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.

$57 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

Fri, Nov 13 - Mon, Nov 16

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

$125Frontier

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 7 - Wed, Oct 14

8:35 am - 10:52 amSTL Lambert-St Louis-IAH Houston George Bush Intcntl

2h 17mnonstop

11:58 am - 2:10 pmIAH Houston George Bush Intcntl-STL Lambert-St Louis

2h 12mnonstop

$217United Airlines

Wed, Oct 7 - Mon, Oct 12

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

2h 12mnonstop

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

2h 15mnonstop

$217United Airlines

Tue, Oct 6 - Tue, Oct 13

8:48 am - 3:28 pmSTL Lambert-St Louis-IAH Houston George Bush Intcntl

6h 40m1 stop Dallas/Fort Worth

7:02 pm - 11:42 pmIAH Houston George Bush Intcntl-STL Lambert-St Louis

4h 40m1 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 13 - Tue, Oct 20

5:35 pm - 11:55 pmSTL Lambert-St Louis-IAH Houston George Bush Intcntl

6h 20m1 stop Atlanta Hartsfield-Jackson

7:00 am - 1:20 pmIAH Houston George Bush Intcntl-STL Lambert-St Louis

6h 20m1 stop Atlanta Hartsfield-Jackson

$237Delta

Wed, Oct 7 - Wed, Oct 14

5:04 pm - 11:55 pmMLI Moline Quad-City-IAH Houston George Bush Intcntl

6h 51m1 stop Atlanta Hartsfield-Jackson

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

4h 49m1 stop Atlanta Hartsfield-Jackson

$273Delta

Tue, Oct 20 - Mon, Oct 26

11:17 am - 9:38 pmBMI Bloomington-Normal-IAH Houston George Bush Intcntl

10h 21m1 stop Orlando Sanford Intl

8:35 pm - 10:27 amIAH Houston George Bush Intcntl-BMI Bloomington-Normal

13h 52m1 stop Orlando

$291Multiple Airlines

Thu, Oct 1 - Sat, Oct 3

6:00 am - 9:55 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

15h 55m1 stop Fort Lauderdale

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

2h 52mnonstop

$291Multiple Airlines

Recent last minute flight deals from Illinois to George Bush Intcntl

Fri, Sep 11 - Mon, Sep 14

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

$207Frontier

Sat, Sep 12 - Tue, Sep 29

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

3h 05mnonstop

8:25 am - 3:20 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

6h 55m1 stop Fort Lauderdale

$249Frontier

Mon, Sep 14 - Fri, Sep 25

5:19 pm - 9:14 pmSTL Lambert-St Louis-IAH Houston George Bush Intcntl

27h 55m1 stop Orlando

6:08 am - 1:10 pmIAH Houston George Bush Intcntl-STL Lambert-St Louis

7h 02m1 stop Atlanta Hartsfield-Jackson

$252Frontier

Thu, Sep 10 - Sat, Oct 31

4:57 pm - 11:59 pmMLI Moline Quad-City-IAH Houston George Bush Intcntl

7h 02m1 stop Chicago O'Hare Intl

11:26 am - 4:32 pmIAH Houston George Bush Intcntl-MLI Moline Quad-City

5h 06m1 stop Chicago O'Hare Intl

$346American Airlines

Thu, Sep 10 - Tue, Oct 13

7:11 am - 1:17 pmMLI Moline Quad-City-IAH Houston George Bush Intcntl

6h 06m1 stop Dallas/Fort Worth

6:00 am - 11:03 amIAH Houston George Bush Intcntl-MLI Moline Quad-City

5h 03m1 stop Dallas/Fort Worth

$346American Airlines

Thu, Sep 10 - Tue, Nov 3

11:19 am - 10:05 pmMLI Moline Quad-City-IAH Houston George Bush Intcntl

10h 46m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County

11:01 am - 10:30 pmIAH Houston George Bush Intcntl-MLI Moline Quad-City

11h 29m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

$376Delta

Thu, Sep 10 - Sat, Oct 17

11:19 am - 10:05 pmMLI Moline Quad-City-IAH Houston George Bush Intcntl

10h 46m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County

11:34 am - 10:30 pmIAH Houston George Bush Intcntl-MLI Moline Quad-City

10h 56m2 stops Detroit Metropolitan Wayne County Atlanta Hartsfield-Jackson

$409Delta

Thu, Sep 10 - Thu, Sep 10

8:50 am - 11:46 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 56mnonstop

3:34 pm - 6:30 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 56mnonstop

$588United Airlines

Mon, Sep 14 - Mon, Sep 21

6:25 pm - 9:16 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 51mnonstop

10:19 pm - 12:59 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 40mnonstop

$596United Airlines

Tue, Sep 15 - Fri, Sep 25

7:30 pm - 7:25 pmMDW Chicago Midway-IAH Houston George Bush Intcntl

23h 55m2 stops San Luis Potosi Mexico City Benito Juarez

6:08 am - 5:51 pmIAH Houston George Bush Intcntl-MDW Chicago Midway

11h 43m1 stop Atlanta Hartsfield-Jackson

$849Multiple Airlines

Recent direct flight deals from Illinois to George Bush Intcntl

Fri, Nov 13 - Mon, Nov 16

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

$125Frontier

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, Nov 11 - Sun, Nov 15

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, 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 7 - Wed, Oct 14

8:35 am - 10:52 amSTL Lambert-St Louis-IAH Houston George Bush Intcntl

2h 17mnonstop

11:58 am - 2:10 pmIAH Houston George Bush Intcntl-STL Lambert-St Louis

2h 12mnonstop

$217United Airlines

Thu, Dec 10 - Mon, Dec 14

6:00 am - 8:21 amSTL Lambert-St Louis-IAH Houston George Bush Intcntl

2h 21mnonstop

8:20 pm - 10:26 pmIAH Houston George Bush Intcntl-STL Lambert-St Louis

2h 06mnonstop

$217United Airlines

Wed, Oct 7 - Mon, Oct 12

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

2h 12mnonstop

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

2h 15mnonstop

$217United 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

Thu, Oct 29 - Mon, Nov 2

9:42 pm - 12:36 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 54mnonstop

11:42 am - 2:29 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 47mnonstop

$283American Airlines

Mon, Dec 21 - Thu, Dec 31

9:33 pm - 12:26 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 53mnonstop

8:00 am - 10:51 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 51mnonstop

$283American Airlines

Useful Info

Low season	September
High season	March
Cheapest flight	$57

Best time to beat the crowds with an average 7% drop 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.