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

United Airlines is the most popular carrier operating from Harlingen Valley Intl to United Kingdom

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

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

How many operators does momondo search for flights from Harlingen Valley Intl Airport to United Kingdom?

As of August 2026, there is 1 operator available to choose from for flights from Harlingen Valley Intl Airport to United Kingdom.

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

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 Harlingen Valley Intl Airport to United Kingdom.

What documentation or ID do you need to fly to United Kingdom?

The required travel and health documents for your United Kingdom trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at United Kingdom. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$471 Cheap Flights from Harlingen to the United Kingdom in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Harlingen to the United Kingdom

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:47 pm - 12:00 pm

HRL

LHR

15h 13m

1 stop

7:40 pm - 10:13 am

LHR

HRL

20h 33m

2 stops

$843Iberia

Wed, Nov 4 - Wed, Nov 11

7:10 am - 10:15 am

HRL

LHR

21h 05m

1 stop

6:35 am - 7:47 pm

LHR

HRL

19h 12m

2 stops

$871United Airlines

Sun, Nov 15 - Thu, Nov 19

7:10 am - 10:15 am

HRL

LHR

21h 05m

1 stop

6:35 am - 7:47 pm

LHR

HRL

19h 12m

2 stops

$872United Airlines

Sun, Nov 15 - Thu, Nov 19

5:05 am - 7:10 am

HRL

LHR

20h 05m

2 stops

6:35 am - 7:47 pm

LHR

HRL

19h 12m

2 stops

$874United Airlines

Sun, Nov 15 - Thu, Nov 19

2:47 pm - 12:00 pm

HRL

LHR

15h 13m

1 stop

8:20 am - 6:11 pm

LHR

HRL

15h 51m

1 stop

$876Iberia

Wed, Nov 4 - Wed, Nov 11

5:05 am - 5:55 am

HRL

LHR

18h 50m

2 stops

6:35 am - 7:47 pm

LHR

HRL

19h 12m

2 stops

$877United Airlines

Sun, Nov 15 - Thu, Nov 19

3:35 pm - 2:25 pm

HRL

LHR

16h 50m

1 stop

7:50 am - 9:58 am

LHR

HRL

32h 08m

2 stops

$885Iberia

Mon, Sep 21 - Tue, Sep 29

7:18 am - 5:00 pm

HRL

MAN

27h 42m

2 stops

11:30 am - 7:32 pm

MAN

HRL

38h 02m

2 stops

$887United Airlines

Sun, Dec 6 - Thu, Dec 10

7:18 am - 5:00 pm

HRL

MAN

27h 42m

2 stops

11:30 am - 7:32 pm

MAN

HRL

38h 02m

2 stops

$888United Airlines

Sun, Dec 6 - Thu, Dec 10

7:18 am - 5:00 pm

HRL

MAN

27h 42m

2 stops

11:30 am - 7:32 pm

MAN

HRL

38h 02m

2 stops

$889United Airlines

Sun, Dec 6 - Thu, Dec 10

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Iberia flights from Harlingen to United Kingdom

