$93+ 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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — ORD
May 28 — Jun 41
Round-trip
1 adult, Economy
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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 April 28, 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 April 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
Mon 6/229:51 pm
GSP
- ORD
1 stop15h 52m
Multiple Airlines
Wed 6/245:26 pm
ORD
- GSP
1 stop25h 38m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$239
This Southwest deal was found by Cheapflights users on 4/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:25 am
GSP
- ORD
1 stop10h 05m
Southwest
Mon 5/182:40 pm
ORD
- GSP
1 stop6h 55m
Southwest
Deal found 4/23![Southwest logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 4/24. 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.
Mon 5/188:28 pm
GSP
- ORD
2 stops36h 27m
Multiple Airlines
Wed 6/245:26 pm
ORD
- GSP
1 stop25h 38m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$254
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Wed 6/1010:46 am
GSP
- ORD
Nonstop2h 14m
United Airlines
Sat 6/131:55 pm
ORD
- GSP
Nonstop2h 05m
United Airlines
Deal found 4/23![United Airlines logo]()
$255
This Southwest deal was found by Cheapflights users on 4/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/146:25 am
GSP
- MDW
1 stop9h 15m
Southwest
Sat 5/164:20 pm
MDW
- GSP
1 stop3h 20m
Southwest
Deal found 4/23![Southwest logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 6/243:48 pm
GSP
- ORD
1 stop9h 11m
Multiple Airlines
Tue 6/305:26 pm
ORD
- GSP
1 stop20h 32m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$258
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2311:34 am
GSP
- ORD
Nonstop2h 12m
American Airlines
Mon 6/298:00 am
ORD
- GSP
Nonstop2h 03m
American Airlines
Deal found 4/28![American Airlines logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 4/24. 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.
Thu 6/253:27 pm
GSP
- ORD
1 stop18h 55m
Multiple Airlines
Tue 6/305:26 pm
ORD
- GSP
1 stop20h 32m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$263
This American Airlines deal was found by Cheapflights users on 4/23. 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 6/107:32 pm
GSP
- ORD
1 stop5h 26m
American Airlines
Sat 6/138:59 pm
ORD
- GSP
Nonstop1h 59m
American Airlines
Deal found 4/23![American Airlines logo]()
$265
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/56:38 pm
GSP
- ORD
Nonstop2h 31m
American Airlines
Mon 6/88:49 pm
ORD
- GSP
Nonstop1h 59m
American Airlines
Deal found 4/28![American Airlines logo]()
$269
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/275:44 am
GSP
- STL
1 stop4h 24m
Delta
Tue 6/308:00 am
STL
- GSP
1 stop5h 51m
Delta
Deal found 4/26![Delta logo]()
$272
This United Airlines deal was found by Cheapflights users on 4/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/237:40 pm
GSP
- ORD
1 stop4h 46m
United Airlines
Mon 7/66:10 pm
ORD
- GSP
Nonstop2h 07m
United Airlines
Deal found 4/25![United Airlines logo]()
$272
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 April 28, 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 April 28, 2026.
This United Airlines deal was found by Cheapflights users on 4/24. 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 5/186:36 am
GSP
- ORD
Nonstop2h 24m
United Airlines
Wed 6/246:30 am
ORD
- GSP
1 stop6h 50m
United Airlines
Deal found 4/24![United Airlines logo]()
$272
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/1312:46 pm
GSP
- MDW
1 stop6h 25m
Delta
Tue 6/166:00 am
MDW
- GSP
1 stop3h 59m
Delta
Deal found 4/28![Delta logo]()
$275
This Southwest deal was found by Cheapflights users on 4/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/146:25 am
GSP
- MDW
1 stop9h 15m
Southwest
Sat 5/167:25 am
MDW
- GSP
2 stops8h 20m
Southwest
Deal found 4/23![Southwest logo]()
$285
This American Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/227:32 pm
GSP
- PIA
1 stop5h 26m
American Airlines
Mon 5/256:00 am
PIA
- GSP
1 stop4h 04m
American Airlines
Deal found 4/26![American Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 4/23. 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 6/67:40 pm
GSP
- ORD
1 stop4h 46m
United Airlines
Tue 6/96:30 am
ORD
- GSP
1 stop6h 50m
United Airlines
Deal found 4/23![United Airlines logo]()
$275
This Delta deal was found by Cheapflights users on 4/23. 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.
