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

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

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

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 Heathrow Airport.

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

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

$517 Cheap Flights from Harlingen to London Heathrow Airport in 2026/27

Find the cheapest flights from Harlingen to London

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

2:13 pm - 1:05 pmHRL Harlingen Valley Intl-LHR London Heathrow

16h 52m1 stop Minneapolis St Paul

12:25 pm - 1:23 pmLHR London Heathrow-HRL Harlingen Valley Intl

30h 58m1 stop Minneapolis St Paul

$805Delta

Thu, Oct 15 - Thu, Oct 22

2:13 pm - 1:05 pmHRL Harlingen Valley Intl-LHR London Heathrow

16h 52m1 stop Minneapolis St Paul

12:25 pm - 1:23 pmLHR London Heathrow-HRL Harlingen Valley Intl

30h 58m1 stop Minneapolis St Paul

$807Delta

Fri, Oct 16 - Thu, Oct 22

2:13 pm - 1:15 pmHRL Harlingen Valley Intl-LHR London Heathrow

17h 02m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

12:25 pm - 1:23 pmLHR London Heathrow-HRL Harlingen Valley Intl

30h 58m1 stop Minneapolis St Paul

$811Delta

Fri, Oct 16 - Thu, Oct 22

5:05 am - 1:20 pmHRL Harlingen Valley Intl-LHR London Heathrow

26h 15m2 stops Houston George Bush Intcntl Vancouver Intl

7:25 am - 7:44 pmLHR London Heathrow-HRL Harlingen Valley Intl

18h 19m2 stops Munich Franz Josef Strauss Houston George Bush Intcntl

$867United Airlines

Fri, Oct 16 - Thu, Oct 22

5:05 am - 5:55 amHRL Harlingen Valley Intl-LHR London Heathrow

18h 50m2 stops Houston George Bush Intcntl Newark

9:30 am - 9:52 pmLHR London Heathrow-HRL Harlingen Valley Intl

18h 22m2 stops Frankfurt am Main Houston George Bush Intcntl

$868United Airlines

Thu, Oct 15 - Thu, Oct 22

7:15 am - 11:35 amHRL Harlingen Valley Intl-LHR London Heathrow

22h 20m1 stop Houston George Bush Intcntl

9:30 am - 9:52 pmLHR London Heathrow-HRL Harlingen Valley Intl

18h 22m2 stops Frankfurt am Main Houston George Bush Intcntl

$868United Airlines

Thu, Oct 15 - Thu, Oct 22

7:15 am - 7:55 amHRL Harlingen Valley Intl-LHR London Heathrow

18h 40m1 stop Houston George Bush Intcntl

7:30 am - 1:21 pmLHR London Heathrow-HRL Harlingen Valley Intl

34h 51m2 stops Frankfurt am Main Houston George Bush Intcntl

$875United Airlines

Tue, Oct 20 - Sun, Oct 25

5:05 am - 1:20 pmHRL Harlingen Valley Intl-LHR London Heathrow

26h 15m2 stops Houston George Bush Intcntl Vancouver Intl

7:30 am - 1:21 pmLHR London Heathrow-HRL Harlingen Valley Intl

34h 51m2 stops Frankfurt am Main Houston George Bush Intcntl

$875United Airlines

Tue, Oct 20 - Sun, Oct 25

2:00 pm - 7:55 amHRL Harlingen Valley Intl-LHR London Heathrow

11h 55m1 stop Houston George Bush Intcntl

7:30 am - 10:48 pmLHR London Heathrow-HRL Harlingen Valley Intl

20h 18m2 stops Frankfurt am Main Houston George Bush Intcntl

$875United Airlines

Tue, Oct 20 - Sun, Oct 25

9:20 am - 10:15 amHRL Harlingen Valley Intl-LHR London Heathrow

18h 55m1 stop Houston George Bush Intcntl

6:00 pm - 6:32 pmLHR London Heathrow-HRL Harlingen Valley Intl

30h 32m2 stops Toronto Pearson Intl Houston George Bush Intcntl

$892United Airlines

Fri, Feb 26 - Sat, Mar 13

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Air Canada flights from Harlingen to London Heathrow Airport

