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.

$101 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

Tue, Jan 5 - Thu, Jan 7

4:34 pm - 7:43 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 09mnonstop

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

2h 54mnonstop

$188Frontier

Wed, Dec 16 - Mon, Dec 21

8:30 am - 5:29 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

8h 59m1 stop Atlanta Hartsfield-Jackson

10:20 pm - 1:08 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 48mnonstop

$188Frontier

Mon, Dec 7 - Tue, Dec 8

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

3h 02mnonstop

5:06 pm - 7:59 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 53mnonstop

$211American Airlines

Wed, Nov 18 - Wed, Nov 25

1:36 pm - 4:31 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 55mnonstop

2:37 pm - 5:29 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 52mnonstop

$211American Airlines

Tue, Nov 17 - Tue, Dec 1

12:40 pm - 3:40 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 00mnonstop

9:40 am - 5:00 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

7h 20m1 stop Minneapolis St Paul

$231United Airlines

Mon, Dec 7 - Tue, Dec 8

5:05 pm - 10:30 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

5h 25m1 stop Detroit Metropolitan Wayne County

11:34 am - 8:53 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

9h 19m2 stops Detroit Metropolitan Wayne County Atlanta Hartsfield-Jackson

$236Delta

Wed, Nov 18 - Wed, Nov 25

11:19 am - 8:11 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

8h 52m2 stops Detroit Metropolitan Wayne County Atlanta Hartsfield-Jackson

11:35 am - 4:18 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

4h 43m1 stop Detroit Metropolitan Wayne County

$236Delta

Tue, Dec 1 - Tue, Dec 8

9:21 am - 12:24 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 03mnonstop

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

2h 50mnonstop

$257United Airlines

Sun, Nov 22 - Mon, Nov 23

9:29 pm - 11:27 amPIA Greater Peoria-IAH Houston George Bush Intcntl

13h 58m1 stop Las Vegas Harry Reid Intl

8:19 pm - 7:47 amIAH Houston George Bush Intcntl-PIA Greater Peoria

11h 28m1 stop Orlando

$301Multiple Airlines

Sun, Dec 6 - Wed, Dec 9

8:36 am - 10:22 amBMI Bloomington-Normal-IAH Houston George Bush Intcntl

25h 46m1 stop Orlando Sanford Intl

1:43 pm - 7:46 amIAH Houston George Bush Intcntl-BMI Bloomington-Normal

18h 03m1 stop Orlando

$301Multiple Airlines

Recent last minute flight deals from Illinois to George Bush Intcntl

Sat, Oct 24 - Sun, Nov 15

6:30 am - 12:40 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

18h 10m1 stop Denver Intl

6:00 am - 6:45 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

12h 45m1 stop Atlanta Hartsfield-Jackson

$249Frontier

Sat, Oct 24 - Sun, Nov 15

7:44 pm - 7:19 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

11h 35m1 stop Atlanta Hartsfield-Jackson

5:06 pm - 7:59 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 53mnonstop

$265Frontier

Sun, Oct 25 - Sun, Nov 1

5:02 pm - 12:36 amMLI Moline Quad-City-IAH Houston George Bush Intcntl

7h 34m1 stop Chicago O'Hare Intl

5:11 pm - 12:07 amIAH Houston George Bush Intcntl-MLI Moline Quad-City

6h 56m1 stop Chicago O'Hare Intl

$399American Airlines

Sat, Oct 24 - Sun, Oct 25

6:00 am - 1:51 pmMLI Moline Quad-City-IAH Houston George Bush Intcntl

7h 51m1 stop Chicago O'Hare Intl

7:02 pm - 11:17 pmIAH Houston George Bush Intcntl-MLI Moline Quad-City

4h 15m1 stop Dallas/Fort Worth

$408American Airlines

Sat, Oct 24 - Sun, Oct 25

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

6h 04m1 stop Atlanta Hartsfield-Jackson

5:29 am - 10:18 amIAH Houston George Bush Intcntl-MLI Moline Quad-City

4h 49m1 stop Atlanta Hartsfield-Jackson

$408Delta

Tue, Oct 20 - Sun, Oct 25

2:28 pm - 9:20 pmMLI Moline Quad-City-IAH Houston George Bush Intcntl

6h 52m1 stop Chicago O'Hare Intl

5:00 am - 9:44 amIAH Houston George Bush Intcntl-MLI Moline Quad-City

4h 44m1 stop Chicago O'Hare Intl

$408United Airlines

Thu, Oct 22 - Sun, Oct 25

6:15 am - 11:41 amPIA Greater Peoria-IAH Houston George Bush Intcntl

5h 26m1 stop Chicago O'Hare Intl

5:00 am - 10:08 amIAH Houston George Bush Intcntl-PIA Greater Peoria

5h 08m1 stop Chicago O'Hare Intl

$429United Airlines

Thu, Oct 22 - Sat, Oct 24

9:40 am - 2:48 pmRFD Chicago Greater Rockford-IAH Houston George Bush Intcntl

29h 08m1 stop Fort Lauderdale

8:14 am - 9:30 amIAH Houston George Bush Intcntl-RFD Chicago Greater Rockford

25h 16m1 stop Fort Lauderdale

$442Multiple Airlines

Fri, Oct 23 - Sun, Oct 25

5:04 pm - 10:02 pmMLI Moline Quad-City-IAH Houston George Bush Intcntl

4h 58m1 stop Atlanta Hartsfield-Jackson

5:29 am - 10:18 amIAH Houston George Bush Intcntl-MLI Moline Quad-City

4h 49m1 stop Atlanta Hartsfield-Jackson

$444Delta

Sat, Oct 24 - Mon, Oct 26

6:00 am - 11:57 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

5h 57m1 stop Atlanta Hartsfield-Jackson

9:12 pm - 2:15 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

17h 03m3 stops Atlanta Hartsfield-Jackson Dallas/Fort Worth Kirksville Cannon Memorial

$453Multiple Airlines

Recent direct flight deals from Illinois to George Bush Intcntl

Tue, Jan 5 - Thu, Jan 7

4:34 pm - 7:43 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 09mnonstop

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

2h 54mnonstop

$188Frontier

Tue, Jan 5 - Fri, Jan 8

4:34 pm - 7:43 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 09mnonstop

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

2h 54mnonstop

$188Frontier

Mon, Dec 14 - Wed, Jan 6

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

$196Frontier

Thu, Jan 7 - Mon, Jan 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

$198Frontier

Mon, Dec 7 - Tue, Dec 8

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

3h 02mnonstop

5:06 pm - 7:59 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 53mnonstop

$211American Airlines

Wed, Nov 18 - Wed, Nov 25

1:36 pm - 4:31 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 55mnonstop

2:37 pm - 5:29 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 52mnonstop

$211American Airlines

Mon, Dec 7 - Mon, Dec 7

7:30 am - 10:25 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 55mnonstop

5:06 pm - 7:59 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 53mnonstop

$211American Airlines

Tue, Dec 1 - Tue, Dec 8

9:21 am - 12:24 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 03mnonstop

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

2h 50mnonstop

$257United Airlines

Wed, Nov 18 - Wed, Dec 2

7:29 am - 10:32 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 03mnonstop

3:30 pm - 6:20 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 50mnonstop

$257United Airlines

Mon, Nov 16 - Mon, Nov 16

6:55 am - 9:50 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 55mnonstop

6:48 pm - 9:40 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 52mnonstop

$297United Airlines

Useful Info

Low season	September
High season	March
Cheapest flight	$101

Best time to beat the crowds but there is an average 11% increase in price.

Most popular time to fly with an average 4% 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.