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.

$49 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, Nov 12 - Sun, Nov 15

1:06 pm - 4:11 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 05mnonstop

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

2h 53mnonstop

$126Frontier

Wed, Oct 28 - Thu, Oct 29

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

3h 10mnonstop

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

2h 53mnonstop

$126Frontier

Thu, Jan 7 - Mon, Jan 11

6:15 am - 8:37 amSTL Lambert-St Louis-IAH Houston George Bush Intcntl

2h 22mnonstop

8:07 pm - 10:13 pmIAH Houston George Bush Intcntl-STL Lambert-St Louis

2h 06mnonstop

$217United Airlines

Thu, Oct 22 - Sat, Oct 24

6:15 am - 8:27 amSTL Lambert-St Louis-IAH Houston George Bush Intcntl

2h 12mnonstop

6:05 pm - 8:16 pmIAH Houston George Bush Intcntl-STL Lambert-St Louis

2h 11mnonstop

$217United Airlines

Sat, Oct 31 - Sat, Nov 7

11:31 am - 4:43 pmSTL Lambert-St Louis-IAH Houston George Bush Intcntl

5h 12m1 stop Chicago O'Hare Intl

12:13 pm - 5:54 pmIAH Houston George Bush Intcntl-STL Lambert-St Louis

5h 41m1 stop Dallas/Fort Worth

$237American Airlines

Wed, Dec 2 - Sat, Dec 5

11:34 am - 4:31 pmSTL Lambert-St Louis-IAH Houston George Bush Intcntl

4h 57m1 stop Chicago O'Hare Intl

5:27 pm - 11:59 pmIAH Houston George Bush Intcntl-STL Lambert-St Louis

6h 32m1 stop Chicago O'Hare Intl

$237American Airlines

Tue, Oct 6 - Thu, Oct 15

2:25 pm - 10:02 pmSTL Lambert-St Louis-IAH Houston George Bush Intcntl

7h 37m1 stop Atlanta Hartsfield-Jackson

5:29 am - 10:51 amIAH Houston George Bush Intcntl-STL Lambert-St Louis

5h 22m1 stop Atlanta Hartsfield-Jackson

$237Delta

Tue, Nov 10 - Tue, Nov 17

2:31 pm - 9:59 pmSTL Lambert-St Louis-IAH Houston George Bush Intcntl

7h 28m1 stop Atlanta Hartsfield-Jackson

7:00 am - 1:23 pmIAH Houston George Bush Intcntl-STL Lambert-St Louis

6h 23m1 stop Atlanta Hartsfield-Jackson

$237Delta

Tue, Nov 10 - Tue, Nov 17

7:00 am - 11:50 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

28h 50m1 stop Fort Lauderdale

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

5h 57m1 stop Atlanta Hartsfield-Jackson

$282Multiple Airlines

Tue, Nov 3 - Fri, Nov 6

2:42 pm - 11:50 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

21h 08m1 stop Fort Lauderdale

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

2h 53mnonstop

$299Multiple Airlines

Recent last minute flight deals from Illinois to George Bush Intcntl

Thu, Sep 17 - Mon, Sep 21

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

3h 09mnonstop

12:08 pm - 6:23 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

6h 15m1 stop Atlanta Hartsfield-Jackson

$145Frontier

Thu, Sep 17 - Fri, Sep 18

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

3h 09mnonstop

12:08 pm - 6:23 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

6h 15m1 stop Atlanta Hartsfield-Jackson

$192Frontier

Sat, Sep 19 - Mon, Sep 21

6:00 am - 1:18 pmMLI Moline Quad-City-IAH Houston George Bush Intcntl

7h 18m1 stop Chicago O'Hare Intl

6:00 am - 11:38 amIAH Houston George Bush Intcntl-MLI Moline Quad-City

5h 38m1 stop Dallas/Fort Worth

$388American Airlines

Tue, Sep 15 - Sat, Sep 19

4:43 pm - 10:30 pmPIA Greater Peoria-IAH Houston George Bush Intcntl

5h 47m1 stop Dallas/Fort Worth

11:00 am - 4:58 pmIAH Houston George Bush Intcntl-PIA Greater Peoria

5h 58m1 stop Chicago O'Hare Intl

$401American Airlines

Thu, Sep 17 - Sun, Sep 20

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

8h 06m1 stop Fort Lauderdale

