$63+ 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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IAH
Jun 9 — Jun 161
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 May 10, 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 May 10, 2026.
This Super.com deal was found by Cheapflights users on 5/9. 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 7/295:46 pm
ORD
- IAH
Nonstop3h 17m
Frontier
Wed 8/199:52 pm
IAH
- ORD
Nonstop2h 50m
Frontier
Deal found 5/9![Frontier logo]()
$116
This deal was found by Cheapflights users on 5/6. 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 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
Mon 10/121:35 pm
IAH
- ORD
1 stop6h 53m
Frontier
Deal found 5/6![Frontier logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 7/105:46 pm
ORD
- IAH
Nonstop3h 17m
Frontier
Wed 7/159:58 pm
IAH
- ORD
Nonstop2h 51m
Frontier
Deal found 5/5![Frontier logo]()
$121
This Expedia deal was found by Cheapflights users on 5/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/141:50 pm
ORD
- IAH
1 stop8h 49m
Frontier
Tue 7/219:58 pm
IAH
- ORD
Nonstop2h 51m
Frontier
Deal found 5/9![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 6/95:29 pm
ORD
- IAH
Nonstop3h 23m
Frontier
Tue 6/1611:12 am
IAH
- ORD
1 stop8h 38m
Frontier
Deal found 5/6![Frontier logo]()
$124
This Booking.com deal was found by Cheapflights users on 5/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/175:29 pm
ORD
- IAH
Nonstop3h 23m
Frontier
Mon 6/229:58 pm
IAH
- ORD
Nonstop2h 50m
Frontier
Deal found 5/8![Frontier logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 6/185:29 pm
ORD
- IAH
Nonstop3h 23m
Frontier
Tue 6/239:58 pm
IAH
- ORD
Nonstop2h 50m
Frontier
Deal found 5/7![Frontier logo]()
$126
This Frontier deal was found by Cheapflights users on 5/9. 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 6/14:05 pm
ORD
- IAH
Nonstop3h 12m
Frontier
Tue 6/98:02 pm
IAH
- ORD
1 stop12h 01m
Frontier
Deal found 5/9![Frontier logo]()
$129
This Trip.com deal was found by Cheapflights users on 5/9. 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.
Fri 5/294:05 pm
ORD
- IAH
Nonstop3h 12m
Frontier
Mon 6/18:12 pm
IAH
- ORD
Nonstop2h 49m
Frontier
Deal found 5/9![Frontier logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 6/25:11 pm
ORD
- IAH
1 stop15h 44m
Frontier
Tue 6/911:12 am
IAH
- ORD
1 stop8h 41m
Frontier
Deal found 5/5![Frontier logo]()
$132
This Super.com deal was found by Cheapflights users on 5/6. 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.
Fri 6/54:05 pm
ORD
- IAH
Nonstop3h 12m
Frontier
Tue 6/99:58 pm
IAH
- ORD
Nonstop2h 50m
Frontier
Deal found 5/6![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 5/2612:27 pm
MDW
- IAH
1 stop10h 23m
Frontier
Thu 5/288:02 pm
IAH
- MDW
1 stop15h 07m
Frontier
Deal found 5/5![Frontier logo]()
$173
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 May 10, 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 May 10, 2026.
This Delta deal was found by Cheapflights users on 5/10. 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 7/14:25 pm
MDW
- IAH
1 stop7h 31m
Delta
Wed 7/85:40 am
IAH
- MDW
1 stop6h 16m
Delta
Deal found 5/10![Delta logo]()
$197
This United Airlines deal was found by Cheapflights users on 5/7. 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 8/13:47 pm
MLI
- IAH
1 stop5h 49m
United Airlines
Sat 8/86:10 am
IAH
- MLI
1 stop6h 26m
United Airlines
Deal found 5/7![United Airlines logo]()
$243
This American Airlines deal was found by Cheapflights users on 5/5. 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 5/296:56 pm
MLI
- IAH
1 stop4h 56m
American Airlines
Mon 6/16:29 pm
IAH
- MLI
1 stop5h 26m
American Airlines
Deal found 5/5![American Airlines logo]()
$276
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 7/17:31 pm
SPI
- IAH
1 stop13h 16m
Multiple Airlines
Tue 7/78:02 pm
IAH
- SPI
2 stops22h 49m
Multiple Airlines
Deal found 5/6![Multiple Airlines logo]()
$336
This Delta deal was found by Cheapflights users on 5/9. 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 7/16:35 am
ORD
- IAH
1 stop7h 03m
Delta
Wed 7/82:38 pm
IAH
- ORD
1 stop5h 55m
Delta
Deal found 5/9![Delta logo]()
$197
This Delta deal was found by Cheapflights users on 5/7. 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 6/179:54 am
MDW
- IAH
1 stop7h 49m
Delta
Tue 6/236:30 am
IAH
- MDW
1 stop6h 39m
Delta
Deal found 5/7![Delta logo]()
$207
This Delta deal was found by Cheapflights users on 5/9. 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.
