$75+ Cheap flights from Illinois to George Bush Intcntl (IAH)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IAH
Jul 31 — Aug 71
Round-trip
1 adult, Economy
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Cheapest flights from Illinois to George Bush IntcntlExplore the most affordable flight options available from Illinois to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2026.
Explore the most affordable flight options available from Illinois to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/92:46 pm
ORD
- IAH
Nonstop3h 01m
Frontier
Tue 10/136:42 pm
IAH
- ORD
Nonstop2h 52m
Frontier
Deal found 6/28![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/228:05 am
ORD
- IAH
1 stop30h 45m
Frontier
Sat 7/259:58 pm
IAH
- ORD
Nonstop2h 51m
Frontier
Deal found 6/28![Frontier logo]()
$162
This Frontier deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:30 pm
ORD
- IAH
Nonstop3h 17m
Frontier
Wed 8/128:02 pm
IAH
- ORD
1 stop12h 00m
Frontier
Deal found 6/27![Frontier logo]()
$163
This Frontier deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/219:57 pm
ORD
- IAH
1 stop12h 37m
Frontier
Tue 7/289:58 pm
IAH
- ORD
Nonstop2h 51m
Frontier
Deal found 6/30![Frontier logo]()
$164
This Frontier deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/102:46 pm
ORD
- IAH
Nonstop3h 01m
Frontier
Wed 10/148:44 pm
IAH
- ORD
1 stop11h 31m
Frontier
Deal found 6/29![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:46 pm
ORD
- IAH
Nonstop3h 17m
Frontier
Sat 7/189:58 pm
IAH
- ORD
Nonstop2h 51m
Frontier
Deal found 6/26![Frontier logo]()
$167
This Super.com deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:46 pm
ORD
- IAH
Nonstop3h 17m
Frontier
Mon 7/279:58 pm
IAH
- ORD
Nonstop2h 51m
Frontier
Deal found 6/30![Frontier logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/105:30 pm
ORD
- IAH
Nonstop3h 17m
Frontier
Sat 8/221:45 pm
IAH
- ORD
1 stop9h 23m
Frontier
Deal found 6/30![Frontier logo]()
$169
This Frontier deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/215:46 pm
ORD
- IAH
Nonstop3h 17m
Frontier
Thu 7/309:58 pm
IAH
- ORD
Nonstop2h 51m
Frontier
Deal found 6/30![Frontier logo]()
$170
This Trip.com deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:05 am
ORD
- IAH
1 stop7h 19m
Frontier
Sat 8/2912:53 pm
IAH
- ORD
Nonstop3h 06m
Frontier
Deal found 6/28![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/185:46 pm
ORD
- IAH
Nonstop3h 17m
Frontier
Sat 7/259:58 pm
IAH
- ORD
Nonstop2h 51m
Frontier
Deal found 6/27![Frontier logo]()
$172
This Frontier deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1211:06 am
MDW
- IAH
1 stop11h 23m
Frontier
Tue 8/184:32 pm
IAH
- MDW
1 stop6h 15m
Frontier
Deal found 6/30![Frontier logo]()
$210
Best flights from Illinois to George Bush IntcntlDiscover carefully curated flight deals from Illinois to George Bush Intcntl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 1, 2026.
Discover carefully curated flight deals from Illinois to George Bush Intcntl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 1, 2026.
