£166+ Cheap flights from Harlingen, Texas

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
HRL — CGK
15 Apr — 22 Apr1
1 adult
1 adult, Economy, 0 bags

Find flights from Harlingen

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Cheapest flights from Harlingen
Explore the most affordable flight options available from Harlingen. Find the lowest fares based on data from user searches, with prices last updated on 16 March 2026.

Sun 23/817:16
HRL
-
LHR
1 stop12h 19m
United Airlines
Thu 27/807:25
LHR
-
HRL
2 stops18h 04m
United Airlines
Deal found 13/3£584
Wed 29/420:03
HRL
-
LHR
1 stop12h 22m
Iberia
Wed 6/507:50
LHR
-
HRL
2 stops21h 01m
Iberia
Deal found 15/3£625
Mon 27/407:00
HRL
-
LHR
1 stop18h 45m
United Airlines
Mon 4/516:25
LHR
-
HRL
2 stops33h 35m
United Airlines
Deal found 13/3£637

Find flights from Harlingen within your budget

 
Find flights departing from Harlingen that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 16 March 2026. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Route

Depart

Return

Price

Cheapest return flight
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

07:25-19:29

2 stops18h 04m

£584

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

£640

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Fri 1/5

12:10-07:40

1 stop13h 30m

London Heathrow

Thu 7/5

09:30-21:59

2 stops18h 29m

£675
Cheapest one-way
Fastest single journey

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Sat 20/6

17:20-06:30

2 stops31h 10m

£380

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Sat 20/6

17:20-07:40

1 stop32h 20m

£385

HarlingenLondon

HRL - LHR

HRLLHR

Harlingen Valley Intl

Sat 20/6

13:49-21:35

3 stops49h 46m

£515

Flights are sorted by cheapest return flights first.

Deals found on 15/3

Sorted by cheapest first

Best time to book a flight from Harlingen

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Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Harlingen

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Related info for your journey

Access useful and relevant information related to your journey from Harlingen. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 16 March 2026.

  • What are the most popular destinations to fly to from Harlingen, Texas?

    This month, the top selected destinations from Harlingen, Texas are Honolulu, Dallas/Fort Worth Airport, Denver. Throughout the year, Las Vegas, Dallas/Fort Worth Airport, Denver are some of the top choices made by users flying from Harlingen, Texas.

  • How does Cheapflights help users find flights from Harlingen?

    When you search for this flight from Harlingen, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.

  • Why should you use Cheapflights to find cheap flight tickets from Harlingen?

    Cheapflights simply makes it quick and affordable to book flights from Harlingen by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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How does Cheapflights help users find flights from Harlingen?

When you search for this flight from Harlingen, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.

Why should you use Cheapflights to find cheap flight tickets from Harlingen?

Cheapflights simply makes it quick and affordable to book flights from Harlingen by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Harlingen with no change fees?

Yes! Cheapflights helps users easily find flights from Harlingen with no change fees.

Can Cheapflights notify me if prices for flights from Harlingen become cheaper?

Of course! You can now track prices for flights from Harlingen and get an alert from Cheapflights when they change. Click the bell icon next to the flight deals above and provide your email address to set up price alerts.

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