Mon 6/81:49 pm
MDW
- IAH
1 stop7h 48m
Delta
Tue 6/96:30 am
IAH
- MDW
1 stop6h 39m
Delta
Deal found 5/9![Delta logo]()
$208
This United Airlines deal was found by Cheapflights users on 5/5. 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 6/26:30 am
ORD
- IAH
Nonstop2h 49m
United Airlines
Sun 6/77:24 am
IAH
- ORD
Nonstop2h 56m
United Airlines
Deal found 5/5![United Airlines logo]()
$252
This Delta deal was found by Cheapflights users on 5/10. 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 6/115:22 pm
ORD
- IAH
1 stop5h 02m
Delta
Tue 7/76:37 pm
IAH
- ORD
1 stop5h 16m
Delta
Deal found 5/10![Delta logo]()
$208
This American Airlines deal was found by Cheapflights users on 5/10. 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 6/164:20 pm
PIA
- IAH
1 stop6h 08m
American Airlines
Sat 6/206:35 pm
IAH
- PIA
1 stop6h 03m
American Airlines
Deal found 5/10![American Airlines logo]()
$277
This United Airlines deal was found by Cheapflights users on 5/6. 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 6/16:30 pm
MLI
- IAH
1 stop6h 00m
United Airlines
Sat 6/65:04 am
IAH
- MLI
1 stop4h 55m
United Airlines
Deal found 5/6![United Airlines logo]()
$276
This American Airlines deal was found by Cheapflights users on 5/5. 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 6/912:24 pm
PIA
- IAH
1 stop7h 23m
American Airlines
Tue 6/165:01 am
IAH
- PIA
1 stop6h 53m
American Airlines
Deal found 5/5![American Airlines logo]()
$284
This Delta deal was found by Cheapflights users on 5/10. 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 7/161:18 pm
MDW
- IAH
1 stop5h 34m
Delta
Sat 7/188:05 am
IAH
- MDW
1 stop7h 32m
Delta
Deal found 5/10![Delta logo]()
$219
This United Airlines deal was found by Cheapflights users on 5/10. 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 6/88:07 pm
ORD
- IAH
Nonstop2h 57m
United Airlines
Thu 6/115:04 am
IAH
- ORD
Nonstop2h 53m
United Airlines
Deal found 5/10![United Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 5/10. 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 7/235:10 pm
MDW
- IAH
1 stop6h 49m
Delta
Mon 7/277:00 am
IAH
- MDW
1 stop4h 56m
Delta
Deal found 5/10![Delta logo]()
$219
This American Airlines deal was found by Cheapflights users on 5/6. 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 5/276:58 pm
PIA
- IAH
1 stop4h 54m
American Airlines
Mon 6/16:50 pm
IAH
- PIA
1 stop4h 48m
American Airlines
Deal found 5/6![American Airlines logo]()
$293
This Delta deal was found by Cheapflights users on 5/10. 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 7/167:05 am
ORD
- IAH
1 stop7h 25m
Delta
Sat 7/188:05 am
IAH
- ORD
1 stop6h 20m
Delta
Deal found 5/10![Delta logo]()
$219
This United Airlines deal was found by Cheapflights users on 5/9. 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 5/275:33 pm
PIA
- IAH
1 stop5h 31m
United Airlines
Wed 6/35:04 am
IAH
- PIA
1 stop5h 06m
United Airlines
Deal found 5/9![United Airlines logo]()
$298
This American Airlines deal was found by Cheapflights users on 5/7. 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 6/126:52 pm
MLI
- IAH
1 stop5h 07m
American Airlines
Mon 6/156:45 pm
IAH
- MLI
1 stop4h 45m
American Airlines
Deal found 5/7![American Airlines logo]()
$309
This Delta deal was found by Cheapflights users on 5/10. 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.
