Cheap flights from the United Kingdom to Harlingen from £823

This is the cheapest return 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 7/3. 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

Recent return flight deals from the United Kingdom to Harlingen

Enter your travel dates to find the best prices.
American Airlines Logo
11:40 - 00:01LHR-HRL
18h 21m2 stops
American Airlines Logo
10:04 - 06:30HRL-LHR
15h 26m2 stops
£823American Airlines
Find Deal
Sat, 7 Mar - Wed, 11 Mar
American Airlines Logo
11:40 - 00:01LHR-HRL
18h 21m2 stops
American Airlines Logo
05:50 - 11:40HRL-LHR
24h 50m1 stop
£824American Airlines
Find Deal
Sat, 7 Mar - Wed, 11 Mar
United Airlines Logo
10:00 - 19:29LHR-HRL
15h 29m1 stop
United Airlines Logo
14:00 - 10:15HRL-LHR
15h 15m1 stop
£849United Airlines
Find Deal
Sat, 7 Mar - Wed, 11 Mar
United Airlines Logo
10:00 - 21:44LHR-HRL
17h 44m1 stop
United Airlines Logo
17:16 - 10:15HRL-LHR
11h 59m1 stop
£849United Airlines
Find Deal
Sat, 7 Mar - Wed, 11 Mar
Delta Logo
13:30 - 14:46BHX-HRL
55h 16m2 stops
Delta Logo
15:41 - 08:30HRL-BHX
58h 49m2 stops
£1,007Delta
Find Deal
Wed, 3 Dec - Sun, 7 Dec
Delta Logo
09:20 - 14:46BHX-HRL
59h 26m2 stops
Delta Logo
15:41 - 08:30HRL-BHX
58h 49m2 stops
£1,008Delta
Find Deal
Wed, 3 Dec - Sun, 7 Dec
Iberia Logo
10:30 - 18:05LHR-HRL
13h 35m1 stop
Iberia Logo
14:50 - 09:00HRL-LHR
12h 10m1 stop
£1,407Iberia
Find Deal
Sat, 18 Oct - Wed, 22 Oct
Iberia Logo
10:30 - 18:05LHR-HRL
13h 35m1 stop
Iberia Logo
18:37 - 17:15HRL-LHR
16h 38m2 stops
£1,417Iberia
Find Deal
Sat, 18 Oct - Wed, 22 Oct
Iberia Logo
10:30 - 18:05LHR-HRL
13h 35m1 stop
Iberia Logo
14:50 - 09:00HRL-LHR
12h 10m1 stop
£2,090Iberia
Find Deal
Sat, 18 Oct - Wed, 22 Oct
Iberia Logo
10:30 - 18:05LHR-HRL
13h 35m1 stop
Iberia Logo
18:37 - 17:15HRL-LHR
16h 38m2 stops
£2,100Iberia
Find Deal
Sat, 18 Oct - Wed, 22 Oct

American Airlines flights from United Kingdom to Harlingen, Texas

Our best American Airlines deals on United Kingdom to Harlingen, Texas flight tickets
American Airlines
7 Mar
LHR11:40London Heathrow
18h 21m
2 stops
HRL00:01Harlingen Valley Intl
11 Mar
HRL10:04Harlingen Valley Intl
15h 26m
2 stops
LHR06:30London Heathrow
American Airlines
7 Mar
LHR11:40London Heathrow
18h 21m
2 stops
HRL00:01Harlingen Valley Intl
11 Mar
HRL05:50Harlingen Valley Intl
24h 50m
1 stop
LHR11:40London Heathrow

United Airlines flights from United Kingdom to Harlingen, Texas

Our best United Airlines deals on United Kingdom to Harlingen, Texas flight tickets
United Airlines
7 Mar
LHR10:00London Heathrow
15h 29m
1 stop
HRL19:29Harlingen Valley Intl
11 Mar
HRL14:00Harlingen Valley Intl
15h 15m
1 stop
LHR10:15London Heathrow
United Airlines
7 Mar
LHR10:00London Heathrow
17h 44m
1 stop
HRL21:44Harlingen Valley Intl
11 Mar
HRL17:16Harlingen Valley Intl
11h 59m
1 stop
LHR10:15London Heathrow

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 7 October 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

Sat 7/3

11:40-00:01

2 stops18h 21m

Harlingen Valley Intl

Wed 11/3

10:04-06:30

2 stops15h 26m

£823

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Sat 7/3

11:40-00:01

2 stops18h 21m

Harlingen Valley Intl

Wed 11/3

05:50-11:40

1 stop24h 50m

£824

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Sat 7/3

10:00-19:29

1 stop15h 29m

Harlingen Valley Intl

Wed 11/3

14:00-10:15

1 stop15h 15m

£849

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Sat 7/3

10:00-21:44

1 stop17h 44m

Harlingen Valley Intl

Wed 11/3

17:16-10:15

1 stop11h 59m

£849

BirminghamHarlingen

BHX - HRL

BHXHRL

Birmingham

Wed 3/12

13:30-14:46

2 stops55h 16m

Harlingen Valley Intl

Sun 7/12

15:41-08:30

2 stops58h 49m

£1,007

BirminghamHarlingen

BHX - HRL

BHXHRL

Birmingham

Wed 3/12

09:20-14:46

2 stops59h 26m

Harlingen Valley Intl

Sun 7/12

15:41-08:30

2 stops58h 49m

£1,008

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Sat 18/10

10:30-18:05

1 stop13h 35m

Harlingen Valley Intl

Wed 22/10

14:50-09:00

1 stop12h 10m

£1,407

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Sat 18/10

10:30-18:05

1 stop13h 35m

Harlingen Valley Intl

Wed 22/10

18:37-17:15

2 stops16h 38m

£1,417

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Sat 18/10

10:30-18:05

1 stop13h 35m

Harlingen Valley Intl

Wed 22/10

14:50-09:00

1 stop12h 10m

£2,090

LondonHarlingen

LHR - HRL

LHRHRL

London Heathrow

Sat 18/10

10:30-18:05

1 stop13h 35m

Harlingen Valley Intl

Wed 22/10

18:37-17:15

2 stops16h 38m

£2,100

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to Harlingen from

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 £873. The most expensive day to fly to Harlingen, Texas is Wednesday, with ticket prices averaging around £933.

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

Direct flights

None
There are no direct flights from United Kingdom to Harlingen, Texas. There are no popular flight routes from United Kingdom to Harlingen, Texas.
  • 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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