$61+ 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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IAH
Sep 24 — Oct 11
Round-trip
1 adult, Economy
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Find cheap flights from Illinois to George Bush Intcntl with Cheapflights
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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 August 25, 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 August 25, 2026.
This Trip.com deal was found by Cheapflights users on 8/23. 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.
Tue 10/67:25 am -
Nonstop3h 05m
Tue 10/1311:36 am -
Nonstop2h 49m
Deal found 8/23![Frontier logo]()
$124
This Trip.com deal was found by Cheapflights users on 8/22. 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.
Thu 10/291:06 pm -
Nonstop3h 05m
Mon 11/25:06 pm -
Nonstop2h 53m
Deal found 8/22![Frontier logo]()
$125
This Trip.com deal was found by Cheapflights users on 8/25. 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.
Tue 9/227:25 am -
Nonstop3h 05m
Tue 9/2911:25 am -
Nonstop2h 52m
Deal found 8/25![Frontier logo]()
$126
This Super.com deal was found by Cheapflights users on 8/21. 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.
Thu 9/102:46 pm -
Nonstop3h 09m
Sat 9/1211:25 am -
Nonstop2h 52m
Deal found 8/21![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 8/24. 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 9/127:25 am -
Nonstop3h 05m
Wed 9/1611:25 am -
Nonstop2h 52m
Deal found 8/24![Frontier logo]()
$129
This Super.com deal was found by Cheapflights users on 8/25. 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 9/252:46 pm -
Nonstop3h 09m
Mon 9/286:50 pm -
Nonstop2h 49m
Deal found 8/25![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 8/21. 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 9/172:46 pm -
Nonstop3h 09m
Sat 9/1911:25 am -
Nonstop2h 52m
Deal found 8/21![Frontier logo]()
$132
This Expedia deal was found by Cheapflights users on 8/20. 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.
Fri 11/131:06 pm -
Nonstop3h 05m
Sat 11/146:16 pm -
Nonstop2h 54m
Deal found 8/20![Frontier logo]()
$133
This CheapOair deal was found by Cheapflights users on 8/24. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/301:06 pm -
Nonstop3h 05m
Thu 11/55:06 pm -
Nonstop2h 53m
Deal found 8/24![Frontier logo]()
$134
This Super.com deal was found by Cheapflights users on 8/23. 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.
Thu 9/172:46 pm -
Nonstop3h 09m
Mon 9/216:50 pm -
Nonstop2h 49m
Deal found 8/23![Frontier logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 8/21. 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 11/72:11 pm -
Nonstop3h 10m
Mon 11/95:06 pm -
Nonstop2h 53m
Deal found 8/21![Frontier logo]()
$138
This CheapOair deal was found by Cheapflights users on 8/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/142:29 pm -
1 stop8h 01m
Tue 9/157:00 am -
1 stop28h 32m
Deal found 8/23![Frontier logo]()
$188
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 August 25, 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 August 25, 2026.
This United Airlines deal was found by Cheapflights users on 8/21. 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 11/36:15 am -
Nonstop2h 20m
Tue 11/108:20 pm -
Nonstop2h 06m
Deal found 8/21![United Airlines logo]()
$217
This Delta deal was found by Cheapflights users on 8/20. 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 9/156:05 am -
1 stop7h 25m
Tue 9/229:44 am -
1 stop6h 31m
Deal found 8/20![Delta logo]()
$229
This American Airlines deal was found by Cheapflights users on 8/23. 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 9/221:23 pm -
1 stop4h 42m
Tue 9/299:00 am -
1 stop5h 11m
Deal found 8/23![American Airlines logo]()
$280
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 9/268:33 pm -
2 stops34h 44m
Sat 10/312:21 pm -
1 stop7h 32m
Deal found 8/25![Multiple Airlines logo]()
$393
This Delta deal was found by Cheapflights users on 8/22. 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 10/16:05 am -
1 stop7h 25m
Mon 10/55:30 am -
1 stop7h 09m
Deal found 8/22![Delta logo]()
$229
This Delta deal was found by Cheapflights users on 8/23. 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 9/262:00 pm -
1 stop7h 30m
Tue 9/295:40 am -
2 stops6h 59m
Deal found 8/23![Delta logo]()
$234
This United Airlines deal was found by Cheapflights users on 8/24. 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.
