$63 Find Cheap Flights from Illinois to Houston - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Houston departing on 11/14. 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

Save 20% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals
Useful Info
Flight Deals

Cheap Flights from Illinois to Houston

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Houston 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 Houston

Wed, Sep 9 - Wed, Sep 16
Frontier Logo
2:29 pm - 10:30 pm
STL
-
IAH
8h 01m
1 stop
Frontier Logo
6:28 am - 1:10 pm
IAH
-
STL
6h 42m
1 stop
$128Frontier
Mon, Aug 24 - Mon, Aug 31
Frontier Logo
6:17 pm - 7:20 am
STL
-
IAH
13h 03m
1 stop
Frontier Logo
11:32 am - 5:22 pm
IAH
-
STL
5h 50m
1 stop
$132Frontier
Sat, Sep 19 - Tue, Sep 22
United Airlines Logo
6:30 am - 9:19 am
ORD
-
IAH
2h 49mnonstop
United Airlines Logo
7:30 am - 1:15 pm
IAH
-
ORD
5h 45m
1 stop
$178United Airlines
Thu, Oct 22 - Mon, Oct 26
United Airlines Logo
7:30 am - 10:23 am
ORD
-
IAH
2h 53mnonstop
United Airlines Logo
3:20 pm - 6:10 pm
IAH
-
ORD
2h 50mnonstop
$183United Airlines
Sat, Aug 29 - Wed, Sep 2
Southwest Logo
6:05 pm - 8:40 pm
MDW
-
HOU
2h 35mnonstop
Southwest Logo
8:50 pm - 11:10 pm
HOU
-
MDW
2h 20mnonstop
$183Southwest
Sat, Sep 19 - Mon, Sep 21
Southwest Logo
1:45 pm - 4:15 pm
MDW
-
HOU
2h 30mnonstop
Southwest Logo
7:55 pm - 10:20 pm
HOU
-
MDW
2h 25mnonstop
$183Southwest
Sat, Aug 22 - Mon, Aug 24
American Airlines Logo
12:59 pm - 3:45 pm
ORD
-
IAH
2h 46mnonstop
American Airlines Logo
4:40 pm - 7:44 pm
IAH
-
ORD
3h 04mnonstop
$183American Airlines
Thu, Oct 15 - Mon, Oct 19
American Airlines Logo
9:05 pm - 11:59 pm
ORD
-
IAH
2h 54mnonstop
American Airlines Logo
2:16 pm - 5:07 pm
IAH
-
ORD
2h 51mnonstop
$183American Airlines
Thu, Sep 24 - Mon, Sep 28
Delta Logo
5:30 am - 1:30 pm
ORD
-
IAH
8h 00m
1 stop
Delta Logo
3:20 pm - 8:30 pm
IAH
-
ORD
5h 10m
1 stop
$203Delta
Sat, Aug 22 - Mon, Aug 24
Delta Logo
8:28 am - 6:41 pm
ORD
-
IAH
10h 13m
2 stops
Delta Logo
6:36 pm - 11:57 pm
IAH
-
ORD
5h 21m
1 stop
$208Delta
Useful Info

Good to know

Cheapest flight

$63
Flight from St. Louis to Houston George Bush Airport

FAQs for booking flights from Illinois to Houston

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

    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 Houston.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Houston 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 Houston?

    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 Houston 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 Houston?

    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 Houston 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 Houston

Cabin class types available on flights to Illinois

Cabin classes available on flights to Houston. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
First Class flights to Houston
Business Class flights to Houston
Premium Economy Class flights to Houston
Economy Class flights to Houston