How does KAYAK find such low prices on flights from Illinois to Houston George Bush Airport?

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 George Bush Airport.

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

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

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 George Bush Airport 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 George Bush Airport?

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 George Bush Airport from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$98 CHEAP FLIGHTS from Illinois to Houston G. Bush Airport (IAH)

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Flight Deals

Cheap Flights from Illinois to George Bush Intcntl

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 George Bush Intcntl

Thu, Dec 10 - Mon, Dec 14

8:15 am - 5:29 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

9h 14m1 stop Atlanta Hartsfield-Jackson

9:24 pm - 7:20 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

9h 56m1 stop Atlanta Hartsfield-Jackson

$165Frontier

Fri, Dec 4 - Mon, Dec 7

3:55 pm - 7:04 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 09mnonstop

9:24 pm - 7:20 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

9h 56m1 stop Atlanta Hartsfield-Jackson

$166Frontier

Sun, Jan 10 - Wed, Jan 20

12:42 pm - 11:28 amRFD Chicago Greater Rockford-IAH Houston George Bush Intcntl

22h 46m1 stop Las Vegas Harry Reid Intl

8:51 pm - 11:52 amIAH Houston George Bush Intcntl-RFD Chicago Greater Rockford

15h 01m1 stop Las Vegas Harry Reid Intl

$214Multiple Airlines

Sun, Jan 10 - Wed, Jan 20

12:42 pm - 11:28 amRFD Chicago Greater Rockford-IAH Houston George Bush Intcntl

22h 46m1 stop Las Vegas Harry Reid Intl

3:50 pm - 3:51 pmIAH Houston George Bush Intcntl-RFD Chicago Greater Rockford

24h 01m2 stops Atlanta Hartsfield-Jackson Orlando

$221Multiple Airlines

Thu, Nov 19 - Sun, Nov 29

6:59 am - 1:21 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

6h 22m1 stop Dallas/Fort Worth

7:39 am - 10:32 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 53mnonstop

$229American Airlines

Thu, Nov 19 - Mon, Nov 30

6:05 am - 11:26 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

5h 21m1 stop Dallas/Fort Worth

9:12 am - 11:59 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 47mnonstop

$238American Airlines

Wed, Dec 2 - Sat, Dec 5

5:00 pm - 10:06 pmMLI Moline Quad-City-IAH Houston George Bush Intcntl

5h 06m1 stop Atlanta Hartsfield-Jackson

5:25 am - 10:26 amIAH Houston George Bush Intcntl-MLI Moline Quad-City

5h 01m1 stop Atlanta Hartsfield-Jackson

$273Delta

Wed, Dec 2 - Wed, Dec 9

5:00 pm - 12:02 amMLI Moline Quad-City-IAH Houston George Bush Intcntl

7h 02m1 stop Atlanta Hartsfield-Jackson

4:29 pm - 11:01 pmIAH Houston George Bush Intcntl-MLI Moline Quad-City

6h 32m1 stop Atlanta Hartsfield-Jackson

$273Delta

Sat, Dec 12 - Tue, Jan 5

6:42 am - 12:22 pmMLI Moline Quad-City-IAH Houston George Bush Intcntl

5h 40m1 stop Chicago O'Hare Intl

7:20 am - 1:45 pmIAH Houston George Bush Intcntl-MLI Moline Quad-City

6h 25m1 stop Chicago O'Hare Intl

$273United Airlines

Sat, Dec 12 - Wed, Jan 6

6:42 am - 12:22 pmMLI Moline Quad-City-IAH Houston George Bush Intcntl

5h 40m1 stop Chicago O'Hare Intl

3:35 pm - 11:24 pmIAH Houston George Bush Intcntl-MLI Moline Quad-City

7h 49m1 stop Chicago O'Hare Intl

$273United Airlines

Recent last minute flight deals from Illinois to George Bush Intcntl

Fri, Oct 16 - Tue, Oct 20

7:40 am - 10:39 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 59mnonstop

12:17 pm - 6:31 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

6h 14m1 stop Atlanta Hartsfield-Jackson

$174Frontier

Fri, Oct 16 - Tue, Oct 20

7:40 am - 10:39 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 59mnonstop

11:36 am - 2:25 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 49mnonstop

$197Frontier

Wed, Oct 21 - Wed, Nov 18

5:03 pm - 12:36 amMLI Moline Quad-City-IAH Houston George Bush Intcntl

7h 33m1 stop Chicago O'Hare Intl

6:55 pm - 12:07 amIAH Houston George Bush Intcntl-MLI Moline Quad-City

5h 12m1 stop Chicago O'Hare Intl

$334American Airlines

Wed, Oct 21 - Tue, Nov 17

11:08 am - 5:23 pmMLI Moline Quad-City-IAH Houston George Bush Intcntl

6h 15m1 stop Atlanta Hartsfield-Jackson

4:27 pm - 11:08 pmIAH Houston George Bush Intcntl-MLI Moline Quad-City

