HRL

$129 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 4/21. 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.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

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

Recent round-trip flight deals from Illinois to Harlingen

Wed, May 13 - Wed, May 20
Southwest Logo
4:25 pm - 10:00 pm
STL
-
HRL
5h 35m
1 stop
Southwest Logo
4:40 pm - 10:20 pm
HRL
-
STL
5h 40m
1 stop
$229Southwest
Wed, May 13 - Wed, May 20
Southwest Logo
2:30 pm - 10:00 pm
STL
-
HRL
7h 30m
2 stops
Southwest Logo
4:40 pm - 10:20 pm
HRL
-
STL
5h 40m
1 stop
$234Southwest
Fri, Apr 17 - Mon, Apr 20
United Airlines Logo
5:48 am - 11:23 am
ORD
-
HRL
5h 35m
1 stop
United Airlines Logo
5:18 pm - 12:45 am
HRL
-
ORD
7h 27m
1 stop
$257United Airlines
Wed, May 13 - Wed, May 20
Southwest Logo
4:25 pm - 10:00 pm
STL
-
HRL
5h 35m
1 stop
Southwest Logo
4:40 pm - 10:20 pm
HRL
-
STL
5h 40m
1 stop
$257Southwest
Wed, May 13 - Wed, May 20
Southwest Logo
8:25 am - 4:00 pm
STL
-
HRL
7h 35m
2 stops
Southwest Logo
4:40 pm - 10:20 pm
HRL
-
STL
5h 40m
1 stop
$262Southwest
Thu, Apr 23 - Mon, Apr 27
Southwest Logo
2:40 pm - 11:00 pm
ORD
-
HRL
8h 20m
2 stops
Southwest Logo
6:55 am - 1:15 pm
HRL
-
ORD
6h 20m
1 stop
$262Southwest
Mon, Mar 30 - Mon, Mar 30
United Airlines Logo
6:00 am - 11:23 am
STL
-
HRL
5h 23m
1 stop
United Airlines Logo
5:18 pm - 10:28 pm
HRL
-
STL
5h 10m
1 stop
$279United Airlines
Thu, Mar 26 - Mon, Mar 30
Southwest Logo
6:30 pm - 12:05 am
STL
-
HRL
5h 35m
1 stop
Southwest Logo
6:25 pm - 12:05 am
HRL
-
STL
5h 40m
1 stop
$280Southwest
Thu, Apr 23 - Mon, Apr 27
United Airlines Logo
2:05 pm - 7:40 pm
ORD
-
HRL
5h 35m
1 stop
United Airlines Logo
5:18 pm - 12:45 am
HRL
-
ORD
7h 27m
1 stop
$281United Airlines
Thu, Apr 2 - Wed, Apr 8
American Airlines Logo
11:45 am - 7:36 pm
ORD
-
HRL
7h 51m
1 stop
American Airlines Logo
2:47 pm - 10:45 pm
HRL
-
ORD
7h 58m
1 stop
$297American Airlines
Useful Info

Good to know

Low seasonJuly
Cheapest flight$129
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly with an average 3% increase in price.
Flight from Chicago O'Hare Airport to Harlingen

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

Harlingen (HRL)