Our best Air Canada deals on Harlingen to London Heathrow Airport flight tickets

Air Canada

Oct 20

HRL5:05 amHarlingen Valley Intl

19h 30m

2 stops

LHR6:35 amLondon Heathrow

Oct 25

LHR6:00 pmLondon Heathrow

27h 01m

2 stops

HRL4:01 pmHarlingen Valley Intl

$910

Air Canada

Dec 20

HRL7:25 amHarlingen Valley Intl

41h 05m

2 stops

LHR6:30 amLondon Heathrow

Jan 1

LHR11:10 amLondon Heathrow

40h 49m

2 stops

HRL9:59 pmHarlingen Valley Intl

$1,384

Air Canada

Dec 22

HRL5:22 pmHarlingen Valley Intl

55h 08m

2 stops

LHR6:30 amLondon Heathrow

Jan 2

LHR6:00 pmLondon Heathrow

49h 30m

2 stops

HRL1:30 pmHarlingen Valley Intl

$1,619

United Airlines flights from Harlingen to London Heathrow Airport

Our best United Airlines deals on Harlingen to London Heathrow Airport flight tickets

United Airlines

Oct 19

HRL5:05 amHarlingen Valley Intl

26h 15m

2 stops

LHR1:20 pmLondon Heathrow

Oct 26

LHR6:35 amLondon Heathrow

38h 26m

2 stops

HRL4:01 pmHarlingen Valley Intl

$865

United Airlines

Oct 15

HRL7:15 amHarlingen Valley Intl

22h 20m

1 stop

LHR11:35 amLondon Heathrow

Oct 22

LHR9:30 amLondon Heathrow

18h 22m

2 stops

HRL9:52 pmHarlingen Valley Intl

$868

United Airlines

Oct 20

HRL5:05 amHarlingen Valley Intl

26h 15m

2 stops

LHR1:20 pmLondon Heathrow

Oct 25

LHR7:30 amLondon Heathrow

34h 51m

2 stops

HRL1:21 pmHarlingen Valley Intl

$875

momondo Fare Finder

Use the filters below to find and compare flights from Harlingen to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HarlingenLondon

