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.

$106 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, Dec 31 - Tue, Jan 5

4:08 pm - 7:17 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 09mnonstop

7:26 am - 12:26 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

17h 00m1 stop Denver Intl

$204Frontier

Thu, Dec 17 - Fri, Dec 18

5:58 am - 1:27 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

7h 29m1 stop Atlanta Hartsfield-Jackson

8:12 pm - 11:06 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 54mnonstop

$204Frontier

Sat, Dec 5 - Sat, Dec 5

1:50 pm - 4:47 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 57mnonstop

6:42 pm - 9:45 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

3h 03mnonstop

$224American Airlines

Tue, Dec 8 - Tue, Dec 15

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

3h 00mnonstop

11:15 am - 2:04 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 49mnonstop

$229American Airlines

Sat, Dec 5 - Sat, Dec 5

6:00 am - 11:25 amMDW Chicago Midway-IAH Houston George Bush Intcntl

5h 25m1 stop Atlanta Hartsfield-Jackson

4:29 pm - 10:54 pmIAH Houston George Bush Intcntl-MDW Chicago Midway

6h 25m1 stop Atlanta Hartsfield-Jackson

$231Delta

Sat, Dec 5 - Tue, Dec 8

6:00 am - 11:25 amMDW Chicago Midway-IAH Houston George Bush Intcntl

5h 25m1 stop Atlanta Hartsfield-Jackson

7:00 am - 12:04 pmIAH Houston George Bush Intcntl-MDW Chicago Midway

5h 04m1 stop Atlanta Hartsfield-Jackson

$231Delta

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

$237Multiple Airlines

Sat, Dec 12 - Wed, Dec 16

7:25 am - 7:55 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

12h 30m1 stop Denver Intl

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

24h 20m1 stop Fort Lauderdale

$239Multiple Airlines

Wed, Dec 16 - Tue, Dec 29

7:50 pm - 10:47 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 57mnonstop

10:05 pm - 12:44 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 39mnonstop

$259United Airlines

Tue, Mar 16 - Sat, Mar 20

7:00 pm - 12:28 amMLI Moline Quad-City-IAH Houston George Bush Intcntl

5h 28m1 stop Chicago O'Hare Intl

4:30 pm - 11:12 pmIAH Houston George Bush Intcntl-MLI Moline Quad-City

6h 42m1 stop Chicago O'Hare Intl

$283United Airlines

Recent last minute flight deals from Illinois to George Bush Intcntl

Thu, Nov 12 - Fri, Nov 13

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

6h 49m1 stop Fort Lauderdale

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

7h 19m1 stop Fort Lauderdale

$222Frontier

Thu, Nov 12 - Sat, Nov 21

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

30h 49m1 stop Fort Lauderdale

10:59 pm - 12:53 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

25h 54m1 stop Denver Intl

$230Frontier

Tue, Nov 10 - Wed, Nov 11

6:59 am - 1:30 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

6h 31m1 stop New Orleans Louis Armstrong

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

2h 49mnonstop

$232United Airlines

Tue, Nov 10 - Mon, Nov 16

8:40 am - 1:24 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

4h 44m1 stop Austin Bergstrom

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

2h 49mnonstop

$254United Airlines

Thu, Nov 12 - Fri, Nov 13

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

3h 07mnonstop

12:45 pm - 11:36 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

10h 51m1 stop Fort Lauderdale

$354Multiple Airlines

Wed, Nov 11 - Sun, Nov 15

2:59 pm - 11:50 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

20h 51m1 stop Fort Lauderdale

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

2h 53mnonstop

$361Multiple Airlines

Thu, Nov 12 - Tue, Nov 17

11:20 am - 6:12 pmMLI Moline Quad-City-IAH Houston George Bush Intcntl

6h 52m1 stop Chicago O'Hare Intl

5:00 am - 10:59 amIAH Houston George Bush Intcntl-MLI Moline Quad-City

5h 59m1 stop Dallas/Fort Worth

$418American Airlines

Thu, Nov 12 - Tue, Nov 17

5:13 pm - 11:59 pmMLI Moline Quad-City-IAH Houston George Bush Intcntl

6h 46m1 stop Atlanta Hartsfield-Jackson

11:35 am - 11:08 pmIAH Houston George Bush Intcntl-MLI Moline Quad-City

11h 33m2 stops Detroit Metropolitan Wayne County Atlanta Hartsfield-Jackson

$423Delta

Fri, Nov 13 - Tue, Dec 1

9:30 am - 5:17 pmMDW Chicago Midway-IAH Houston George Bush Intcntl

7h 47m2 stops Detroit Metropolitan Wayne County Atlanta Hartsfield-Jackson

6:15 am - 11:59 amIAH Houston George Bush Intcntl-MDW Chicago Midway

5h 44m1 stop Minneapolis St Paul

$424Delta

Tue, Nov 10 - Sun, Nov 15

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

6h 30m1 stop Dallas/Fort Worth

6:55 pm - 12:07 amIAH Houston George Bush Intcntl-MLI Moline Quad-City

5h 12m1 stop Chicago O'Hare Intl

$433American Airlines

Recent direct flight deals from Illinois to George Bush Intcntl

Fri, Feb 26 - Mon, Mar 1

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

$205Frontier

Thu, Jan 21 - Mon, Jan 25

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

$205Frontier

Fri, Jan 1 - Sat, Jan 9

4:08 pm - 7:17 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

$205Frontier

Mon, Dec 21 - Thu, Dec 31

5:57 pm - 9:04 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 07mnonstop

8:12 pm - 11:06 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 54mnonstop

$205Frontier

Sat, Dec 5 - Sat, Dec 5

1:50 pm - 4:47 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 57mnonstop

6:42 pm - 9:45 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

3h 03mnonstop

$224American Airlines

Sat, Dec 12 - Wed, Dec 16

1:50 pm - 4:47 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 57mnonstop

9:29 am - 12:15 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 46mnonstop

$229American Airlines

Sat, Dec 12 - Wed, Dec 16

9:09 pm - 12:04 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

$229American Airlines

Wed, Dec 16 - Tue, Dec 29

7:50 pm - 10:47 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 57mnonstop

10:05 pm - 12:44 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 39mnonstop

$259United Airlines

Fri, Dec 18 - Tue, Dec 22

8:12 pm - 11:13 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 01mnonstop

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

2h 50mnonstop

$297United Airlines

Fri, Dec 18 - Fri, Dec 18

7:00 am - 10:00 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 00mnonstop

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

2h 51mnonstop

$297United Airlines

Useful Info

Low season	September
High season	March
Cheapest flight	$106

Best time to beat the crowds but there is an average 9% increase in price.

Most popular time to fly with an average 3% 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.