6:25 am - 7:13 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

12h 48m2 stops Denver Intl Minneapolis St Paul

$441Multiple Airlines

Sat, Sep 19 - Sat, Sep 19

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

3h 05mnonstop

9:04 pm - 7:13 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

22h 09m2 stops Atlanta Hartsfield-Jackson Minneapolis St Paul

$454Multiple Airlines

Wed, Sep 16 - Sat, Sep 19

10:40 am - 1:36 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 56mnonstop

1:45 pm - 4:41 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 56mnonstop

$517United Airlines

Wed, Sep 16 - Wed, Sep 16

10:40 am - 1:36 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 56mnonstop

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

2h 52mnonstop

$517United Airlines

Sat, Sep 19 - Wed, Sep 23

4:30 pm - 11:54 pmMDW Chicago Midway-IAH Houston George Bush Intcntl

7h 24m1 stop Atlanta Hartsfield-Jackson

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

8h 00m1 stop Atlanta Hartsfield-Jackson

$517Delta

Wed, Sep 16 - Wed, Sep 23

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

5h 00m1 stop Atlanta Hartsfield-Jackson

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

8h 00m1 stop Atlanta Hartsfield-Jackson

$517Delta

Recent direct flight deals from Illinois to George Bush Intcntl

Thu, Nov 12 - Sun, Nov 15

1:06 pm - 4:11 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 05mnonstop

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

2h 53mnonstop

$126Frontier

Wed, Oct 28 - Thu, Oct 29

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

3h 10mnonstop

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

2h 53mnonstop

$126Frontier

Thu, Oct 1 - Fri, Oct 2

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

3h 09mnonstop

6:50 pm - 9:39 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 49mnonstop

$127Frontier

Thu, Oct 22 - Tue, Oct 27

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

2h 59mnonstop

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

2h 54mnonstop

$127Frontier

Thu, Jan 7 - Mon, Jan 11

6:15 am - 8:37 amSTL Lambert-St Louis-IAH Houston George Bush Intcntl

2h 22mnonstop

8:07 pm - 10:13 pmIAH Houston George Bush Intcntl-STL Lambert-St Louis

2h 06mnonstop

$217United Airlines

Thu, Oct 22 - Sat, Oct 24

6:15 am - 8:27 amSTL Lambert-St Louis-IAH Houston George Bush Intcntl

2h 12mnonstop

6:05 pm - 8:16 pmIAH Houston George Bush Intcntl-STL Lambert-St Louis

2h 11mnonstop

$217United Airlines

Wed, Oct 7 - Tue, Oct 13

11:10 am - 1:25 pmSTL Lambert-St Louis-IAH Houston George Bush Intcntl

2h 15mnonstop

8:15 pm - 10:30 pmIAH Houston George Bush Intcntl-STL Lambert-St Louis

2h 15mnonstop

$217United Airlines

Sat, Dec 12 - Mon, Dec 21

5:10 pm - 8:09 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 59mnonstop

3:18 pm - 6:16 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 58mnonstop

$283American Airlines

Sat, Oct 3 - Sat, Oct 3

6:53 am - 9:40 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 47mnonstop

2:08 pm - 5:08 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

3h 00mnonstop

$283American Airlines

Sat, Oct 31 - Tue, Nov 3

3:13 pm - 6:07 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 54mnonstop

5:11 pm - 8:10 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 59mnonstop

$283American Airlines

Useful Info

Low season	August
High season	March
Cheapest flight	$49

Best time to beat the crowds but there is an average 3% increase in price.

Most popular time to fly with an average 9% 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.