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?

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 United Kingdom.

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

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

£374 Cheap Flights from Harlingen to the United Kingdom in 2026

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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

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 United Kingdom

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

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

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 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 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

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

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?
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 United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The travel and health documents required for your trip to United Kingdom 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 United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

It is quick and easy to find Harlingen to United Kingdom flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to United Kingdom that suits you.

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

Yes. All flights to United Kingdom from Harlingen on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Harlingen to United Kingdom.

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.