Mon 6/82:07 pm
ORD
- IAH
1 stop8h 17m
Delta
Thu 6/113:25 pm
IAH
- ORD
1 stop5h 06m
Delta
Deal found 5/10![Delta logo]()
$219
This United Airlines deal was found by Cheapflights users on 5/7. 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 6/53:47 pm
MLI
- IAH
1 stop5h 03m
United Airlines
Sun 6/75:04 am
IAH
- MLI
1 stop4h 55m
United Airlines
Deal found 5/7![United Airlines logo]()
$309
This Delta deal was found by Cheapflights users on 5/6. 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 5/282:00 pm
ORD
- IAH
1 stop8h 16m
Delta
Sat 6/65:25 pm
IAH
- ORD
1 stop5h 38m
Delta
Deal found 5/6![Delta logo]()
$219
This American Airlines deal was found by Cheapflights users on 5/6. 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 5/2312:06 pm
BMI
- IAH
2 stops10h 22m
American Airlines
Wed 5/273:06 pm
IAH
- BMI
2 stops8h 53m
American Airlines
Deal found 5/6![American Airlines logo]()
$335
This United Airlines deal was found by Cheapflights users on 5/7. 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.
Thu 6/45:45 pm
PIA
- IAH
1 stop6h 45m
United Airlines
Thu 6/115:04 am
IAH
- PIA
1 stop5h 06m
United Airlines
Deal found 5/7![United Airlines logo]()
$330
This American Airlines deal was found by Cheapflights users on 5/6. 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 6/86:02 pm
BMI
- IAH
1 stop5h 57m
American Airlines
Wed 6/176:35 pm
IAH
- BMI
1 stop6h 00m
American Airlines
Deal found 5/6![American Airlines logo]()
$354
This Delta deal was found by Cheapflights users on 5/5. 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.
Fri 7/36:30 am
ORD
- IAH
1 stop6h 45m
Delta
Tue 7/78:05 am
IAH
- ORD
1 stop6h 09m
Delta
Deal found 5/5![Delta logo]()
$249
This United Airlines deal was found by Cheapflights users on 5/6. 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 10/311:32 pm
CMI
- IAH
1 stop6h 08m
United Airlines
Wed 11/46:45 am
IAH
- CMI
1 stop6h 05m
United Airlines
Deal found 5/6![United Airlines logo]()
$350
This American Airlines deal was found by Cheapflights users on 5/9. 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 6/46:00 am
PIA
- IAH
2 stops8h 12m
American Airlines
Mon 6/85:30 pm
IAH
- PIA
1 stop6h 28m
American Airlines
Deal found 5/9![American Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 5/7. 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 7/15:30 am
ORD
- IAH
1 stop8h 08m
Delta
Fri 7/37:02 am
IAH
- ORD
1 stop7h 14m
Delta
Deal found 5/7![Delta logo]()
$254
This United Airlines deal was found by Cheapflights users on 5/7. 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.
Thu 6/48:35 am
STL
- IAH
Nonstop2h 17m
United Airlines
Thu 6/118:00 am
IAH
- STL
Nonstop2h 07m
United Airlines
Deal found 5/7![United Airlines logo]()
$353
Last-minute flights from Illinois to George Bush IntcntlDiscover last-minute flight deals from Illinois to George Bush Intcntl. Data last updated May 10, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to George Bush Intcntl. Data last updated May 10, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 5/2612:27 pm
MDW
- IAH
1 stop10h 23m
Frontier
Thu 5/288:02 pm
IAH
- MDW
1 stop15h 07m
Frontier
Deal found 5/5![Frontier logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 5/275:11 pm
ORD
- IAH
1 stop15h 39m
Frontier
Wed 6/35:45 am
IAH
- ORD
1 stop13h 44m
Frontier
Deal found 5/6![Frontier logo]()
$135
This Trip.com deal was found by Cheapflights users on 5/9. 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.