HRL Harlingen Valley Intl - LHR London Heathrow

HRLLHR

Harlingen Valley Intl

Thu 10/15

2:13 pm-1:05 pm

1 stop16h 52m

London Heathrow

Thu 10/22

12:25 pm-1:23 pm

1 stop30h 58m

$805

HarlingenLondon

HRL Harlingen Valley Intl - LHR London Heathrow

HRLLHR

Harlingen Valley Intl

Fri 10/16

2:13 pm-1:05 pm

1 stop16h 52m

London Heathrow

Thu 10/22

12:25 pm-1:23 pm

1 stop30h 58m

$807

HarlingenLondon

HRL Harlingen Valley Intl - LHR London Heathrow

HRLLHR

Harlingen Valley Intl

Fri 10/16

2:13 pm-1:15 pm

2 stops17h 02m

London Heathrow

Thu 10/22

12:25 pm-1:23 pm

1 stop30h 58m

$811

HarlingenLondon

HRL Harlingen Valley Intl - LHR London Heathrow

HRLLHR

Harlingen Valley Intl

Fri 10/16

5:05 am-1:20 pm

2 stops26h 15m

London Heathrow

Thu 10/22

7:25 am-7:44 pm

2 stops18h 19m

$867

HarlingenLondon

HRL Harlingen Valley Intl - LHR London Heathrow

HRLLHR

Harlingen Valley Intl

Thu 10/15

5:05 am-5:55 am

2 stops18h 50m

London Heathrow

Thu 10/22

9:30 am-9:52 pm

2 stops18h 22m

$868

HarlingenLondon

HRL Harlingen Valley Intl - LHR London Heathrow

HRLLHR

Harlingen Valley Intl

Thu 10/15

7:15 am-11:35 am

1 stop22h 20m

London Heathrow

Thu 10/22

9:30 am-9:52 pm

2 stops18h 22m

$868

HarlingenLondon

HRL Harlingen Valley Intl - LHR London Heathrow

HRLLHR

Harlingen Valley Intl

Tue 10/20

7:15 am-7:55 am

1 stop18h 40m

London Heathrow

Sun 10/25

7:30 am-1:21 pm

2 stops34h 51m

$875

HarlingenLondon

HRL Harlingen Valley Intl - LHR London Heathrow

HRLLHR

Harlingen Valley Intl

Tue 10/20

5:05 am-1:20 pm

2 stops26h 15m

London Heathrow

Sun 10/25

7:30 am-1:21 pm

2 stops34h 51m

$875

Quickest round-trip

HarlingenLondon

HRL Harlingen Valley Intl - LHR London Heathrow

HRLLHR

Harlingen Valley Intl

Tue 10/20

2:00 pm-7:55 am

1 stop11h 55m

London Heathrow

Sun 10/25

7:30 am-10:48 pm

2 stops20h 18m

$875

HarlingenLondon

HRL Harlingen Valley Intl - LHR London Heathrow

HRLLHR

Harlingen Valley Intl

Fri 2/26

9:20 am-10:15 am

1 stop18h 55m

London Heathrow

Sat 3/13

6:00 pm-6:32 pm

2 stops30h 32m

$892

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first

How to get the cheapest flight ticket from Harlingen to London Heathrow Airport

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 Harlingen Valley Intl to London Heathrow?

Iberia, United Airlines, and British Airways are the most popular carriers operating from Harlingen Valley Intl to London Heathrow

When to book flights from Harlingen to London Heathrow Airport

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

Estimated round-trip price

Cheap Harlingen to London Heathrow Airport (HRL to LHR) flight deals and tips

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

Best Price Found	$517
Fastest flight time	11h 40m
Direct flights	None

The best one-way flight to London Heathrow Airport from Harlingen in the past 72 hours is $517. The best round-trip flight deal from Harlingen to London Heathrow Airport found on momondo in the last 72 hours is $805.

The fastest flight from Harlingen to London Heathrow Airport takes 11h 40m

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

Search flight deals

Frequently asked questions about flying from Harlingen to London Heathrow Airport

How far is Harlingen Valley Intl to London Heathrow by plane?
The straight-line distance from Harlingen Valley Intl to London Heathrow is 5112.7 mi. Flights usually cover this in 11h 40m, 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 Heathrow Airport?
Prices for flights from Harlingen Valley Intl Airport to London Heathrow Airport are refreshed on a daily basis.
How old do you have to be to fly from Harlingen Valley Intl Airport to London Heathrow Airport?
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 Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents required for your trip to London Heathrow 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 London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Hounslow

Gatwick

Milton Keynes

Croydon

Luton

Stratford-upon-Avon

Hayes

Dover

Wembley

Kingston upon Thames

Richmond

Stansted

Watford

Harrow

Cobham

Worthing

Eastbourne

Slough

Hook

Uxbridge

Why use momondo?

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

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

Yes. momondo allows you to filter the results for Harlingen to London flights to just show those with flexible booking policies.

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?

Yes momondo offers price alerts on flights to London from Harlingen. 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.

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Cheap flights from Harlingen to London from $517

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 to London departing on 12/16. 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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Air Canada flights from Harlingen to London Heathrow Airport

Our best Air Canada deals on Harlingen to London Heathrow Airport flight tickets

United Airlines flights from Harlingen to London Heathrow Airport

Our best United Airlines deals on Harlingen to London Heathrow Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Harlingen to London Heathrow Airport that are best for you.

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How to get the cheapest flight ticket from Harlingen to London Heathrow Airport

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

When to book flights from Harlingen to London Heathrow Airport

Cheap Harlingen to London Heathrow Airport (HRL to LHR) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Harlingen to London Heathrow Airport

Traveling to a place near London?

Why use momondo?

An easier way to manage your London Heathrow Airport 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 London

Popular cities in the United Kingdom

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