$82+ 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 8/3. Fares are subject to change and may not be available on all flights or dates of travel.
JAX — ORD
Jul 9 — Jul 161
Round-trip
1 adult, Economy
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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 June 9, 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 June 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Wed 7/16:28 pm
JAX
- STL
1 stop24h 02m
Frontier
Mon 7/64:57 pm
STL
- JAX
1 stop23h 37m
Frontier
Deal found 6/8![Frontier logo]()
$164
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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
Wed 8/54:57 pm
STL
- JAX
1 stop23h 37m
Frontier
Deal found 6/5![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 7/316:29 pm
JAX
- STL
1 stop15h 28m
Frontier
Sat 8/84:57 pm
STL
- JAX
1 stop23h 37m
Frontier
Deal found 6/9![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 7/146:29 pm
JAX
- STL
1 stop15h 28m
Frontier
Sat 7/184:57 pm
STL
- JAX
1 stop23h 37m
Frontier
Deal found 6/7![Frontier logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 6/4. 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.
Sun 8/96:29 pm
JAX
- STL
1 stop15h 28m
Frontier
Thu 8/136:34 pm
STL
- JAX
1 stop22h 00m
Frontier
Deal found 6/4![Frontier logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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
Mon 8/34:57 pm
STL
- JAX
1 stop23h 37m
Frontier
Deal found 6/5![Frontier logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Sat 8/16:29 pm
JAX
- STL
1 stop24h 08m
Frontier
Sat 8/84:57 pm
STL
- JAX
1 stop23h 37m
Frontier
Deal found 6/8![Frontier logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 6/266:28 pm
JAX
- STL
1 stop15h 24m
Frontier
Thu 7/26:31 pm
STL
- JAX
1 stop22h 02m
Frontier
Deal found 6/5![Frontier logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 7/36:28 pm
JAX
- STL
1 stop15h 24m
Frontier
Fri 7/104:57 pm
STL
- JAX
1 stop23h 37m
Frontier
Deal found 6/5![Frontier logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 6/296:28 pm
JAX
- STL
1 stop24h 02m
Frontier
Thu 7/96:34 pm
STL
- JAX
1 stop22h 00m
Frontier
Deal found 6/9![Frontier logo]()
$186
This American Airlines deal was found by Cheapflights users on 6/9. 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.
Tue 7/77:10 am
JAX
- ORD
Nonstop2h 48m
American Airlines
Tue 7/147:31 pm
ORD
- JAX
Nonstop2h 36m
American Airlines
Deal found 6/9![American Airlines logo]()
$217
This Southwest deal was found by Cheapflights users on 6/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:50 pm
JAX
- MDW
Nonstop2h 25m
Southwest
Wed 7/1512:50 pm
MDW
- JAX
Nonstop2h 20m
Southwest
Deal found 6/4![Southwest logo]()
$217
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 June 9, 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 June 9, 2026.
This Southwest deal was found by Cheapflights users on 6/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/511:00 am
JAX
- MDW
1 stop6h 10m
Southwest
Tue 8/111:00 pm
MDW
- JAX
2 stops5h 40m
Southwest
Deal found 6/7![Southwest logo]()
$242
This Delta deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 7/212:50 pm
JAX
- ORD
1 stop6h 43m
Delta
Wed 7/228:03 am
ORD
- JAX
1 stop6h 06m
Delta
Deal found 6/5![Delta logo]()
$247
This American Airlines deal was found by Cheapflights users on 6/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:11 pm
JAX
- STL
1 stop6h 47m
American Airlines
Tue 7/215:32 am
STL
- JAX
1 stop6h 56m
American Airlines
Deal found 6/4![American Airlines logo]()
$255
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Tue 7/144:55 pm
JAX
- ORD
Nonstop2h 53m
United Airlines
Fri 7/176:19 pm
ORD
- JAX
Nonstop2h 40m
United Airlines
Deal found 6/9![United Airlines logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Thu 7/96:29 pm
JAX
- ORD
2 stops18h 46m
Multiple Airlines
Thu 7/168:05 am
ORD
- JAX
1 stop7h 20m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$320
This Southwest deal was found by Cheapflights users on 6/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/55:25 pm
JAX
- MDW
Nonstop2h 25m
Southwest
Mon 8/106:45 pm
MDW
- JAX
Nonstop2h 15m
Southwest
Deal found 6/4![Southwest logo]()
$256
This Delta deal was found by Cheapflights users on 6/9. 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 8/512:02 pm
JAX
- ORD
1 stop5h 15m
Delta
Mon 8/106:40 am
ORD
- JAX
1 stop4h 04m
Delta
Deal found 6/9![Delta logo]()
$260
This Southwest deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 7/287:25 am
JAX
- MDW
Nonstop2h 25m
Southwest
Thu 7/307:20 pm
MDW
- JAX
Nonstop2h 20m
Southwest
Deal found 6/5![Southwest logo]()
$279
This American Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 7/267:10 am
JAX
- MLI
1 stop5h 13m
American Airlines
Sat 8/14:20 pm
MLI
- JAX
1 stop6h 39m
American Airlines
Deal found 6/5![American Airlines logo]()
$315
This United Airlines deal was found by Cheapflights users on 6/8. 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.
