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

Departing from Harlingen to London Heathrow Airport will take you 35h 11m. The distance from Harlingen to London Heathrow Airport is about 5109 mi.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London Heathrow Airport when rainfall is around 1.6 in.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Harlingen to London Heathrow Airport as you normally would.

Most accurate provider : When it comes to deals on Harlingen-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Harlingen-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Harlingen-London Heathrow Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Harlingen-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Harlingen-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

For a flight from Harlingen to London Heathrow, you will be flying from Valley Intl. Harlingen Valley Intl (HRL) is just 3.7 mi from the center of the city. Valley Intl is the only Harlingen airport and it handles 0 outbound flights to London Heathrow per day. 0 airlines have flights to London Heathrow from Harlingen Valley Intl on a regular basis.

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

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

How can I find direct flights from Harlingen to Heathrow?

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

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

Yes. Cheapflights offers flight deals from Harlingen 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.

$462+ Cheap Flights from Harlingen to London Heathrow Airport

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Cheap flight deals from Harlingen to Heathrow

Cheapest

Best

Last-minute

One-way

Cheapest flights from Harlingen to Heathrow
Explore the most affordable flight options available from Harlingen to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 7, 2026.

Mon 11/92:26 pm -

1 stop11h 49m

Wed 11/187:40 pm -

2 stops33h 33m

Deal found 9/6

$862

Tue 10/205:05 am -

1 stop20h 50m

Tue 10/276:00 pm -

2 stops30h 47m

Deal found 9/5

$900

Sun 10/187:15 am -

1 stop18h 30m

Sun 10/257:30 am -

2 stops20h 18m

Deal found 9/3

$948

Wed 11/181:59 pm -

1 stop11h 41m

Sun 11/293:00 pm -

2 stops31h 01m

Deal found 9/6

$1,026

Mon 11/165:25 pm -

2 stops21h 10m

Wed 11/185:30 pm -

2 stops35h 18m

Deal found 9/6

$1,122

Best flights from Harlingen to Heathrow
Discover carefully curated flight deals from Harlingen to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.

Tue 10/205:05 am -

1 stop20h 50m

Tue 10/276:00 pm -

2 stops30h 47m

Deal found 9/5

$900

Sun 10/187:15 am -

1 stop18h 30m

Sun 10/257:30 am -

2 stops20h 18m

Deal found 9/3

$948

Fri 1/291:59 pm -

1 stop11h 41m

Mon 2/19:30 am -

2 stops18h 14m

Deal found 9/6

$994

Sat 1/301:59 pm -

1 stop11h 41m

Mon 2/112:05 pm -

1 stop15h 39m

Deal found 9/6

$1,012

Wed 11/181:59 pm -

1 stop11h 41m

Sun 11/293:00 pm -

2 stops31h 01m

Deal found 9/6

$1,026

Mon 11/165:25 pm -

2 stops21h 10m

Wed 11/185:30 pm -

2 stops35h 18m

Deal found 9/6

$1,122

Find flight deals from Harlingen to Heathrow

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$780 (United Airlines)
One-way from	$462 (Expedia)

Provider with most accurate pricing for Harlingen Valley Intl-London Heathrow flight deals.

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From Harlingen Valley Intl to London Heathrow

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One-way flight from Harlingen Valley Intl to London Heathrow

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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