Fri 5/294:05 pm
ORD
- IAH
Nonstop3h 12m
Frontier
Mon 6/18:12 pm
IAH
- ORD
Nonstop2h 49m
Frontier
Deal found 5/9![Frontier logo]()
$130
This Frontier deal was found by Cheapflights users on 5/9. 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 6/14:05 pm
ORD
- IAH
Nonstop3h 12m
Frontier
Tue 6/98:02 pm
IAH
- ORD
1 stop12h 01m
Frontier
Deal found 5/9![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 6/25:11 pm
ORD
- IAH
1 stop15h 44m
Frontier
Tue 6/911:12 am
IAH
- ORD
1 stop8h 41m
Frontier
Deal found 5/5![Frontier logo]()
$132
This Expedia deal was found by Cheapflights users on 5/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/34:05 pm
ORD
- IAH
Nonstop3h 12m
Frontier
Wed 6/108:55 pm
IAH
- ORD
1 stop11h 08m
Frontier
Deal found 5/6![Frontier logo]()
$123
This Super.com deal was found by Cheapflights users on 5/6. 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.
Fri 6/54:05 pm
ORD
- IAH
Nonstop3h 12m
Frontier
Tue 6/99:58 pm
IAH
- ORD
Nonstop2h 50m
Frontier
Deal found 5/6![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 6/95:29 pm
ORD
- IAH
Nonstop3h 23m
Frontier
Tue 6/1611:12 am
IAH
- ORD
1 stop8h 38m
Frontier
Deal found 5/6![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 5/8. 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 6/912:27 pm
MDW
- IAH
1 stop21h 40m
Frontier
Tue 6/1611:12 am
IAH
- MDW
1 stop10h 59m
Frontier
Deal found 5/8![Frontier logo]()
$175
This Trip.com deal was found by Cheapflights users on 5/9. 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 6/175:29 pm
ORD
- IAH
Nonstop3h 23m
Frontier
Wed 6/249:58 pm
IAH
- ORD
Nonstop2h 50m
Frontier
Deal found 5/9![Frontier logo]()
$116
This Booking.com deal was found by Cheapflights users on 5/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/175:29 pm
ORD
- IAH
Nonstop3h 23m
Frontier
Mon 6/229:58 pm
IAH
- ORD
Nonstop2h 50m
Frontier
Deal found 5/8![Frontier logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 6/185:29 pm
ORD
- IAH
Nonstop3h 23m
Frontier
Tue 6/239:58 pm
IAH
- ORD
Nonstop2h 50m
Frontier
Deal found 5/7![Frontier logo]()
$126
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 May 10, 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 May 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/8. 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 6/85:27 pm
STL
- IAH
1 stop5h 23m
Frontier
Deal found 5/8![Frontier logo]()
$63
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 7/64:52 pm
STL
- IAH
1 stop14h 28m
Frontier
Deal found 5/5![Frontier logo]()
$64
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 5/265:11 pm
ORD
- IAH
1 stop25h 38m
Frontier
Deal found 5/5![Frontier logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 6/26:33 pm
STL
- IAH
1 stop13h 01m
Frontier
Deal found 5/6![Frontier logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 5/5. 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 5/284:05 pm
ORD
- IAH
Nonstop3h 12m
Frontier
Deal found 5/5![Frontier logo]()
$67
This Super.com deal was found by Cheapflights users on 5/9. 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.
Tue 8/45:46 pm
ORD
- IAH
Nonstop3h 17m
Frontier
Deal found 5/9![Frontier logo]()
$68
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 6/3012:27 pm
MDW
- IAH
1 stop18h 56m
Frontier
Deal found 5/6![Frontier logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 6/26:00 am
MDW
- IAH
1 stop16h 50m
Frontier
Deal found 5/6![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 6/21:29 pm
ORD
- IAH
1 stop9h 21m
Frontier
Deal found 5/6![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 5/6. 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 5/275:11 pm
ORD
- IAH
1 stop15h 39m
Frontier
Deal found 5/6![Frontier logo]()
$71
This Kiwi.com deal was found by Cheapflights users on 5/9. 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 7/165:46 pm
ORD
- IAH
Nonstop3h 17m
Frontier
Deal found 5/9![Frontier logo]()
$74
This Frontier deal was found by Cheapflights users on 5/6. 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.
Thu 7/25:29 pm
ORD
- IAH
Nonstop3h 23m
Frontier
Deal found 5/6![Frontier logo]()
$75
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 May 10, 2026.
