$112+ Cheap flights from Greenville (GSP) to Illinois
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 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — ORD
Jun 12 — Jun 191
Round-trip
1 adult, Economy
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Find cheap flights from Greenville to Illinois with Cheapflights
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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 Greenville to IllinoisExplore the most affordable flight options available from Greenville to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 13, 2026.
Explore the most affordable flight options available from Greenville to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 7/248:20 am
GSP
- MLI
1 stop24h 27m
Allegiant Air
Sat 8/110:06 am
MLI
- GSP
1 stop27h 55m
Allegiant Air
Deal found 5/12![Allegiant Air logo]()
$225
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/218:23 am
GSP
- EVV
1 stop12h 11m
Allegiant Air
Thu 6/48:20 am
EVV
- GSP
1 stop5h 38m
Allegiant Air
Deal found 5/10![Allegiant Air logo]()
$256
This United Airlines deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” 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 7/45:43 pm
GSP
- ORD
Nonstop2h 17m
United Airlines
Sat 7/111:55 pm
ORD
- GSP
Nonstop2h 05m
United Airlines
Deal found 5/11![United Airlines logo]()
$262
This American Airlines deal was found by Cheapflights users on 5/12. 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.
Fri 7/36:43 pm
GSP
- ORD
Nonstop2h 31m
American Airlines
Sun 7/58:59 pm
ORD
- GSP
Nonstop1h 59m
American Airlines
Deal found 5/12![American Airlines logo]()
$263
This Southwest deal was found by Cheapflights users on 5/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/101:50 pm
GSP
- STL
1 stop6h 25m
Southwest
Tue 6/303:10 pm
STL
- GSP
1 stop5h 50m
Southwest
Deal found 5/12![Southwest logo]()
$267
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:41 pm
GSP
- ORD
Nonstop2h 34m
American Airlines
Sat 5/307:23 pm
ORD
- GSP
Nonstop2h 03m
American Airlines
Deal found 5/8![American Airlines logo]()
$267
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.
Sat 7/411:46 am
GSP
- ORD
Nonstop2h 09m
American Airlines
Tue 7/78:59 pm
ORD
- GSP
Nonstop1h 59m
American Airlines
Deal found 5/9![American Airlines logo]()
$268
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.
Thu 9/176:30 am
GSP
- ORD
Nonstop2h 07m
United Airlines
Mon 9/216:40 am
ORD
- GSP
Nonstop2h 03m
United Airlines
Deal found 5/9![United Airlines logo]()
$269
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/410:30 am
GSP
- ORD
1 stop4h 59m
United Airlines
Mon 7/66:10 pm
ORD
- GSP
Nonstop2h 07m
United Airlines
Deal found 5/8![United Airlines logo]()
$272
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:36 pm
GSP
- ORD
Nonstop2h 28m
American Airlines
Wed 9/96:30 pm
ORD
- GSP
Nonstop2h 01m
American Airlines
Deal found 5/8![American Airlines logo]()
$275
This American Airlines deal was found by Cheapflights users on 5/12. 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 6/45:25 pm
GSP
- STL
1 stop7h 34m
American Airlines
Wed 6/105:08 am
STL
- GSP
1 stop6h 16m
American Airlines
Deal found 5/12![American Airlines logo]()
$276
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/78:14 pm
GSP
- ORD
Nonstop2h 16m
American Airlines
Sun 11/88:05 am
ORD
- GSP
Nonstop1h 53m
American Airlines
Deal found 5/8![American Airlines logo]()
$277
Best flights from Greenville to IllinoisDiscover carefully curated flight deals from Greenville to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 13, 2026.
Discover carefully curated flight deals from Greenville to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/12. 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 7/248:20 am
GSP
- MLI
1 stop24h 27m
Allegiant Air
Sat 8/110:06 am
MLI
- GSP
1 stop27h 55m
Allegiant Air
Deal found 5/12![Allegiant Air logo]()
$225
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:41 pm
GSP
- ORD
Nonstop2h 17m
United Airlines
Mon 6/16:55 am
ORD
- GSP
Nonstop2h 00m
United Airlines
Deal found 5/8![United Airlines logo]()
$262
This Southwest deal was found by Cheapflights users on 5/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/101:50 pm
GSP
- STL
1 stop6h 25m
Southwest
Tue 6/303:10 pm
STL
- GSP
1 stop5h 50m
Southwest
Deal found 5/12![Southwest logo]()
$267
This Delta deal was found by Cheapflights users on 5/12. 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.