Sun 10/256:15 am -
Nonstop2h 20m
Tue 10/278:20 pm -
Nonstop2h 06m
Deal found 8/24![United Airlines logo]()
$282
This Delta deal was found by Cheapflights users on 8/20. 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 9/101:55 pm -
2 stops8h 38m
Sat 9/1212:41 pm -
1 stop6h 15m
Deal found 8/20![Delta logo]()
$234
This American Airlines deal was found by Cheapflights users on 8/23. 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 10/165:30 pm -
1 stop7h 06m
Sat 10/246:00 am -
1 stop6h 05m
Deal found 8/23![American Airlines logo]()
$303
This United Airlines deal was found by Cheapflights users on 8/23. 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 10/33:12 pm -
Nonstop2h 13m
Sun 10/48:00 am -
Nonstop2h 10m
Deal found 8/23![United Airlines logo]()
$282
This Delta deal was found by Cheapflights users on 8/21. 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 10/141:55 pm -
2 stops10h 00m
Sat 10/1711:34 am -
2 stops12h 23m
Deal found 8/21![Delta logo]()
$239
This American Airlines deal was found by Cheapflights users on 8/23. 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 9/94:43 pm -
1 stop5h 47m
Mon 9/144:57 pm -
1 stop7h 11m
Deal found 8/23![American Airlines logo]()
$303
This United Airlines deal was found by Cheapflights users on 8/24. 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 9/285:30 am -
Nonstop2h 49m
Thu 10/15:00 am -
Nonstop2h 55m
Deal found 8/24![United Airlines logo]()
$284
This Delta deal was found by Cheapflights users on 8/21. 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 11/131:22 pm -
1 stop5h 18m
Mon 11/164:28 pm -
1 stop6h 28m
Deal found 8/21![Delta logo]()
$242
This American Airlines deal was found by Cheapflights users on 8/22. 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 9/511:43 am -
2 stops8h 57m
Tue 9/84:21 pm -
2 stops7h 47m
Deal found 8/22![American Airlines logo]()
$311
This United Airlines deal was found by Cheapflights users on 8/21. 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 10/146:15 am -
Nonstop2h 12m
Tue 10/2011:58 am -
Nonstop2h 12m
Deal found 8/21![United Airlines logo]()
$297
This Delta deal was found by Cheapflights users on 8/25. 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 10/301:55 pm -
2 stops10h 00m
Mon 11/25:35 am -
2 stops7h 24m
Deal found 8/25![Delta logo]()
$252
This American Airlines deal was found by Cheapflights users on 8/20. 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 9/254:57 pm -
1 stop7h 02m
Mon 9/285:00 am -
1 stop6h 38m
Deal found 8/20![American Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 8/22. 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 10/246:15 am -
Nonstop2h 12m
Mon 10/268:20 pm -
Nonstop2h 06m
Deal found 8/22![United Airlines logo]()
$297
This Delta deal was found by Cheapflights users on 8/20. 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 10/307:00 am -
2 stops10h 50m
Sat 11/711:34 am -
2 stops12h 23m
Deal found 8/20![Delta logo]()
$252
This American Airlines deal was found by Cheapflights users on 8/21. 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 9/175:02 am -
1 stop4h 38m
Mon 9/216:05 am -
1 stop6h 44m
Deal found 8/21![American Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 8/20. 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 10/223:12 pm -
Nonstop2h 13m
Mon 10/268:20 pm -
Nonstop2h 06m
Deal found 8/20![United Airlines logo]()
$297
This Delta deal was found by Cheapflights users on 8/20. 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 9/911:19 am -
2 stops10h 46m
Sat 9/125:25 pm -
1 stop5h 05m
Deal found 8/20![Delta logo]()
$258
This American Airlines deal was found by Cheapflights users on 8/24. 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 11/132:34 pm -
1 stop5h 35m
Sun 11/156:55 pm -
1 stop5h 04m
Deal found 8/24![American Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 8/24. 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 9/213:13 pm -
Nonstop2h 12m
Mon 9/288:15 pm -
Nonstop2h 15m
Deal found 8/24![United Airlines logo]()
$297
This Delta deal was found by Cheapflights users on 8/22. 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 11/76:00 am -
1 stop6h 04m
Wed 11/115:10 am -
2 stops11h 23m
Deal found 8/22![Delta logo]()
$258
This American Airlines deal was found by Cheapflights users on 8/23. 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 9/215:02 am -
1 stop4h 38m
Sat 9/2610:18 am -
1 stop5h 36m
Deal found 8/23![American Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 8/24. 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 9/238:35 am -
Nonstop2h 12m
Wed 9/308:15 pm -
Nonstop2h 15m
Deal found 8/24![United Airlines logo]()
$297
This American Airlines deal was found by Cheapflights users on 8/22. 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 9/511:41 am -
2 stops7h 03m
Tue 9/86:07 am -
1 stop5h 04m
Deal found 8/22![American Airlines logo]()
$322
This United Airlines deal was found by Cheapflights users on 8/22. 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 9/156:15 am -
Nonstop2h 17m
Tue 9/228:00 am -
Nonstop2h 10m
Deal found 8/22![United Airlines logo]()
$297
Last-minute flights from Illinois to George Bush IntcntlDiscover last-minute flight deals from Illinois to George Bush Intcntl. Data last updated August 25, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to George Bush Intcntl. Data last updated August 25, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 8/21. 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 9/97:25 am -
Nonstop3h 05m
Mon 9/146:50 pm -
Nonstop2h 49m
Deal found 8/21![Frontier logo]()
$141
This Super.com deal was found by Cheapflights users on 8/21. 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.
