$86+ Cheap flights from Illinois to Greenville (GSP)
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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — GSP
Sep 17 — Sep 241
Round-trip
1 adult, Economy
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Find cheap flights from Illinois to Greenville with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Illinois to GreenvilleExplore the most affordable flight options available from Illinois to Greenville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2026.
Explore the most affordable flight options available from Illinois to Greenville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 9/227:11 am -
1 stop9h 03m
Mon 9/287:03 pm -
2 stops21h 17m
Deal found 8/17![Multiple Airlines logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 9/227:11 am -
1 stop9h 03m
Fri 9/252:18 pm -
1 stop26h 02m
Deal found 8/17![Multiple Airlines logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 9/247:11 am -
1 stop29h 17m
Mon 9/287:03 pm -
2 stops21h 17m
Deal found 8/16![Multiple Airlines logo]()
$197
This Southwest deal was found by Cheapflights users on 8/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:40 am -
1 stop3h 45m
Thu 9/246:55 pm -
1 stop4h 30m
Deal found 8/13![Southwest logo]()
$200
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 10/297:50 am -
1 stop23h 20m
Mon 11/28:32 pm -
1 stop28h 18m
Deal found 8/17![Multiple Airlines logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 10/248:04 am -
2 stops24h 23m
Thu 10/296:08 pm -
1 stop22h 16m
Deal found 8/13![Multiple Airlines logo]()
$204
This Southwest deal was found by Cheapflights users on 8/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2410:25 am -
2 stops5h 35m
Thu 10/296:25 am -
2 stops9h 30m
Deal found 8/13![Southwest logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 9/117:11 am -
2 stops9h 12m
Mon 9/1412:11 pm -
1 stop28h 09m
Deal found 8/17![Multiple Airlines logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 9/163:50 pm -
1 stop26h 59m
Mon 9/217:03 pm -
2 stops21h 17m
Deal found 8/16![Multiple Airlines logo]()
$214
This Southwest deal was found by Cheapflights users on 8/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:35 am -
1 stop5h 05m
Fri 9/116:55 pm -
1 stop4h 15m
Deal found 8/13![Southwest logo]()
$238
This American Airlines deal was found by Cheapflights users on 8/13. 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 9/101:54 pm -
1 stop4h 05m
Thu 9/176:23 pm -
1 stop7h 04m
Deal found 8/13![American Airlines logo]()
$255
This Southwest deal was found by Cheapflights users on 8/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:45 am -
1 stop5h 50m
Thu 10/88:40 pm -
1 stop3h 55m
Deal found 8/17![Southwest logo]()
$259
Best flights from Illinois to GreenvilleDiscover carefully curated flight deals from Illinois to Greenville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 18, 2026.
Discover carefully curated flight deals from Illinois to Greenville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 18, 2026.
