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

Air Canada, United Airlines, and KLM are the most popular carriers operating from Harlingen Valley Intl to United Kingdom

What airlines fly to United Kingdom?

United Airlines, British Airways and American Airlines are the top three most popular airlines that fly to United Kingdom from Harlingen, Texas according to our data. United Airlines is the first choice among our users, with 58% of people opting to fly with this airline when traveling to United Kingdom. Keep in mind that there are 3 different airlines that fly to United Kingdom on a routine basis, so you have a few additional options to choose from.

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 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.

$499 Cheap Flights from Harlingen to the United Kingdom in 2026

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Find the cheapest flights from Harlingen, Texas to the United Kingdom

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:16 pm - 11:35 am

HRL

LHR

12h 19m

1 stop

7:30 am - 9:44 pm

LHR

HRL

20h 14m

2 stops

$783United Airlines

Sun, Aug 23 - Thu, Aug 27

5:15 am - 5:55 am

HRL

LHR

18h 40m

2 stops

9:30 am - 9:44 pm

LHR

HRL

18h 14m

2 stops

$787United Airlines

Sun, Aug 23 - Thu, Aug 27

2:00 pm - 11:35 am

HRL

LHR

15h 35m

1 stop

10:00 am - 7:29 pm

LHR

HRL

15h 29m

1 stop

$801United Airlines

Sun, Aug 23 - Thu, Aug 27

8:03 pm - 2:25 pm

HRL

LHR

12h 22m

1 stop

7:50 am - 10:51 pm

LHR

HRL

21h 01m

2 stops

$827Iberia

Wed, Apr 29 - Wed, May 6

7:27 am - 11:35 am

HRL

LHR

22h 08m

1 stop

9:30 am - 9:44 pm

LHR

HRL

18h 14m

2 stops

$830United Airlines

Sun, Aug 23 - Thu, Aug 27

2:00 pm - 7:40 am

HRL

LHR

11h 40m

1 stop

9:30 am - 9:44 pm

LHR

HRL

18h 14m

2 stops

$833United Airlines

Sun, Aug 23 - Thu, Aug 27

5:15 am - 5:55 am

HRL

LHR

18h 40m

2 stops

9:30 am - 9:44 pm

LHR

HRL

18h 14m

2 stops

$835United Airlines

Sun, Aug 23 - Thu, Aug 27

5:15 am - 6:45 am

HRL

LHR

19h 30m

2 stops

9:30 am - 9:44 pm

LHR

HRL

18h 14m

2 stops

$837United Airlines

Sun, Aug 23 - Thu, Aug 27

12:05 pm - 9:20 am

HRL

LHR

15h 15m

2 stops

9:30 am - 9:59 pm

LHR

HRL

18h 29m

2 stops

$847United Airlines

Wed, Apr 29 - Wed, May 6

5:16 pm - 11:35 am

HRL

LHR

12h 19m

1 stop

1:40 pm - 9:44 pm

LHR

HRL

14h 04m

1 stop

$848United Airlines

Sun, Aug 23 - Thu, Aug 27

Iberia flights from Harlingen, Texas to United Kingdom

Our best Iberia deals on Harlingen, Texas to United Kingdom flight tickets

Iberia

Apr 29

HRL8:03 pmHarlingen Valley Intl

12h 22m

1 stop

LHR2:25 pmLondon Heathrow

May 6

LHR7:50 amLondon Heathrow

21h 01m

2 stops

HRL10:51 pmHarlingen Valley Intl

$827

Iberia

May 1

HRL10:47 amHarlingen Valley Intl

15h 18m

1 stop

LHR8:05 amLondon Heathrow

May 7

LHR10:05 amLondon Heathrow

15h 17m

1 stop

HRL7:22 pmHarlingen Valley Intl

$911

Iberia

May 1

HRL7:53 pmHarlingen Valley Intl

12h 32m

1 stop

LHR2:25 pmLondon Heathrow

May 7

LHR6:15 amLondon Heathrow

19h 07m

2 stops

HRL7:22 pmHarlingen Valley Intl

$925

Air Canada flights from Harlingen, Texas to United Kingdom

Our best Air Canada deals on Harlingen, Texas to United Kingdom flight tickets

Air Canada

Jul 7

HRL7:20 amHarlingen Valley Intl

41h 15m

2 stops

LHR6:35 amLondon Heathrow

Jul 14

LHR2:10 pmLondon Heathrow

37h 44m

2 stops

HRL9:54 pmHarlingen Valley Intl

$1,024

Air Canada

Jun 2

HRL5:20 pmHarlingen Valley Intl

34h 40m

2 stops

LHR10:00 amLondon Heathrow

Jul 30

LHR2:05 pmLondon Heathrow

59h 44m

2 stops

HRL7:49 pmHarlingen Valley Intl

$1,340

momondo Fare Finder

Use the filters below to find and compare flights from Harlingen, Texas 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

Sun 8/23

5:16 pm-11:35 am

1 stop12h 19m

London Heathrow

Thu 8/27

7:30 am-9:44 pm

2 stops20h 14m

$783

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Sun 8/23

5:15 am-5:55 am

2 stops18h 40m

London Heathrow

Thu 8/27

9:30 am-9:44 pm

2 stops18h 14m

$787

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Sun 8/23

2:00 pm-11:35 am

1 stop15h 35m

London Heathrow

Thu 8/27

10:00 am-7:29 pm

1 stop15h 29m

$801

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Wed 4/29

8:03 pm-2:25 pm

1 stop12h 22m

London Heathrow

Wed 5/6

7:50 am-10:51 pm

2 stops21h 01m

$827

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Sun 8/23

7:27 am-11:35 am

1 stop22h 08m

London Heathrow

Thu 8/27

9:30 am-9:44 pm

2 stops18h 14m

$830

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Sun 8/23

2:00 pm-7:40 am

1 stop11h 40m

London Heathrow

Thu 8/27

9:30 am-9:44 pm

2 stops18h 14m

$833

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Sun 8/23

5:15 am-5:55 am

2 stops18h 40m

London Heathrow

Thu 8/27

9:30 am-9:44 pm

2 stops18h 14m

$835

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Sun 8/23

5:15 am-6:45 am

2 stops19h 30m

London Heathrow

Thu 8/27

9:30 am-9:44 pm

2 stops18h 14m

$837

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Wed 4/29

12:05 pm-9:20 am

2 stops15h 15m

London Heathrow

Wed 5/6

9:30 am-9:59 pm

2 stops18h 29m

$847

Quickest round-trip

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Sun 8/23

5:16 pm-11:35 am

1 stop12h 19m

London Heathrow

Thu 8/27

1:40 pm-9:44 pm

1 stop14h 04m

$848

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Harlingen, Texas 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, Texas to United Kingdom flights?

You could potentially save up to 2% on your flight if you consider stops on a Harlingen, Texas to United Kingdom flight.

Cheap Harlingen, Texas to United Kingdom flight deals and tips

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

Fastest flight time	12h 17m
Direct flights	None

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

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

Search flight deals

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 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, Texas to United Kingdom

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

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $1,008	Free Cancellation	Rating 7.4 9,439 reviews		Search United 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.