This Delta deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/229:24 am
MDW
- IAH
1 stop4h 56m
Delta
Sat 8/298:05 am
IAH
- MDW
1 stop7h 33m
Delta
Deal found 6/29![Delta logo]()
$225
This American Airlines deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:00 am
PIA
- IAH
1 stop4h 44m
American Airlines
Sat 8/86:00 am
IAH
- PIA
1 stop5h 50m
American Airlines
Deal found 6/28![American Airlines logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:24 pm
PIA
- IAH
1 stop6h 45m
Multiple Airlines
Mon 10/268:44 pm
IAH
- PIA
2 stops36h 17m
Multiple Airlines
Deal found 6/27![Multiple Airlines logo]()
$342
This United Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/36:30 pm
STL
- IAH
Nonstop2h 20m
United Airlines
Wed 8/58:00 am
IAH
- STL
Nonstop2h 07m
United Airlines
Deal found 6/30![United Airlines logo]()
$343
This Delta deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/59:24 am
MDW
- IAH
1 stop4h 56m
Delta
Tue 9/811:26 am
IAH
- MDW
1 stop5h 31m
Delta
Deal found 6/27![Delta logo]()
$225
This Delta deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:24 am
MDW
- IAH
1 stop4h 56m
Delta
Tue 9/155:40 am
IAH
- MDW
1 stop6h 15m
Delta
Deal found 6/28![Delta logo]()
$225
This Delta deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/225:18 pm
ORD
- IAH
1 stop5h 01m
Delta
Sat 8/298:05 am
IAH
- ORD
1 stop6h 43m
Delta
Deal found 6/29![Delta logo]()
$225
This American Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/54:43 pm
PIA
- IAH
1 stop5h 37m
American Airlines
Mon 9/76:49 pm
IAH
- PIA
1 stop4h 30m
American Airlines
Deal found 6/30![American Airlines logo]()
$293
This Delta deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/191:59 pm
ORD
- IAH
1 stop8h 20m
Delta
Sat 8/222:37 pm
IAH
- ORD
1 stop6h 18m
Delta
Deal found 6/28![Delta logo]()
$225
This Delta deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2010:54 am
MDW
- IAH
1 stop4h 48m
Delta
Sat 8/225:20 am
IAH
- MDW
2 stops10h 18m
Delta
Deal found 6/28![Delta logo]()
$230
This American Airlines deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:04 pm
BMI
- IAH
1 stop5h 47m
American Airlines
Sun 8/25:02 pm
IAH
- BMI
1 stop7h 33m
American Airlines
Deal found 6/27![American Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:15 am
STL
- IAH
Nonstop2h 17m
United Airlines
Sat 9/123:36 pm
IAH
- STL
Nonstop2h 12m
United Airlines
Deal found 6/29![United Airlines logo]()
$343
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/311:41 am
EVV
- IAH
2 stops24h 41m
Multiple Airlines
Wed 8/57:23 pm
IAH
- EVV
1 stop23h 41m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$344
This Delta deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/282:07 pm
ORD
- IAH
2 stops9h 50m
Delta
Tue 8/410:21 am
IAH
- ORD
1 stop6h 30m
Delta
Deal found 6/29![Delta logo]()
$232
This American Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:32 am
BMI
- IAH
1 stop6h 47m
American Airlines
Thu 8/136:37 pm
IAH
- BMI
1 stop5h 22m
American Airlines
Deal found 6/30![American Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:30 am
CMI
- IAH
1 stop5h 33m
United Airlines
Tue 11/176:15 am
IAH
- CMI
1 stop6h 35m
United Airlines
Deal found 6/30![United Airlines logo]()
$350
This Delta deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/511:22 am
ORD
- IAH
2 stops8h 32m
Delta
Wed 8/123:15 pm
IAH
- ORD
1 stop5h 15m
Delta
Deal found 6/26![Delta logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/28:16 pm
EVV
- IAH
1 stop12h 29m
Multiple Airlines
Wed 8/57:23 pm
IAH
- EVV
1 stop23h 41m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$378
This American Airlines deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/44:30 pm
BMI
- IAH
1 stop5h 54m
American Airlines
Tue 8/112:09 pm
IAH
- BMI
2 stops9h 50m
American Airlines
Deal found 6/27![American Airlines logo]()
$314
This United Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/85:43 pm
PIA
- IAH
1 stop6h 51m
United Airlines
Wed 8/125:00 am
IAH
- PIA
1 stop5h 06m
United Airlines
Deal found 6/30![United Airlines logo]()
$357
This Delta deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/282:07 pm
ORD
- IAH
2 stops9h 50m
Delta
Wed 8/125:20 am
IAH
- ORD
1 stop5h 22m
Delta
Deal found 6/26![Delta logo]()
$234
This American Airlines deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/134:30 pm
BMI
- IAH
1 stop7h 28m
American Airlines
Fri 7/315:02 pm