This Southwest deal was found by Cheapflights users on 8/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/34:00 pm -
1 stop3h 35m
Mon 10/58:40 pm -
1 stop4h 15m
Deal found 8/13![Southwest logo]()
$200
This American Airlines deal was found by Cheapflights users on 8/12. 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 10/16:49 pm -
Nonstop2h 05m
Sun 10/47:24 am -
Nonstop2h 26m
Deal found 8/12![American Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 8/16. 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 10/95:35 pm -
1 stop4h 16m
Mon 10/127:14 pm -
1 stop5h 40m
Deal found 8/16![Delta logo]()
$297
This United Airlines deal was found by Cheapflights users on 8/14. 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 10/36:15 am -
2 stops11h 45m
Tue 10/136:20 am -
1 stop4h 46m
Deal found 8/14![United Airlines logo]()
$324
This Southwest deal was found by Cheapflights users on 8/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/56:45 am -
1 stop5h 50m
Thu 10/88:40 pm -
1 stop3h 55m
Deal found 8/17![Southwest logo]()
$259
This Southwest deal was found by Cheapflights users on 8/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/231:40 pm -
1 stop4h 50m
Thu 9/246:55 pm -
1 stop4h 15m
Deal found 8/14![Southwest logo]()
$259
This Delta deal was found by Cheapflights users on 8/16. 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 12/116:00 am -
1 stop4h 07m
Tue 12/157:00 am -
1 stop4h 33m
Deal found 8/16![Delta logo]()
$299
This American Airlines deal was found by Cheapflights users on 8/14. 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 10/305:02 pm -
1 stop4h 55m
Mon 11/27:00 am -
1 stop4h 55m
Deal found 8/14![American Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 8/14. 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 10/196:04 am -
1 stop3h 56m
Sat 10/2412:54 pm -
1 stop6h 06m
Deal found 8/14![Delta logo]()
$299
This United Airlines deal was found by Cheapflights users on 8/14. 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 9/25:45 am -
1 stop6h 47m
Tue 9/86:10 pm -
1 stop6h 03m
Deal found 8/14![United Airlines logo]()
$334
This American Airlines deal was found by Cheapflights users on 8/14. 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 10/36:00 am -
2 stops9h 28m
Thu 10/158:31 pm -
1 stop4h 25m
Deal found 8/14![American Airlines logo]()
$324
This Delta deal was found by Cheapflights users on 8/16. 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 10/231:55 pm -
1 stop6h 32m
Sun 10/255:40 am -
1 stop3h 59m
Deal found 8/16![Delta logo]()
$299
This Southwest deal was found by Cheapflights users on 8/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/302:00 pm -
2 stops5h 55m
Wed 10/71:25 pm -
2 stops9h 30m
Deal found 8/16![Southwest logo]()
$309
This American Airlines deal was found by Cheapflights users on 8/17. 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 11/2611:25 am -
2 stops7h 29m
Wed 12/26:42 pm -
1 stop6h 25m
Deal found 8/17![American Airlines logo]()
$324
This United Airlines deal was found by Cheapflights users on 8/13. 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 10/21:29 pm -
1 stop6h 48m
Sun 10/46:20 am -
1 stop5h 28m
Deal found 8/13![United Airlines logo]()
$360
This Delta deal was found by Cheapflights users on 8/16. 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 10/38:05 am -
1 stop3h 45m
Wed 10/711:05 am -
1 stop6h 27m
Deal found 8/16![Delta logo]()
$299
This Southwest deal was found by Cheapflights users on 8/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/84:30 pm -
1 stop5h 25m
Thu 11/128:50 pm -
1 stop4h 05m
Deal found 8/14![Southwest logo]()
$328
This United Airlines deal was found by Cheapflights users on 8/16. 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 9/112:05 pm -
Nonstop2h 09m
Mon 9/147:47 pm -
1 stop4h 53m
Deal found 8/16![United Airlines logo]()
$374
This Delta deal was found by Cheapflights users on 8/14. 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 9/26:05 am -
1 stop3h 35m
Sun 9/610:31 am -
1 stop6h 13m
Deal found 8/14![Delta logo]()
$319
This American Airlines deal was found by Cheapflights users on 8/12. 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.
