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$468+ Cheap flights from McAllen (MFE) to Heathrow (LHR)

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 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
MFE — LHR
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from McAllen to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from McAllen (MFE) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2025.

Round-trip from

$607
(Delta)

One-way from

$468
(United Airlines)

Popular in

June

Cheapest in

August

Average price

$1,147
From McAllen Miller Intl to London Heathrow
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One-way flight from McAllen Miller Intl to London Heathrow
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Highest demand for flights based on searches. 23% potential increase in price ($281 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($59 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from McAllen to Heathrow

Cheapest flights from McAllen to Heathrow
Explore the most affordable flight options available from McAllen to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This KLM deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/412:31 pmMFE - LHR
2 stops18h 59mKLM
Wed 8/138:55 pmLHR - MFE
2 stops33h 04mKLM
Deal found 7/27$530
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/35:14 pmMFE - LHR
2 stops38h 36mDelta
Wed 8/1311:45 amLHR - MFE
2 stops42h 14mDelta
Deal found 7/27$563
This Ovago deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/38:02 pmMFE - LHR
1 stop32h 48mBritish Airways
Wed 8/137:30 pmLHR - MFE
2 stops33h 12mBritish Airways
Deal found 7/27$669
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/149:50 amMFE - LHR
1 stop18h 25mUnited Airlines
Tue 11/182:30 pmLHR - MFE
2 stops37h 29mUnited Airlines
Deal found 7/28$679
This American Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/48:06 pmMFE - LHR
1 stop12h 19mAmerican Airlines
Mon 8/114:25 pmLHR - MFE
1 stop22h 28mAmerican Airlines
Deal found 7/27$742
This Iberia deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/219:33 amMFE - LHR
1 stop19h 17mIberia
Sat 8/303:10 pmLHR - MFE
1 stop13h 48mIberia
Deal found 7/27$743
This Gotogate deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/27:00 amMFE - LHR
2 stops46h 50mAir Canada
Wed 8/139:30 amLHR - MFE
2 stops36h 31mAir Canada
Deal found 7/28$1,396
This Mytrip deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1412:57 pmMFE - LHR
3 stops41h 53mMultiple Airlines
Sun 11/232:50 pmLHR - MFE
2 stops26h 49mMultiple Airlines
Deal found 7/29$1,575

Cheapflights Fare Finder

 
Customize your flight search to find flights from McAllen to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
Use the filters below to find and compare flights from McAllen to London Heathrow Airport that are best for you.

Fly from

McAllen

Fly to

Heathrow

Route

Depart

Return

Price

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Thu 9/11

12:30 pm-1:50 pm

2 stops19h 20m

London Heathrow

Thu 9/18

6:30 am-11:58 pm

2 stops23h 28m

$607

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Fri 10/24

7:10 am-6:25 am

1 stop17h 15m

London Heathrow

Fri 10/31

8:50 am-8:30 pm

2 stops16h 40m

$670

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Thu 9/11

6:05 pm-12:45 pm

1 stop12h 40m

London Heathrow

Thu 9/18

7:50 am-7:40 pm

2 stops17h 50m

$674

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Fri 11/14

9:50 am-10:15 am

1 stop18h 25m

London Heathrow

Tue 11/18

2:30 pm-9:59 pm

2 stops37h 29m

$679

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Sat 12/27

1:25 pm-11:40 am

2 stops16h 15m

London Heathrow

Sun 1/4

8:25 pm-12:07 am

2 stops33h 42m

$1,248

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Sat 12/27

5:00 am-7:10 am

2 stops20h 10m

London Heathrow

Sat 1/3

1:25 pm-1:30 pm

2 stops30h 05m

$1,413

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Fri 10/24

4:28 pm-9:30 am

3 stops35h 02m

London Heathrow

Fri 10/31

1:00 pm-2:58 pm

2 stops30h 58m

$2,465

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Sun 12/28

12:08 pm-8:15 am

1 stop14h 07m

London Heathrow

Sat 1/3

7:30 am-8:30 pm

2 stops19h 00m

$3,193

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Fri 8/22

7:00 am-7:40 am

1 stop18h 40m

$468

McAllenLondon

MFE - LHR

MFELHR

McAllen Miller Intl

Fri 8/22

7:00 am-6:30 am

3 stops17h 30m

$663

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from McAllen to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from McAllen with our price prediction graph.
Estimated round-trip 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 McAllen to London Heathrow Airport

What is the cheapest month to book a flight from McAllen to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from McAllen to London Heathrow Airport (average of $661). Flying from McAllen to London Heathrow Airport in June is currently the most expensive (average of $1,097). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Find hourly flight availability from McAllen to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2025.

When flying from McAllen to London Heathrow Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 25% versus a flight in the evening.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated July 29, 2025.
See what other customers who have flown with Delta, KLM, and United Airlines from McAllen to London Heathrow Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,977 reviews
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,893 reviews
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,822 reviews
Delta
8.0
Very good
7,977 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from McAllen to Heathrow. 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 from for flights from McAllen to London Heathrow?

    Most people fly from McAllen Miller Intl (MFE) if they book a flight from McAllen to London Heathrow. On average, Miller Intl has 0 outbound flights to London Heathrow per day from 3 airlines. McAllen Miller Intl is conveniently located just 2.0 mi from McAllen’s city center.

  • What are the cheapest airlines flying from McAllen to London Heathrow Airport round-trip?

    Currently priced at $607, Delta will fly you from McAllen to London Heathrow Airport and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and British Airways - these airlines can fly you to your destination from $670 and $674, respectively. Delta is currently priced 35% below the average price you’ll pay for this route.

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

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

  • How can I find direct flights from McAllen to Heathrow?

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from McAllen to London Heathrow Airport (average of $661). Flying from McAllen to London Heathrow Airport in June is currently the most expensive (average of $1,097). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Harrow
Canterbury
Dover
Stratford-upon-Avon
Orpington
Watford
Northampton
Gatwick
Borehamwood
Dartford
Broadway
Aylesbury
Chelmsford
Folkestone
Southend-on-Sea
Chichester
Swindon

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 McAllen to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from McAllen to Heathrow

Discover the top 3 airlines that operate flights from McAllen to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$661Average$1,081FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$680Average$997FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$711Average$1,381FlexibilityNo cancel feeOn-time69%

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