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 were last updated today.

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 necessary travel and health documents for your London 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.

£374 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 return flights

Enter your travel dates to find the best prices.

17:16 - 11:35

HRL

LHR

12h 19m

1 stop

07:30 - 21:44

LHR

HRL

20h 14m

2 stops

£587United Airlines

Sun, 23 Aug - Thu, 27 Aug

05:15 - 05:55

HRL

LHR

18h 40m

2 stops

09:30 - 21:44

LHR

HRL

18h 14m

2 stops

£590United Airlines

Sun, 23 Aug - Thu, 27 Aug

14:00 - 11:35

HRL

LHR

15h 35m

1 stop

10:00 - 19:29

LHR

HRL

15h 29m

1 stop

£601United Airlines

Sun, 23 Aug - Thu, 27 Aug

20:03 - 14:25

HRL

LHR

12h 22m

1 stop

07:50 - 22:51

LHR

HRL

21h 01m

2 stops

£620Iberia

Wed, 29 Apr - Wed, 6 May

07:27 - 11:35

HRL

LHR

22h 08m

1 stop

09:30 - 21:44

LHR

HRL

18h 14m

2 stops

£623United Airlines

Sun, 23 Aug - Thu, 27 Aug

14:00 - 07:40

HRL

LHR

11h 40m

1 stop

09:30 - 21:44

LHR

HRL

18h 14m

2 stops

£625United Airlines

Sun, 23 Aug - Thu, 27 Aug

05:15 - 05:55

HRL

LHR

18h 40m

2 stops

09:30 - 21:44

LHR

HRL

18h 14m

2 stops

£626United Airlines

Sun, 23 Aug - Thu, 27 Aug

05:15 - 06:45

HRL

LHR

19h 30m

2 stops

09:30 - 21:44

LHR

HRL

18h 14m

2 stops

£628United Airlines

Sun, 23 Aug - Thu, 27 Aug

12:05 - 09:20

HRL

LHR

15h 15m

2 stops

09:30 - 21:59

LHR

HRL

18h 29m

2 stops

£635United Airlines

Wed, 29 Apr - Wed, 6 May

17:16 - 11:35

HRL

LHR

12h 19m

1 stop

13:40 - 21:44

LHR

HRL

14h 04m

1 stop

£636United Airlines

Sun, 23 Aug - Thu, 27 Aug

Iberia flights from Harlingen, Texas to London

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

Iberia

29 Apr

HRL20:03Harlingen Valley Intl

12h 22m

1 stop

LHR14:25London Heathrow

6 May

LHR07:50London Heathrow

21h 01m

2 stops

HRL22:51Harlingen Valley Intl

£620

Iberia

1 May

HRL10:47Harlingen Valley Intl

15h 18m

1 stop

LHR08:05London Heathrow

7 May

LHR10:05London Heathrow

15h 17m

1 stop

HRL19:22Harlingen Valley Intl

£683

Iberia

1 May

HRL19:53Harlingen Valley Intl

12h 32m

1 stop

LHR14:25London Heathrow

7 May

LHR06:15London Heathrow

19h 07m

2 stops

HRL19:22Harlingen Valley Intl

£694

Air Canada flights from Harlingen, Texas to London

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

Air Canada

7 Jul

HRL07:20Harlingen Valley Intl

41h 15m

2 stops

LHR06:35London Heathrow

14 Jul

LHR14:10London Heathrow

37h 44m

2 stops

HRL21:54Harlingen Valley Intl

£768

Air Canada

2 Jun

HRL17:20Harlingen Valley Intl

34h 40m

2 stops

LHR10:00London Heathrow

30 Jul

LHR14:05London Heathrow

59h 44m

2 stops

HRL19:49Harlingen Valley Intl

£1,005

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Sun 23/8

17:16-11:35

1 stop12h 19m

London Heathrow

Thu 27/8

07:30-21:44

2 stops20h 14m

£587

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Sun 23/8

05:15-05:55

2 stops18h 40m

London Heathrow

Thu 27/8

09:30-21:44

2 stops18h 14m

£590

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Sun 23/8

14:00-11:35

1 stop15h 35m

London Heathrow

Thu 27/8

10:00-19:29

1 stop15h 29m

£601

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Wed 29/4

20:03-14:25

1 stop12h 22m

London Heathrow

Wed 6/5

07:50-22:51

2 stops21h 01m

£620

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Sun 23/8

07:27-11:35

1 stop22h 08m

London Heathrow

Thu 27/8

09:30-21:44

2 stops18h 14m

£623

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Sun 23/8

14:00-07:40

1 stop11h 40m

London Heathrow

Thu 27/8

09:30-21:44

2 stops18h 14m

£625

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Sun 23/8

05:15-05:55

2 stops18h 40m

London Heathrow

Thu 27/8

09:30-21:44

2 stops18h 14m

£626

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Sun 23/8

05:15-06:45

2 stops19h 30m

London Heathrow

Thu 27/8

09:30-21:44

2 stops18h 14m

£628

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Wed 29/4

12:05-09:20

2 stops15h 15m

London Heathrow

Wed 6/5

09:30-21:59

2 stops18h 29m

£635

Fastest return journey

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Sun 23/8

17:16-11:35

1 stop12h 19m

London Heathrow

Thu 27/8

13:40-21:44

1 stop14h 04m

£636

Flights are sorted by cheapest return 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

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

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 return 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?
There are 5125.1 mi between Harlingen Valley Intl and London. By plane, this route typically takes 12h 17m.
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 were last updated today.
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 necessary travel and health documents for your London 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.

Eastbourne

Milton Keynes

Luton

Gatwick

Slough

Maidstone

Southend-on-Sea

Ipswich

Canterbury

Wembley

Ilford

Chelmsford

Guildford

Hayes

Dover

Folkestone

Ramsgate

Worthing

Colchester

Bedford

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Harlingen to London . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to London from Harlingen with this policy.

How can momondo help me find flights from Harlingen to London?

momondo provides multiple filters to help you find the best flight to London from Harlingen. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Harlingen to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.

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Cheap flights from Harlingen, Texas to London from £374

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 19/4. 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

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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

What is the cheapest airline that flies from Harlingen Valley Intl 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

Travelling to a place near London?

Why use momondo?

An easier way to manage your London trip

We make it super easy to schedule, organise 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

Cabin classes currently available on flights to London

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

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