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.

$101 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

Wed, Jan 6 - Tue, Jan 12

7:26 pm - 12:34 pmSPI Springfield Capital-IAH Houston George Bush Intcntl

17h 08m1 stop Orlando

5:44 pm - 6:46 pmIAH Houston George Bush Intcntl-SPI Springfield Capital

25h 02m1 stop Orlando

$193Multiple Airlines

Tue, Dec 22 - Tue, Jan 5

7:45 am - 10:04 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

14h 19m1 stop Denver Intl

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

17h 00m1 stop Denver Intl

$198Frontier

Thu, Dec 31 - Sun, Jan 10

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

7h 29m1 stop Atlanta Hartsfield-Jackson

8:38 pm - 11:32 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 54mnonstop

$198Frontier

Tue, Dec 1 - Thu, Dec 3

8:15 am - 5:31 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

9h 16m1 stop Atlanta Hartsfield-Jackson

7:00 am - 11:33 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

16h 33m1 stop Fort Lauderdale

$210Multiple Airlines

Tue, Dec 1 - Sat, Dec 5

3:13 pm - 6:15 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 02mnonstop

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

2h 46mnonstop

$211American Airlines

Wed, Dec 2 - Wed, Dec 9

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

3h 02mnonstop

2:43 pm - 5:29 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 46mnonstop

$211American Airlines

Sat, Dec 5 - Sat, Dec 12

7:50 pm - 10:48 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 58mnonstop

1:40 pm - 4:30 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 50mnonstop

$211United Airlines

Sat, Dec 5 - Mon, Dec 7

7:30 am - 10:33 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

$219United Airlines

Tue, Dec 1 - Sat, Dec 5

10:24 am - 5:59 pmMDW Chicago Midway-IAH Houston George Bush Intcntl

7h 35m1 stop Minneapolis St Paul

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

5h 44m1 stop Minneapolis St Paul

$231Delta

Wed, Dec 9 - Sat, Dec 12

9:37 am - 3:17 pmMDW Chicago Midway-IAH Houston George Bush Intcntl

5h 40m1 stop Detroit Metropolitan Wayne County

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

5h 42m1 stop Minneapolis St Paul

$231Delta

Recent last minute flight deals from Illinois to George Bush Intcntl

Thu, Nov 5 - Thu, Nov 12

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

$201Frontier

Sun, Nov 1 - Thu, Nov 12

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

30h 49m1 stop Fort Lauderdale

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

7h 19m1 stop Fort Lauderdale

$207Frontier

Thu, Nov 5 - Tue, Nov 10

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

6h 49m1 stop Fort Lauderdale

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

10h 51m1 stop Fort Lauderdale

$285Multiple Airlines

Thu, Nov 5 - Mon, Nov 9

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

6h 49m1 stop Fort Lauderdale

12:45 pm - 1:42 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

24h 57m1 stop Fort Lauderdale

$315Multiple Airlines

Tue, Nov 3 - Sat, Nov 7

6:00 am - 12:04 pmMLI Moline Quad-City-IAH Houston George Bush Intcntl

6h 04m1 stop Atlanta Hartsfield-Jackson

2:22 pm - 10:30 pmIAH Houston George Bush Intcntl-MLI Moline Quad-City

8h 08m1 stop Atlanta Hartsfield-Jackson

$387Delta

Thu, Nov 5 - Thu, Nov 12

5:39 pm - 11:57 pmPIA Greater Peoria-IAH Houston George Bush Intcntl

6h 18m1 stop Chicago O'Hare Intl

7:00 am - 11:55 amIAH Houston George Bush Intcntl-PIA Greater Peoria

4h 55m1 stop Dallas/Fort Worth

$399American Airlines

Tue, Nov 3 - Sun, Nov 8

6:00 am - 12:04 pmMLI Moline Quad-City-IAH Houston George Bush Intcntl

6h 04m1 stop Atlanta Hartsfield-Jackson

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

4h 49m1 stop Atlanta Hartsfield-Jackson

$408Delta

Wed, Nov 4 - Sun, Nov 8

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

$408American Airlines

Wed, Nov 4 - Sat, Nov 7

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

2h 55mnonstop

6:48 pm - 9:40 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 52mnonstop

$469United Airlines

Sat, Oct 31 - Tue, Nov 3

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

2h 55mnonstop

3:40 pm - 6:30 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 50mnonstop

$469United Airlines

Recent direct flight deals from Illinois to George Bush Intcntl

Thu, Jan 14 - Thu, Jan 21

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

$199Frontier

Mon, Dec 21 - Thu, Dec 31

6:19 pm - 9:25 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 06mnonstop

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

2h 54mnonstop

$199Frontier

Mon, Dec 21 - Fri, Dec 25

6:19 pm - 9:25 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 06mnonstop

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

2h 54mnonstop

$200Frontier

Fri, Dec 18 - Mon, Dec 21

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

3h 09mnonstop

10:20 pm - 1:08 amIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 48mnonstop

$200Frontier

Tue, Dec 1 - Sat, Dec 5

3:13 pm - 6:15 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 02mnonstop

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

2h 46mnonstop

$211American Airlines

Wed, Dec 2 - Wed, Dec 9

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

3h 02mnonstop

2:43 pm - 5:29 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 46mnonstop

$211American Airlines

Sat, Dec 5 - Sat, Dec 12

7:50 pm - 10:48 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

2h 58mnonstop

1:40 pm - 4:30 pmIAH Houston George Bush Intcntl-ORD Chicago O'Hare Intl

2h 50mnonstop

$211United Airlines

Sat, Dec 5 - Tue, Dec 8

3:00 pm - 6:09 pmORD Chicago O'Hare Intl-IAH Houston George Bush Intcntl

3h 09mnonstop

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

2h 49mnonstop

$211American Airlines

Sat, Dec 5 - Mon, Dec 7

7:30 am - 10:33 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

$219United Airlines

Wed, Nov 18 - Sat, Nov 21

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

3h 00mnonstop

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

2h 51mnonstop

$227United Airlines

Useful Info

Low season	September
High season	March
Cheapest flight	$101

Best time to beat the crowds but there is an average 11% increase in price.

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

Flight from Chicago Midway 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.