Tue 7/147:20 am
JAX
- MLI
1 stop6h 17m
United Airlines
Tue 7/211:14 pm
MLI
- JAX
2 stops9h 45m
United Airlines
Deal found 6/8![United Airlines logo]()
$316
This Delta deal was found by Cheapflights users on 6/8. 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.
Tue 7/144:14 pm
JAX
- MLI
1 stop7h 17m
Delta
Tue 7/215:56 am
MLI
- JAX
1 stop5h 04m
Delta
Deal found 6/8![Delta logo]()
$311
This United Airlines deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 7/47:20 am
JAX
- PIA
1 stop6h 17m
United Airlines
Sat 7/112:33 pm
PIA
- JAX
1 stop6h 26m
United Airlines
Deal found 6/6![United Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 6/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/57:10 am
JAX
- MLI
1 stop5h 03m
American Airlines
Sat 7/1111:28 am
MLI
- JAX
1 stop4h 50m
American Airlines
Deal found 6/7![American Airlines logo]()
$320
This Southwest deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 8/56:15 am
JAX
- STL
Nonstop2h 10m
Southwest
Wed 8/510:15 am
STL
- JAX
1 stop5h 30m
Southwest
Deal found 6/6![Southwest logo]()
$296
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 7/197:20 am
JAX
- MLI
1 stop7h 36m
United Airlines
Sat 7/252:31 pm
MLI
- JAX
1 stop6h 28m
United Airlines
Deal found 6/5![United Airlines logo]()
$331
This Southwest deal was found by Cheapflights users on 6/8. 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 8/287:15 pm
JAX
- MDW
1 stop4h 05m
Southwest
Mon 8/318:15 am
MDW
- JAX
2 stops6h 00m
Southwest
Deal found 6/8![Southwest logo]()
$312
This American Airlines deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 6/245:59 pm
JAX
- MLI
1 stop7h 12m
American Airlines
Wed 7/86:08 am
MLI
- JAX
2 stops10h 06m
American Airlines
Deal found 6/6![American Airlines logo]()
$350
This Delta deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 7/167:02 pm
JAX
- MLI
1 stop4h 29m
Delta
Thu 7/235:05 pm
MLI
- JAX
1 stop6h 04m
Delta
Deal found 6/5![Delta logo]()
$354
This United Airlines deal was found by Cheapflights users on 6/9. 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 7/94:55 pm
JAX
- ORD
Nonstop2h 53m
United Airlines
Thu 7/166:19 pm
ORD
- JAX
Nonstop2h 40m
United Airlines
Deal found 6/9![United Airlines logo]()
$341
This Southwest deal was found by Cheapflights users on 6/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:15 am
JAX
- MDW
1 stop6h 25m
Southwest
Mon 9/76:45 pm
MDW
- JAX
Nonstop2h 15m
Southwest
Deal found 6/4![Southwest logo]()
$328
This Delta deal was found by Cheapflights users on 6/7. 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 7/3111:47 am
JAX
- MDW
1 stop7h 38m
Delta
Sat 8/16:00 am
MDW
- JAX
1 stop5h 00m
Delta
Deal found 6/7![Delta logo]()
$361
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Fri 7/177:20 am
JAX
- ORD
Nonstop2h 52m
United Airlines
Tue 7/216:19 pm
ORD
- JAX
Nonstop2h 40m
United Airlines
Deal found 6/7![United Airlines logo]()
$341
This Southwest deal was found by Cheapflights users on 6/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/96:25 am
JAX
- STL
Nonstop2h 10m
Southwest
Thu 8/133:45 pm
STL
- JAX
1 stop4h 20m
Southwest
Deal found 6/4![Southwest logo]()
$336
This United Airlines deal was found by Cheapflights users on 6/7. 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 7/237:20 am
JAX
- ORD
Nonstop2h 52m
United Airlines
Mon 7/276:19 pm
ORD
- JAX
Nonstop2h 40m
United Airlines
Deal found 6/7![United Airlines logo]()
$341
This Southwest deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 7/77:25 am
JAX
- MDW
Nonstop2h 25m
Southwest
Mon 7/207:20 pm
MDW
- JAX
Nonstop2h 20m
Southwest
Deal found 6/6![Southwest logo]()
$341
This United Airlines deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 6/247:20 am
JAX
- MLI
1 stop7h 36m
United Airlines
Wed 7/82:31 pm
MLI
- JAX
1 stop6h 28m
United Airlines
Deal found 6/6![United Airlines logo]()
$345
This Southwest deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 7/104:55 pm
JAX
- STL
Nonstop2h 10m
Southwest
Wed 7/2210:15 am
STL
- JAX
Nonstop2h 00m
Southwest
Deal found 6/5![Southwest logo]()
$342
This American Airlines deal was found by Cheapflights users on 6/9. 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.