IAH
- BMI
1 stop7h 33m
American Airlines
Deal found 6/26![American Airlines logo]()
$324
This United Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:00 am
STL
- IAH
1 stop5h 43m
United Airlines
Sat 11/1412:04 pm
IAH
- STL
Nonstop2h 09m
United Airlines
Deal found 6/30![United Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/155:10 pm
ORD
- IAH
1 stop4h 56m
Delta
Wed 9/3010:44 am
IAH
- ORD
2 stops9h 46m
Delta
Deal found 6/30![Delta logo]()
$234
This United Airlines deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/145:30 pm
STL
- IAH
1 stop6h 57m
United Airlines
Sat 8/226:15 pm
IAH
- STL
Nonstop2h 12m
United Airlines
Deal found 6/26![United Airlines logo]()
$364
This American Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:04 pm
BMI
- IAH
1 stop5h 47m
American Airlines
Sun 7/196:48 pm
IAH
- BMI
1 stop5h 47m
American Airlines
Deal found 6/30![American Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/33:55 pm
ORD
- IAH
1 stop5h 35m
Delta
Sat 10/1011:30 am
IAH
- ORD
2 stops12h 20m
Delta
Deal found 6/26![Delta logo]()
$234
This United Airlines deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/48:35 am
STL
- IAH
Nonstop2h 26m
United Airlines
Sun 11/86:15 am
IAH
- STL
1 stop5h 51m
United Airlines
Deal found 6/26![United Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1512:29 pm
ORD
- IAH
2 stops11h 23m
Delta
Tue 8/258:05 am
IAH
- ORD
2 stops12h 25m
Delta
Deal found 6/30![Delta logo]()
$239
This American Airlines deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/256:13 am
PIA
- IAH
2 stops9h 27m
American Airlines
Wed 12/304:30 pm
IAH
- PIA
2 stops7h 40m
American Airlines
Deal found 6/29![American Airlines logo]()
$350
Last-minute flights from Illinois to George Bush IntcntlDiscover last-minute flight deals from Illinois to George Bush Intcntl. Data last updated July 1, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to George Bush Intcntl. Data last updated July 1, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:46 pm
ORD
- IAH
Nonstop3h 17m
Frontier
Fri 8/79:42 pm
IAH
- ORD
Nonstop2h 51m
Frontier
Deal found 6/26![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:46 pm
ORD
- IAH
Nonstop3h 17m
Frontier
Sat 7/189:58 pm
IAH
- ORD
Nonstop2h 51m
Frontier
Deal found 6/26![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/185:46 pm
ORD
- IAH
Nonstop3h 17m
Frontier
Sat 7/259:58 pm
IAH
- ORD
Nonstop2h 51m
Frontier
Deal found 6/27![Frontier logo]()
$172
This Frontier deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/219:57 pm
ORD
- IAH
1 stop12h 37m
Frontier
Tue 7/289:58 pm
IAH
- ORD
Nonstop2h 51m
Frontier
Deal found 6/30![Frontier logo]()
$164
This Frontier deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/215:46 pm
ORD
- IAH
Nonstop3h 17m
Frontier
Thu 7/309:58 pm
IAH
- ORD
Nonstop2h 51m
Frontier
Deal found 6/30![Frontier logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/228:05 am
ORD
- IAH
1 stop30h 45m
Frontier
Sat 7/259:58 pm
IAH
- ORD
Nonstop2h 51m
Frontier
Deal found 6/28![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/228:05 am
ORD
- IAH
1 stop30h 45m
Frontier
Tue 7/289:58 pm
IAH
- ORD
Nonstop2h 51m
Frontier
Deal found 6/28![Frontier logo]()
$163
This Super.com deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:46 pm
ORD
- IAH
Nonstop3h 17m
Frontier
Mon 7/279:58 pm
IAH
- ORD
Nonstop2h 51m
Frontier
Deal found 6/30![Frontier logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/228:05 am
ORD
- IAH
1 stop30h 45m
Frontier
Wed 8/59:42 pm
IAH
- ORD
Nonstop2h 51m
Frontier
Deal found 6/27![Frontier logo]()
$174
This Frontier deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:46 pm
ORD
- IAH
Nonstop3h 17m
Frontier
Tue 8/48:50 am
IAH
- ORD
1 stop11h 03m
Frontier
Deal found 7/1![Frontier logo]()
$165
This Frontier deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:46 pm
ORD
- IAH
Nonstop3h 17m
Frontier
Sun 8/29:58 pm
IAH
- ORD
Nonstop2h 51m
Frontier
Deal found 6/30![Frontier logo]()
$173
This Frontier deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/285:46 pm
ORD
- IAH
Nonstop3h 17m
Frontier
Wed 7/298:02 pm
IAH
- ORD
1 stop11h 51m
Frontier
Deal found 7/1![Frontier logo]()
$175
One-way flights from Illinois to George Bush IntcntlSearch for one-way flight options from Illinois to George Bush Intcntl. Find affordable one-way fares based on user searches. Data last updated July 1, 2026.
