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.

$47 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

Wed, Oct 21 - Wed, Oct 28

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

2h 59mnonstop

12:19 pm - 6:16 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

5h 57m1 stop Atlanta Hartsfield-Jackson

$127Frontier

Tue, Oct 27 - Wed, Oct 28

2:11 pm - 5:21 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 10mnonstop

12:19 pm - 6:16 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

5h 57m1 stop Atlanta Hartsfield-Jackson

$127Frontier

Tue, Nov 3 - Tue, Nov 3

7:21 am - 10:15 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 54mnonstop

2:32 pm - 5:29 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 57mnonstop

$209American Airlines

Sat, Oct 10 - Tue, Oct 13

5:10 pm - 8:06 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 56mnonstop

7:34 am - 10:30 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 56mnonstop

$209American Airlines

Sat, Oct 24 - Tue, Oct 27

10:15 pm - 12:59 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 44mnonstop

9:37 am - 12:29 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 52mnonstop

$209United Airlines

Tue, Jan 12 - Tue, Jan 19

2:23 pm - 5:25 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 02mnonstop

6:44 pm - 9:35 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 51mnonstop

$209United Airlines

Tue, Nov 10 - Wed, Nov 18

2:42 pm - 4:05 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

25h 23m1 stop Fort Lauderdale

6:16 pm - 9:10 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 54mnonstop

$226Multiple Airlines

Sat, Oct 17 - Sat, Oct 24

1:55 pm - 10:09 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

8h 14m1 stop Detroit Metropolitan Wayne County

5:10 am - 10:29 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

5h 19m1 stop Detroit Metropolitan Wayne County

$229Delta

Tue, Oct 6 - Tue, Oct 13

10:59 am - 3:54 pmMDW Chicago Midway-IAH Houston George Bush Intcntl

4h 55m1 stop Atlanta Hartsfield-Jackson

5:10 am - 12:47 pmIAH Houston George Bush Intcntl-MDW Chicago Midway

7h 37m1 stop Detroit Metropolitan Wayne County

$229Delta

Mon, Nov 30 - Wed, Dec 9

5:05 pm - 1:17 pmPIA Greater Peoria-IAH Houston George Bush Intcntl

20h 12m1 stop Orlando Sanford Intl

9:41 am - 8:03 amIAH Houston George Bush Intcntl-PIA Greater Peoria

22h 22m2 stops Atlanta Hartsfield-Jackson Tampa

$335Multiple Airlines

Recent last minute flight deals from Illinois to George Bush Intcntl

Fri, Sep 25 - Wed, Sep 30

2:46 pm - 5:55 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 09mnonstop

11:25 am - 2:17 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 52mnonstop

$277Frontier

Sat, Sep 26 - Wed, Sep 30

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

3h 05mnonstop

11:25 am - 2:17 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 52mnonstop

$294Frontier

Sun, Sep 27 - Sun, Oct 4

5:28 pm - 11:59 pmPIA Greater Peoria-IAH Houston George Bush Intcntl

6h 31m1 stop Chicago O'Hare Intl

7:00 am - 12:01 pmIAH Houston George Bush Intcntl-PIA Greater Peoria

5h 01m1 stop Dallas/Fort Worth

$399American Airlines

Fri, Sep 25 - Mon, Sep 28

12:08 pm - 7:13 pmMLI Moline Quad-City-IAH Houston George Bush Intcntl

7h 05m1 stop Dallas/Fort Worth

7:01 pm - 11:18 pmIAH Houston George Bush Intcntl-MLI Moline Quad-City

4h 17m1 stop Dallas/Fort Worth

$429American Airlines

Tue, Sep 22 - Tue, Sep 22

4:11 pm - 7:10 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 59mnonstop

8:35 pm - 11:27 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 52mnonstop

$512United Airlines

Wed, Sep 23 - Wed, Sep 23

12:47 pm - 3:40 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 53mnonstop

5:06 pm - 8:05 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 59mnonstop

$512United Airlines

Wed, Sep 23 - Wed, Sep 30

7:11 am - 3:17 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

8h 06m1 stop Fort Lauderdale

9:04 pm - 1:10 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

16h 06m2 stops Atlanta Hartsfield-Jackson Jackson Mckellar Field

$519Multiple Airlines

Thu, Sep 24 - Wed, Sep 30

6:20 am - 8:06 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

13h 46m1 stop Baltimore/Washington

9:04 pm - 1:10 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

16h 06m2 stops Atlanta Hartsfield-Jackson Jackson Mckellar Field

$527Multiple Airlines

Sat, Sep 26 - Wed, Sep 30

6:05 am - 11:34 amMDW Chicago Midway-IAH Houston George Bush Intcntl

5h 29m1 stop Atlanta Hartsfield-Jackson

5:30 am - 12:39 pmIAH Houston George Bush Intcntl-MDW Chicago Midway

7h 09m1 stop Detroit Metropolitan Wayne County

$537Delta

Sat, Sep 26 - Tue, Sep 29

11:35 am - 4:18 pmMDW Chicago Midway-IAH Houston George Bush Intcntl

4h 43m1 stop Atlanta Hartsfield-Jackson

2:44 pm - 10:44 pmIAH Houston George Bush Intcntl-MDW Chicago Midway

8h 00m1 stop Atlanta Hartsfield-Jackson

$537Delta

Recent direct flight deals from Illinois to George Bush Intcntl

Sat, Jan 9 - Tue, Jan 12

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

$130Frontier

Tue, Dec 22 - Tue, Jan 5

4:10 pm - 7:10 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

$130Frontier

Tue, Oct 13 - 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

$133Frontier

Wed, Nov 4 - Sat, Nov 7

2:11 pm - 5:21 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 10mnonstop

6:16 pm - 9:10 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 54mnonstop

$133Frontier

Tue, Nov 3 - Tue, Nov 3

7:21 am - 10:15 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 54mnonstop

2:32 pm - 5:29 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 57mnonstop

$209American Airlines

Sat, Oct 10 - Tue, Oct 13

5:10 pm - 8:06 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 56mnonstop

7:34 am - 10:30 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 56mnonstop

$209American Airlines

Sat, Oct 24 - Tue, Oct 27

10:15 pm - 12:59 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 44mnonstop

9:37 am - 12:29 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 52mnonstop

$209United Airlines

Tue, Jan 12 - Tue, Jan 19

2:23 pm - 5:25 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 02mnonstop

6:44 pm - 9:35 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 51mnonstop

$209United Airlines

Sat, Dec 5 - Tue, Dec 8

9:19 am - 12:22 pmORD 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

$209United Airlines

Sat, Oct 17 - Mon, Oct 19

5:10 pm - 8:06 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 56mnonstop

7:34 am - 10:30 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 56mnonstop

$225American Airlines

Useful Info

Low season	September
High season	March
Cheapest flight	$47

Best time to beat the crowds but there is an average 6% increase in price.

Most popular time to fly with an average 4% increase in price.

Flight from St. Louis 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.