MFE - LHR

$314 Find Cheap Flights from McAllen to London Heathrow Airport

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 7/15. 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, 0 bags

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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Everything you should know

Cheapest round-trip
$751
Typical prices: $790-$933
British Airways
Tue 8/18Mon 9/7
MFE - LHR • 1 stop
Cheapest one-way
$314
British Airways
Wed 7/15
MFE - LHR • 1 stop
Top airlines
Cheapest • from $751 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between McAllen and London. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $1,501 (round-trip)
Shortest trip • 12h 01m (one-way)
Insights
Insights
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to London!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from McAllen to London (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 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

Tue, Aug 18 - Mon, Sep 7
British Airways Logo
3:23 pm - 9:00 am
MFE
-
LHR
11h 37m
1 stop
British Airways Logo
8:00 pm - 10:39 pm
LHR
-
MFE
32h 39m
2 stops
$751British Airways
Tue, Aug 18 - Mon, Sep 7
British Airways Logo
8:12 pm - 2:25 pm
MFE
-
LHR
12h 13m
1 stop
British Airways Logo
4:30 pm - 7:32 pm
LHR
-
MFE
33h 02m
2 stops
$780British Airways
Tue, Aug 18 - Mon, Sep 7
British Airways Logo
3:23 pm - 12:10 pm
MFE
-
LHR
14h 47m
1 stop
British Airways Logo
6:10 pm - 10:39 pm
LHR
-
MFE
34h 29m
2 stops
$788British Airways
Tue, Aug 18 - Mon, Sep 7
British Airways Logo
3:23 pm - 10:55 am
MFE
-
LHR
13h 32m
1 stop
British Airways Logo
2:25 pm - 10:39 pm
LHR
-
MFE
14h 14m
1 stop
$795British Airways
Tue, Aug 18 - Mon, Sep 7
British Airways Logo
3:23 pm - 9:00 am
MFE
-
LHR
11h 37m
1 stop
British Airways Logo
8:00 pm - 10:39 pm
LHR
-
MFE
32h 39m
2 stops
$801British Airways
Thu, Sep 10 - Wed, Sep 23
KLM Logo
12:48 pm - 1:15 pm
MFE
-
LHR
18h 27m
2 stops
KLM Logo
8:55 pm - 11:59 pm
LHR
-
MFE
33h 04m
2 stops
$809KLM
Thu, Sep 10 - Wed, Sep 23
Iberia Logo
6:14 pm - 12:50 pm
MFE
-
LHR
12h 36m
1 stop
Iberia Logo
11:30 am - 12:17 am
LHR
-
MFE
18h 47m
2 stops
$814Iberia
Tue, Aug 18 - Mon, Sep 7
Multiple Airlines Logo
9:33 am - 10:55 am
MFE
-
LHR
19h 22m
1 stop
Multiple Airlines Logo
12:55 pm - 12:15 am
LHR
-
MFE
17h 20m
1 stop
$830Multiple Airlines
Tue, Aug 18 - Mon, Sep 7
Multiple Airlines Logo
10:38 am - 10:55 am
MFE
-
LHR
18h 17m
1 stop
Multiple Airlines Logo
12:55 pm - 10:39 pm
LHR
-
MFE
15h 44m
1 stop
$831Multiple Airlines
Thu, Sep 10 - Wed, Sep 23
British Airways Logo
12:05 pm - 9:05 am
MFE
-
LHR
15h 00m
1 stop
British Airways Logo
11:00 am - 6:02 pm
LHR
-
MFE
13h 02m
1 stop
$832British Airways
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 Heathrow Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from McAllen to London Heathrow Airport departing in August.

Good to know

Low seasonSeptember
Cheapest flight$314
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly and prices are also 32% lower on average.
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 $314 for a one-way ticket and $751 for a round-trip.

  • 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?

    Star Alliance, and oneworld are the airline alliances operating flights between McAllen and London Heathrow Airport, with Star Alliance 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 $1,576 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 $1,576 and an overall rating of 7.1.

  • 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.

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 9423 reviews
7.1Entertainment
7.7Boarding
6.6Food
8.1Crew
7.3Comfort
Airline reviews

Terrible because it was cancelled due to volcanic ash clouds in Guatemala while all other airlines kept flying. Had to pay for a hotel to stay overnight in Houston and try to fly next day.

2.0 MediocreAnonymous, Feb 2026
IAH - GUA
Read more United Airlines reviews

Terrible because it was cancelled due to volcanic ash clouds in Guatemala while all other airlines kept flying. Had to pay for a hotel to stay overnight in Houston and try to fly next day.

Overall we had a good experience during our flight from San Francisco to Houston.

Airport terminal was outdated, flight was on a small jet with no wifi

The crew made our experience extremely bad. They were rude and didn’t have anything for kids.

Do not like the size of the overhead bin. I think staff should monitor the size of suitcases that are being carried on by passengers to ensure they meet the size requirement.

The power at the seat didn't work and the seat itself was difficult to adjust - this was a business class seat. Flight attendant gave me miles to compensate. The attendant was very professional and on top of his game the entire flight.

Delayed, toilets did not flush, pilot parked to far away from Gate

I like flying first class, and United has a nice one

Some flight attendants were great others were cranky. Seats were very tight and sitting on an aisle was very hard as the carts and people walking constantly bumped shoulder and arm.

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

Good level of service. Comfortable airplane. However, security is always a hassle at LHR. I always try to avoid that airport at all cost if possible.

Everything smooth. The only thing is that my connecting flight in the US to my final destination was delayed. The time changed 4 times. For the rest, everything on time without issues

My flight to London from Philadelphia was cancelled due to weather.

Disliked having to wait a little longer to disembark from the plan when we landed in London

Food should be better quality. Video screens have poor resolution and the library of movies is poor. The other airlines are much better.

The trip was smooth but the crew were very abrupt, snatching things before finished and being quite snappy when asked questions.

My wife and I love to travel, so we fly a lot. We've already logged 381,075 miles and with practically every major airline. But this flight was very disappointing. It started off well, with no delays and a new plane. But when lunchtime approached, all that good impression was ruined. Instead of white tablecloths, we were offered small, dark placemats, which, as it turned out, were perfectly adequate for the food. All the food offered—and my wife and I only took fish, and the meat—was not just bad, it was downright disgusting and not heated enough. The same applies to the appetizers. This was the first time in many years of traveling that we've been offered such disgusting food.

Lost luggage stuck no clothes and no word after 2 days leaving on cruise no stuff or clothes

Don’t know they cancelled the flight day before I was to leave. They sent a email at 9:00 pm at night saying they cancelled. That is the smooth way to say we don’t want your business! I think they didn’t have enough people booking so they cancelled the flight! It’s all about the money anymore there is no honesty in business.

The flight was canceled 3 hours after original take off time

Worth every penny to upgrade to BC. Treated and felt more like First Class

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

We waited at BOS at the gate for an hour and couldn’t get a drink or anything. Once in the air the service, food and ride was excellent.

My enetertainmnet screen was broken. Lost my bags. Almost missed my flight do to connection issues with (despite a request) ZERO help from crew. Food was edible. Potatoes pretty good even

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

The airline was not clear about a new departure time so we got to the airport early anyway. The flight left early which was great because of weather. The check in process was very easy and staff were friendly and helpful. The crew was great and our flight was very good.

Awful it always is unfortunately is the only way to fly direct to london

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

Information on your arrival and departure airports