Search for one-way flight options from Illinois to George Bush Intcntl. Find affordable one-way fares based on user searches. Data last updated July 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:17 pm
STL
- IAH
1 stop13h 03m
Frontier
Deal found 7/1![Frontier logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/282:46 pm
ORD
- IAH
Nonstop3h 01m
Frontier
Deal found 6/27![Frontier logo]()
$77
This Kiwi.com deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/82:46 pm
ORD
- IAH
Nonstop3h 01m
Frontier
Deal found 6/27![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:46 pm
ORD
- IAH
Nonstop3h 17m
Frontier
Deal found 6/26![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/54:57 pm
STL
- IAH
1 stop5h 32m
Frontier
Deal found 6/27![Frontier logo]()
$82
This Frontier deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/142:46 pm
ORD
- IAH
Nonstop3h 01m
Frontier
Deal found 6/30![Frontier logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/84:57 pm
STL
- IAH
1 stop5h 32m
Frontier
Deal found 6/29![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:34 pm
STL
- IAH
1 stop12h 46m
Frontier
Deal found 6/26![Frontier logo]()
$85
This Kiwi.com deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/274:57 pm
STL
- IAH
1 stop17h 06m
Frontier
Deal found 6/28![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:17 pm
STL
- IAH
1 stop15h 46m
Frontier
Deal found 7/1![Frontier logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/288:05 am
ORD
- IAH
1 stop30h 45m
Frontier
Deal found 6/28![Frontier logo]()
$92
This Kiwi.com deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1310:35 am
STL
- IAH
1 stop26h 05m
Frontier
Deal found 6/28![Frontier logo]()
$93
Find flight deals from Illinois to George Bush Intcntl
Keep the following information in mind while searching for Illinois to George Bush Intcntl flight deals. Data was last updated July 1, 2026.
Round-trip from | $160 (Kiwi.com) |
|---|---|
One-way from | $75 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $238 |
Good round-trip deal | $279 or less |
Good one-way deal | $68 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to George Bush Intcntl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 1, 2026.
Use the filters below to find and compare flights from Illinois to Houston George Bush Intcntl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoHouston
MDW - IAH
MDWIAH
Chicago Midway
Sat 8/22
9:24 am-2:20 pm
1 stop4h 56m
Houston George Bush Intcntl
Sat 8/29
8:05 am-3:38 pm
1 stop7h 33m
$225
ChicagoHouston
MDW - IAH
MDWIAH
Chicago Midway
Sat 9/5
9:24 am-2:20 pm
1 stop4h 56m
Houston George Bush Intcntl
Tue 9/8
11:26 am-4:57 pm
1 stop5h 31m
$225
ChicagoHouston
MDW - IAH
MDWIAH
Chicago Midway
Tue 9/1
9:24 am-2:20 pm
1 stop4h 56m
Houston George Bush Intcntl
Tue 9/15
5:40 am-11:55 am
1 stop6h 15m
$225
ChicagoHouston
ORD - IAH
ORDIAH
Chicago O'Hare Intl
Sat 8/22
5:18 pm-10:19 pm
1 stop5h 01m
Houston George Bush Intcntl
Sat 8/29
8:05 am-2:48 pm
1 stop6h 43m
$225
ChicagoHouston
ORD - IAH
ORDIAH
Chicago O'Hare Intl
Wed 8/19
1:59 pm-10:19 pm
1 stop8h 20m
Houston George Bush Intcntl
Sat 8/22
2:37 pm-8:55 pm
1 stop6h 18m
$225
ChicagoHouston
MDW - IAH
MDWIAH
Chicago Midway
Thu 8/20
10:54 am-3:42 pm
1 stop4h 48m
Houston George Bush Intcntl
Sat 8/22
5:20 am-3:38 pm
2 stops10h 18m
$230
ChicagoHouston
ORD - IAH
ORDIAH
Chicago O'Hare Intl
Tue 7/28
2:07 pm-11:57 pm
2 stops9h 50m
Houston George Bush Intcntl
Tue 8/4
10:21 am-4:51 pm
1 stop6h 30m
$232
ChicagoHouston
ORD - IAH
ORDIAH
Chicago O'Hare Intl
Wed 8/5
11:22 am-7:54 pm
2 stops8h 32m
Houston George Bush Intcntl
Wed 8/12
3:15 pm-8:30 pm
1 stop5h 15m
$234
ChicagoHouston
ORD - IAH
ORDIAH
Chicago O'Hare Intl
Tue 7/28
2:07 pm-11:57 pm
2 stops9h 50m
Houston George Bush Intcntl
Wed 8/12
5:20 am-10:42 am
