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

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

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

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 London to Harlingen Valley Intl Airport.

What documentation or ID do you need to fly to Harlingen Valley Intl Airport?

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

£776 Cheap Flights from London to Harlingen in 2025/26

1 adult

0 bags

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Find the cheapest flights from London to Harlingen

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

08:20 - 22:51LHR-HRL

20h 31m2 stops

12:10 - 10:10HRL-LHR

17h 00m2 stops

£830American Airlines

Find Deal

Sat, 7 Mar - Wed, 11 Mar

10:15 - 18:16LHR-HRL

14h 01m1 stop

12:10 - 10:10HRL-LHR

17h 00m2 stops

£832American Airlines

Find Deal

Sat, 7 Mar - Wed, 11 Mar

08:30 - 21:44LHR-HRL

19h 14m2 stops

09:20 - 07:30HRL-LHR

17h 10m1 stop

£840United Airlines

Find Deal

Sat, 7 Mar - Wed, 11 Mar

15:00 - 22:51LHR-HRL

13h 51m1 stop

10:04 - 08:15HRL-LHR

17h 11m1 stop

£854American Airlines

Find Deal

Sat, 7 Mar - Wed, 11 Mar

10:15 - 18:16LHR-HRL

14h 01m1 stop

12:10 - 06:50HRL-LHR

13h 40m1 stop

£856American Airlines

Find Deal

Sat, 7 Mar - Wed, 11 Mar

American Airlines flights from London to Harlingen, Texas

Our best American Airlines deals on London to Harlingen, Texas flight tickets

American Airlines

7 Mar

LHR08:20London Heathrow

20h 31m

2 stops

HRL22:51Harlingen Valley Intl

11 Mar

HRL12:10Harlingen Valley Intl

17h 00m

2 stops

LHR10:10London Heathrow

£830

Find similar

American Airlines

7 Mar

LHR10:15London Heathrow

14h 01m

1 stop

HRL18:16Harlingen Valley Intl

11 Mar

HRL12:10Harlingen Valley Intl

17h 00m

2 stops

LHR10:10London Heathrow

£832

Find similar

American Airlines

7 Mar

LHR15:00London Heathrow

13h 51m

1 stop

HRL22:51Harlingen Valley Intl

11 Mar

HRL10:04Harlingen Valley Intl

17h 11m

1 stop

LHR08:15London Heathrow

£854

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Sat 7/3

08:20-22:51

2 stops20h 31m

Harlingen Valley Intl

Wed 11/3

12:10-10:10

2 stops17h 00m

£830

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Sat 7/3

10:15-18:16

1 stop14h 01m

Harlingen Valley Intl

Wed 11/3

12:10-10:10

2 stops17h 00m

£832

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Sat 7/3

08:30-21:44

2 stops19h 14m

Harlingen Valley Intl

Wed 11/3

09:20-07:30

1 stop17h 10m

£840

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Sat 7/3

15:00-22:51

1 stop13h 51m

Harlingen Valley Intl

Wed 11/3

10:04-08:15

1 stop17h 11m

£854

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Sat 7/3

10:15-18:16

1 stop14h 01m

Harlingen Valley Intl

Wed 11/3

12:10-06:50

1 stop13h 40m

£856

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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

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 day to depart on your flight to Harlingen, Texas?

The cheapest day to depart from London to Harlingen, Texas is on a Friday when prices can be found for as low as £882. The most expensive day to fly to Harlingen, Texas is Wednesday, with ticket prices averaging around £943.

When to book flights from London to Harlingen, Texas

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

Estimated return price

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

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

Direct flights	None

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

Search flight deals

How far is London to Harlingen Valley Intl by plane?
Harlingen Valley Intl is 5125.1 mi away from London. Typically, this will take 13h 51m by plane in normal conditions.
When did momondo last update prices for flights from London to Harlingen Valley Intl Airport?
Prices for flights from London to Harlingen Valley Intl Airport are refreshed on a daily basis.
How old do you have to be to fly from London to Harlingen Valley Intl Airport?
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 London to Harlingen Valley Intl Airport.
What documentation or ID do you need to fly to Harlingen Valley Intl Airport?
The travel and health documents required for your trip to Harlingen Valley Intl 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 Harlingen Valley Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from London to Harlingen, Texas?
momondo data reveals that the most frequently booked airline on the route from London to Harlingen, Texas is United Airlines, representing 100% of all bookings.

Why use momondo?

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

It is quick and easy to find London to Harlingen 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 Harlingen that suits you.

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

All flight searches from London to Harlingen on momondo can be filtered to show those which offer flexible booking policies.

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

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

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

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