When did momondo last update prices for flights from London to Harlingen Valley Intl Airport?

Prices for flights from London to Harlingen Valley Intl Airport are refreshed on a daily basis.

How old do you have to be to fly from London to Harlingen Valley Intl Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Harlingen Valley Intl Airport.

What documentation or ID do you need to fly to Harlingen Valley Intl Airport?

The travel and health documents required for your trip to Harlingen Valley Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Harlingen Valley Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£659 Cheap Flights from London to Harlingen in 2026/27

Find the cheapest flights from London to Harlingen

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

13:20 - 22:55LHR London Heathrow-HRL Harlingen Valley Intl

39h 35m2 stops Madrid Barajas Dallas/Fort Worth

17:16 - 21:00HRL Harlingen Valley Intl-LHR London Heathrow

45h 44m2 stops Houston George Bush Intcntl Toronto Pearson Intl

£904Multiple Airlines

Sun, 14 Feb - Fri, 2 Apr

13:35 - 17:51LHR London Heathrow-HRL Harlingen Valley Intl

58h 16m2 stops Madrid Barajas Dallas/Fort Worth

14:47 - 10:50HRL Harlingen Valley Intl-LHR London Heathrow

14h 03m1 stop Dallas/Fort Worth

£929Iberia

Thu, 11 Feb - Tue, 6 Apr

13:35 - 17:51LHR London Heathrow-HRL Harlingen Valley Intl

58h 16m2 stops Madrid Barajas Dallas/Fort Worth

09:20 - 11:50HRL Harlingen Valley Intl-LHR London Heathrow

20h 30m2 stops Houston George Bush Intcntl Toronto Pearson Intl

£935Multiple Airlines

Thu, 11 Feb - Tue, 6 Apr

13:50 - 17:51LHR London Heathrow-HRL Harlingen Valley Intl

34h 01m1 stop Dallas/Fort Worth

10:47 - 09:25HRL Harlingen Valley Intl-LHR London Heathrow

16h 38m1 stop Dallas/Fort Worth

£936Iberia

Thu, 11 Feb - Tue, 6 Apr

07:30 - 22:48LHR London Heathrow-HRL Harlingen Valley Intl

21h 18m2 stops Frankfurt am Main Houston George Bush Intcntl

17:25 - 07:40HRL Harlingen Valley Intl-LHR London Heathrow

32h 15m1 stop Houston George Bush Intcntl

£941United Airlines

Wed, 4 Nov - Sun, 8 Nov

07:30 - 13:21LHR London Heathrow-HRL Harlingen Valley Intl

35h 51m2 stops Frankfurt am Main Houston George Bush Intcntl

17:25 - 20:35HRL Harlingen Valley Intl-LHR London Heathrow

21h 10m2 stops Houston George Bush Intcntl Newark

£943United Airlines

Wed, 4 Nov - Sun, 8 Nov

14:45 - 17:51LHR London Heathrow-HRL Harlingen Valley Intl

33h 06m1 stop Dallas/Fort Worth

17:16 - 21:00HRL Harlingen Valley Intl-LHR London Heathrow

45h 44m2 stops Houston George Bush Intcntl Toronto Pearson Intl

£954Multiple Airlines

Sun, 14 Feb - Fri, 2 Apr

07:30 - 22:48LHR London Heathrow-HRL Harlingen Valley Intl

21h 18m2 stops Frankfurt am Main Houston George Bush Intcntl

17:25 - 07:40HRL Harlingen Valley Intl-LHR London Heathrow

32h 15m1 stop Houston George Bush Intcntl

£965United Airlines

Wed, 4 Nov - Sun, 8 Nov

13:00 - 15:39LHR London Heathrow-HRL Harlingen Valley Intl

32h 39m2 stops Montreal Pierre Elliott Trudeau Intl Houston George Bush Intcntl

09:20 - 10:00HRL Harlingen Valley Intl-LHR London Heathrow

18h 40m2 stops Houston George Bush Intcntl Montreal Pierre Elliott Trudeau Intl

£967Air Canada

Mon, 15 Feb - Tue, 30 Mar

13:00 - 15:39LHR London Heathrow-HRL Harlingen Valley Intl

32h 39m2 stops Montreal Pierre Elliott Trudeau Intl Houston George Bush Intcntl

07:18 - 11:50HRL Harlingen Valley Intl-LHR London Heathrow

22h 32m2 stops Houston George Bush Intcntl Toronto Pearson Intl

£971Air Canada

Mon, 15 Feb - Wed, 31 Mar

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Iberia flights from London to Harlingen