1 stop5h 22m
$234
ChicagoHouston
ORD - IAH
ORDIAH
Chicago O'Hare Intl
Tue 9/15
5:10 pm-10:06 pm
1 stop4h 56m
Houston George Bush Intcntl
Wed 9/30
10:44 am-8:30 pm
2 stops9h 46m
$234
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Illinois to George Bush Intcntl
Have a flexible travel schedule? Discover the best time to fly to George Bush Intcntl from Illinois with our price prediction graph.
ORD-IAH
STL-IAH
MDW-IAH
EVV-IAH
BMI-IAH
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Illinois to Houston George Bush Intcntl Airport
USIL-IAH
ORD-IAH
STL-IAH
MDW-IAH
EVV-IAH
What is the cheapest month to book a flight from Illinois to Houston George Bush Intcntl Airport?
Currently, August is the cheapest month in which you can book a flight from Illinois to Houston George Bush Intcntl Airport (average of $28). Flying from Illinois to Houston George Bush Intcntl Airport in May is currently the most expensive (average of $672). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from IL to IAH?
Find hourly flight availability from Illinois to George Bush Intcntl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 1, 2026.
One of the essential ways to save on airfare from Illinois to Houston George Bush Intcntl Airport is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 23% on airfare.
Weekly flight availability from Illinois to Houston George Bush Intcntl Airport
Explore weekly flight availability from Illinois to George Bush Intcntl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 1, 2026.
The most flights from USIL to IAH are scheduled on a Wednesday (75 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (28 on average).
How much does it cost to fly round-trip from Illinois to Houston George Bush Intcntl Airport?
How far ahead should I book a flight from Illinois to Houston George Bush Intcntl Airport?
The price you pay for your flight from Illinois to Houston George Bush Intcntl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 69 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest day to fly from Illinois to Houston George Bush Intcntl Airport?
Use this chart to determine the cheapest time to fly round-trip from Illinois to George Bush Intcntl. Price data was last updated on June 27, 2026.
Travelers seeking maximum savings on their Illinois to Houston George Bush Intcntl Airport flight should consider departing on Tuesday mornings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Related info for your journey
Find useful and relevant information for your journey from Illinois to George Bush Intcntl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Houston George Bush Intcntl Airport?
Book flights to Houston George Bush Intcntl Airport if you plan to visit one of these locationsKaty
Spring
The Woodlands
Conroe
Jersey Village
Humble
Tomball
Cypress
Montgomery
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Other flights to George Bush Intcntl
Explore flights to George Bush Intcntl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 1, 2026.
Illinois and George Bush Intcntl flights
Browse other Illinois and George Bush Intcntl flight options. Last updated on July 1, 2026.
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Illinois to George Bush Intcntl flights
Consider these flights traveling from Illinois to George Bush Intcntl.
Top 4 airlines flying from Illinois to George Bush Intcntl
Discover the top 4 airlines that operate flights from Illinois to George Bush Intcntl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$57 | Average$170 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$163 | Average$342 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$177 | Average$338 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$202 | Average$265 | FlexibilityNo cancel fee | On-timeN/A |