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.

$105 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, Jan 7 - Tue, Feb 16

1:30 pm - 12:26 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

10h 56m1 stop Atlanta Hartsfield-Jackson

6:00 am - 11:50 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

5h 50m1 stop Atlanta Hartsfield-Jackson

$201Frontier

Fri, Dec 4 - Sun, Dec 6

7:08 pm - 8:45 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

13h 37m1 stop Atlanta Hartsfield-Jackson

9:38 pm - 7:20 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

9h 42m1 stop Atlanta Hartsfield-Jackson

$201Frontier

Tue, Dec 1 - Tue, Dec 8

7:00 am - 12:18 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

29h 18m1 stop Fort Lauderdale

9:41 am - 10:00 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

12h 19m1 stop Atlanta Hartsfield-Jackson

$207Multiple Airlines

Wed, Dec 2 - Wed, Dec 2

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

3h 02mnonstop

5:23 pm - 8:16 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 53mnonstop

$214American Airlines

Wed, Dec 9 - Wed, Dec 9

1:31 pm - 4:25 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 54mnonstop

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

2h 46mnonstop

$214American Airlines

Thu, Dec 3 - Mon, Dec 7

8:30 am - 5:31 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

9h 01m1 stop Atlanta Hartsfield-Jackson

1:10 pm - 1:30 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

24h 20m1 stop Fort Lauderdale

$227Multiple Airlines

Sat, Dec 5 - Tue, Dec 8

4:08 pm - 11:58 pmMDW Chicago Midway-IAH Houston George Bush Intcntl

7h 50m1 stop Atlanta Hartsfield-Jackson

11:08 am - 4:50 pmIAH Houston George Bush Intcntl-MDW Chicago Midway

5h 42m1 stop Minneapolis St Paul

$231Delta

Sat, Dec 12 - Wed, Dec 16

11:28 am - 6:10 pmMDW Chicago Midway-IAH Houston George Bush Intcntl

6h 42m1 stop Atlanta Hartsfield-Jackson

5:25 am - 10:28 amIAH Houston George Bush Intcntl-MDW Chicago Midway

5h 03m1 stop Atlanta Hartsfield-Jackson

$239Delta

Tue, Dec 1 - Thu, Dec 3

5:45 am - 8:41 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 56mnonstop

1:40 pm - 4:29 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 49mnonstop

$251United Airlines

Mon, Nov 23 - Wed, Dec 2

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

2h 56mnonstop

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

2h 50mnonstop

$254United Airlines

Recent last minute flight deals from Illinois to George Bush Intcntl

Mon, Nov 9 - Mon, Nov 23

7:55 am - 2:44 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

6h 49m1 stop Fort Lauderdale

9:17 am - 12:11 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 54mnonstop

$227Frontier

Tue, Nov 10 - Sat, Nov 14

9:51 am - 8:55 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

11h 04m1 stop Orlando

8:18 am - 3:37 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

7h 19m1 stop Fort Lauderdale

$228Frontier

Fri, Nov 6 - Mon, Nov 9

1:04 pm - 4:11 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 07mnonstop

5:46 pm - 1:42 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

19h 56m1 stop Fort Lauderdale

$357Multiple Airlines

Fri, Nov 6 - Mon, Nov 9

1:04 pm - 4:11 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 07mnonstop

5:46 pm - 1:42 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

19h 56m1 stop Fort Lauderdale

$377Multiple Airlines

Tue, Nov 10 - Tue, Nov 17

11:33 am - 6:03 pmMLI Moline Quad-City-IAH Houston George Bush Intcntl

6h 30m1 stop Dallas/Fort Worth

11:42 am - 4:28 pmIAH Houston George Bush Intcntl-MLI Moline Quad-City

4h 46m1 stop Chicago O'Hare Intl

$378American Airlines

Tue, Nov 10 - Wed, Nov 18

5:00 pm - 11:59 pmMLI Moline Quad-City-IAH Houston George Bush Intcntl

6h 59m1 stop Atlanta Hartsfield-Jackson

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

6h 41m1 stop Atlanta Hartsfield-Jackson

$378Delta

Tue, Nov 10 - Tue, Nov 17

5:00 pm - 9:59 pmMLI Moline Quad-City-IAH Houston George Bush Intcntl

4h 59m1 stop Atlanta Hartsfield-Jackson

10:00 am - 4:22 pmIAH Houston George Bush Intcntl-MLI Moline Quad-City

6h 22m1 stop Atlanta Hartsfield-Jackson

$378Delta

Mon, Nov 9 - Mon, Nov 23

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

2h 54mnonstop

6:55 pm - 10:00 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

3h 05mnonstop

$383American Airlines

Mon, Nov 9 - Mon, Nov 9

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

2h 56mnonstop

8:40 pm - 11:26 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 46mnonstop

$469United Airlines

Fri, Nov 6 - Tue, Nov 10

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

3h 03mnonstop

10:05 pm - 12:46 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 41mnonstop

$469United Airlines

Recent direct flight deals from Illinois to George Bush Intcntl

Fri, Jan 22 - Sun, Jan 24

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

$201Frontier

Thu, Jan 21 - Sun, Jan 24

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

$201Frontier

Thu, Jan 14 - Sun, Jan 24

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

$201Frontier

Sat, Jan 30 - Sun, Jan 31

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

$201Frontier

Tue, Dec 15 - Tue, Dec 15

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

$214American Airlines

Wed, Dec 2 - Wed, Dec 2

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

3h 02mnonstop

5:23 pm - 8:16 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 53mnonstop

$214American Airlines

Wed, Dec 9 - Wed, Dec 9

1:31 pm - 4:25 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 54mnonstop

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

2h 46mnonstop

$214American Airlines

Tue, Dec 1 - Thu, Dec 3

5:45 am - 8:41 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 56mnonstop

1:40 pm - 4:29 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 49mnonstop

$251United Airlines

Sat, Nov 21 - Sat, Dec 5

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

2h 55mnonstop

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

2h 52mnonstop

$254United Airlines

Wed, Nov 25 - Wed, Dec 2

9:35 pm - 12:30 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 55mnonstop

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

2h 50mnonstop

$254United Airlines

Useful Info

Low season	September
High season	March
Cheapest flight	$105

Best time to beat the crowds but there is an average 10% increase in price.

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

Flight from Chicago O'Hare 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.