Our best Iberia deals on Harlingen to United Kingdom flight tickets

Iberia

Nov 4

HRL2:47 pmHarlingen Valley Intl

15h 13m

1 stop

LHR12:00 pmLondon Heathrow

Nov 11

LHR7:40 pmLondon Heathrow

20h 33m

2 stops

HRL10:13 amHarlingen Valley Intl

$843

Iberia

Nov 4

HRL2:47 pmHarlingen Valley Intl

15h 13m

1 stop

LHR12:00 pmLondon Heathrow

Nov 11

LHR8:20 amLondon Heathrow

15h 51m

1 stop

HRL6:11 pmHarlingen Valley Intl

$876

Iberia

Sep 21

HRL3:35 pmHarlingen Valley Intl

16h 50m

1 stop

LHR2:25 pmLondon Heathrow

Sep 29

LHR7:50 amLondon Heathrow

32h 08m

2 stops

HRL9:58 amHarlingen Valley Intl

$885

American Airlines flights from Harlingen to United Kingdom

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

American Airlines

Sep 24

HRL10:45 amHarlingen Valley Intl

16h 20m

1 stop

LHR9:05 amLondon Heathrow

Sep 28

LHR2:45 pmLondon Heathrow

14h 03m

1 stop

HRL10:48 pmHarlingen Valley Intl

$1,012

American Airlines

Sep 3

HRL5:04 pmHarlingen Valley Intl

11h 51m

1 stop

LHR10:55 amLondon Heathrow

Sep 7

LHR8:55 amLondon Heathrow

19h 59m

1 stop

HRL10:54 pmHarlingen Valley Intl

$1,061

American Airlines

Aug 20

HRL10:34 amHarlingen Valley Intl

18h 21m

1 stop

LHR10:55 amLondon Heathrow

Aug 26

LHR10:05 amLondon Heathrow

18h 49m

1 stop

HRL10:54 pmHarlingen Valley Intl

$1,103

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Wed 11/4

2:47 pm-12:00 pm

1 stop15h 13m

London Heathrow

Wed 11/11

7:40 pm-10:13 am

2 stops20h 33m

$843

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Sun 11/15

7:10 am-10:15 am

1 stop21h 05m

London Heathrow

Thu 11/19

6:35 am-7:47 pm

2 stops19h 12m

$871

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Sun 11/15

7:10 am-10:15 am

1 stop21h 05m

London Heathrow

Thu 11/19

6:35 am-7:47 pm

2 stops19h 12m

$872

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Sun 11/15

5:05 am-7:10 am

2 stops20h 05m

London Heathrow

Thu 11/19

6:35 am-7:47 pm

2 stops19h 12m

$874

Quickest round-trip

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Wed 11/4

2:47 pm-12:00 pm

1 stop15h 13m

London Heathrow

Wed 11/11

8:20 am-6:11 pm

1 stop15h 51m

$876

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Sun 11/15

5:05 am-5:55 am

2 stops18h 50m

London Heathrow

Thu 11/19

6:35 am-7:47 pm

2 stops19h 12m

$877

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Mon 9/21

3:35 pm-2:25 pm

1 stop16h 50m

London Heathrow

Tue 9/29

7:50 am-9:58 am

2 stops32h 08m

$885

HarlingenManchester

HRL - MAN

HRLMAN

Harlingen Valley Intl

Sun 12/6

7:18 am-5:00 pm

2 stops27h 42m

Manchester

Thu 12/10

11:30 am-7:32 pm

2 stops38h 02m

$887

HarlingenManchester

HRL - MAN

HRLMAN

Harlingen Valley Intl

Sun 12/6

7:18 am-5:00 pm

2 stops27h 42m

Manchester

Thu 12/10

11:30 am-7:32 pm

2 stops38h 02m

$888

HarlingenManchester

HRL - MAN

HRLMAN

Harlingen Valley Intl

Sun 12/6

7:18 am-5:00 pm

2 stops27h 42m

Manchester

Thu 12/10

11:30 am-7:32 pm

2 stops38h 02m

$889

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

How to get the cheapest flight ticket from Harlingen to United Kingdom

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

Prices

Airlines

Can stopping save me money on Harlingen to United Kingdom flights?

You could potentially save up to 29% on your flight if you consider stops on a Harlingen to United Kingdom flight.

Cheap Harlingen to United Kingdom flight deals and tips

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

Fastest flight time	12h 17m
Direct flights	None

The fastest flight from Harlingen to United Kingdom takes 12h 17m

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

Search flight deals

Frequently asked questions about flying from Harlingen to the United Kingdom

When did momondo last update prices for flights from Harlingen Valley Intl Airport to United Kingdom?
Prices for flights from Harlingen Valley Intl Airport to United Kingdom are updated daily.
How many operators does momondo search for flights from Harlingen Valley Intl Airport to United Kingdom?
As of August 2026, there is 1 operator available to choose from for flights from Harlingen Valley Intl Airport to United Kingdom.
How old do you have to be to fly from Harlingen Valley Intl Airport to United Kingdom?
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 Harlingen Valley Intl Airport to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The required travel and health documents for your United Kingdom trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at United Kingdom. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Harlingen to United Kingdom

Compare and see reviews for airlines that fly from Harlingen to United Kingdom with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $1,008	Free Cancellation	Rating 7.4 10,061 reviews		Search United Airlines flights
American Airlines	PriceFrom $1,284	Free Cancellation	Rating 7.1 11,857 reviews		Search American Airlines flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Harlingen to United Kingdom for you.

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

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

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

momondo helps you find the best flight between Harlingen and United Kingdom by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Harlingen to United Kingdom flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.