Wed 6/108:52 am
GSP
- ORD
1 stop4h 44m
Delta
Sun 6/146:40 am
ORD
- GSP
1 stop4h 38m
Delta
Deal found 4/23![Delta logo]()
$282
This Southwest deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:45 am
GSP
- MDW
2 stops10h 00m
Southwest
Sat 6/66:35 am
MDW
- GSP
1 stop4h 40m
Southwest
Deal found 4/27![Southwest logo]()
$286
This United Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/135:41 pm
GSP
- STL
1 stop4h 35m
United Airlines
Tue 6/166:00 am
STL
- GSP
2 stops7h 20m
United Airlines
Deal found 4/26![United Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/243:35 pm
GSP
- ORD
1 stop7h 59m
Delta
Mon 6/292:07 pm
ORD
- GSP
1 stop6h 41m
Delta
Deal found 4/26![Delta logo]()
$282
This Southwest deal was found by Cheapflights users on 4/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/226:50 pm
GSP
- MDW
1 stop4h 05m
Southwest
Wed 6/245:20 pm
MDW
- GSP
1 stop3h 40m
Southwest
Deal found 4/23![Southwest logo]()
$297
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:45 am
GSP
- MDW
1 stop6h 11m
Delta
Sat 5/235:10 pm
MDW
- GSP
1 stop5h 38m
Delta
Deal found 4/27![Delta logo]()
$282
This American Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/267:32 pm
GSP
- PIA
1 stop5h 26m
American Airlines
Tue 6/24:20 pm
PIA
- GSP
1 stop4h 15m
American Airlines
Deal found 4/26![American Airlines logo]()
$361
This Southwest deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/116:50 pm
GSP
- MDW
1 stop4h 05m
Southwest
Tue 6/1611:50 am
MDW
- GSP
2 stops7h 25m
Southwest
Deal found 4/27![Southwest logo]()
$309
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/285:40 am
GSP
- STL
1 stop3h 38m
Delta
Mon 6/16:00 am
STL
- GSP
1 stop3h 39m
Delta
Deal found 4/26![Delta logo]()
$285
This United Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:00 am
GSP
- BMI
1 stop4h 07m
United Airlines
Sat 7/189:44 am
BMI
- GSP
1 stop6h 16m
United Airlines
Deal found 4/26![United Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:08 pm
GSP
- PIA
2 stops6h 51m
American Airlines
Tue 6/29:53 am
PIA
- GSP
2 stops6h 42m
American Airlines
Deal found 4/26![American Airlines logo]()
$371
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/163:06 pm
GSP
- ORD
1 stop6h 27m
Delta
Sun 7/195:30 am
ORD
- GSP
1 stop5h 44m
Delta
Deal found 4/27![Delta logo]()
$289
This Southwest deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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
Sun 7/56:10 am
MDW
- GSP
1 stop5h 00m
Southwest
Deal found 4/26![Southwest logo]()
$325
This United Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1010:46 am
GSP
- ORD
Nonstop2h 14m
United Airlines
Wed 6/176:10 pm
ORD
- GSP
Nonstop2h 07m
United Airlines
Deal found 4/26![United Airlines logo]()
$335
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/225:05 pm
GSP
- ORD
1 stop5h 48m
Delta
Sun 5/242:45 pm
ORD
- GSP
1 stop7h 06m
Delta
Deal found 4/27![Delta logo]()
$289
This Southwest deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/131:55 pm
GSP
- STL
2 stops8h 50m
Southwest
Tue 6/165:40 am
STL
- GSP
2 stops6h 30m
Southwest
Deal found 4/26![Southwest logo]()
$328
This American Airlines deal was found by Cheapflights users on 4/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/285:25 pm
GSP
- PIA
1 stop7h 13m
American Airlines
Thu 7/25:05 am
PIA
- GSP
1 stop4h 07m
American Airlines
Deal found 4/25![American Airlines logo]()
$401
This United Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:33 am
GSP
- PIA
2 stops9h 26m
United Airlines
Sat 5/165:30 pm
PIA
- GSP
1 stop4h 28m
United Airlines
Deal found 4/26![United Airlines logo]()
$344
This Delta deal was found by Cheapflights users on 4/25. 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 6/128:52 am
GSP
- ORD
1 stop6h 24m
Delta
Mon 6/155:30 am
ORD
- GSP
1 stop5h 48m
Delta
Deal found 4/25![Delta logo]()
$289
This Southwest deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/116:25 pm
GSP
- MDW
1 stop6h 05m
Southwest
Fri 5/153:50 pm
MDW
- GSP
1 stop5h 45m
Southwest
Deal found 4/26![Southwest logo]()
$329
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/107:02 am
GSP
- PIA
2 stops7h 00m
American Airlines
Sat 5/166:00 am
PIA
- GSP
2 stops9h 00m
American Airlines
Deal found 4/28![American Airlines logo]()
$409
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/177:44 pm
GSP
- ORD
1 stop5h 09m
Delta
Sun 7/195:30 am
ORD
- GSP
1 stop5h 44m
Delta
Deal found 4/27![Delta logo]()
$289
This Southwest deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/56:50 pm
GSP
- STL
1 stop4h 55m
Southwest
Mon 6/85:35 pm
STL
- GSP
1 stop4h 15m
Southwest
Deal found 4/27![Southwest logo]()
$331
This United Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/106:36 am
GSP
- PIA
1 stop4h 28m
United Airlines
Sat 5/165:30 pm
PIA
- GSP
1 stop4h 28m
United Airlines
Deal found 4/28![United Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/138:14 pm
GSP
- PIA
1 stop4h 23m
American Airlines
Sun 5/176:23 pm
PIA
- GSP
1 stop4h 34m
American Airlines
Deal found 4/28![American Airlines logo]()
$414
Last-minute flights from Greenville to IllinoisDiscover last-minute flight deals from Greenville to Illinois. Data last updated April 28, 2026 and is based on user searches.
