How does KAYAK find such low prices on flights from Illinois to Harlingen?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Harlingen. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Harlingen?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Harlingen from Illinois is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Illinois to Harlingen?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Harlingen with an airline and back to Illinois with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Harlingen?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Harlingen from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$145 Cheap Flights from Illinois to Harlingen

HRL

Search hundreds of travel sites at once for deals on flights to Harlingen

...and more

In the last 7 days travelers have searched 44,212,782 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Low season	September
High season	February
Cheapest flight	$145

Best time to beat the crowds with an average 13% drop in price.

Most popular time to fly and prices are also 7% lower on average.

Flight from Chicago O'Hare Airport to Harlingen

How does KAYAK find such low prices on flights from Illinois to Harlingen?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Harlingen.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Harlingen?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Harlingen from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Illinois to Harlingen?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Harlingen with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Harlingen?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Harlingen from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Nonstop departures

Illinois to Harlingen Valley Intl

Monday

Air Canada, Air New Zealand, American Airlines, +4 more

Air Canada, Air New Zealand, +5 more

Tuesday

Air Canada, Air New Zealand, American Airlines, +4 more

Air Canada, Air New Zealand, +5 more

Wednesday

Air Canada, Air New Zealand, American Airlines, +5 more

Air Canada, Air New Zealand, +6 more

Thursday

Air Canada, Air New Zealand, American Airlines, +4 more

Air Canada, Air New Zealand, +5 more

Friday

Air Canada, Air New Zealand, American Airlines, +4 more

Air Canada, Air New Zealand, +5 more

Saturday

Air Canada, Air New Zealand, American Airlines, +5 more

Air Canada, Air New Zealand, +6 more

Sunday

Air Canada, Air New Zealand, American Airlines, +5 more

Air Canada, Air New Zealand, +6 more

See more direct flights

Nonstop returns

Harlingen Valley Intl to Illinois

Monday

Air Canada, Air New Zealand, American Airlines, +4 more

Air Canada, Air New Zealand, +5 more

Tuesday

Air Canada, Air New Zealand, American Airlines, +4 more

Air Canada, Air New Zealand, +5 more

Wednesday

Air Canada, Air New Zealand, American Airlines, +5 more

Air Canada, Air New Zealand, +6 more

Thursday

Air Canada, Air New Zealand, American Airlines, +4 more

Air Canada, Air New Zealand, +5 more

Friday

Air Canada, Air New Zealand, American Airlines, +4 more

Air Canada, Air New Zealand, +5 more

Saturday

Air Canada, Air New Zealand, American Airlines, +5 more

Air Canada, Air New Zealand, +6 more

Sunday

Air Canada, Air New Zealand, American Airlines, +5 more

Air Canada, Air New Zealand, +6 more

See more direct flights

Book cheap flights from Illinois to Harlingen

Recent round-trip flight deals

9/4Wed

1 stopAmerican Airlines

4h 35mORD-HRL

9/10Tue

1 stopAmerican Airlines

6h 20mHRL-ORD

$198

9/4Wed

1 stopUnited Airlines

7h 30mORD-HRL

9/10Tue

2 stopsUnited Airlines

11h 43mHRL-ORD

$301

9/4Wed

2 stopsUnited Airlines

10h 30mORD-HRL

9/10Tue

2 stopsUnited Airlines

11h 43mHRL-ORD

$306