Sat 7/45:44 am
GSP
- ORD
1 stop5h 29m
Delta
Sat 7/117:05 am
ORD
- GSP
1 stop3h 59m
Delta
Deal found 5/12![Delta logo]()
$282
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:43 pm
GSP
- BMI
1 stop6h 52m
American Airlines
Sat 7/186:00 pm
BMI
- GSP
1 stop4h 58m
American Airlines
Deal found 5/8![American Airlines logo]()
$319
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.
Mon 6/85:43 pm
GSP
- ORD
Nonstop2h 17m
United Airlines
Mon 6/156:10 pm
ORD
- GSP
Nonstop2h 07m
United Airlines
Deal found 5/9![United Airlines logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” 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 6/59:20 pm
GSP
- EVV
2 stops19h 29m
Multiple Airlines
Sun 6/78:07 pm
EVV
- GSP
1 stop10h 32m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$538
This Delta deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” 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 7/313:06 pm
GSP
- ORD
1 stop4h 39m
Delta
Sun 8/26:35 am
ORD
- GSP
1 stop4h 39m
Delta
Deal found 5/11![Delta logo]()
$289
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/48:30 am
GSP
- MDW
2 stops6h 35m
Southwest
Sat 6/63:30 pm
MDW
- GSP
1 stop3h 30m
Southwest
Deal found 5/9![Southwest logo]()
$294
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 6/35:43 pm
GSP
- ORD
Nonstop2h 17m
United Airlines
Sat 6/66:55 am
ORD
- GSP
Nonstop2h 00m
United Airlines
Deal found 5/9![United Airlines logo]()
$269
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 6/247:10 am
GSP
- ORD
1 stop6h 54m
Delta
Mon 6/2911:30 am
ORD
- GSP
1 stop5h 45m
Delta
Deal found 5/10![Delta logo]()
$289
This Southwest deal was found by Cheapflights users on 5/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/297:50 pm
GSP
- MDW
1 stop4h 20m
Southwest
Tue 8/48:15 am
MDW
- GSP
2 stops7h 30m
Southwest
Deal found 5/12![Southwest logo]()
$294
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.
Fri 7/36:18 pm
GSP
- MLI
2 stops7h 23m
American Airlines
Mon 7/66:50 pm
MLI
- GSP
1 stop4h 08m
American Airlines
Deal found 5/10![American Airlines logo]()
$324
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.
Thu 9/176:30 am
GSP
- ORD
Nonstop2h 07m
United Airlines
Mon 9/216:40 am
ORD
- GSP
Nonstop2h 03m
United Airlines
Deal found 5/9![United Airlines logo]()
$269
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.
Sat 6/67:20 am
GSP
- MDW
1 stop6h 22m
Delta
Tue 6/911:05 am
MDW
- GSP
1 stop4h 05m
Delta
Deal found 5/10![Delta logo]()
$289
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:25 pm
GSP
- MDW
1 stop3h 35m
Southwest
Mon 6/18:00 am
MDW
- GSP
2 stops8h 50m
Southwest
Deal found 5/8![Southwest logo]()
$308
This American Airlines deal was found by Cheapflights users on 5/12. 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.
