$62+ Cheap flights from Jacksonville (JAX) 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 7/21. Fares are subject to change and may not be available on all flights or dates of travel.
JAX — ORD
Aug 3 — Aug 101
Round-trip
1 adult, Economy
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Find cheap flights from Jacksonville to Illinois with Cheapflights
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Cheapest flights from Jacksonville to IllinoisExplore the most affordable flight options available from Jacksonville to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 4, 2026.
Explore the most affordable flight options available from Jacksonville to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 7/316:29 pm
JAX
- STL
1 stop15h 28m
Frontier
Sat 8/84:57 pm
STL
- JAX
1 stop23h 37m
Frontier
Deal found 7/2![Frontier logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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 7/306:29 pm
JAX
- STL
1 stop15h 28m
Frontier
Thu 8/66:34 pm
STL
- JAX
1 stop22h 00m
Frontier
Deal found 7/1![Frontier logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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 7/286:29 pm
JAX
- STL
1 stop15h 28m
Frontier
Fri 7/314:57 pm
STL
- JAX
1 stop23h 37m
Frontier
Deal found 7/1![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 7/306:29 pm
JAX
- STL
1 stop15h 28m
Frontier
Fri 7/314:57 pm
STL
- JAX
1 stop23h 37m
Frontier
Deal found 7/2![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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.
Sun 9/276:46 pm
JAX
- STL
1 stop15h 54m
Frontier
Mon 10/510:35 am
STL
- JAX
1 stop6h 16m
Frontier
Deal found 6/30![Frontier logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:46 pm
JAX
- STL
1 stop15h 54m
Frontier
Mon 10/510:35 am
STL
- JAX
1 stop6h 16m
Frontier
Deal found 6/29![Frontier logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” 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 7/296:29 pm
JAX
- STL
1 stop24h 08m
Frontier
Sun 8/26:34 pm
STL
- JAX
1 stop22h 00m
Frontier
Deal found 6/29![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” 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 9/176:46 pm
JAX
- STL
1 stop15h 54m
Frontier
Sun 9/2010:35 am
STL
- JAX
1 stop6h 16m
Frontier
Deal found 6/29![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 7/176:29 pm
JAX
- STL
1 stop15h 28m
Frontier
Fri 7/314:57 pm
STL
- JAX
1 stop23h 37m
Frontier
Deal found 7/2![Frontier logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:46 pm
JAX
- STL
1 stop15h 54m
Frontier
Sun 10/1110:35 am
STL
- JAX
1 stop6h 16m
Frontier
Deal found 7/1![Frontier logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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 9/246:46 pm
JAX
- STL
1 stop15h 54m
Multiple Airlines
Sun 9/2710:35 am
STL
- JAX
2 stops20h 50m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” 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 8/269:38 pm
JAX
- ORD
1 stop16h 12m
Multiple Airlines
Fri 8/281:59 pm
ORD
- JAX
1 stop27h 11m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$222
Best flights from Jacksonville to IllinoisDiscover carefully curated flight deals from Jacksonville to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 4, 2026.
Discover carefully curated flight deals from Jacksonville to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 4, 2026.