Sun 10/42:56 pm -
Nonstop1h 57m
Mon 10/56:43 pm -
Nonstop2h 30m
Deal found 8/12![American Airlines logo]()
$357
This Southwest deal was found by Cheapflights users on 8/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1111:50 am -
2 stops6h 10m
Mon 10/128:40 pm -
1 stop4h 15m
Deal found 8/13![Southwest logo]()
$330
This American Airlines deal was found by Cheapflights users on 8/13. 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 8/2811:43 am -
2 stops8h 44m
Tue 9/110:12 am -
2 stops8h 59m
Deal found 8/13![American Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 8/13. 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 12/53:30 pm -
1 stop4h 41m
Wed 12/95:41 pm -
1 stop6h 07m
Deal found 8/13![United Airlines logo]()
$399
This Southwest deal was found by Cheapflights users on 8/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1012:50 pm -
1 stop6h 00m
Sun 12/138:15 am -
1 stop6h 25m
Deal found 8/17![Southwest logo]()
$338
This United Airlines deal was found by Cheapflights users on 8/16. 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 1/61:20 pm -
1 stop6h 51m
Sat 1/95:41 pm -
1 stop6h 07m
Deal found 8/16![United Airlines logo]()
$399
This American Airlines deal was found by Cheapflights users on 8/12. 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 10/268:09 am -
Nonstop1h 59m
Fri 10/3011:38 am -
Nonstop2h 16m
Deal found 8/12![American Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 8/12. 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 10/263:40 pm -
1 stop6h 11m
Fri 10/307:00 am -
1 stop6h 13m
Deal found 8/12![Delta logo]()
$373
This Southwest deal was found by Cheapflights users on 8/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/211:05 am -
2 stops7h 55m
Sun 10/47:35 pm -
1 stop5h 30m
Deal found 8/13![Southwest logo]()
$353
This United Airlines deal was found by Cheapflights users on 8/15. 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 1/52:26 pm -
1 stop5h 45m
Sat 1/96:00 am -
2 stops8h 51m
Deal found 8/15![United Airlines logo]()
$404
This American Airlines deal was found by Cheapflights users on 8/13. 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 8/286:08 am -
1 stop3h 52m
Tue 9/111:31 am -
1 stop3h 50m
Deal found 8/13![American Airlines logo]()
$368
Last-minute flights from Illinois to GreenvilleDiscover last-minute flight deals from Illinois to Greenville. Data last updated August 18, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Greenville. Data last updated August 18, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 8/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:35 am -
1 stop5h 05m
Fri 9/116:55 pm -
1 stop4h 15m
Deal found 8/13![Southwest logo]()
$238
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 9/107:11 am -
1 stop29h 17m
Mon 9/147:03 pm -
2 stops21h 17m
Deal found 8/14![Multiple Airlines logo]()
$218
This American Airlines deal was found by Cheapflights users on 8/13. 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 9/101:54 pm -
1 stop4h 05m
Thu 9/176:23 pm -
1 stop7h 04m
Deal found 8/13![American Airlines logo]()
$255
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 9/117:11 am -
2 stops9h 12m
Mon 9/1412:11 pm -
1 stop28h 09m
Deal found 8/17![Multiple Airlines logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 9/163:50 pm -
1 stop26h 59m
Mon 9/217:03 pm -
2 stops21h 17m
Deal found 8/16![Multiple Airlines logo]()
$214
This American Airlines deal was found by Cheapflights users on 8/17. 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 9/175:00 am -
1 stop5h 03m
Thu 9/246:23 pm -
1 stop7h 04m
Deal found 8/17![American Airlines logo]()
$259
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 9/227:11 am -
1 stop9h 03m
Mon 9/287:03 pm -
2 stops21h 17m
Deal found 8/17![Multiple Airlines logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 9/227:11 am -
1 stop9h 03m
Fri 9/252:18 pm -
1 stop26h 02m
Deal found 8/17![Multiple Airlines logo]()
$196
This Southwest deal was found by Cheapflights users on 8/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:40 am -
1 stop3h 45m
Thu 9/246:55 pm -
1 stop4h 30m
Deal found 8/13![Southwest logo]()
$200
This Southwest deal was found by Cheapflights users on 8/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:00 am -
2 stops7h 45m
Thu 9/246:55 pm -
1 stop4h 15m
Deal found 8/14![Southwest logo]()
$284
This Kiwi.com deal was found by Cheapflights users on 8/16. 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 9/247:11 am -
1 stop29h 17m
Mon 9/287:03 pm -
2 stops21h 17m
Deal found 8/16![Multiple Airlines logo]()
$197
This Southwest deal was found by Cheapflights users on 8/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/283:20 pm -
1 stop5h 20m
Mon 10/58:40 pm -
1 stop4h 15m
Deal found 8/14![Southwest logo]()
$299
One-way flights from Illinois to GreenvilleSearch for one-way flight options from Illinois to Greenville. Find affordable one-way fares based on user searches. Data last updated August 18, 2026.
