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.

$101 CHEAP FLIGHTS from Illinois to Houston

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Flight Deals

Cheap Flights from Illinois to Houston

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

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Illinois to Houston

Wed, Jan 6 - Tue, Jan 12

7:26 pm - 12:34 pmSPI Springfield Capital-IAH Houston George Bush Intcntl

17h 08m1 stop Orlando

5:44 pm - 6:46 pmIAH Houston George Bush Intcntl-SPI Springfield Capital

25h 02m1 stop Orlando

$193Multiple Airlines

Tue, Dec 22 - Tue, Jan 5

7:45 am - 10:04 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

14h 19m1 stop Denver Intl

7:26 am - 12:26 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

17h 00m1 stop Denver Intl

$198Frontier

Thu, Dec 31 - Sun, Jan 10

5:58 am - 1:27 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

7h 29m1 stop Atlanta Hartsfield-Jackson

8:38 pm - 11:32 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 54mnonstop

$198Frontier

Tue, Dec 1 - Thu, Dec 3

8:15 am - 5:31 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

9h 16m1 stop Atlanta Hartsfield-Jackson

7:00 am - 11:33 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

16h 33m1 stop Fort Lauderdale

$210Multiple Airlines

Tue, Dec 1 - Sat, Dec 5

3:13 pm - 6:15 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 02mnonstop

9:29 am - 12:15 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 46mnonstop

$211American Airlines

Wed, Dec 2 - Wed, Dec 9

11:01 am - 2:03 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 02mnonstop

2:43 pm - 5:29 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 46mnonstop

$211American Airlines

Sat, Dec 5 - Sat, Dec 12

7:50 pm - 10:48 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 58mnonstop

1:40 pm - 4:30 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 50mnonstop

$211United Airlines

Wed, Dec 2 - Wed, Dec 9

8:50 pm - 11:30 pmMDW Chicago Midway-HOU Houston Hobby

2h 40mnonstop

8:40 pm - 11:10 pmHOU Houston Hobby-MDW Chicago Midway

2h 30mnonstop

$211Southwest

Sat, Dec 5 - Sat, Dec 12

6:20 pm - 9:05 pmMDW Chicago Midway-HOU Houston Hobby

2h 45mnonstop

7:55 pm - 10:20 pmHOU Houston Hobby-MDW Chicago Midway

2h 25mnonstop

$211Southwest

Sat, Dec 5 - Mon, Dec 7

7:30 am - 10:33 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 03mnonstop

5:05 pm - 7:55 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 50mnonstop

$219United Airlines

Recent last minute flight deals from Illinois to Houston

Thu, Nov 5 - Thu, Nov 12

7:55 am - 2:44 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

6h 49m1 stop Fort Lauderdale

8:18 am - 3:37 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

7h 19m1 stop Fort Lauderdale

$201Frontier

Sun, Nov 1 - Thu, Nov 12

7:55 am - 2:44 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

30h 49m1 stop Fort Lauderdale

8:18 am - 3:37 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

7h 19m1 stop Fort Lauderdale

$207Frontier

Thu, Nov 5 - Tue, Nov 10

7:55 am - 2:44 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

6h 49m1 stop Fort Lauderdale

12:45 pm - 11:36 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

10h 51m1 stop Fort Lauderdale

$285Multiple Airlines

Thu, Nov 5 - Mon, Nov 9

7:55 am - 2:44 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

6h 49m1 stop Fort Lauderdale

12:45 pm - 1:42 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

24h 57m1 stop Fort Lauderdale

$315Multiple Airlines

Tue, Nov 3 - Sat, Nov 7