This Southwest deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” 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 8/87:30 am
JAX
- MDW
Nonstop2h 20m
Southwest
Mon 8/106:45 pm
MDW
- JAX
Nonstop2h 15m
Southwest
Deal found 6/29![Southwest logo]()
$232
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” 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 9/176:46 pm
JAX
- STL
1 stop15h 54m
Multiple Airlines
Sun 9/2010:35 am
STL
- JAX
2 stops20h 50m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$238
This United Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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 7/2811:56 am
JAX
- ORD
1 stop7h 54m
United Airlines
Tue 8/46:19 pm
ORD
- JAX
Nonstop2h 40m
United Airlines
Deal found 6/30![United Airlines logo]()
$250
This Delta deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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 9/251:02 pm
JAX
- ORD
1 stop6h 43m
Delta
Sat 9/265:30 am
ORD
- JAX
1 stop6h 52m
Delta
Deal found 7/1![Delta logo]()
$289
This American Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 8/76:05 pm
JAX
- PIA
1 stop5h 54m
American Airlines
Mon 8/104:24 pm
PIA
- JAX
1 stop5h 42m
American Airlines
Deal found 7/3![American Airlines logo]()
$309
This JetBlue deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:06 am
JAX
- ORD
1 stop10h 21m
JetBlue
Thu 8/277:00 am
ORD
- JAX
1 stop6h 40m
JetBlue
Deal found 7/3![JetBlue logo]()
$362
This Southwest deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” 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 9/267:30 am
JAX
- MDW
Nonstop2h 20m
Southwest
Mon 9/286:45 pm
MDW
- JAX
Nonstop2h 15m
Southwest
Deal found 6/29![Southwest logo]()
$232
This United Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 9/237:15 am
JAX
- STL
1 stop5h 42m
United Airlines
Sat 9/268:00 am
STL
- JAX
2 stops9h 01m
United Airlines
Deal found 7/2![United Airlines logo]()
$274
This Southwest deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” 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 9/236:15 am
JAX
- STL
Nonstop2h 10m
Southwest
Sat 9/268:35 am
STL
- JAX
Nonstop2h 00m
Southwest
Deal found 6/29![Southwest logo]()
$257
This Delta deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2812:00 pm
JAX
- ORD
1 stop5h 24m
Delta
Fri 10/306:45 am
ORD
- JAX
1 stop7h 03m
Delta
Deal found 7/1![Delta logo]()
$289
This American Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 7/297:10 am
JAX
- MLI
1 stop5h 13m
American Airlines
Wed 8/58:09 am
MLI
- JAX
1 stop6h 22m
American Airlines
Deal found 7/3![American Airlines logo]()
$315
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 9/255:34 pm
JAX
- MDW
1 stop6h 11m
Delta
Sat 9/266:05 am
MDW
- JAX
1 stop6h 17m
Delta
Deal found 7/2![Delta logo]()
$289
This United Airlines deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” 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 8/117:10 pm
JAX
- ORD
1 stop5h 30m
United Airlines
Wed 8/1212:56 pm
ORD
- JAX
1 stop6h 58m
United Airlines
Deal found 6/29![United Airlines logo]()
$292
This Southwest deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 9/172:00 pm
JAX
- STL
Nonstop2h 10m
Southwest
Tue 9/2210:20 am
STL
- JAX
Nonstop2h 00m
Southwest
Deal found 7/2![Southwest logo]()
$279
This American Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 8/306:14 pm
JAX
- MLI
1 stop6h 54m
American Airlines
Sun 9/66:00 am
MLI
- JAX
1 stop6h 16m
American Airlines
Deal found 7/3![American Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 10/109:40 am
JAX
- ORD
Nonstop2h 46m
United Airlines
Tue 10/138:50 am
ORD
- JAX
1 stop5h 12m
United Airlines
Deal found 7/3![United Airlines logo]()
$305
This Southwest deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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 10/711:15 am
JAX
- STL
2 stops9h 20m
Southwest
Tue 10/275:40 am
STL
- JAX
2 stops7h 45m
Southwest
Deal found 6/30![Southwest logo]()
$285
This Delta deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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.
