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>

$160 CHEAP FLIGHTS from Illinois to Harlingen

HRL

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Cheap Flights from Illinois to Harlingen

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Harlingen that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Illinois to Harlingen

KAYAK's recommended round-trip deals from the most popular airlines that fly from Illinois to Harlingen.

Discover the best prices for you by selecting your travel dates on KAYAK.

2:26 pm - 7:25 pmORD-HRL

4h 59m1 stop

5:20 pm - 11:12 pmHRL-ORD

5h 52m1 stop

$209United Airlines

Find Deal

Sat, May 24 - Sat, May 31

2:26 pm - 9:35 pmORD-HRL

7h 09m1 stop

5:20 pm - 11:12 pmHRL-ORD

5h 52m1 stop

$234United Airlines

Find Deal

Sat, May 24 - Sat, May 31

7:10 am - 1:25 pmORD-HRL

6h 15m1 stop

5:20 pm - 12:13 amHRL-ORD

6h 53m1 stop

$253United Airlines

Find Deal

Fri, May 30 - Thu, Jun 5

5:36 pm - 12:04 amORD-HRL

6h 28m1 stop

7:59 pm - 12:59 amHRL-ORD

5h 00m1 stop

$260American Airlines

Find Deal

Wed, Jun 18 - Mon, Jun 23

7:35 am - 1:24 pmORD-HRL

5h 49m1 stop

5:30 pm - 10:58 pmHRL-ORD

5h 28m1 stop

$279United Airlines

Find Deal

Wed, May 14 - Sun, May 18

1:23 pm - 7:40 pmORD-HRL

6h 17m1 stop

10:02 am - 2:47 pmHRL-ORD

4h 45m1 stop

$280American Airlines

Find Deal

Sat, Aug 2 - Sat, Aug 9

1:58 pm - 7:26 pmORD-HRL

5h 28m1 stop

12:05 pm - 6:24 pmHRL-ORD

6h 19m1 stop

$289American Airlines

Find Deal

Sat, May 24 - Sat, May 31

4:20 pm - 9:45 pmORD-HRL

5h 25m1 stop

6:40 am - 1:05 pmHRL-ORD

6h 25m1 stop

$299Southwest

Find Deal

Fri, Aug 1 - Fri, Aug 8

4:20 pm - 9:45 pmORD-HRL

5h 25m1 stop

5:15 am - 12:45 pmHRL-ORD

7h 30m2 stops

$323Southwest

Find Deal

Thu, Jul 3 - Mon, Jul 7

12:40 pm - 11:05 pmORD-HRL

10h 25m2 stops

7:00 am - 12:45 pmHRL-ORD

5h 45m1 stop

$334Southwest

Find Deal

Sat, Jul 26 - Fri, Aug 1

Useful Info

Low season	September
High season	March
Cheapest flight	$160

Best time to beat the crowds with an average 7% drop in price.

Most popular time to fly and prices are also 3% 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.

Everything you need to know for your flight to Harlingen

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on the airport you'll fly into in Harlingen

Harlingen (HRL)

HRL

$160 Find Cheap Flights from Illinois to Harlingen

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

Cheap Flights from Illinois to Harlingen

Recent round-trip flight deals from Illinois to Harlingen

Recent one-way flight deals from Illinois to Harlingen

Recent last minute flight deals from Illinois to Harlingen

Good to know

FAQs for booking flights from Illinois 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.

Everything you need to know for your flight to Harlingen

Information on the airport you'll fly into in Harlingen

Cabin class types available on flights to Illinois

Complete your trip to Harlingen with a hotel stay or car rental

Find direct flights for Harlingen

Flights to other popular destinations

Flights from domestic origins to Harlingen

Choose which airport to fly into in Harlingen

Find deals for your return flight