How long is the flight from London Heathrow Airport to McAllen?

For as low as £667, American Airlines can have you in McAllen from London Heathrow Airport in 20h 44m. London Heathrow Airport and McAllen are separated by a distance of 5135 mi.

What is the cheapest airline to fly from London Heathrow Airport to McAllen round-trip?

According to our current data, British Airways (£608), offers the cheapest pricing from London Heathrow Airport to McAllen.

What is the cheapest day to fly from London Heathrow Airport to McAllen?

Travellers seeking maximum savings on their London Heathrow Airport to McAllen flight should consider departing on Saturday mornings when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in McAllen ranges from 23.0 - 114.0 inches per month. September is typically the wettest month, when rainfall can reach 114.0 mm. November is typically the driest time to visit McAllen when rainfall is around 23.0 mm.

If weather is an important factor for your trip to McAllen, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 31.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 16.0 C).

What is the cheapest day to fly round-trip from London Heathrow Airport to McAllen?

Leaving on a Friday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 8% on the overall cost on flights from London Heathrow Airport to McAllen.

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

The best pricing can be found in the month of March. Prices to McAllen from London Heathrow Airport average £838. You can even find prices in March for less than £838, as users have found deals to McAllen from as low as £532. The month of July appears to be one of the more expensive times to travel to McAllen from London Heathrow Airport. Flying in the targeted month can save you up to 54%.

What is the cheapest time of day to fly from LHR to MFE?

When flying from London Heathrow Airport to McAllen, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly into for flights to McAllen from London Heathrow?

Located just 2.0 mi from the city center, McAllen Miller Intl is the airport most travelers will use when flying to McAllen from London Heathrow. Booking flights from London Heathrow to Miller Intl (MFE) should be relatively easy as there are 0 daily inbound flights from London Heathrow from 1 airline.

Can I find deals for flights from Heathrow to McAllen that include hotel bookings?

Yes. In addition to deals on Heathrow to McAllen flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Heathrow to McAllen?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to McAllen.

Can I find deals for business class flights from Heathrow to McAllen?

Yes. Cheapflights offers flight deals from Heathrow to McAllen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£409+ Flights from London Heathrow Airport to McAllen

Q: What’s the cheapest stopover airport for flights from London Heathrow Airport to McAllen?

Houston (IAH) is the most affordable one-stop option, with an average return flight price of £911.

Cheap flight deals from Heathrow to McAllen

Round-trip from	£667
One-way from	£409
Popular in	July
Cheapest in	March
Average price	£689

American Airlines
8/11-12/11
4 total stops
38h 53m total
London to McAllen

Search Deals

4/2
2 total stops
27h 14m total
London to McAllen

Search Deals

Highest demand for flights based on searches. 16% potential increase in price (£118 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (£34 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

Find flight deals from Heathrow to McAllen

Cheapest flights from Heathrow to McAllen
Explore the most affordable flight options available from Heathrow to McAllen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.

Sat 8/1108:35LHR - MFE

2 stops20h 44mAmerican Airlines

Wed 12/1114:49MFE - LHR

1 stop11h 46mAmerican Airlines

Deal found 10/9£667

Mon 22/908:40LHR - MFE

2 stops21h 18mDelta

Mon 29/917:18MFE - LHR

2 stops14h 12mDelta

Deal found 10/9£671

Sat 8/1112:05LHR - MFE

1 stop15h 54mUnited Airlines

Wed 12/1109:50MFE - LHR

1 stop15h 40mUnited Airlines

Deal found 10/9£683

Mon 22/913:40LHR - MFE

1 stop14h 07mUnited Airlines

Mon 29/914:05MFE - LHR

2 stops14h 35mUnited Airlines

Deal found 10/9£684

Fri 10/1007:30LHR - MFE

2 stops31h 23mUnited Airlines

Fri 17/1017:15MFE - LHR

1 stop12h 20mUnited Airlines

Deal found 10/9£753

Fri 10/1013:40LHR - MFE

1 stop14h 17mLufthansa

Fri 17/1012:14MFE - LHR

1 stop13h 26mLufthansa

Deal found 10/9£767

Sun 26/1010:00LHR - MFE

1 stop16h 59mUnited Airlines

Sun 2/1117:00MFE - LHR

1 stop32h 30mUnited Airlines

Deal found 11/9£774

Sun 26/1011:45LHR - MFE

2 stops41h 14mDelta

Sun 2/1117:14MFE - LHR

2 stops38h 36mDelta

Deal found 11/9£777

Wed 17/915:10LHR - MFE

1 stop13h 40mMultiple Airlines

Tue 23/910:53MFE - LHR

2 stops16h 32mMultiple Airlines

Deal found 11/9£1,154

Best flights from Heathrow to McAllen
Discover carefully curated flight deals from Heathrow to McAllen that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 September 2025.