Our best Iberia deals on London to Harlingen flight tickets

Iberia

11 Feb

LHR13:35London Heathrow

58h 16m

2 stops

HRL17:51Harlingen Valley Intl

6 Apr

HRL14:47Harlingen Valley Intl

14h 03m

1 stop

LHR10:50London Heathrow

£929

Iberia

11 Feb

LHR13:50London Heathrow

34h 01m

1 stop

HRL17:51Harlingen Valley Intl

6 Apr

HRL10:47Harlingen Valley Intl

16h 38m

1 stop

LHR09:25London Heathrow

£936

Iberia

15 Feb

LHR06:15London Heathrow

22h 40m

2 stops

HRL22:55Harlingen Valley Intl

31 Mar

HRL10:44Harlingen Valley Intl

13h 36m

1 stop

LHR06:20London Heathrow

£992

United Airlines flights from London to Harlingen

Our best United Airlines deals on London to Harlingen flight tickets

United Airlines

4 Nov

LHR07:30London Heathrow

21h 18m

2 stops

HRL22:48Harlingen Valley Intl

8 Nov

HRL17:25Harlingen Valley Intl

32h 15m

1 stop

LHR07:40London Heathrow

£941

United Airlines

4 Nov

LHR07:30London Heathrow

35h 51m

2 stops

HRL13:21Harlingen Valley Intl

8 Nov

HRL17:25Harlingen Valley Intl

21h 10m

2 stops

LHR20:35London Heathrow

£943

United Airlines

4 Nov

LHR07:30London Heathrow

21h 18m

2 stops

HRL22:48Harlingen Valley Intl

8 Nov

HRL17:25Harlingen Valley Intl

32h 15m

1 stop

LHR07:40London Heathrow

£965

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonHarlingen

LHR London Heathrow - HRL Harlingen Valley Intl

LHRHRL

London Heathrow

Sun 14/2

13:20-22:55

2 stops39h 35m

Harlingen Valley Intl

Fri 2/4

17:16-21:00

2 stops45h 44m

£904

LondonHarlingen

LHR London Heathrow - HRL Harlingen Valley Intl

LHRHRL

London Heathrow

Thu 11/2

13:35-17:51

2 stops58h 16m

Harlingen Valley Intl

Tue 6/4

14:47-10:50

1 stop14h 03m

£929

LondonHarlingen

LHR London Heathrow - HRL Harlingen Valley Intl

LHRHRL

London Heathrow

Thu 11/2

13:35-17:51

2 stops58h 16m

Harlingen Valley Intl

Tue 6/4

09:20-11:50

2 stops20h 30m

£935

Fastest return journey

LondonHarlingen

LHR London Heathrow - HRL Harlingen Valley Intl

LHRHRL

London Heathrow

Thu 11/2

13:50-17:51

1 stop34h 01m

Harlingen Valley Intl

Tue 6/4

10:47-09:25

1 stop16h 38m

£936

LondonHarlingen

LHR London Heathrow - HRL Harlingen Valley Intl

LHRHRL

London Heathrow

Wed 4/11

07:30-22:48

2 stops21h 18m

Harlingen Valley Intl

Sun 8/11

17:25-07:40

1 stop32h 15m

£941

LondonHarlingen

LHR London Heathrow - HRL Harlingen Valley Intl

LHRHRL

London Heathrow

Wed 4/11

07:30-13:21

2 stops35h 51m

Harlingen Valley Intl

Sun 8/11

17:25-20:35

2 stops21h 10m

£943

LondonHarlingen

LHR London Heathrow - HRL Harlingen Valley Intl

LHRHRL

London Heathrow

Sun 14/2

14:45-17:51

1 stop33h 06m

Harlingen Valley Intl

Fri 2/4

17:16-21:00

2 stops45h 44m

£954

LondonHarlingen

LHR London Heathrow - HRL Harlingen Valley Intl

LHRHRL

London Heathrow

Wed 4/11

07:30-22:48

2 stops21h 18m

Harlingen Valley Intl

Sun 8/11

17:25-07:40

1 stop32h 15m

£965

LondonHarlingen

LHR London Heathrow - HRL Harlingen Valley Intl

LHRHRL

London Heathrow

Mon 15/2

13:00-15:39

2 stops32h 39m

Harlingen Valley Intl

Tue 30/3

09:20-10:00

2 stops18h 40m

£967

LondonHarlingen

LHR London Heathrow - HRL Harlingen Valley Intl

LHRHRL

London Heathrow

Mon 15/2

13:00-15:39

2 stops32h 39m

Harlingen Valley Intl

Wed 31/3

07:18-11:50

2 stops22h 32m

£971

Flights are sorted by cheapest return flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

How to get the cheapest flight ticket from London to Harlingen

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from London to Harlingen Valley Intl?

Iberia is the most popular carrier operating from London to Harlingen Valley Intl

When to book flights from London to Harlingen

Are you open to changing your travel dates? Check out the ideal times to fly from London to Harlingen according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap London to Harlingen (LON to HRL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Harlingen

Best price found	£659
Fastest flight time	20h 48m
Direct flights	None

The best one-way flight to Harlingen from London in the past 72 hours is £659. The best return flight deal from London to Harlingen found on momondo in the last 72 hours is £904.

The fastest flight from London to Harlingen takes 20h 48m

There are no direct flights from London to Harlingen. There are no popular flight routes from London to Harlingen.

Search flight deals

Frequently asked questions about flying from London to Harlingen

How far is London to Harlingen Valley Intl by plane?
Harlingen Valley Intl is 5125.1 mi away from London. Typically, this will take 20h 48m by plane in normal conditions.
When did momondo last update prices for flights from London to Harlingen Valley Intl Airport?
Prices for flights from London to Harlingen Valley Intl Airport are refreshed on a daily basis.
How old do you have to be to fly from London to Harlingen Valley Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Harlingen Valley Intl Airport.
What documentation or ID do you need to fly to Harlingen Valley Intl Airport?
The travel and health documents required for your trip to Harlingen Valley Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Harlingen Valley Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from London to Harlingen?

It is quick and easy to find London to Harlingen flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Harlingen that suits you.

Can I find flights from London to Harlingen with flexible booking policies on momondo?

All flight searches from London to Harlingen on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from London to Harlingen?

momondo provides multiple filters to help you find the best flight to Harlingen from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from London to Harlingen right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Harlingen from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.