/22. 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

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

 
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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Flights Deals

Cheap Flight Deals from McAllen to Heathrow (MFE-LHR)

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

Recent round-trip flight deals from McAllen to London

KAYAK's recommended round-trip deals from the most popular airlines that fly from McAllen to London.
Discover the best prices for you by selecting your travel dates on KAYAK.
Iberia Logo
5:12 pm - 12:30 pmMFE-LHR
13h 18m1 stop
Iberia Logo
10:30 am - 10:14 pmLHR-MFE
17h 44m1 stop
$957Iberia
Find Deal
Tue, Jul 22 - Wed, Aug 6
United Airlines Logo
5:18 pm - 7:40 amMFE-LHR
32h 22m1 stop
United Airlines Logo
3:50 pm - 4:01 pmLHR-MFE
30h 11m2 stops
$1,007United Airlines
Find Deal
Fri, May 16 - Tue, Jun 3
Iberia Logo
12:40 pm - 6:25 amMFE-LHR
11h 45m1 stop
Iberia Logo
10:30 am - 10:14 pmLHR-MFE
17h 44m1 stop
$1,017Iberia
Find Deal
Tue, Jul 22 - Wed, Aug 6
Air Canada Logo
5:15 am - 6:35 amMFE-LHR
19h 20m2 stops
Air Canada Logo
8:30 am - 1:29 pmLHR-MFE
34h 59m2 stops
$1,023Air Canada
Find Deal
Tue, Jul 22 - Wed, Aug 6
Air Canada Logo
5:15 am - 6:35 amMFE-LHR
19h 20m2 stops
Air Canada Logo
5:40 pm - 4:16 pmLHR-MFE
28h 36m2 stops
$1,099Air Canada
Find Deal
Mon, Jul 7 - Fri, Jul 18
 Logo
7:00 am - 11:35 amMFE-LHR
22h 35m1 stop
 Logo
5:40 pm - 6:04 pmLHR-MFE
30h 24m2 stops
$1,153
Find Deal
Fri, Jul 4 - Thu, Jul 24
 Logo
12:12 pm - 11:45 amMFE-LHR
17h 33m2 stops
 Logo
5:40 pm - 6:04 pmLHR-MFE
30h 24m2 stops
$1,157
Find Deal
Fri, Jul 4 - Thu, Jul 24
American Airlines Logo
8:06 pm - 2:25 pmMFE-LHR
12h 19m1 stop
American Airlines Logo
4:25 pm - 12:21 amLHR-MFE
13h 56m1 stop
$1,164American Airlines
Find Deal
Fri, Jun 13 - Fri, Jun 20
British Airways Logo
8:06 pm - 2:25 pmMFE-LHR
12h 19m1 stop
British Airways Logo
6:15 am - 7:20 pmLHR-MFE
19h 05m2 stops
$1,168British Airways
Find Deal
Fri, Jun 13 - Fri, Jun 20
British Airways Logo
10:33 am - 6:05 pmMFE-LHR
25h 32m2 stops
British Airways Logo
6:30 am - 7:26 pmLHR-MFE
18h 56m2 stops
$1,217British Airways
Find Deal
Wed, Jun 25 - Wed, Jul 9
Useful Info

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 Heathrow Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from McAllen to London Heathrow Airport, 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 Heathrow Airport is August, where tickets cost $648 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $1,459 and $1,416 respectively.

Good to know

Low seasonJanuary
High seasonMay
Cheapest flight$957
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 1% 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 McAllen to London Heathrow Airport flights

  • What is the cheapest flight from McAllen to London Heathrow Airport?

    In the last 3 days, the lowest price for a flight from McAllen to London Heathrow Airport was $957 for a round-trip ticket.

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

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

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

    McAllen airport is called McAllen Miller Intl and the only airport in London Heathrow Airport is London Heathrow.

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

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

  • Which airline alliances offer flights from McAllen to London Heathrow Airport?

    oneworld, and Star Alliance are the airline alliances operating flights between McAllen and London Heathrow Airport, 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 $1,145 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 $997 and an overall rating of 7.2.

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

    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 Heathrow Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport 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 Heathrow Airport?

    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 Heathrow Airport with an airline and back to McAllen with another airline. Booking your flights between McAllen and LHR can sometimes prove cheaper using this method.