Sat 8/1108:35LHR - MFE

2 stops20h 44mAmerican Airlines

Wed 12/1111:56MFE - LHR

2 stops18h 09mAmerican Airlines

Deal found 10/9£667

Mon 22/908:40LHR - MFE

2 stops21h 18mDelta

Mon 29/917:18MFE - LHR

2 stops14h 12mDelta

Deal found 10/9£671

Sat 8/1112:05LHR - MFE

1 stop15h 54mUnited Airlines

Wed 12/1109:50MFE - LHR

1 stop15h 40mUnited Airlines

Deal found 10/9£683

Mon 22/913:40LHR - MFE

1 stop14h 07mUnited Airlines

Mon 29/917:15MFE - LHR

1 stop12h 20mUnited Airlines

Deal found 10/9£684

Last-minute flights from Heathrow to McAllen
Discover last-minute flight deals from Heathrow to McAllen. Data last updated 12 September 2025 and is based on user searches.

Wed 17/910:30LHR - MFE

1 stop18h 20mBritish Airways

Tue 23/918:23MFE - LHR

1 stop12h 22mBritish Airways

Deal found 11/9£1,154

Wed 17/909:30LHR - MFE

2 stops29h 25mMultiple Airlines

Tue 23/912:10MFE - LHR

2 stops17h 35mMultiple Airlines

Deal found 11/9£1,183

Mon 22/908:40LHR - MFE

2 stops21h 18mDelta

Mon 29/917:18MFE - LHR

2 stops14h 12mDelta

Deal found 10/9£671

Mon 22/913:40LHR - MFE

1 stop14h 07mUnited Airlines

Mon 29/914:05MFE - LHR

2 stops14h 35mUnited Airlines

Deal found 10/9£684

Fri 10/1007:30LHR - MFE

2 stops31h 23mUnited Airlines

Fri 17/1017:15MFE - LHR

1 stop12h 20mUnited Airlines

Deal found 10/9£753

Fri 10/1013:40LHR - MFE

1 stop14h 17mLufthansa

Fri 17/1012:14MFE - LHR

1 stop13h 26mLufthansa

Deal found 10/9£767

Sun 26/1010:00LHR - MFE

1 stop16h 59mUnited Airlines

Sun 2/1117:00MFE - LHR

1 stop32h 30mUnited Airlines

Deal found 11/9£774

Sun 26/1011:45LHR - MFE

2 stops41h 14mDelta

Sun 2/1117:14MFE - LHR

2 stops38h 36mDelta

Deal found 11/9£777

One-way flights from Heathrow to McAllen
Search for one-way flight options from Heathrow to McAllen. Find affordable one-way fares based on user searches. Data last updated 12 September 2025.

Wed 4/214:50LHR - MFE

2 stops27h 14mMultiple Airlines

Deal found 11/9£409

Tue 3/214:50LHR - MFE

2 stops28h 09mMultiple Airlines

Deal found 11/9£415

Thu 5/214:50LHR - MFE

2 stops27h 54mMultiple Airlines

Deal found 11/9£441

Fri 6/214:50LHR - MFE

2 stops48h 31mMultiple Airlines

Deal found 11/9£444

Sat 7/212:15LHR - MFE

2 stops27h 06mMultiple Airlines

Deal found 11/9£484

Sun 8/216:15LHR - MFE

2 stops36h 05mBritish Airways

Deal found 11/9£511

Tue 3/215:00LHR - MFE

1 stop13h 20mBritish Airways

Deal found 11/9£549

Fri 6/215:00LHR - MFE

1 stop13h 20mBritish Airways

Deal found 11/9£592

Fri 6/215:00LHR - MFE

1 stop13h 20mIberia

Deal found 11/9£611

Thu 5/210:35LHR - MFE

1 stop17h 45mAmerican Airlines

Deal found 11/9£612

Mon 9/220:15LHR - MFE

3 stops51h 12mMultiple Airlines

Deal found 11/9£643

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to McAllen that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Sat 8/11

08:35-23:19

2 stops20h 44m

McAllen Miller Intl

Wed 12/11

11:56-12:05

2 stops18h 09m

£667

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Mon 22/9

08:40-23:58

2 stops21h 18m

McAllen Miller Intl

Mon 29/9

17:18-13:30

2 stops14h 12m

£671

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Sat 8/11

12:05-21:59

1 stop15h 54m

McAllen Miller Intl

Wed 12/11

09:50-07:30

1 stop15h 40m

£683

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Mon 22/9

13:40-21:47

1 stop14h 07m

McAllen Miller Intl

Mon 29/9

17:15-11:35

1 stop12h 20m

£684

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Wed 4/2

14:50-12:04

2 stops27h 14m

£409

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Thu 5/2

14:50-12:44

2 stops27h 54m

£441

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Sat 7/2

12:15-09:21

2 stops27h 06m

£484

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Mon 9/2

18:10-22:20

2 stops34h 10m

£511

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Tue 3/2

15:00-22:20

1 stop13h 20m

£549

LondonMcAllen

LHR - MFE

LHRMFE

London Heathrow

Wed 4/2

15:00-22:20

1 stop13h 20m

£549

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Showing 1-10 of 14 results

Best time to book a flight from Heathrow to McAllen

Have a flexible travel schedule? Discover the best time to fly to McAllen from Heathrow with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to McAllen

What’s the top stopover airport for flights from London Heathrow Airport to McAllen?