Search for one-way flight options from Illinois to Greenville. Find affordable one-way fares based on user searches. Data last updated August 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 9/28:05 am -
1 stop22h 52m
Deal found 8/12![Multiple Airlines logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 9/187:11 am -
1 stop10h 19m
Deal found 8/12![Multiple Airlines logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 9/107:11 am -
1 stop29h 17m
Deal found 8/14![Multiple Airlines logo]()
$91
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 9/147:11 am -
2 stops10h 12m
Deal found 8/13![Multiple Airlines logo]()
$96
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 9/97:11 am -
2 stops25h 16m
Deal found 8/13![Multiple Airlines logo]()
$98
This Southwest deal was found by Cheapflights users on 8/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/64:45 pm -
1 stop3h 15m
Deal found 8/13![Southwest logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 9/157:11 am -
1 stop9h 03m
Deal found 8/17![Multiple Airlines logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 10/138:04 am -
1 stop8h 10m
Deal found 8/14![Multiple Airlines logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 10/67:11 am -
1 stop9h 03m
Deal found 8/13![Multiple Airlines logo]()
$102
This Kiwi.com deal was found by Cheapflights users on 8/15. 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 9/247:11 am -
1 stop29h 17m
Deal found 8/15![Multiple Airlines logo]()
$104
This American Airlines deal was found by Cheapflights users on 8/17. 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 9/23:25 pm -
1 stop6h 25m
Deal found 8/17![American Airlines logo]()
$130
This Southwest deal was found by Cheapflights users on 8/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/210:45 am -
2 stops7h 40m
Deal found 8/17![Southwest logo]()
$135
Find flight deals from Illinois to Greenville
Keep the following information in mind while searching for Illinois to Greenville flight deals. Data was last updated August 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $187 (Kiwi.com) |
One-way from | $86 (Kiwi.com) |
Popular in | May |
Cheapest in | January |
Average price | $314 |
Good round-trip deal | $279 or less |
Good one-way deal | $139 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Greenville 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 August 18, 2026.
Use the filters below to find and compare flights from Illinois to Greenville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoGreenville
MDW Chicago Midway - GSP Greenville
MDWGSP
Chicago Midway
Sat 10/3
4:00 pm-8:35 pm
1 stop3h 35m
Greenville
Mon 10/5
8:40 pm-11:55 pm
1 stop4h 15m
$200
St. LouisGreenville
STL Lambert-St Louis - GSP Greenville
STLGSP
Lambert-St Louis
Mon 10/5
6:45 am-1:35 pm
1 stop5h 50m
Greenville
Thu 10/8
8:40 pm-11:35 pm
1 stop3h 55m
$259
St. LouisGreenville
STL Lambert-St Louis - GSP Greenville
STLGSP
Lambert-St Louis
Wed 9/23
1:40 pm-7:30 pm
1 stop4h 50m
Greenville
Thu 9/24
6:55 pm-10:10 pm
1 stop4h 15m
$259
ChicagoGreenville
ORD Chicago O'Hare Intl - GSP Greenville
ORDGSP
Chicago O'Hare Intl
Thu 10/1
6:49 pm-9:54 pm
Nonstop2h 05m
Greenville
Sun 10/4
7:24 am-8:50 am
Nonstop2h 26m
$279
St. LouisGreenville
STL Lambert-St Louis - GSP Greenville
STLGSP
Lambert-St Louis
Fri 10/9
5:35 pm-10:51 pm
1 stop4h 16m
Greenville
Mon 10/12
7:14 pm-11:54 pm
1 stop5h 40m
$297
ChicagoGreenville
MDW Chicago Midway - GSP Greenville
MDWGSP
Chicago Midway
Fri 12/11
6:00 am-11:07 am
1 stop4h 07m
Greenville
Tue 12/15
7:00 am-10:33 am
1 stop4h 33m
$299
ChicagoGreenville
MDW Chicago Midway - GSP Greenville
MDWGSP
Chicago Midway
Mon 10/19
6:04 am-11:00 am
1 stop3h 56m
Greenville
Sat 10/24
12:54 pm-6:00 pm
1 stop6h 06m
$299
ChicagoGreenville
ORD Chicago O'Hare Intl - GSP Greenville
ORDGSP
Chicago O'Hare Intl
Fri 10/23
1:55 pm-9:27 pm
1 stop6h 32m
Greenville
Sun 10/25
5:40 am-8:39 am
1 stop3h 59m
$299