HarlingenLondon

HRL Harlingen Valley Intl - LHR London Heathrow

HRLLHR

Harlingen Valley Intl

Mon 11/9

1:59 pm-10:15 am

1 stop14h 16m

London Heathrow

Wed 12/31

12:00 am-5:00 pm

Nonstop0h 00m

$463

HarlingenLondon

HRL Harlingen Valley Intl - LHR London Heathrow

HRLLHR

Harlingen Valley Intl

Mon 11/9

7:10 am-7:10 am

3 stops18h 00m

London Heathrow

Wed 12/31

12:00 am-5:00 pm

Nonstop0h 00m

$475

HarlingenLondon

HRL Harlingen Valley Intl - LHR London Heathrow

HRLLHR

Harlingen Valley Intl

Tue 10/20

5:05 am-7:55 am

1 stop20h 50m

London Heathrow

Tue 10/27

6:00 pm-7:47 pm

2 stops30h 47m

$900

HarlingenLondon

HRL Harlingen Valley Intl - LHR London Heathrow

HRLLHR

Harlingen Valley Intl

Sun 10/18

7:15 am-7:45 am

1 stop18h 30m

London Heathrow

Sun 10/25

7:30 am-10:48 pm

2 stops20h 18m

$948

HarlingenLondon

HRL Harlingen Valley Intl - LHR London Heathrow

HRLLHR

Harlingen Valley Intl

Fri 1/29

1:59 pm-7:40 am

1 stop11h 41m

London Heathrow

Mon 2/1

9:30 am-9:44 pm

2 stops18h 14m

$994

HarlingenLondon

HRL Harlingen Valley Intl - LHR London Heathrow

HRLLHR

Harlingen Valley Intl

Sat 1/30

1:59 pm-7:40 am

1 stop11h 41m

London Heathrow

Mon 2/1

12:05 pm-9:44 pm

1 stop15h 39m

$1,012

HarlingenLondon

HRL Harlingen Valley Intl - LHR London Heathrow

HRLLHR

Harlingen Valley Intl

Wed 11/18

1:59 pm-7:40 am

1 stop11h 41m

London Heathrow

Sun 11/29

3:00 pm-4:01 pm

2 stops31h 01m

$1,026

HarlingenLondon

HRL Harlingen Valley Intl - LHR London Heathrow

HRLLHR

Harlingen Valley Intl

Mon 11/16

5:25 pm-8:35 pm

2 stops21h 10m

London Heathrow

Wed 11/18

5:30 pm-10:48 pm

2 stops35h 18m

$1,122

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/7

Sorted by cheapest first

Most accurate provider: When it comes to deals on Harlingen-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Harlingen-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Harlingen-London Heathrow Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Harlingen-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Harlingen-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Harlingen to Heathrow

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

HRL-LHR

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.

Related info for your journey

What airport do you fly from for flights from Harlingen to London Heathrow?
For a flight from Harlingen to London Heathrow, you will be flying from Valley Intl. Harlingen Valley Intl (HRL) is just 3.7 mi from the center of the city. Valley Intl is the only Harlingen airport and it handles 0 outbound flights to London Heathrow per day. 0 airlines have flights to London Heathrow from Harlingen Valley Intl on a regular basis.
How long is the flight from Harlingen to London Heathrow Airport?
Departing from Harlingen to London Heathrow Airport will take you 35h 11m. The distance from Harlingen to London Heathrow Airport is about 5109 mi.
Can I find deals for flights from Harlingen to Heathrow that include hotel bookings?
Yes. In addition to deals on Harlingen to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Harlingen to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Harlingen to Heathrow.
Can I find deals for business class flights from Harlingen to Heathrow?
Yes. Cheapflights offers flight deals from Harlingen 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.

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$462+ Cheap flights from Harlingen (HRL) to Heathrow (LHR)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Harlingen to Heathrow with Cheapflights

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Cheap flight deals from Harlingen to Heathrow

Cheapest flights from Harlingen to HeathrowExplore the most affordable flight options available from Harlingen to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 7, 2026.

Explore the most affordable flight options available from Harlingen to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 7, 2026.

Best flights from Harlingen to HeathrowDiscover carefully curated flight deals from Harlingen to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.

Discover carefully curated flight deals from Harlingen to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.

Last-minute flights from Harlingen to HeathrowDiscover last-minute flight deals from Harlingen to Heathrow. Data last updated September 7, 2026 and is based on user searches.

Discover last-minute flight deals from Harlingen to Heathrow. Data last updated September 7, 2026 and is based on user searches.

One-way flights from Harlingen to HeathrowSearch for one-way flight options from Harlingen to Heathrow. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.

Search for one-way flight options from Harlingen to Heathrow. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.

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

Best time to book a flight from Harlingen to Heathrow

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

Related info for your journey

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

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

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

How can I find direct flights from Harlingen to Heathrow?

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

Traveling to a place near London Heathrow Airport?

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Complete your trip

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Search flights from Harlingen to Heathrow by cabin class

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Other flights to Heathrow

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Cheapest flights from Harlingen to Heathrow
Explore the most affordable flight options available from Harlingen to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 7, 2026.

Best flights from Harlingen to Heathrow
Discover carefully curated flight deals from Harlingen to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.

Last-minute flights from Harlingen to Heathrow
Discover last-minute flight deals from Harlingen to Heathrow. Data last updated September 7, 2026 and is based on user searches.

One-way flights from Harlingen to Heathrow
Search for one-way flight options from Harlingen to Heathrow. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.