Wed 5/276:08 pm
GSP
- MLI
1 stop4h 54m
American Airlines
Sun 5/316:00 am
MLI
- GSP
1 stop4h 04m
American Airlines
Deal found 5/12![American Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/68:49 am
GSP
- MDW
1 stop4h 02m
Delta
Mon 8/106:05 am
MDW
- GSP
1 stop3h 35m
Delta
Deal found 5/11![Delta logo]()
$289
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 9/177:51 pm
GSP
- ORD
1 stop4h 30m
United Airlines
Wed 9/238:40 am
ORD
- GSP
1 stop4h 39m
United Airlines
Deal found 5/7![United Airlines logo]()
$297
This American Airlines deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” 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 5/266:08 pm
GSP
- PIA
2 stops6h 51m
American Airlines
Sat 5/304:27 pm
PIA
- GSP
1 stop4h 08m
American Airlines
Deal found 5/11![American Airlines logo]()
$344
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 7/228:52 am
GSP
- MDW
1 stop4h 04m
Delta
Mon 7/276:00 am
MDW
- GSP
1 stop3h 47m
Delta
Deal found 5/9![Delta logo]()
$289
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/247:50 pm
GSP
- STL
1 stop4h 10m
Southwest
Sat 6/274:40 pm
STL
- GSP
1 stop5h 10m
Southwest
Deal found 5/9![Southwest logo]()
$327
This American Airlines deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” 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 5/266:08 pm
GSP
- BMI
2 stops6h 51m
American Airlines
Sat 5/306:48 am
BMI
- GSP
1 stop8h 47m
American Airlines
Deal found 5/11![American Airlines logo]()
$344
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 5/236:00 am
GSP
- ORD
Nonstop2h 20m
United Airlines
Sun 5/247:45 am
ORD
- GSP
1 stop5h 35m
United Airlines
Deal found 5/7![United Airlines logo]()
$319
This Southwest deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” 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 7/31:55 pm
GSP
- STL
1 stop7h 25m
Southwest
Wed 7/81:20 pm
STL
- GSP
1 stop5h 55m
Southwest
Deal found 5/11![Southwest logo]()
$327
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.
Thu 7/28:52 am
GSP
- ORD
1 stop6h 24m
Delta
Mon 7/611:30 am
ORD
- GSP
1 stop5h 45m
Delta
Deal found 5/7![Delta logo]()
$299
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.
Fri 7/105:27 pm
GSP
- BMI
1 stop6h 41m
American Airlines
Sat 7/186:00 pm
BMI
- GSP
1 stop4h 59m
American Airlines
Deal found 5/10![American Airlines logo]()
$344
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.
Fri 8/77:10 am
GSP
- ORD
1 stop7h 03m
Delta
Mon 8/106:40 am
ORD
- GSP
1 stop5h 01m
Delta
Deal found 5/7![Delta logo]()
$299
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/61:55 pm
GSP
- MDW
2 stops6h 20m
Southwest
Tue 6/911:25 am
MDW
- GSP
2 stops7h 50m
Southwest
Deal found 5/10![Southwest logo]()
$329
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:45 am
GSP
- MDW
1 stop5h 05m
Delta
Wed 9/96:00 am
MDW
- GSP
1 stop3h 58m
Delta
Deal found 5/8![Delta logo]()
$299
Last-minute flights from Greenville to IllinoisDiscover last-minute flight deals from Greenville to Illinois. Data last updated May 13, 2026 and is based on user searches.
Discover last-minute flight deals from Greenville to Illinois. Data last updated May 13, 2026 and is based on user searches.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/218:23 am
GSP
- EVV
1 stop12h 11m
Allegiant Air
Thu 6/48:20 am
EVV
- GSP
1 stop5h 38m
Allegiant Air
Deal found 5/10![Allegiant Air logo]()
$256
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/2410:50 am
GSP
- ORD
1 stop4h 05m
Southwest
Fri 5/292:40 pm
ORD
- GSP
1 stop6h 55m
Southwest
Deal found 5/9![Southwest logo]()
$280
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:41 pm
GSP
- ORD
Nonstop2h 34m
American Airlines
Sat 5/307:23 pm
ORD
- GSP
Nonstop2h 03m
American Airlines
Deal found 5/8![American Airlines logo]()
$267
This United Airlines deal was found by Cheapflights users on 5/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:10 am
GSP
- ORD
Nonstop2h 20m
United Airlines
Sun 5/317:08 am
ORD
- GSP
Nonstop2h 03m
United Airlines
Deal found 5/12![United Airlines logo]()
$282
This Southwest deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” 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 5/286:25 pm
GSP
- MDW
1 stop6h 05m
Southwest
Mon 6/16:15 pm
MDW
- GSP
1 stop3h 20m
Southwest
Deal found 5/11![Southwest logo]()
$282
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:41 pm
GSP
- ORD
Nonstop2h 17m
United Airlines
Mon 6/16:55 am
ORD
- GSP
Nonstop2h 00m
United Airlines