Dallas (DFW) – chosen by Cheapflights users on 78% of one-stop itineraries from London Heathrow Airport to McAllen on Cheapflights.

What’s the fastest stopover option from London Heathrow Airport to McAllen?

Flights via Dallas (DFW) have the shortest average one-way travel time for one-stop routes: 13h 49m.

What’s the fastest stopover option from London Heathrow Airport to McAllen?

Flights via Dallas (DFW) have the shortest average one-way travel time for one-stop routes: 13h 49m.

Which airport typically offers the quickest stopover for flights from London Heathrow Airport to McAllen?

Flights via Houston (IAH) offer the fastest connection on this route, with an average stopover time of 1h 40m.

Reviews of airlines servicing McAllen

Read reviews from past customers who have flown with British Airways from London Heathrow Airport to McAllen. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

British Airways

6.7

Okay

7,361 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.

British Airways

6.7

Okay

7,361 reviews

British Airways

6.7

Okay

7,361 reviews

Check prices

Reviews

1 / 20

6.0

Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.

Related info for your journey

What airport do you fly into for flights to McAllen from London Heathrow?
Located just 2.0 mi from the city center, McAllen Miller Intl is the airport most travelers will use when flying to McAllen from London Heathrow. Booking flights from London Heathrow to Miller Intl (MFE) should be relatively easy as there are 0 daily inbound flights from London Heathrow from 1 airline.
How long is the flight from London Heathrow Airport to McAllen?
For as low as £667, American Airlines can have you in McAllen from London Heathrow Airport in 20h 44m. London Heathrow Airport and McAllen are separated by a distance of 5135 mi.
What is the cheapest airline to fly from London Heathrow Airport to McAllen round-trip?
According to our current data, British Airways (£608), offers the cheapest pricing from London Heathrow Airport to McAllen.
Can I find deals for flights from Heathrow to McAllen that include hotel bookings?
Yes. In addition to deals on Heathrow to McAllen flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to McAllen?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to McAllen.
Can I find deals for business class flights from Heathrow to McAllen?
Yes. Cheapflights offers flight deals from Heathrow to McAllen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Heathrow to McAllen

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Top airline flying from Heathrow to McAllen

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£608	Average£731	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

Fly with Cheapflights

How does Cheapflights help users find flights from Heathrow to McAllen?

Deals for Heathrow to McAllen flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to McAllen?

Cheapflights helps you find that perfect flight to McAllen from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Heathrow to McAllen with no change fees?

Need flexible booking options for your flight to McAllen from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Heathrow to McAllen become cheaper?

Of course! You can now track prices for flights from Heathrow to McAllen and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from London Heathrow Airport to McAllen from £409

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/2. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to McAllen

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Heathrow to McAllen

Cheapest flights from Heathrow to McAllenExplore the most affordable flight options available from Heathrow to McAllen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.

Explore the most affordable flight options available from Heathrow to McAllen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to McAllen that are best for you.

Best time to book a flight from Heathrow to McAllen

Have a flexible travel schedule? Discover the best time to fly to McAllen from Heathrow with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to McAllen

What’s the top stopover airport for flights from London Heathrow Airport to McAllen?

What’s the fastest stopover option from London Heathrow Airport to McAllen?

What’s the fastest stopover option from London Heathrow Airport to McAllen?

Which airport typically offers the quickest stopover for flights from London Heathrow Airport to McAllen?

Reviews of airlines servicing McAllen

Read reviews from past customers who have flown with British Airways from London Heathrow Airport to McAllen. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to McAllen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to McAllen from London Heathrow?

How long is the flight from London Heathrow Airport to McAllen?

What is the cheapest airline to fly from London Heathrow Airport to McAllen round-trip?

Can I find deals for flights from Heathrow to McAllen that include hotel bookings?

How can I find direct flights from Heathrow to McAllen?

Can I find deals for business class flights from Heathrow to McAllen?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to McAllen

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Heathrow to McAllen

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to McAllen?

Why should you use Cheapflights to find cheap flight tickets from Heathrow to McAllen?

Can Cheapflights find flights from Heathrow to McAllen with no change fees?

Can Cheapflights notify me if prices for flights from Heathrow to McAllen become cheaper?

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Cheapest flights from Heathrow to McAllen
Explore the most affordable flight options available from Heathrow to McAllen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.