ChicagoGreenville
ORD Chicago O'Hare Intl - GSP Greenville
ORDGSP
Chicago O'Hare Intl
Sat 10/3
8:05 am-12:50 pm
1 stop3h 45m
Greenville
Wed 10/7
11:05 am-4:32 pm
1 stop6h 27m
$299
ChicagoGreenville
MDW Chicago Midway - GSP Greenville
MDWGSP
Chicago Midway
Wed 9/30
2:00 pm-8:55 pm
2 stops5h 55m
Greenville
Wed 10/7
1:25 pm-9:55 pm
2 stops9h 30m
$309
Showing 1-10 of 58 resultsSorted by cheapest first
Best time to book a flight from Illinois to Greenville
Have a flexible travel schedule? Discover the best time to fly to Greenville from Illinois with our price prediction graph.
ORD-GSP
MDW-GSP
STL-GSP
PIA-GSP
MLI-GSP
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 Greenville
USIL-GSP
ORD-GSP
MDW-GSP
STL-GSP
PIA-GSP
What is the cheapest month to book a flight from Illinois to Greenville?
Currently, January is the cheapest month in which you can book a flight from Illinois to Greenville (average of $269). Flying from Illinois to Greenville in April is currently the most expensive (average of $361). 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 GSP?
Find hourly flight availability from Illinois to Greenville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2026.
When flying from Illinois to Greenville, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 5% versus a flight in the evening.
Weekly flight availability from Illinois to Greenville
Explore weekly flight availability from Illinois to Greenville. 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 18, 2026.
The most flights from USIL to GSP are scheduled on a Monday (23 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (15 on average).
How much does it cost to fly round-trip from Illinois to Greenville?
Airfare is below average for this route at the moment.
Illinois to Greenville flights typically cost between $277 and $459 in September.The cheapest round-trip price found within the last 5 days was $187 on Multiple Airlines (Sep 18-Sep 21).
How far ahead should I book a flight from Illinois to Greenville?
To ensure you get the cheapest price possible for a flight from Illinois to Greenville, you should look to book at least 87 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest day to fly from Illinois to Greenville?
Use this chart to determine the cheapest time to fly round-trip from Illinois to Greenville. Price data was last updated on August 15, 2026.
Travelers seeking maximum savings on their Illinois to Greenville flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday at noon 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 Greenville. 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 Greenville?
Book flights to Greenville if you plan to visit one of these locationsGreer
Simpsonville
Greenwood
Duncan
Anderson
Seneca
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Illinois to Greenville
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Complete your trip
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Search flights from Illinois to Greenville by cabin class
Find flights from Illinois to Greenville, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Greenville
Explore flights to Greenville departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 18, 2026.
Illinois and Greenville flights
Browse other Illinois and Greenville flight options. Last updated on August 18, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Illinois to Greenville flights
Consider these flights traveling from Illinois to Greenville.
Top 3 airlines flying from Illinois to Greenville
Discover the top 3 airlines that operate flights from Illinois to Greenville. 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 August 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$202 | Average$405 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$212 | Average$387 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$268 | Average$368 | FlexibilityNo cancel fee | On-timeN/A |