Sun 8/304:10 pm
JAX
- MLI
1 stop7h 09m
Delta
Sun 9/66:00 am
MLI
- JAX
1 stop6h 24m
Delta
Deal found 7/1![Delta logo]()
$315
This American Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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 7/289:21 am
JAX
- PIA
2 stops10h 07m
American Airlines
Tue 8/186:00 am
PIA
- JAX
2 stops9h 04m
American Airlines
Deal found 7/1![American Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/224:45 pm
JAX
- PIA
1 stop5h 14m
United Airlines
Wed 10/710:43 am
PIA
- JAX
1 stop7h 26m
United Airlines
Deal found 7/1![United Airlines logo]()
$309
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/284:10 pm
JAX
- MLI
1 stop7h 09m
Delta
Fri 9/45:09 pm
MLI
- JAX
1 stop4h 03m
Delta
Deal found 7/2![Delta logo]()
$319
This American Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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 8/146:05 pm
JAX
- PIA
2 stops6h 54m
American Airlines
Sat 8/156:00 am
PIA
- JAX
2 stops8h 31m
American Airlines
Deal found 7/1![American Airlines logo]()
$319
This Southwest deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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 8/62:00 pm
JAX
- STL
Nonstop2h 10m
Southwest
Thu 8/132:05 pm
STL
- JAX
Nonstop2h 00m
Southwest
Deal found 7/1![Southwest logo]()
$299
This United Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 9/186:40 am
JAX
- ORD
Nonstop2h 48m
United Airlines
Mon 9/2110:30 am
ORD
- JAX
Nonstop2h 35m
United Airlines
Deal found 7/2![United Airlines logo]()
$318
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 7/275:30 am
JAX
- STL
1 stop5h 13m
Delta
Wed 8/57:00 am
STL
- JAX
1 stop5h 24m
Delta
Deal found 7/2![Delta logo]()
$323
This Southwest deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/67:00 am
JAX
- MDW
Nonstop2h 25m
Southwest
Mon 8/103:20 pm
MDW
- JAX
1 stop4h 45m
Southwest
Deal found 7/2![Southwest logo]()
$305
This American Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 7/178:17 pm
JAX
- PIA
1 stop4h 41m
American Airlines
Tue 7/215:05 am
PIA
- JAX
1 stop6h 46m
American Airlines
Deal found 7/2![American Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 7/315:30 am
JAX
- STL
1 stop5h 13m
Delta
Sat 8/87:00 am
STL
- JAX
1 stop6h 37m
Delta
Deal found 7/2![Delta logo]()
$323
This Southwest deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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 9/276:00 am
JAX
- STL
1 stop4h 00m
Southwest
Tue 10/610:20 am
STL
- JAX
Nonstop1h 55m
Southwest
Deal found 6/30![Southwest logo]()
$308
This United Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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 7/316:35 pm
JAX
- ORD
Nonstop2h 59m
United Airlines
Fri 8/710:42 am
ORD
- JAX
Nonstop2h 45m
United Airlines
Deal found 7/1![United Airlines logo]()
$341
Last-minute flights from Jacksonville to IllinoisDiscover last-minute flight deals from Jacksonville to Illinois. Data last updated July 4, 2026 and is based on user searches.
Discover last-minute flight deals from Jacksonville to Illinois. Data last updated July 4, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 7/176:29 pm
JAX
- STL
1 stop15h 28m
Frontier
Fri 7/314:57 pm
STL
- JAX
1 stop23h 37m
Frontier
Deal found 7/2![Frontier logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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 7/246:29 pm
JAX
- STL
1 stop15h 28m
Frontier
Fri 7/314:57 pm
STL
- JAX
1 stop23h 37m
Frontier
Deal found 6/30![Frontier logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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 7/286:29 pm
JAX
- STL
1 stop15h 28m
Frontier
Fri 7/314:57 pm
STL
- JAX
1 stop23h 37m
Frontier
Deal found 7/1![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” 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 7/296:29 pm
JAX
- STL
1 stop24h 08m
Frontier
Sun 8/26:34 pm
STL
- JAX
1 stop22h 00m
Frontier
Deal found 6/29![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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 7/306:29 pm
JAX
- STL
1 stop15h 28m
Frontier
Thu 8/66:34 pm
STL
- JAX
1 stop22h 00m
Frontier
Deal found 7/1![Frontier logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 7/306:29 pm
JAX
- STL
1 stop15h 28m