6:00 am - 12:04 pmMLI Moline Quad-City-IAH Houston George Bush Intcntl

6h 04m1 stop Atlanta Hartsfield-Jackson

2:22 pm - 10:30 pmIAH Houston George Bush Intcntl-MLI Moline Quad-City

8h 08m1 stop Atlanta Hartsfield-Jackson

$387Delta

Thu, Nov 5 - Mon, Nov 9

5:09 pm - 11:03 pmMLI Moline Quad-City-HOU Houston Hobby

5h 54m1 stop Atlanta Hartsfield-Jackson

10:27 am - 4:33 pmHOU Houston Hobby-MLI Moline Quad-City

6h 06m1 stop Atlanta Hartsfield-Jackson

$399Delta

Thu, Nov 5 - Thu, Nov 12

5:39 pm - 11:57 pmPIA Greater Peoria-IAH Houston George Bush Intcntl

6h 18m1 stop Chicago O'Hare Intl

7:00 am - 11:55 amIAH Houston George Bush Intcntl-PIA Greater Peoria

4h 55m1 stop Dallas/Fort Worth

$399American Airlines

Wed, Nov 4 - Sun, Nov 8

5:13 pm - 11:16 pmMLI Moline Quad-City-HOU Houston Hobby

6h 03m1 stop Dallas/Fort Worth

6:00 am - 10:59 amHOU Houston Hobby-MLI Moline Quad-City

4h 59m1 stop Dallas/Fort Worth

$408American Airlines

Mon, Nov 2 - Mon, Nov 16

12:25 pm - 3:00 pmMDW Chicago Midway-HOU Houston Hobby

2h 35mnonstop

8:40 pm - 11:10 pmHOU Houston Hobby-MDW Chicago Midway

2h 30mnonstop

$454Southwest

Mon, Nov 2 - Mon, Nov 16

4:50 pm - 9:00 pmMDW Chicago Midway-HOU Houston Hobby

4h 10m1 stop Kansas City

8:40 pm - 11:10 pmHOU Houston Hobby-MDW Chicago Midway

2h 30mnonstop

$460Southwest

Recent direct flight deals from Illinois to Houston

Thu, Jan 14 - Thu, Jan 21

4:08 pm - 7:08 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 00mnonstop

8:03 pm - 10:57 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 54mnonstop

$199Frontier

Mon, Dec 21 - Thu, Dec 31

6:19 pm - 9:25 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 06mnonstop

8:12 pm - 11:06 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 54mnonstop

$199Frontier

Mon, Dec 21 - Fri, Dec 25

6:19 pm - 9:25 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 06mnonstop

8:12 pm - 11:06 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 54mnonstop

$200Frontier

Tue, Dec 1 - Sat, Dec 5

3:13 pm - 6:15 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 02mnonstop

9:29 am - 12:15 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 46mnonstop

$211American Airlines

Wed, Dec 2 - Wed, Dec 9

11:01 am - 2:03 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 02mnonstop

2:43 pm - 5:29 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 46mnonstop

$211American Airlines

Sat, Dec 5 - Sat, Dec 12

7:50 pm - 10:48 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 58mnonstop

1:40 pm - 4:30 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 50mnonstop

$211United Airlines

Sat, Dec 5 - Sat, Dec 12

10:15 am - 12:50 pmMDW Chicago Midway-HOU Houston Hobby

2h 35mnonstop

5:00 am - 7:25 amHOU Houston Hobby-MDW Chicago Midway

2h 25mnonstop

$211Southwest

Sat, Dec 5 - Sat, Dec 12

10:15 am - 12:50 pmMDW Chicago Midway-HOU Houston Hobby

2h 35mnonstop

7:55 pm - 10:20 pmHOU Houston Hobby-MDW Chicago Midway

2h 25mnonstop

$211Southwest

Sat, Dec 5 - Tue, Dec 8

3:00 pm - 6:09 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 09mnonstop

11:15 am - 2:04 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 49mnonstop

$211American Airlines

Sat, Dec 5 - Mon, Dec 7

7:30 am - 10:33 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 03mnonstop

5:05 pm - 7:55 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 50mnonstop

$219United Airlines

Useful Info

Cheapest flight	$101

Flight from Chicago Midway Airport to Houston George Bush Airport

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.