Round-trip from | $116 (Super.com) |
|---|---|
One-way from | $63 (Kiwi.com) |
Popular in | March |
Cheapest in | September |
Average price | $289 |
Good round-trip deal | $204 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 May 10, 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
Wed 7/1
4:25 pm-11:56 pm
1 stop7h 31m
Houston George Bush Intcntl
Wed 7/8
5:40 am-11:56 am
1 stop6h 16m
$197
ChicagoHouston
ORD - IAH
ORDIAH
Chicago O'Hare Intl
Wed 7/1
6:35 am-1:38 pm
1 stop7h 03m
Houston George Bush Intcntl
Wed 7/8
2:38 pm-8:33 pm
1 stop5h 55m
$197
ChicagoHouston
MDW - IAH
MDWIAH
Chicago Midway
Wed 6/17
9:54 am-5:43 pm
1 stop7h 49m
Houston George Bush Intcntl
Tue 6/23
6:30 am-1:09 pm
1 stop6h 39m
$207
ChicagoHouston
MDW - IAH
MDWIAH
Chicago Midway
Mon 6/8
1:49 pm-9:37 pm
1 stop7h 48m
Houston George Bush Intcntl
Tue 6/9
6:30 am-1:09 pm
1 stop6h 39m
$208
ChicagoHouston
ORD - IAH
ORDIAH
Chicago O'Hare Intl
Thu 6/11
5:22 pm-10:24 pm
1 stop5h 02m
Houston George Bush Intcntl
Tue 7/7
6:37 pm-11:53 pm
1 stop5h 16m
$208
ChicagoHouston
MDW - IAH
MDWIAH
Chicago Midway
Thu 7/16
1:18 pm-6:52 pm
1 stop5h 34m
Houston George Bush Intcntl
Sat 7/18
8:05 am-3:37 pm
1 stop7h 32m
$219
ChicagoHouston
MDW - IAH
MDWIAH
Chicago Midway
Thu 7/23
5:10 pm-11:59 pm
1 stop6h 49m
Houston George Bush Intcntl
Mon 7/27
7:00 am-11:56 am
1 stop4h 56m
$219
ChicagoHouston
ORD - IAH
ORDIAH
Chicago O'Hare Intl
Thu 7/16
7:05 am-2:30 pm
1 stop7h 25m
Houston George Bush Intcntl
Sat 7/18
8:05 am-2:25 pm
1 stop6h 20m
$219
ChicagoHouston
ORD - IAH
ORDIAH
Chicago O'Hare Intl
Mon 6/8
2:07 pm-10:24 pm
1 stop8h 17m
Houston George Bush Intcntl
Thu 6/11
3:25 pm-8:31 pm
1 stop5h 06m
$219
ChicagoHouston
ORD - IAH
ORDIAH
Chicago O'Hare Intl
Thu 5/28
2:00 pm-10:16 pm
1 stop8h 16m
Houston George Bush Intcntl
Sat 6/6
5:25 pm-11:03 pm
1 stop5h 38m
$219
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.
MDW-IAH
MLI-IAH
SPI-IAH
ORD-IAH
PIA-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
MDW-IAH
MLI-IAH
SPI-IAH
ORD-IAH
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 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 March is currently the most expensive (average of $596). 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 May 10, 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 morning tend to be the most expensive. A flight at noon could potentially save you up to 10% on airfare.
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 May 9, 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. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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 May 10, 2026.
The most flights from USIL to IAH are scheduled on a Friday (73 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (63 on average).
How much does it cost to fly round-trip from Illinois to Houston George Bush Intcntl Airport?
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
The Woodlands
Spring
Jersey Village
Humble
Tomball
Conroe
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 May 10, 2026.
Illinois and George Bush Intcntl flights
Browse other Illinois and George Bush Intcntl flight options. Last updated on May 10, 2026.
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Illinois to George Bush Intcntl flights
Consider these flights traveling from Illinois to George Bush Intcntl.
Top 5 airlines flying from Illinois to George Bush Intcntl
Discover the top 5 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 May 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$57 | Average$171 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$70 | Average$148 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$163 | Average$343 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$173 | Average$331 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$199 | Average$275 | FlexibilityNo cancel fee | On-timeN/A |