Discover last-minute flight deals from Greenville to Illinois. Data last updated April 28, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/611:31 am
GSP
- ORD
Nonstop2h 18m
American Airlines
Mon 5/118:00 am
ORD
- GSP
Nonstop2h 01m
American Airlines
Deal found 4/27![American Airlines logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/73:28 pm
GSP
- ORD
1 stop21h 55m
Multiple Airlines
Mon 6/18:05 am
ORD
- GSP
1 stop7h 10m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$286
This American Airlines deal was found by Cheapflights users on 4/24. 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 5/88:14 pm
GSP
- ORD
Nonstop2h 22m
American Airlines
Tue 5/124:40 pm
ORD
- GSP
Nonstop2h 04m
American Airlines
Deal found 4/24![American Airlines logo]()
$309
This Southwest deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/125:05 pm
GSP
- MDW
1 stop6h 10m
Southwest
Tue 5/194:50 pm
MDW
- GSP
1 stop3h 50m
Southwest
Deal found 4/26![Southwest logo]()
$302
This Southwest deal was found by Cheapflights users on 4/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/121:55 pm
GSP
- MDW
1 stop6h 35m
Southwest
Sat 5/164:20 pm
MDW
- GSP
1 stop3h 20m
Southwest
Deal found 4/25![Southwest logo]()
$309
This Southwest deal was found by Cheapflights users on 4/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/146:25 am
GSP
- MDW
1 stop9h 15m
Southwest
Sat 5/164:20 pm
MDW
- GSP
1 stop3h 20m
Southwest
Deal found 4/23![Southwest logo]()
$257
This Southwest deal was found by Cheapflights users on 4/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/186:25 pm
GSP
- MDW
1 stop6h 05m
Southwest
Sat 5/234:20 pm
MDW
- GSP
1 stop3h 20m
Southwest
Deal found 4/23![Southwest logo]()
$274
This Southwest deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2012:50 pm
GSP
- MDW
1 stop4h 55m
Southwest
Wed 6/34:50 pm
MDW
- GSP
1 stop3h 50m
Southwest
Deal found 4/27![Southwest logo]()
$275
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:45 am
GSP
- MDW
1 stop6h 11m
Delta
Sat 5/235:10 pm
MDW
- GSP
1 stop5h 38m
Delta
Deal found 4/27![Delta logo]()
$282
This Southwest deal was found by Cheapflights users on 4/24. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/2410:50 am
GSP
- MDW
1 stop3h 50m
Southwest
Sun 5/317:00 pm
MDW
- GSP
1 stop3h 25m
Southwest
Deal found 4/24![Southwest logo]()
$304
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/285:40 am
GSP
- STL
1 stop3h 38m
Delta
Mon 6/16:00 am
STL
- GSP
1 stop3h 39m
Delta
Deal found 4/26![Delta logo]()
$285
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/288:23 am
GSP
- EVV
1 stop12h 29m
Allegiant Air
Thu 6/48:20 am
EVV
- GSP
1 stop5h 38m
Allegiant Air
Deal found 4/27![Allegiant Air logo]()
$305
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 April 28, 2026.
Search for one-way flight options from Greenville to Illinois. Find affordable one-way fares based on user searches. Data last updated April 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/188:28 pm
GSP
- ORD
1 stop27h 45m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$93
This Southwest deal was found by Cheapflights users on 4/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/107:50 pm
GSP
- MDW
1 stop4h 20m
Southwest
Deal found 4/23![Southwest logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
Mon 6/229:51 pm
GSP
- ORD
1 stop15h 52m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 4/24. 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.
