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Flights to Harlingen Valley Intl

£818 Cheap flights to Harlingen, Texas

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight to Harlingen, Texas departing on 7/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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

Cheap return flights

Enter your travel dates to find the best prices.
Air Canada Logo
13:00 - 11:26
LHR
-
HRL
28h 26m2 stops
Air Canada Logo
12:10 - 07:10
HRL
-
LHR
37h 00m2 stops
£818Air Canada
Wed, 7 Jan - Wed, 14 Jan
United Airlines Logo
10:25 - 21:59
LHR
-
HRL
17h 34m2 stops
United Airlines Logo
12:10 - 07:30
HRL
-
LHR
13h 20m1 stop
£819United Airlines
Wed, 7 Jan - Wed, 14 Jan
United Airlines Logo
07:30 - 21:59
LHR
-
HRL
20h 29m2 stops
United Airlines Logo
07:00 - 07:55
HRL
-
LHR
18h 55m2 stops
£826United Airlines
Thu, 22 Jan - Mon, 26 Jan
United Airlines Logo
08:30 - 21:59
LHR
-
HRL
19h 29m2 stops
United Airlines Logo
07:00 - 05:55
HRL
-
LHR
16h 55m2 stops
£830United Airlines
Thu, 22 Jan - Mon, 26 Jan
United Airlines Logo
12:05 - 20:01
LHR
-
HRL
13h 56m1 stop
United Airlines Logo
09:20 - 07:30
HRL
-
LHR
16h 10m1 stop
£848United Airlines
Thu, 22 Jan - Mon, 26 Jan
United Airlines Logo
10:00 - 20:01
LHR
-
HRL
16h 01m1 stop
United Airlines Logo
09:20 - 07:30
HRL
-
LHR
16h 10m1 stop
£849United Airlines
Thu, 22 Jan - Mon, 26 Jan
United Airlines Logo
12:05 - 20:01
LHR
-
HRL
13h 56m1 stop
United Airlines Logo
09:20 - 07:30
HRL
-
LHR
16h 10m1 stop
£853United Airlines
Thu, 22 Jan - Mon, 26 Jan
United Airlines Logo
06:00 - 16:06
BHX
-
HRL
40h 06m2 stops
United Airlines Logo
12:10 - 12:45
HRL
-
BHX
18h 35m2 stops
£875United Airlines
Thu, 22 Jan - Mon, 26 Jan
United Airlines Logo
06:00 - 11:26
BHX
-
HRL
35h 26m2 stops
United Airlines Logo
09:20 - 12:45
HRL
-
BHX
21h 25m2 stops
£876United Airlines
Thu, 22 Jan - Mon, 26 Jan
Iberia Logo
16:30 - 10:36
LHR
-
HRL
24h 06m1 stop
Iberia Logo
18:44 - 06:50
HRL
-
LHR
30h 06m1 stop
£1,231Iberia
Wed, 7 Jan - Wed, 14 Jan

momondo Fare Finder

 
Locate flights to Harlingen Valley Intl that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 279,928 searches and data was last updated on 12 December 2025.
Use the filters below to find and compare flights to Harlingen, Texas that are best for you.

Fly from

Route

Depart

Return

Price

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Wed 7/1

13:00-11:26

2 stops28h 26m

Harlingen Valley Intl

Wed 14/1

12:10-07:10

2 stops37h 00m

£818

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Wed 7/1

10:25-21:59

2 stops17h 34m

Harlingen Valley Intl

Wed 14/1

12:10-07:30

1 stop13h 20m

£819

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Thu 22/1

07:30-21:59

2 stops20h 29m

Harlingen Valley Intl

Mon 26/1

07:00-07:55

2 stops18h 55m

£826

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Thu 22/1

08:30-21:59

2 stops19h 29m

Harlingen Valley Intl

Mon 26/1

07:00-05:55

2 stops16h 55m

£830

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Thu 22/1

12:05-20:01

1 stop13h 56m

Harlingen Valley Intl

Mon 26/1

09:20-07:30

1 stop16h 10m

£848

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Thu 22/1

10:00-20:01

1 stop16h 01m

Harlingen Valley Intl

Mon 26/1

09:20-07:30

1 stop16h 10m

£849

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Thu 22/1

12:05-20:01

1 stop13h 56m

Harlingen Valley Intl

Mon 26/1

09:20-07:30

1 stop16h 10m

£853

BirminghamHarlingen

BHX - HRL

BHXHRL

Birmingham

Thu 22/1

06:00-16:06

2 stops40h 06m

Harlingen Valley Intl

Mon 26/1

12:10-12:45

2 stops18h 35m

£875

BirminghamHarlingen

BHX - HRL

BHXHRL

Birmingham

Thu 22/1

06:00-11:26

2 stops35h 26m

Harlingen Valley Intl

Mon 26/1

09:20-12:45

2 stops21h 25m

£876

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Wed 7/1

16:30-10:36

1 stop24h 06m

Harlingen Valley Intl

Wed 14/1

18:44-06:50

1 stop30h 06m

£1,231

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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Harlingen, Texas flights insights and trends

Explore insights for your Harlingen, Texas flight to craft the best travel plan

What is the cheapest day to depart on your flight to Harlingen, Texas?

The cheapest day to depart from United Kingdom to Harlingen, Texas is on a Friday when prices can be found for as low as £877. The most expensive day to fly to Harlingen, Texas is Wednesday, with ticket prices averaging around £937.

Cheap Harlingen, Texas flight deals and tips

Summary info about Harlingen, Texas flight prices, duration and airlines

Best Round-Trip Price

£818

Fastest flight time

28h 26m
The best round-trip flight price to Harlingen from United Kingdom in the last 72 hours is £818 (London Heathrow to Harlingen Valley Intl).
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The fastest flight to Harlingen from United Kingdom takes 28h 26m (London Heathrow to Harlingen Valley Intl).
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Frequently asked questions about flying to Harlingen, Texas

Is there an alternative airport near Harlingen, Texas?

Those flying to Harlingen, Texas could potentially find better pricing at Harlingen Valley Intl Airport (4 mi from Harlingen, Texas city centre) or Brownsville South Padre Is. Intl Airport (26 mi from Harlingen, Texas city centre) depending on the month and departure airport.

Is there a cheaper alternative to flying into Harlingen, Texas?

Prices vary based on where travellers are departing from, but on average, the cheapest airport to fly to in Harlingen, Texas is Brownsville South Padre Is. Intl Airport where the average price is £111. Users typically find the best prices when using momondo’s Airport-to-Airport Pricing Tool.

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

Prices for flights to Harlingen Valley Intl Airport are updated daily.

How many operators does momondo search for flights to Harlingen Valley Intl Airport?

There is 1 operator available for flights to Harlingen Valley Intl Airport as of December 2025.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel to Harlingen Valley Intl Airport.

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

The required travel and health documents for your Harlingen Valley Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Harlingen Valley Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

We help find the flight that best suits your needs; momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight for you.

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

Flights to Harlingen with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights to Harlingen?

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

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

Of course. momondo tracks the price of Harlingen flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to Harlingen, Texas

Popular Flights to Harlingen, Texas

Popular routes according to searches in the past day on momondo
London to Harlingen Valley Intl Flightsfrom £1,112
Birmingham to Harlingen Valley Intl Flightsfrom £1,149
Manchester to Harlingen Valley Intl Flightsfrom £1,150