Frontier
Fri 7/314:57 pm
STL
- JAX
1 stop23h 37m
Frontier
Deal found 7/2![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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 7/309:03 pm
JAX
- STL
2 stops36h 54m
Multiple Airlines
Thu 8/66:34 pm
STL
- JAX
1 stop22h 00m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 7/316:29 pm
JAX
- STL
1 stop15h 28m
Frontier
Sat 8/84:57 pm
STL
- JAX
1 stop23h 37m
Frontier
Deal found 7/2![Frontier logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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 8/16:29 pm
JAX
- STL
1 stop24h 08m
Multiple Airlines
Sun 8/96:34 pm
STL
- JAX
2 stops37h 04m
Multiple Airlines
Deal found 7/1![Multiple Airlines logo]()
$190
This Frontier deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:29 pm
JAX
- MDW
1 stop4h 34m
Frontier
Mon 8/1011:06 am
MDW
- JAX
1 stop5h 28m
Frontier
Deal found 6/29![Frontier logo]()
$226
This Kiwi.com deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 8/69:03 pm
JAX
- STL
2 stops36h 54m
Multiple Airlines
Thu 8/136:34 pm
STL
- JAX
1 stop22h 00m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” 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 8/269:38 pm
JAX
- ORD
1 stop16h 12m
Multiple Airlines
Fri 8/281:59 pm
ORD
- JAX
1 stop27h 11m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$222
One-way flights from Jacksonville to IllinoisSearch for one-way flight options from Jacksonville to Illinois. Find affordable one-way fares based on user searches. Data last updated July 4, 2026.
Search for one-way flight options from Jacksonville to Illinois. Find affordable one-way fares based on user searches. Data last updated July 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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 7/216:29 pm
JAX
- STL
1 stop15h 28m
Frontier
Deal found 7/1![Frontier logo]()
$62
This Kiwi.com deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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 7/286:29 pm
JAX
- STL
1 stop15h 28m
Frontier
Deal found 7/1![Frontier logo]()
$63
This Kiwi.com deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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 8/297:05 pm
JAX
- STL
1 stop23h 17m
Frontier
Deal found 7/1![Frontier logo]()
$64
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 7/296:29 pm
JAX
- STL
1 stop24h 08m
Frontier
Deal found 7/2![Frontier logo]()
$74
This Kiwi.com deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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 7/256:29 pm
JAX
- STL
1 stop24h 08m
Frontier
Deal found 6/30![Frontier logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 9/27:05 pm
JAX
- STL
1 stop23h 17m
Frontier
Deal found 7/4![Frontier logo]()
$96
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 10/36:46 pm
JAX
- STL
1 stop15h 54m
Frontier
Deal found 7/2![Frontier logo]()
$97
This American Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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 8/57:01 am
JAX
- ORD
Nonstop2h 48m
American Airlines
Deal found 7/1![American Airlines logo]()
$99
This Southwest deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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 8/297:30 am
JAX
- MDW
Nonstop2h 20m
Southwest
Deal found 7/1![Southwest logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 9/18:44 pm
JAX
- ORD
1 stop17h 06m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/3110:26 pm
JAX
- ORD
1 stop15h 24m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$102
This Super.com deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/510:30 am
JAX
- ORD
1 stop13h 57m
Frontier
Deal found 7/3![Frontier logo]()
$104
Find flight deals from Jacksonville to Illinois
Keep the following information in mind while searching for Jacksonville to Illinois flight deals. Data was last updated July 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $121 (Kiwi.com) |
One-way from | $62 (Kiwi.com) |
Popular in | May |
Cheapest in | September |
Average price | $350 |
Good round-trip deal | $217 or less |
Good one-way deal | $208 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Jacksonville 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 July 4, 2026.
