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Cheap flights from the United Kingdom to Harlingen from £581

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to Harlingen 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.
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0 bags
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Find the cheapest flights from the United Kingdom to Harlingen

Recent return flight deals from the United Kingdom to Harlingen

Enter your travel dates to find the best prices.
American Airlines Logo
12:10 - 23:21LHR-HRL
17h 11m2 stops
American Airlines Logo
20:07 - 06:50HRL-LHR
28h 43m1 stop
£768American Airlines
Find Deal
Wed, 11 Feb - Sun, 15 Feb
American Airlines Logo
10:35 - 18:14LHR-HRL
13h 39m1 stop
American Airlines Logo
20:07 - 06:50HRL-LHR
28h 43m1 stop
£770American Airlines
Find Deal
Wed, 11 Feb - Sun, 15 Feb
American Airlines Logo
11:40 - 23:21LHR-HRL
17h 41m2 stops
American Airlines Logo
10:35 - 09:30HRL-LHR
16h 55m2 stops
£798American Airlines
Find Deal
Wed, 11 Feb - Sun, 15 Feb
American Airlines Logo
10:15 - 23:21LHR-HRL
19h 06m2 stops
American Airlines Logo
14:43 - 10:25HRL-LHR
13h 42m2 stops
£801American Airlines
Find Deal
Wed, 11 Feb - Sun, 15 Feb
American Airlines Logo
07:45 - 23:21MAN-HRL
21h 36m2 stops
American Airlines Logo
06:02 - 16:30HRL-MAN
28h 28m2 stops
£868American Airlines
Find Deal
Thu, 22 Jan - Mon, 26 Jan
American Airlines Logo
07:45 - 23:21MAN-HRL
21h 36m2 stops
American Airlines Logo
15:22 - 15:10HRL-MAN
17h 48m2 stops
£871American Airlines
Find Deal
Thu, 22 Jan - Mon, 26 Jan
United Airlines Logo
06:00 - 21:59MAN-HRL
21h 59m2 stops
United Airlines Logo
07:00 - 17:00HRL-MAN
28h 00m2 stops
£876United Airlines
Find Deal
Thu, 22 Jan - Mon, 26 Jan
Delta Logo
06:15 - 14:39BHX-HRL
38h 24m2 stops
Delta Logo
15:39 - 17:50HRL-BHX
44h 11m2 stops
£888Delta
Find Deal
Wed, 21 Jan - Sun, 25 Jan
Delta Logo
06:15 - 14:39BHX-HRL
38h 24m2 stops
Delta Logo
15:39 - 17:50HRL-BHX
44h 11m2 stops
£934Delta
Find Deal
Wed, 21 Jan - Sun, 25 Jan

American Airlines flights from United Kingdom to Harlingen, Texas

Our best American Airlines deals on United Kingdom to Harlingen, Texas flight tickets
American Airlines
11 Feb
LHR15:00London Heathrow
14h 21m
1 stop
HRL23:21Harlingen Valley Intl
15 Feb
HRL20:07Harlingen Valley Intl
28h 43m
1 stop
LHR06:50London Heathrow
£768
Find similar
American Airlines
11 Feb
LHR10:35London Heathrow
13h 39m
1 stop
HRL18:14Harlingen Valley Intl
15 Feb
HRL20:07Harlingen Valley Intl
28h 43m
1 stop
LHR06:50London Heathrow
£770
Find similar
American Airlines
11 Feb
LHR11:40London Heathrow
17h 41m
2 stops
HRL23:21Harlingen Valley Intl
15 Feb
HRL10:35Harlingen Valley Intl
16h 55m
2 stops
LHR09:30London Heathrow
£798
Find similar

Delta flights from United Kingdom to Harlingen, Texas

Our best Delta deals on United Kingdom to Harlingen, Texas flight tickets
Delta
21 Jan
BHX06:15Birmingham
38h 24m
2 stops
HRL14:39Harlingen Valley Intl
25 Jan
HRL15:39Harlingen Valley Intl
44h 11m
2 stops
BHX17:50Birmingham
£888
Find similar
Delta
21 Jan
BHX06:15Birmingham
38h 24m
2 stops
HRL14:39Harlingen Valley Intl
25 Jan
HRL15:39Harlingen Valley Intl
44h 11m
2 stops
BHX17:50Birmingham
£934
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from United Kingdom to Harlingen, Texas that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 27 November 2025.
Use the filters below to find and compare flights from the United Kingdom to Harlingen, Texas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Wed 11/2

12:10-23:21

2 stops17h 11m

Harlingen Valley Intl

Sun 15/2

20:07-06:50

1 stop28h 43m

£768

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Wed 11/2

10:35-18:14

1 stop13h 39m

Harlingen Valley Intl

Sun 15/2

20:07-06:50

1 stop28h 43m

£770

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Wed 11/2

11:40-23:21

2 stops17h 41m

Harlingen Valley Intl

Sun 15/2

10:35-09:30

2 stops16h 55m

£798

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Wed 11/2

10:15-23:21

2 stops19h 06m

Harlingen Valley Intl

Sun 15/2

14:43-10:25

2 stops13h 42m

£801

ManchesterHarlingen

MAN - HRL

MANHRL

Manchester

Thu 22/1

07:45-23:21

2 stops21h 36m

Harlingen Valley Intl

Mon 26/1

06:02-16:30

2 stops28h 28m

£868

ManchesterHarlingen

MAN - HRL

MANHRL

Manchester

Thu 22/1

07:45-23:21

2 stops21h 36m

Harlingen Valley Intl

Mon 26/1

15:22-15:10

2 stops17h 48m

£871

ManchesterHarlingen

MAN - HRL

MANHRL

Manchester

Thu 22/1

06:00-21:59

2 stops21h 59m

Harlingen Valley Intl

Mon 26/1

07:00-17:00

2 stops28h 00m

£876

BirminghamHarlingen

BHX - HRL

BHXHRL

Birmingham

Wed 21/1

06:15-14:39

2 stops38h 24m

Harlingen Valley Intl

Sun 25/1

15:39-17:50

2 stops44h 11m

£888

BirminghamHarlingen

BHX - HRL

BHXHRL

Birmingham

Wed 21/1

06:15-14:39

2 stops38h 24m

Harlingen Valley Intl

Sun 25/1

15:39-17:50

2 stops44h 11m

£934

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Wed 7/1

12:05-11:26

2 stops29h 21m

£581

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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How to get the cheapest flight ticket from United Kingdom 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 United Kingdom to Harlingen, Texas is on a Friday when prices can be found for as low as £890. The most expensive day to fly to Harlingen, Texas is Wednesday, with ticket prices averaging around £951.

Cheap United Kingdom to Harlingen, Texas flight deals and tips

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

Fastest flight time

20h 01m

Direct flights

None
The fastest flight from United Kingdom to Harlingen, Texas takes 20h 01m
There are no direct flights from United Kingdom to Harlingen, Texas. There are no popular flight routes from United Kingdom to Harlingen, Texas.
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  • When did momondo last update prices for flights from United Kingdom to Harlingen Valley Intl Airport?

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

  • How old do you have to be to fly from United Kingdom 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 United Kingdom to Harlingen Valley Intl Airport.

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

    The necessary travel and health documents for your Harlingen Valley Intl Airport 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.

Why use momondo?

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

Finding the right flight to Harlingen from United Kingdom is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Harlingen quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to Harlingen from United Kingdom which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for United Kingdom to Harlingen flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Harlingen, momondo offers a useful price alert feature which will track prices for flights to Harlingen from United Kingdom and alert you when they change.

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