Deal found 5/8![United Airlines logo]()
$262
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:41 pm
GSP
- ORD
Nonstop2h 34m
American Airlines
Tue 6/98:00 am
ORD
- GSP
Nonstop2h 03m
American Airlines
Deal found 5/8![American Airlines logo]()
$275
This American Airlines deal was found by Cheapflights users on 5/12. 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 6/46:38 pm
GSP
- ORD
Nonstop2h 31m
American Airlines
Mon 6/88:49 pm
ORD
- GSP
Nonstop1h 59m
American Airlines
Deal found 5/12![American Airlines logo]()
$269
This American Airlines deal was found by Cheapflights users on 5/12. 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 6/45:25 pm
GSP
- STL
1 stop7h 34m
American Airlines
Wed 6/105:08 am
STL
- GSP
1 stop6h 16m
American Airlines
Deal found 5/12![American Airlines logo]()
$276
This United Airlines deal was found by Cheapflights users on 5/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/95:43 pm
GSP
- STL
1 stop4h 47m
United Airlines
Tue 6/166:00 am
STL
- GSP
2 stops7h 20m
United Airlines
Deal found 5/12![United Airlines logo]()
$280
This Southwest deal was found by Cheapflights users on 5/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/101:50 pm
GSP
- STL
1 stop6h 25m
Southwest
Tue 6/303:10 pm
STL
- GSP
1 stop5h 50m
Southwest
Deal found 5/12![Southwest logo]()
$267
This American Airlines deal was found by Cheapflights users on 5/12. 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 6/156:31 pm
GSP
- STL
1 stop6h 28m
American Airlines
Wed 6/176:15 am
STL
- GSP
1 stop7h 03m
American Airlines
Deal found 5/12![American Airlines logo]()
$284
One-way flights from Greenville to IllinoisSearch for one-way flight options from Greenville to Illinois. Find affordable one-way fares based on user searches. Data last updated May 13, 2026.
Search for one-way flight options from Greenville to Illinois. Find affordable one-way fares based on user searches. Data last updated May 13, 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.
Fri 7/33:31 pm
GSP
- ORD
1 stop21h 53m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” 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 7/93:19 pm
GSP
- ORD
1 stop22h 06m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$126
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/33:31 pm
GSP
- ORD
2 stops17h 22m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” 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 7/83:48 pm
GSP
- ORD
2 stops29h 05m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$128
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.
Tue 8/2511:07 am
GSP
- MDW
2 stops12h 04m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$129
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.
Fri 7/33:31 pm
GSP
- MDW
2 stops31h 40m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” 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 8/411:07 am
GSP
- ORD
2 stops26h 18m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$131
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.
Mon 6/14:23 pm
GSP
- ORD
2 stops40h 32m
Multiple Airlines
Deal found 5/9![Multiple Airlines logo]()
$137
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:10 am
GSP
- ORD
Nonstop2h 20m
United Airlines
Deal found 5/8![United Airlines logo]()
$138
This Southwest deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” 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 5/296:25 pm
GSP
- MDW
1 stop3h 35m
Southwest
Deal found 5/11![Southwest logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” 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 6/293:06 pm
GSP
- MDW
2 stops45h 03m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$141
This Southwest deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” 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 7/26:50 pm
GSP
- MDW
1 stop4h 05m
Southwest
Deal found 5/11![Southwest logo]()
$145
Find flight deals from Greenville to Illinois
Keep the following information in mind while searching for Greenville to Illinois flight deals. Data was last updated May 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $225 (Kiwi.com) |
One-way from | $112 (Kiwi.com) |
Popular in | March |
Cheapest in | February |
Average price | $303 |
Good round-trip deal | $378 or less |
Good one-way deal | $260 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Greenville to Illinois 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 13, 2026.