8/6Tue

1 stopAmerican Airlines

6h 19mORD-HRL

8/15Thu

1 stopAmerican Airlines

11h 22mHRL-ORD

$310

8/8Thu

1 stopAmerican Airlines

6h 37mORD-HRL

8/13Tue

1 stopAmerican Airlines

4h 46mHRL-ORD

$343

6/21Fri

1 stopUnited Airlines

4h 55mORD-HRL

6/24Mon

1 stopUnited Airlines

6h 58mHRL-ORD

$349

6/26Wed

1 stopAmerican Airlines

4h 45mORD-HRL

8/7Wed

1 stopAmerican Airlines

5h 46mHRL-ORD

$361

7/10Wed

1 stopUnited Airlines

5h 19mORD-HRL

7/17Wed

1 stopUnited Airlines

6h 48mHRL-ORD

$385

7/12Fri

1 stopUnited Airlines

4h 47mORD-HRL

7/15Mon

1 stopUnited Airlines

6h 48mHRL-ORD

$391

8/6Tue

2 stopsUnited Airlines

14h 00mORD-HRL

8/15Thu

1 stopUnited Airlines

16h 48mHRL-ORD

$397

Recent one-way flight deals

10/15Tue

1 stopUnited Airlines

7h 14mORD-HRL

$145

6/18Tue

1 stopUnited Airlines

4h 55mORD-HRL

$162

10/15Tue

2 stopsUnited Airlines

13h 19mORD-HRL

$167

6/17Mon

1 stopUnited Airlines

4h 55mORD-HRL

$209

6/17Mon

2 stopsUnited Airlines

9h 51mORD-HRL

$214

6/18Tue

2 stopsUnited Airlines

11h 42mORD-HRL

$234

6/24Mon

1 stopUnited Airlines

18h 26mORD-HRL

$278

6/24Mon

2 stopsUnited Airlines

15h 42mORD-HRL

$319

7/9Tue

1 stopAmerican Airlines

5h 33mORD-HRL

$381

7/9Tue

2 stopsUnited Airlines

13h 16mORD-HRL

$429

Last minute flights from Illinois to Harlingen

Last minute flight, train and bus deals

6/13Thu

multi-stopAmerican Airlines

6h 26mORD-HRL

6/16Sun

multi-stopAmerican Airlines

5h 11mHRL-ORD

$431

6/14Fri

multi-stopAmerican Airlines

4h 45mORD-HRL

6/16Sun

multi-stopAmerican Airlines

5h 11mHRL-ORD

$491

6/13Thu

multi-stopAmerican Airlines

7h 21mORD-HRL

6/16Sun

multi-stopAmerican Airlines

7h 31mHRL-ORD

$672

6/13Thu

multi-stopUnited Airlines

11h 31mORD-HRL

6/16Sun

multi-stopUnited Airlines

11h 50mHRL-ORD

$938

6/13Thu

multi-stopAmerican Airlines

6h 36mORD-HRL

6/16Sun

multi-stopAmerican Airlines

5h 11mHRL-ORD

$988

6/13Thu

multi-stopAmerican Airlines

4h 31mORD-HRL

6/16Sun

multi-stopAmerican Airlines

7h 13mHRL-ORD

$1,445

6/13Thu

multi-stopUnited Airlines

10h 21mORD-HRL

6/16Sun

multi-stopUnited Airlines

13h 00mHRL-ORD

$1,778

Flights to Harlingen

Destination:

Harlingen (HRL)United States

Return flight deals:

Harlingen - Illinois

Cabin classes:

$389

Browse origins:

Flights from Chicago O'Hare Intl Airport to Harlingen

$283

Flights from Chicago to Harlingen

$657

Flights from St. Louis to Harlingen

Browse destinations:

$283

Flights to Harlingen, Harlingen

HRL

$145 Find cheap flights from Illinois to Harlingen

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Harlingen departing on 10/15. 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.

Search hundreds of travel sites at once for deals on flights to Harlingen

Good to know

Low season

High season

Cheapest flight

FAQs for booking flights from Illinois to Harlingen

How does KAYAK find such low prices on flights from Illinois to Harlingen?

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Harlingen?

What is the Hacker Fare option on flights from Illinois to Harlingen?

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Harlingen?

Prefer to fly non-stop from Illinois to Harlingen?

Illinois to Harlingen Valley Intl

Harlingen Valley Intl to Illinois

Book cheap flights from Illinois to Harlingen

Recent round-trip flight deals

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Recent one-way flight deals

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Last minute flights from Illinois to Harlingen

Last minute flight, train and bus deals

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Flights to Harlingen

Destination:

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