6h 41m1 stop Atlanta Hartsfield-Jackson

$340Delta

Tue, Oct 20 - Tue, Nov 17

6:00 am - 1:23 pmMLI Moline Quad-City-IAH Houston George Bush Intcntl

7h 23m1 stop Atlanta Hartsfield-Jackson

4:27 pm - 11:08 pmIAH Houston George Bush Intcntl-MLI Moline Quad-City

6h 41m1 stop Atlanta Hartsfield-Jackson

$340Delta

Sat, Oct 17 - Sun, Nov 1

5:30 pm - 12:36 amPIA Greater Peoria-IAH Houston George Bush Intcntl

7h 06m1 stop Chicago O'Hare Intl

5:00 am - 11:55 amIAH Houston George Bush Intcntl-PIA Greater Peoria

6h 55m1 stop Dallas/Fort Worth

$399American Airlines

Tue, Oct 20 - Sun, Nov 15

2:28 pm - 8:47 pmMLI Moline Quad-City-IAH Houston George Bush Intcntl

6h 19m1 stop Chicago O'Hare Intl

5:00 am - 10:05 amIAH Houston George Bush Intcntl-MLI Moline Quad-City

5h 05m1 stop Chicago O'Hare Intl

$463United Airlines

Tue, Oct 20 - Tue, Oct 20

12:45 pm - 3:38 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 53mnonstop

5:16 pm - 8:15 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 59mnonstop

$512United Airlines

Wed, Oct 21 - Thu, Oct 22

2:55 pm - 6:00 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

15h 05m3 stops Kirksville Cannon Memorial Dallas/Fort Worth Las Vegas Harry Reid Intl

11:36 am - 2:25 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 49mnonstop

$531Multiple Airlines

Sun, Oct 18 - Thu, Nov 19

2:00 pm - 7:19 amMLI Moline Quad-City-IAH Houston George Bush Intcntl

17h 19m2 stops Las Vegas Harry Reid Intl Atlanta Hartsfield-Jackson

6:00 am - 8:30 pmIAH Houston George Bush Intcntl-MLI Moline Quad-City

14h 30m1 stop Las Vegas Harry Reid Intl

$607Multiple Airlines

Recent direct flight deals from Illinois to George Bush Intcntl

Tue, Dec 29 - Thu, Dec 31

4:10 pm - 7:10 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 00mnonstop

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

2h 54mnonstop

$167Frontier

Wed, Feb 10 - Wed, Feb 17

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

$167Frontier

Tue, Feb 9 - Thu, Feb 11

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

$167Frontier

Mon, Feb 22 - Mon, Mar 1

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

$173Frontier

Wed, Dec 2 - Wed, Dec 23

3:37 pm - 6:34 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 57mnonstop

6:06 am - 8:59 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 53mnonstop

$293American Airlines

Wed, Dec 2 - Tue, Dec 8

5:29 pm - 8:29 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 00mnonstop

7:03 pm - 9:49 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 46mnonstop

$297American Airlines

Sat, Nov 7 - Mon, Nov 9

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

3h 00mnonstop

10:05 pm - 12:45 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 40mnonstop

$297United Airlines

Wed, Nov 4 - Fri, Nov 6

7:55 pm - 10:53 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 58mnonstop

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

2h 50mnonstop

$297United Airlines

Thu, Nov 12 - Sat, Nov 14

9:05 pm - 11:57 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 52mnonstop

5:27 pm - 8:22 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 55mnonstop

$297American Airlines

Tue, Nov 17 - Mon, Nov 23

5:30 am - 8:26 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 56mnonstop

7:20 am - 10:11 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 51mnonstop

$297United Airlines

Useful Info

Low season	September
High season	March
Cheapest flight	$98

Best time to beat the crowds but there is an average 12% increase in price.

Most popular time to fly with an average 3% increase in price.

Flight from Chicago Midway Airport to Houston George Bush Airport

How does KAYAK find such low prices on flights from Illinois to Houston George Bush Airport?
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 George Bush Airport.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Houston George Bush Airport?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Houston George Bush Airport 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 George Bush Airport?
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 George Bush Airport 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 George Bush Airport?
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 George Bush Airport from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.