Use the filters below to find and compare flights from Greenville to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
GreenvilleMoline
GSP - MLI
GSPMLI
Greenville
Fri 7/24
8:20 am-7:47 am
1 stop24h 27m
Moline Quad-City
Sat 8/1
10:06 am-3:01 pm
1 stop27h 55m
$225
GreenvilleChicago
GSP - ORD
GSPORD
Greenville
Fri 5/29
5:41 pm-6:58 pm
Nonstop2h 17m
Chicago O'Hare Intl
Mon 6/1
6:55 am-9:55 am
Nonstop2h 00m
$262
GreenvilleSt. Louis
GSP - STL
GSPSTL
Greenville
Wed 6/10
1:50 pm-7:15 pm
1 stop6h 25m
Lambert-St Louis
Tue 6/30
3:10 pm-10:00 pm
1 stop5h 50m
$267
GreenvilleChicago
GSP - ORD
GSPORD
Greenville
Mon 6/8
5:43 pm-7:00 pm
Nonstop2h 17m
Chicago O'Hare Intl
Mon 6/15
6:10 pm-9:17 pm
Nonstop2h 07m
$269
GreenvilleChicago
GSP - ORD
GSPORD
Greenville
Wed 6/3
5:43 pm-7:00 pm
Nonstop2h 17m
Chicago O'Hare Intl
Sat 6/6
6:55 am-9:55 am
Nonstop2h 00m
$269
Quickest round-trip
GreenvilleChicago
GSP - ORD
GSPORD
Greenville
Thu 9/17
6:30 am-7:37 am
Nonstop2h 07m
Chicago O'Hare Intl
Mon 9/21
6:40 am-9:43 am
Nonstop2h 03m
$269
GreenvilleChicago
GSP - ORD
GSPORD
Greenville
Sat 7/4
5:44 am-10:13 am
1 stop5h 29m
Chicago O'Hare Intl
Sat 7/11
7:05 am-12:04 pm
1 stop3h 59m
$282
GreenvilleChicago
GSP - ORD
GSPORD
Greenville
Fri 7/31
3:06 pm-6:45 pm
1 stop4h 39m
Chicago O'Hare Intl
Sun 8/2
6:35 am-12:14 pm
1 stop4h 39m
$289
GreenvilleChicago
GSP - ORD
GSPORD
Greenville
Wed 6/24
7:10 am-1:04 pm
1 stop6h 54m
Chicago O'Hare Intl
Mon 6/29
11:30 am-6:15 pm
1 stop5h 45m
$289
GreenvilleChicago
GSP - MDW
GSPMDW
Greenville
Sat 6/6
7:20 am-12:42 pm
1 stop6h 22m
Chicago Midway
Tue 6/9
11:05 am-4:10 pm
1 stop4h 05m
$289
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Greenville to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Greenville with our price prediction graph.
GSP-ORD
GSP-MDW
GSP-MLI
GSP-EVV
GSP-STL
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 Greenville to Illinois
GSP-USIL
GSP-ORD
GSP-MDW
GSP-MLI
GSP-EVV
How far ahead should I book a flight from Greenville to Illinois?
To ensure you get the cheapest price possible for a flight from Greenville to Illinois, you should look to book at least 86 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 month to book a flight from Greenville to Illinois?
Currently, November is the cheapest month in which you can book a flight from Greenville to Illinois (average of $81). Flying from Greenville to Illinois in January is currently the most expensive (average of $195). 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 GSP to IL?
Find hourly flight availability from Greenville to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 13, 2026.
One of the essential ways to save on airfare from Greenville to Illinois is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 65% on airfare.
What is the cheapest day to fly from Greenville to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Greenville to Illinois. Price data was last updated on May 9, 2026.
Travelers seeking maximum savings on their Greenville to Illinois flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Greenville to Illinois
Explore weekly flight availability from Greenville to Illinois. 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 13, 2026.
The most flights from GSP to USIL are scheduled on a Monday (25 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 on average).
How much does it cost to fly round-trip from Greenville to Illinois?
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated May 13, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAmerican Airlines from Greenville to Illinois to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Food
7.2
Comfort
7.8
Entertainment
7.8
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Food
7.2
Comfort
7.8
Entertainment
7.8
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Food
7.2
Comfort
7.8
Entertainment
7.8
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Food
7.2
Comfort
7.8
Entertainment
7.8
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Greenville to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Complete your trip
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Greenville and Illinois flights
Browse other Greenville and Illinois flight options. Last updated on May 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Greenville to Illinois flights
Consider these flights traveling from Greenville to Illinois.
Top 3 airlines flying from Greenville to Illinois
Discover the top 3 airlines that operate flights from Greenville to Illinois. 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 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$107 | Average$310 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$202 | Average$321 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$202 | Average$308 | FlexibilityNo cancel fee | On-time71% |