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.

$93 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

Sat, Oct 31 - Sun, Nov 1

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

$154Frontier

Wed, Nov 4 - Tue, Nov 10

7:35 pm - 7:23 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

11h 48m1 stop Atlanta Hartsfield-Jackson

12:19 pm - 6:30 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

6h 11m1 stop Atlanta Hartsfield-Jackson

$158Frontier

Sat, Nov 7 - Tue, Nov 10

3:12 pm - 6:17 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 05mnonstop

7:37 am - 10:30 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 53mnonstop

$209American Airlines

Sat, Nov 14 - Thu, Nov 19

10:35 am - 1:30 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 55mnonstop

9:12 am - 11:59 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 47mnonstop

$209American Airlines

Wed, Oct 28 - Wed, Oct 28

5:30 am - 8:25 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 55mnonstop

10:05 pm - 12:45 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 40mnonstop

$209United Airlines

Mon, Oct 26 - Mon, Nov 2

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

2h 56mnonstop

5:00 am - 7:51 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 51mnonstop

$209United Airlines

Tue, Nov 10 - Wed, Nov 18

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

28h 50m1 stop Fort Lauderdale

6:00 am - 6:30 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

12h 30m1 stop Atlanta Hartsfield-Jackson

$223Multiple Airlines

Wed, Feb 17 - Mon, Feb 22

5:55 pm - 11:58 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

6h 03m1 stop Atlanta Hartsfield-Jackson

11:50 am - 6:32 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

6h 42m1 stop Atlanta Hartsfield-Jackson

$229Delta

Sat, Dec 12 - Tue, Dec 15

4:08 pm - 12:02 amMDW Chicago Midway-IAH Houston George Bush Intcntl

7h 54m1 stop Atlanta Hartsfield-Jackson

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

6h 25m1 stop Atlanta Hartsfield-Jackson

$229Delta

Sun, Oct 25 - Sat, Oct 31

10:20 am - 2:48 pmRFD Chicago Greater Rockford-IAH Houston George Bush Intcntl

28h 28m1 stop Fort Lauderdale

8:18 am - 10:30 amIAH Houston George Bush Intcntl-RFD Chicago Greater Rockford

26h 12m1 stop Fort Lauderdale

$249Multiple Airlines

Recent last minute flight deals from Illinois to George Bush Intcntl

Tue, Oct 13 - Fri, Oct 16

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

2h 59mnonstop

12:07 pm - 6:31 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

6h 24m1 stop Atlanta Hartsfield-Jackson

$177Frontier

Sun, Oct 11 - Fri, Oct 16

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

2h 59mnonstop

12:07 pm - 6:31 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

6h 24m1 stop Atlanta Hartsfield-Jackson

$180Frontier

Tue, Oct 13 - Wed, Nov 11

8:45 am - 11:41 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

$363United Airlines

Tue, Oct 13 - Sat, Oct 31

1:27 pm - 6:21 pmMDW Chicago Midway-IAH Houston George Bush Intcntl

4h 54m1 stop Detroit Metropolitan Wayne County

11:34 am - 6:00 pmIAH Houston George Bush Intcntl-MDW Chicago Midway

6h 26m1 stop Detroit Metropolitan Wayne County

$383Delta

Tue, Oct 13 - Tue, Nov 3

1:27 pm - 6:21 pmMDW Chicago Midway-IAH Houston George Bush Intcntl

4h 54m1 stop Detroit Metropolitan Wayne County

5:02 pm - 10:33 pmIAH Houston George Bush Intcntl-MDW Chicago Midway

5h 31m1 stop Atlanta Hartsfield-Jackson

$383Delta

Sat, Oct 10 - Thu, Oct 15

4:42 pm - 11:59 pmPIA Greater Peoria-IAH Houston George Bush Intcntl

7h 17m1 stop Dallas/Fort Worth

5:00 am - 12:01 pmIAH Houston George Bush Intcntl-PIA Greater Peoria

7h 01m1 stop Dallas/Fort Worth

$415American Airlines

Sat, Oct 10 - Thu, Oct 15

6:00 am - 3:28 pmPIA Greater Peoria-IAH Houston George Bush Intcntl

9h 28m2 stops Chicago O'Hare Intl Dallas/Fort Worth

5:23 pm - 12:10 amIAH Houston George Bush Intcntl-PIA Greater Peoria

6h 47m1 stop Chicago O'Hare Intl

$420American Airlines

Mon, Oct 12 - Tue, Nov 3

6:25 am - 9:14 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 49mnonstop

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

2h 41mnonstop

$461United Airlines

Thu, Oct 8 - Tue, Oct 13

9:40 am - 2:48 pmRFD Chicago Greater Rockford-IAH Houston George Bush Intcntl

29h 08m1 stop Fort Lauderdale

9:12 pm - 8:50 amIAH Houston George Bush Intcntl-RFD Chicago Greater Rockford

35h 38m2 stops Atlanta Hartsfield-Jackson Fort Lauderdale

$543Multiple Airlines

Sat, Oct 10 - Tue, Oct 13

8:58 pm - 9:42 amRFD Chicago Greater Rockford-IAH Houston George Bush Intcntl

12h 44m1 stop Phoenix-Mesa Gateway

9:12 pm - 8:50 amIAH Houston George Bush Intcntl-RFD Chicago Greater Rockford

35h 38m2 stops Atlanta Hartsfield-Jackson Fort Lauderdale

$584Multiple Airlines

Recent direct flight deals from Illinois to George Bush Intcntl

Sat, Oct 31 - Sun, Nov 1

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

$154Frontier

Fri, Dec 11 - Mon, Dec 14

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

$159Frontier

Sat, Jan 9 - Mon, Jan 18

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

$160Frontier

Thu, Nov 12 - Mon, Nov 16

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

3h 07mnonstop

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

2h 53mnonstop

$160Frontier

Sat, Nov 14 - Tue, Nov 17

10:35 am - 1:30 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 55mnonstop

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

2h 47mnonstop

$209American Airlines

Tue, Nov 3 - Tue, Nov 10

7:21 am - 10:15 amORD 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

$209American Airlines

Sat, Nov 7 - Mon, Nov 9

5:15 pm - 8:15 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 00mnonstop

10:05 pm - 12:45 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 40mnonstop

$209United Airlines

Mon, Oct 26 - Mon, Oct 26

7:29 am - 10:32 amORD 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

Thu, Oct 29 - Mon, Nov 2

1:50 pm - 4:43 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 53mnonstop

7:36 am - 10:29 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 53mnonstop

$209American Airlines

Wed, Nov 4 - Wed, Nov 11

5:30 am - 8:25 amORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 55mnonstop

8:25 am - 11:18 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 53mnonstop

$209United Airlines

Useful Info

Low season	September
High season	March
Cheapest flight	$93

Best time to beat the crowds but there is an average 13% increase in price.

Most popular time to fly with an average 6% 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.