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

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

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 8696 reviews
8.1Crew
7.1Entertainment
7.7Boarding
7.3Comfort
6.6Food
Airline reviews

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.

10.0 ExcellentDr. Joseph, Apr 2025IAH - ORD
Read more United Airlines reviews

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.

My priority checked bag was not loaded on the flight. I had to sit in baggage claim in Las Vegas for 2 1/2 hours waiting for the next flight. All baggage staff were very helpful, tracking showed it as scanned for loading. Nobody told me why it wasn't on my flight.

The flight was heavily booked so boarding was a lengthy process. The FA’s were rather abrupt during this process but became more gracious as the flight went on. Breakfast (puffed pastry and chewy sausage) was pretty horrible but there was fruit and yogurt which they didn’t mess up. Overall it was fine.

All male crew was just too woke for me. I felt like a sardine. I will never take a window seat or the rearmost seat again. I booked early and did not pay for seat selection and that was a mistake. The security at IAH was atrocious. I was violated and radiated as I was in a hurry to connect to my other flight. I may have lost items under the seat in front of me that I couldn't see nor bend over to look.

Food choices were very limited. Taste of the dishes was average.

It’s been awhile since I have traveled on United. I, along with my family who were on the flight noted how smoothly everything went . Boarding, flight crew and service was excellent.

Oh my gosh, I loved my experience with United! they made me want to travel more often.

Fight was delayed an hour due to operational issues ,then further delayed due to ground control for a total of about 1.30 hours. Salad was completely frozen and flatware was so cold you could barely handle it. Crew was friendly and professional and the flight was smooth. The aircraft was clean and well-serviced.

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.

Took off on time and successfully avoided weather that looked to be a problem along the way

British Airways staff are very polite and willing to help.

I liked everything. Except that my neck was hurting on the seat. I couldn't sleep.

We were delayed Al ost / hours after boarding so that maintenance had to add oil to the engines. Then the oil they grabbed had been left out in the Dallas record cold and was frozen. They had to go back to the hanger and grab some that was not frozen.

They changed my seat from one that I had paid for as an upgrade to a regular seat at the last minute.

Flight was empty so had a whole row to myself. Still had to wait to get the bag due to the negligence at Palm Springs departure.

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

There were several issues with this flight. I have flown quite often internationally and I was surprised by the lack of presence of attendants other than meal and drink times. The food was not best but I feel that is the norm. We also had to get off the plane once in London via stairs and bus to the terminal. Anyone who had another flight had to then get another bus to another terminal. This causes me to miss my flight and have to rebook.

The flight from Seattle was delayed, which made me miss my connection to Florence. I was re-booked NINE HOURS LATER!!! That’s basically a vacation day lost. British Airways needs to partner with other airlines when possible to get a more realistic travel time, if delays occur. I realize there aren’t many flights to Florence from London, so I would book differently were I to return. The actual flight from Seattle was very comfortable and the crew was great, no faults there. I enjoy British Airways, this was an anomaly.

The crew could not have been more helpful, my meal was excellent, I slept peacefully until right before landing, and the BA lounge was a godsend. The only negative I encountered was the coffee both on the plane and in the lounge. Not to my taste but that’s a personal preference.

I don’t understand why a reputable airline like BA would delegate their London flights to AA. Makes no sense to me, as most domestic carriers do such a poor job these days. Terminal 3 at LHR is a total dump

Cancelled flight minutes before boarding. Rescheduled flight was two days later

The flight attendants were EXTREMELY personable and appreciated the service, lights going off after dinner (probably the norm, but I haven’t flown evening overnight flights in a while). Thank you!

Business class seats were very dated on my plane. Very little storage, charging ports were not easily accessible, tv screen kept flopping away. Vegetarian food was disappointing: hardly any protein and severely under-seasoned. Crew was lovely.

The food was ok, but not great. They delayed boarding in Portland and did not enforce group boarding. But the crew was excellent, went above and beyond.

The food was pathetic. There wasn't much leg room and recline space for such a long flight. No tea/ coffee for a 2-3 hour connecting flight without purchasing! Really!?

Service was very good. Because I use a cane, I was allowed to use Priority Boarding. Biggest problem was extremely limited leg room in Economy class seats. For airplane food, it was alright.

Experience was good. Could have been better if we didn’t have to board an hour before the flight to ghana and miss relaxing time in the lounge. That process was very stressful

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

Information on your arrival and departure airports

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