Fri 5/228:28 pm
GSP
- ORD
1 stop27h 45m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 4/24. 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.
Mon 7/2012:06 pm
GSP
- ORD
1 stop25h 19m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$127
This United Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:36 am
GSP
- ORD
Nonstop2h 24m
United Airlines
Deal found 4/27![United Airlines logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/293:06 pm
GSP
- ORD
1 stop25h 21m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/188:28 pm
GSP
- MDW
2 stops26h 34m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/28:37 am
GSP
- ORD
1 stop25h 45m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/233:19 pm
GSP
- ORD
1 stop9h 40m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
Fri 5/18:18 pm
GSP
- MDW
1 stop20h 55m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$135
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/195:05 pm
GSP
- MDW
1 stop5h 04m
Delta
Deal found 4/27![Delta logo]()
$138
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 April 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $239 (Kiwi.com) |
One-way from | $93 (Kiwi.com) |
Popular in | March |
Cheapest in | February |
Average price | $279 |
Good round-trip deal | $378 or less |
Good one-way deal | $263 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 April 28, 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
GreenvilleChicago
GSP - ORD
GSPORD
Greenville
Mon 5/18
6:36 am-8:00 am
Nonstop2h 24m
Chicago O'Hare Intl
Wed 6/24
6:30 am-2:20 pm
1 stop6h 50m
$272
GreenvilleChicago
GSP - MDW
GSPMDW
Greenville
Sat 6/13
12:46 pm-6:11 pm
1 stop6h 25m
Chicago Midway
Tue 6/16
6:00 am-10:59 am
1 stop3h 59m
$275
GreenvilleChicago
GSP - ORD
GSPORD
Greenville
Sat 6/6
7:40 pm-11:26 pm
1 stop4h 46m
Chicago O'Hare Intl
Tue 6/9
6:30 am-2:20 pm
1 stop6h 50m
$275
GreenvilleSt. Louis
GSP - STL
GSPSTL
Greenville
Sat 6/13
5:41 pm-9:16 pm
1 stop4h 35m
Lambert-St Louis
Tue 6/16
6:00 am-2:20 pm
2 stops7h 20m
$277
GreenvilleChicago
GSP - ORD
GSPORD
Greenville
Wed 6/10
8:52 am-12:36 pm
1 stop4h 44m
Chicago O'Hare Intl
Sun 6/14
6:40 am-12:18 pm
1 stop4h 38m
$282
GreenvilleChicago
GSP - ORD
GSPORD
Greenville
Wed 6/24
3:35 pm-10:34 pm
1 stop7h 59m
Chicago O'Hare Intl
Mon 6/29
2:07 pm-9:48 pm
1 stop6h 41m
$282
GreenvilleChicago
GSP - MDW
GSPMDW
Greenville
Wed 5/20
6:45 am-11:56 am
1 stop6h 11m
Chicago Midway
Sat 5/23
5:10 pm-11:48 pm
1 stop5h 38m
$282
GreenvilleChicago
GSP - MDW
GSPMDW
Greenville
Thu 5/14
6:25 am-2:40 pm
1 stop9h 15m
Chicago Midway
Sat 5/16
7:25 am-4:45 pm
2 stops8h 20m
$285
GreenvilleSt. Louis
GSP - STL
GSPSTL
Greenville
Thu 5/28
5:40 am-8:18 am
1 stop3h 38m
Lambert-St Louis
Mon 6/1
6:00 am-10:39 am
1 stop3h 39m
$285
GreenvilleChicago
GSP - MDW
GSPMDW
Greenville
Wed 6/3
6:45 am-3:45 pm
2 stops10h 00m
Chicago Midway
Sat 6/6
6:35 am-12:15 pm
1 stop4h 40m
$286
Showing 1-10 of 57 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-MDW
GSP-STL
GSP-ORD
GSP-EVV
GSP-PIA
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-MDW
GSP-STL
GSP-ORD
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 April 28, 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 April 25, 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 April 28, 2026.
The most flights from GSP to USIL are scheduled on a Tuesday (22 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (2 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 April 28, 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.
Food
7.2
Overall
7.9
Comfort
7.9
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Overall
7.9
Comfort
7.9
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Overall
7.9
Comfort
7.9
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Food
7.2
Overall
7.9
Comfort
7.9
Entertainment
7.8
Crew
8.5
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
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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Alternative routes for Greenville to Illinois
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Complete your trip
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Find flights from Greenville to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Greenville and Illinois flights
Browse other Greenville and Illinois flight options. Last updated on April 28, 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 April 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$107 | Average$310 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$202 | Average$320 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$202 | Average$362 | FlexibilityNo cancel fee | On-time71% |