Thu 9/102:46 pm -
Nonstop3h 09m
Sat 9/1211:25 am -
Nonstop2h 52m
Deal found 8/21![Frontier logo]()
$128
This CheapOair deal was found by Cheapflights users on 8/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/112:46 pm -
Nonstop3h 09m
Tue 9/1511:25 am -
Nonstop2h 52m
Deal found 8/21![Frontier logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 8/24. 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 9/127:25 am -
Nonstop3h 05m
Wed 9/1611:25 am -
Nonstop2h 52m
Deal found 8/24![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 8/23. 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 9/127:11 am -
1 stop8h 06m
Mon 9/146:50 pm -
Nonstop2h 49m
Deal found 8/23![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 8/22. 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 9/1212:17 pm -
1 stop17h 45m
Mon 9/2810:09 pm -
2 stops39h 01m
Deal found 8/22![Frontier logo]()
$210
This CheapOair deal was found by Cheapflights users on 8/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/142:29 pm -
1 stop8h 01m
Tue 9/157:00 am -
1 stop28h 32m
Deal found 8/23![Frontier logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 8/21. 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 9/172:46 pm -
Nonstop3h 09m
Sat 9/1911:25 am -
Nonstop2h 52m
Deal found 8/21![Frontier logo]()
$132
This Super.com deal was found by Cheapflights users on 8/23. 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.
Thu 9/172:46 pm -
Nonstop3h 09m
Mon 9/216:50 pm -
Nonstop2h 49m
Deal found 8/23![Frontier logo]()
$135
This Trip.com deal was found by Cheapflights users on 8/25. 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.
Tue 9/227:25 am -
Nonstop3h 05m
Tue 9/2911:25 am -
Nonstop2h 52m
Deal found 8/25![Frontier logo]()
$126
This Super.com deal was found by Cheapflights users on 8/25. 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 9/252:46 pm -
Nonstop3h 09m
Mon 9/286:50 pm -
Nonstop2h 49m
Deal found 8/25![Frontier logo]()
$131
This CheapOair deal was found by Cheapflights users on 8/24. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2912:17 pm -
1 stop30h 08m
Mon 10/126:05 am -
1 stop11h 35m
Deal found 8/24![Frontier logo]()
$207
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 August 25, 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 August 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/24. 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 9/232:29 pm -
1 stop8h 01m
Deal found 8/24![Frontier logo]()
$61
This Kiwi.com deal was found by Cheapflights users on 8/21. 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 10/266:35 pm -
1 stop27h 56m
Deal found 8/21![Frontier logo]()
$67
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 9/212:29 pm -
1 stop16h 48m
Deal found 8/25![Frontier logo]()
$68
This Kiwi.com deal was found by Cheapflights users on 8/22. 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 10/216:35 pm -
1 stop16h 47m
Deal found 8/22![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 8/21. 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 10/146:35 pm -
1 stop12h 44m
Deal found 8/21![Frontier logo]()
$73
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 10/236:35 pm -
1 stop27h 34m
Deal found 8/20![Frontier logo]()
$74
This Frontier deal was found by Cheapflights users on 8/23. 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 -
Nonstop3h 09m
Deal found 8/23![Frontier logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 8/21. 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 9/167:11 am -
1 stop8h 06m
Deal found 8/21![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 8/21. 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 9/177:11 am -
1 stop8h 06m
Deal found 8/21![Frontier logo]()
$91
This Super.com deal was found by Cheapflights users on 8/24. 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.
Sat 9/267:32 pm -
1 stop10h 30m
Deal found 8/24![Frontier logo]()
$93
This Super.com deal was found by Cheapflights users on 8/25. 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 10/286:16 am -
1 stop8h 34m
Deal found 8/25![Frontier logo]()
$94
This Frontier deal was found by Cheapflights users on 8/22. 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 10/246:15 am -
1 stop5h 42m
Deal found 8/22![Frontier logo]()
$95
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 August 25, 2026.
