HRL

$130 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 1/12. 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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Everything you should know

Cheapest round-trip
$229
United Airlines
Sat 1/17Mon 1/19
STL - HRL • 1 stop
Cheapest one-way
$130
American Airlines
Mon 1/12
STL - HRL • 1 stop
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We hope you love your trip to Harlingen!
Flight Deals
Useful Info
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

Sat, Jan 17 - Mon, Jan 19
United Airlines Logo
4:42 pm - 9:59 pm
STL
-
HRL
5h 17m1 stop
United Airlines Logo
5:25 pm - 10:00 pm
HRL
-
STL
4h 35m1 stop
$229United Airlines
Sat, Jan 17 - Mon, Jan 19
United Airlines Logo
11:20 am - 9:59 pm
STL
-
HRL
10h 39m2 stops
United Airlines Logo
5:25 pm - 10:00 pm
HRL
-
STL
4h 35m1 stop
$234United Airlines
Sat, Jan 10 - Sat, Jan 17
Delta Logo
8:50 am - 2:39 pm
ORD
-
HRL
5h 49m1 stop
Delta Logo
3:39 pm - 9:43 pm
HRL
-
ORD
6h 04m1 stop
$234Delta
Sat, Jan 10 - Sat, Jan 17
American Airlines Logo
5:37 pm - 11:21 pm
ORD
-
HRL
5h 44m1 stop
American Airlines Logo
11:06 am - 5:09 pm
HRL
-
ORD
6h 03m1 stop
$235American Airlines
Fri, Jan 16 - Mon, Jan 19
United Airlines Logo
6:00 am - 11:26 am
STL
-
HRL
5h 26m1 stop
United Airlines Logo
5:25 pm - 10:00 pm
HRL
-
STL
4h 35m1 stop
$249United Airlines
Thu, Jan 8 - Wed, Jan 28
American Airlines Logo
7:15 am - 2:46 pm
STL
-
HRL
7h 31m1 stop
American Airlines Logo
3:22 pm - 7:29 pm
HRL
-
STL
4h 07m1 stop
$254American Airlines
Wed, Jan 14 - Wed, Jan 21
American Airlines Logo
11:56 am - 6:14 pm
ORD
-
HRL
6h 18m1 stop
American Airlines Logo
6:44 pm - 11:44 pm
HRL
-
ORD
5h 00m1 stop
$255American Airlines
Sun, Jan 11 - Thu, Jan 15
Delta Logo
8:50 am - 2:39 pm
ORD
-
HRL
5h 49m1 stop
Delta Logo
3:39 pm - 9:43 pm
HRL
-
ORD
6h 04m1 stop
$289Delta
Wed, Mar 4 - Sat, Mar 7
Southwest Logo
2:15 pm - 9:50 pm
ORD
-
HRL
7h 35m2 stops
Southwest Logo
5:05 am - 11:05 am
HRL
-
ORD
6h 00m1 stop
$294Southwest
Thu, Jan 8 - Wed, Jan 28
Southwest Logo
9:00 am - 5:05 pm
STL
-
HRL
8h 05m2 stops
Southwest Logo
10:50 am - 5:05 pm
HRL
-
STL
6h 15m2 stops
$314Southwest
Useful Info

Good to know

Low seasonSeptember
Cheapest flight$130
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 4% increase in price.
Flight from St. Louis 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)