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

Prices for flights from United Kingdom to Harlingen Valley Intl Airport are updated daily.

How old do you have to be to fly from United Kingdom 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 United Kingdom to Harlingen Valley Intl Airport.

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

The necessary travel and health documents for your Harlingen Valley Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£1,235 Cheap Flights from the United Kingdom to Harlingen in 2026/27

Find the cheapest flights from the United Kingdom to Harlingen

Return

One-way

Last minute

Recent return flight deals from the United Kingdom to Harlingen

Enter your travel dates to find the best prices.

06:30 - 21:59LHR London Heathrow-HRL Harlingen Valley Intl

21h 29m2 stops Frankfurt am Main Houston George Bush Intcntl

17:22 - 07:40HRL Harlingen Valley Intl-LHR London Heathrow

32h 18m1 stop Houston George Bush Intcntl

£1,293United Airlines

Sat, 12 Dec - Sat, 19 Dec

08:20 - 22:54LHR London Heathrow-HRL Harlingen Valley Intl

20h 34m1 stop Dallas/Fort Worth

17:22 - 07:10HRL Harlingen Valley Intl-LHR London Heathrow

31h 48m2 stops Houston George Bush Intcntl Montreal Pierre Elliott Trudeau Intl

£1,315Multiple Airlines

Fri, 18 Dec - Sat, 2 Jan

12:05 - 21:59LHR London Heathrow-HRL Harlingen Valley Intl

15h 54m1 stop Houston George Bush Intcntl

14:05 - 10:15HRL Harlingen Valley Intl-LHR London Heathrow

14h 10m1 stop Houston George Bush Intcntl

£1,350United Airlines

Sat, 12 Dec - Sat, 19 Dec

12:05 - 19:39LHR London Heathrow-HRL Harlingen Valley Intl

13h 34m1 stop Houston George Bush Intcntl

17:22 - 07:40HRL Harlingen Valley Intl-LHR London Heathrow

32h 18m1 stop Houston George Bush Intcntl

£1,370United Airlines

Fri, 18 Dec - Sat, 2 Jan

07:40 - 21:59LHR London Heathrow-HRL Harlingen Valley Intl

20h 19m2 stops Chicago O'Hare Intl Houston George Bush Intcntl

14:05 - 10:50HRL Harlingen Valley Intl-LHR London Heathrow

14h 45m2 stops Houston George Bush Intcntl Washington, D.C. Dulles Intl

£1,500United Airlines

Sat, 12 Dec - Sat, 19 Dec

12:15 - 09:19LHR London Heathrow-HRL Harlingen Valley Intl

27h 04m2 stops Reykjavik Keflavik Intl Minneapolis St Paul

17:22 - 07:10HRL Harlingen Valley Intl-LHR London Heathrow

31h 48m2 stops Houston George Bush Intcntl Montreal Pierre Elliott Trudeau Intl

£1,531Multiple Airlines

Fri, 18 Dec - Sat, 2 Jan

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United Airlines flights from United Kingdom to Harlingen

Our best United Airlines deals on United Kingdom to Harlingen flight tickets

United Airlines

4 Nov

LHR08:00London Heathrow

20h 48m

2 stops

HRL22:48Harlingen Valley Intl

8 Nov

HRL17:25Harlingen Valley Intl

21h 10m

2 stops

LHR20:35London Heathrow

£1,235

United Airlines

4 Nov

LHR08:00London Heathrow

20h 48m

2 stops

HRL22:48Harlingen Valley Intl

8 Nov

HRL17:25Harlingen Valley Intl

21h 10m

2 stops

LHR20:35London Heathrow

£1,238

United Airlines

4 Nov

LHR12:05London Heathrow

16h 43m

1 stop

HRL22:48Harlingen Valley Intl

8 Nov

HRL17:25Harlingen Valley Intl

32h 15m

1 stop

LHR07:40London Heathrow

£1,240

momondo Fare Finder

Use the filters below to find and compare flights from the United Kingdom to Harlingen that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonHarlingen

LHR London Heathrow - HRL Harlingen Valley Intl

LHRHRL

London Heathrow

Sat 12/12

06:30-21:59

2 stops21h 29m

Harlingen Valley Intl

Sat 19/12

17:22-07:40

1 stop32h 18m

£1,293

LondonHarlingen

LHR London Heathrow - HRL Harlingen Valley Intl

LHRHRL

London Heathrow

Fri 18/12

08:20-22:54

1 stop20h 34m

Harlingen Valley Intl

Sat 2/1

17:22-07:10

2 stops31h 48m

£1,315

Fastest return journey

LondonHarlingen

LHR London Heathrow - HRL Harlingen Valley Intl

LHRHRL

London Heathrow

Sat 12/12

12:05-21:59

1 stop15h 54m

Harlingen Valley Intl

Sat 19/12

14:05-10:15

1 stop14h 10m

£1,350

LondonHarlingen

LHR London Heathrow - HRL Harlingen Valley Intl

LHRHRL

London Heathrow

Fri 18/12

12:05-19:39

1 stop13h 34m

Harlingen Valley Intl

Sat 2/1

17:22-07:40

1 stop32h 18m

£1,370

LondonHarlingen

LHR London Heathrow - HRL Harlingen Valley Intl

LHRHRL

London Heathrow

Sat 12/12

07:40-21:59

2 stops20h 19m

Harlingen Valley Intl

Sat 19/12

14:05-10:50

2 stops14h 45m

£1,500

LondonHarlingen

LHR London Heathrow - HRL Harlingen Valley Intl

LHRHRL

London Heathrow

Fri 18/12

12:15-09:19

2 stops27h 04m

Harlingen Valley Intl

Sat 2/1

17:22-07:10

2 stops31h 48m

£1,531

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from United Kingdom 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

How long does it take to fly to Harlingen?

The flight from United Kingdom to Harlingen depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from London (a popular airport in United Kingdom) to McAllen (the most popular airport in Harlingen), then the flight time is 13h 45m on average. If you fly from Manchester (another popular airport in United Kingdom) to McAllen, then the average flight time is 21h 43m.

Cheap United Kingdom to Harlingen flight deals and tips

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

Best price found	£1,293
Fastest flight time	20h 48m
Direct flights	None

The best flight deal from United Kingdom to Harlingen found on momondo in the last 72 hours is £1,293

The fastest flight from United Kingdom to Harlingen takes 20h 48m

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

Search flight deals

Frequently asked questions about flying from the United Kingdom to Harlingen

When did momondo last update prices for flights from United Kingdom to Harlingen Valley Intl Airport?
Prices for flights from United Kingdom to Harlingen Valley Intl Airport are updated daily.
How old do you have to be to fly from United Kingdom 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 United Kingdom to Harlingen Valley Intl Airport.
What documentation or ID do you need to fly to Harlingen Valley Intl Airport?
The necessary travel and health documents for your Harlingen Valley Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

Finding the right flight to Harlingen from United Kingdom is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Harlingen quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to Harlingen from United Kingdom which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from United Kingdom to Harlingen?

Once you have performed a search for United Kingdom to Harlingen flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Harlingen, momondo offers a useful price alert feature which will track prices for flights to Harlingen from United Kingdom and alert you when they change.