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

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

What airlines fly to London?

United Airlines, British Airways and American Airlines are the top three most popular airlines that fly to London from Harlingen, Texas according to our data. United Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to London. Keep in mind that there are 3 different airlines that fly to London 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 London?

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

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Harlingen Valley Intl Airport to London.

What documentation or ID do you need to fly to London?

The travel and health documents required for your trip to London 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 London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$499 Cheap Flights from Harlingen to London in 2026

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Find the cheapest flights from Harlingen, Texas to London

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 London

Our best Iberia deals on Harlingen, Texas to London 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 London

Our best Air Canada deals on Harlingen, Texas to London 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

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 London

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 London flights?

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

When to book flights from Harlingen, Texas to London

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

Estimated round-trip price

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

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

Fastest flight time	12h 17m
Direct flights	None

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

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

Search flight deals

How far is Harlingen Valley Intl to London by plane?
Harlingen Valley Intl and London are 5125.1 mi apart from one another. Flights usually cover this in 12h 17m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Harlingen Valley Intl Airport to London?
Prices for flights from Harlingen Valley Intl Airport to London are refreshed on a daily basis.
How old do you have to be to fly from Harlingen Valley Intl Airport to London?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Harlingen Valley Intl Airport to London.
What documentation or ID do you need to fly to London?
The travel and health documents required for your trip to London 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 London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Gatwick

Hounslow

Milton Keynes

Luton

Dover

Slough

Crawley

Wembley

Hayes

Dartford

Croydon

Harrow

Watford

Brentwood

Guildford

Stansted

Cobham

Folkestone

Romford

Richmond

Why use momondo?

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

Finding the right flight to London from Harlingen 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 London quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to London 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 London?

momondo helps you find the best flight between Harlingen and London 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 London right now. Can momondo alert me if prices change?

Price alerts on flights to London from Harlingen are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your London trip

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Cheap flights from Harlingen, Texas to London from $499

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Harlingen, Texas to London departing on 4/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Iberia flights from Harlingen, Texas to London

Our best Iberia deals on Harlingen, Texas to London flight tickets

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

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How to get the cheapest flight ticket from Harlingen, Texas to London

Can stopping save me money on Harlingen, Texas to London flights?

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

What airlines fly to London?

When to book flights from Harlingen, Texas to London

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

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

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Direct flights

Traveling to a place near London?

Why use momondo?

An easier way to manage your London trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London

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List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

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