Use the filters below to find and compare flights from Jacksonville to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
JacksonvilleChicago
JAX - MDW
JAXMDW
Jacksonville
Sat 8/8
7:30 am-8:50 am
Nonstop2h 20m
Chicago Midway
Mon 8/10
6:45 pm-10:00 pm
Nonstop2h 15m
$232
JacksonvilleChicago
JAX - MDW
JAXMDW
Jacksonville
Sat 9/26
7:30 am-8:50 am
Nonstop2h 20m
Chicago Midway
Mon 9/28
6:45 pm-10:00 pm
Nonstop2h 15m
$232
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
Thu 9/17
6:46 pm-9:40 am
1 stop15h 54m
Lambert-St Louis
Sun 9/20
10:35 am-8:25 am
2 stops20h 50m
$238
JacksonvilleChicago
JAX - ORD
JAXORD
Jacksonville
Tue 7/28
11:56 am-6:50 pm
1 stop7h 54m
Chicago O'Hare Intl
Tue 8/4
6:19 pm-9:59 pm
Nonstop2h 40m
$250
Quickest round-trip
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
Wed 9/23
6:15 am-7:25 am
Nonstop2h 10m
Lambert-St Louis
Sat 9/26
8:35 am-11:35 am
Nonstop2h 00m
$257
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
Wed 9/23
7:15 am-11:57 am
1 stop5h 42m
Lambert-St Louis
Sat 9/26
8:00 am-6:01 pm
2 stops9h 01m
$274
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
Thu 9/17
2:00 pm-3:10 pm
Nonstop2h 10m
Lambert-St Louis
Tue 9/22
10:20 am-1:20 pm
Nonstop2h 00m
$279
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
Wed 10/7
11:15 am-7:35 pm
2 stops9h 20m
Lambert-St Louis
Tue 10/27
5:40 am-2:25 pm
2 stops7h 45m
$285
JacksonvilleChicago
JAX - ORD
JAXORD
Jacksonville
Fri 9/25
1:02 pm-6:45 pm
1 stop6h 43m
Chicago O'Hare Intl
Sat 9/26
5:30 am-1:22 pm
1 stop6h 52m
$289
JacksonvilleChicago
JAX - ORD
JAXORD
Jacksonville
Wed 10/28
12:00 pm-4:24 pm
1 stop5h 24m
Chicago O'Hare Intl
Fri 10/30
6:45 am-2:48 pm
1 stop7h 03m
$289
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Jacksonville to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Jacksonville with our price prediction graph.
JAX-STL
JAX-ORD
JAX-MDW
JAX-PIA
JAX-MLI
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 Jacksonville to Illinois
JAX-USIL
JAX-STL
JAX-ORD
JAX-MDW
JAX-PIA
What is the cheapest month to book a flight from Jacksonville to Illinois?
Currently, September is the cheapest month in which you can book a flight from Jacksonville to Illinois (average of $78). Flying from Jacksonville to Illinois in February is currently the most expensive (average of $177). 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 JAX to IL?
Find hourly flight availability from Jacksonville 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 July 4, 2026.
When flying from Jacksonville to Illinois, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 11% versus a flight in the evening.
Weekly flight availability from Jacksonville to Illinois
Explore weekly flight availability from Jacksonville 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 July 4, 2026.
The most flights from JAX to USIL are scheduled on a Saturday (20 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (14 on average).
How much does it cost to fly round-trip from Jacksonville to Illinois?
How far ahead should I book a flight from Jacksonville to Illinois?
The price you pay for your flight from Jacksonville to Illinois may vary depending on when you book. For the best chance of a lower fare, look to book 31 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest day to fly from Jacksonville to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Jacksonville to Illinois. Price data was last updated on July 4, 2026.
Travelers seeking maximum savings on their Jacksonville to Illinois flight should consider departing on Thursday mornings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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 July 4, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Jacksonville to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Boarding
8.1
Crew
8.6
Comfort
8.0
Food
7.0
Overall
7.9
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Related info for your journey
Find useful and relevant information for your journey from Jacksonville 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 Jacksonville to Illinois
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Complete your trip
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Jacksonville and Illinois flights
Browse other Jacksonville and Illinois flight options. Last updated on July 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Jacksonville to Illinois flights
Consider these flights traveling from Jacksonville to Illinois.
Top 6 airlines flying from Jacksonville to Illinois
Discover the top 6 airlines that operate flights from Jacksonville 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 July 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$121 | Average$352 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$134 | Average$227 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$180 | Average$361 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$197 | Average$345 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$206 | Average$301 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$240 | Average$354 | FlexibilityNo cancel fee | On-time69% |