Round-trip from | $124 (Trip.com) |
|---|---|
One-way from | $61 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $250 |
Good round-trip deal | $247 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 7,457,451 searches. Data last updated August 25, 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
St. LouisHouston
STL Lambert-St Louis - IAH Houston George Bush Intcntl
STLIAH
Lambert-St Louis
Tue 11/3
6:15 am-8:35 am
Nonstop2h 20m
Houston George Bush Intcntl
Tue 11/10
8:20 pm-10:26 pm
Nonstop2h 06m
$217
ChicagoHouston
MDW Chicago Midway - IAH Houston George Bush Intcntl
MDWIAH
Chicago Midway
Tue 9/15
6:05 am-1:30 pm
1 stop7h 25m
Houston George Bush Intcntl
Tue 9/22
9:44 am-4:15 pm
1 stop6h 31m
$229
ChicagoHouston
MDW Chicago Midway - IAH Houston George Bush Intcntl
MDWIAH
Chicago Midway
Thu 10/1
6:05 am-1:30 pm
1 stop7h 25m
Houston George Bush Intcntl
Mon 10/5
5:30 am-12:39 pm
1 stop7h 09m
$229
ChicagoHouston
MDW Chicago Midway - IAH Houston George Bush Intcntl
MDWIAH
Chicago Midway
Sat 9/26
2:00 pm-9:30 pm
1 stop7h 30m
Houston George Bush Intcntl
Tue 9/29
5:40 am-12:39 pm
2 stops6h 59m
$234
ChicagoHouston
ORD Chicago O'Hare Intl - IAH Houston George Bush Intcntl
ORDIAH
Chicago O'Hare Intl
Thu 9/10
1:55 pm-10:33 pm
2 stops8h 38m
Houston George Bush Intcntl
Sat 9/12
12:41 pm-6:56 pm
1 stop6h 15m
$234
ChicagoHouston
ORD Chicago O'Hare Intl - IAH Houston George Bush Intcntl
ORDIAH
Chicago O'Hare Intl
Wed 10/14
1:55 pm-11:55 pm
2 stops10h 00m
Houston George Bush Intcntl
Sat 10/17
11:34 am-11:57 pm
2 stops12h 23m
$239
ChicagoHouston
MDW Chicago Midway - IAH Houston George Bush Intcntl
MDWIAH
Chicago Midway
Fri 11/13
1:22 pm-6:40 pm
1 stop5h 18m
Houston George Bush Intcntl
Mon 11/16
4:28 pm-10:56 pm
1 stop6h 28m
$242
ChicagoHouston
ORD Chicago O'Hare Intl - IAH Houston George Bush Intcntl
ORDIAH
Chicago O'Hare Intl
Fri 10/30
1:55 pm-11:55 pm
2 stops10h 00m
Houston George Bush Intcntl
Mon 11/2
5:35 am-12:59 pm
2 stops7h 24m
$252
ChicagoHouston
ORD Chicago O'Hare Intl - IAH Houston George Bush Intcntl
ORDIAH
Chicago O'Hare Intl
Fri 10/30
7:00 am-5:50 pm
2 stops10h 50m
Houston George Bush Intcntl
Sat 11/7
11:34 am-11:57 pm
2 stops12h 23m
$252
MolineHouston
MLI Moline Quad-City - IAH Houston George Bush Intcntl
MLIIAH
Moline Quad-City
Wed 9/9
11:19 am-10:05 pm
2 stops10h 46m
Houston George Bush Intcntl
Sat 9/12
5:25 pm-10:30 pm
1 stop5h 05m
$258
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.
STL-IAH
ORD-IAH
MDW-IAH
CMI-IAH
SPI-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
STL-IAH
ORD-IAH
MDW-IAH
CMI-IAH
What is the cheapest month to book a flight from Illinois to Houston George Bush Intcntl Airport?
Currently, October is the cheapest month in which you can book a flight from Illinois to Houston George Bush Intcntl Airport (average of $217). Flying from Illinois to Houston George Bush Intcntl Airport in June is currently the most expensive (average of $367). 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 August 25, 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 in the afternoon could potentially save you up to 24% 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 August 25, 2026.
The most flights from USIL to IAH are scheduled on a Monday (66 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (41 on average).
How much does it cost to fly round-trip from Illinois to Houston George Bush Intcntl Airport?
Airfare is below average for this route at the moment.
Illinois to Houston George Bush Intcntl Airport flights typically cost between $153 and $350 in October.The cheapest round-trip price found within the last 5 days was $124 on Frontier (Oct 6-Oct 13).
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 33 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 August 22, 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.
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
Conroe
The Woodlands
Spring
Humble
Jersey Village
Tomball
Montgomery
Cypress
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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 August 25, 2026.
Illinois and George Bush Intcntl flights
Browse other Illinois and George Bush Intcntl flight options. Last updated on August 25, 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 7,457,451 searches. Data last updated August 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$59 | Average$168 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$165 | Average$358 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$179 | Average$358 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$202 | Average$275 | FlexibilityNo cancel fee | On-timeN/A |