Sun 6/286:05 pm
JAX
- MLI
1 stop4h 57m
American Airlines
Fri 7/34:20 pm
MLI
- JAX
1 stop6h 39m
American Airlines
Deal found 6/9![American Airlines logo]()
$502
This United Airlines deal was found by Cheapflights users on 6/8. 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 7/104:55 pm
JAX
- ORD
Nonstop2h 53m
United Airlines
Tue 7/1411:07 am
ORD
- JAX
1 stop8h 01m
United Airlines
Deal found 6/8![United Airlines logo]()
$351
This Southwest deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 8/74:30 pm
JAX
- MDW
2 stops7h 50m
Southwest
Mon 8/105:55 am
MDW
- JAX
1 stop6h 25m
Southwest
Deal found 6/5![Southwest logo]()
$343
Last-minute flights from Jacksonville to IllinoisDiscover last-minute flight deals from Jacksonville to Illinois. Data last updated June 9, 2026 and is based on user searches.
Discover last-minute flight deals from Jacksonville to Illinois. Data last updated June 9, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 6/266:28 pm
JAX
- STL
1 stop15h 24m
Frontier
Thu 7/26:31 pm
STL
- JAX
1 stop22h 02m
Frontier
Deal found 6/5![Frontier logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 6/296:28 pm
JAX
- STL
1 stop24h 02m
Frontier
Thu 7/96:34 pm
STL
- JAX
1 stop22h 00m
Frontier
Deal found 6/9![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Wed 7/16:28 pm
JAX
- STL
1 stop24h 02m
Frontier
Mon 7/64:57 pm
STL
- JAX
1 stop23h 37m
Frontier
Deal found 6/8![Frontier logo]()
$164
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 7/36:28 pm
JAX
- STL
1 stop15h 24m
Frontier
Fri 7/104:57 pm
STL
- JAX
1 stop23h 37m
Frontier
Deal found 6/5![Frontier logo]()
$181
This American Airlines deal was found by Cheapflights users on 6/9. 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.
Tue 7/77:10 am
JAX
- ORD
Nonstop2h 48m
American Airlines
Tue 7/147:31 pm
ORD
- JAX
Nonstop2h 36m
American Airlines
Deal found 6/9![American Airlines logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Wed 7/86:29 pm
JAX
- STL
1 stop24h 08m
Frontier
Mon 7/134:57 pm
STL
- JAX
1 stop23h 37m
Frontier
Deal found 6/7![Frontier logo]()
$189
This Southwest deal was found by Cheapflights users on 6/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:50 pm
JAX
- MDW
Nonstop2h 25m
Southwest
Wed 7/1512:50 pm
MDW
- JAX
Nonstop2h 20m
Southwest
Deal found 6/4![Southwest logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 7/146:29 pm
JAX
- STL
1 stop15h 28m
Frontier
Sat 7/184:57 pm
STL
- JAX
1 stop23h 37m
Frontier
Deal found 6/7![Frontier logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 6/4. 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.
Fri 7/176:29 pm
JAX
- MDW
1 stop17h 38m
Frontier
Wed 7/226:05 am
MDW
- JAX
1 stop10h 29m
Frontier
Deal found 6/4![Frontier logo]()
$220
This Kiwi.com deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 6/6![Frontier logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 6/6![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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
Mon 8/34:57 pm
STL
- JAX
1 stop23h 37m
Frontier
Deal found 6/5![Frontier logo]()
$175
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 June 9, 2026.
Search for one-way flight options from Jacksonville to Illinois. Find affordable one-way fares based on user searches. Data last updated June 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 8/36:29 pm
JAX
- STL
1 stop24h 08m
Frontier
Deal found 6/9![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Sun 7/56:29 pm
JAX
- STL
1 stop15h 28m
Frontier
Deal found 6/9![Frontier logo]()
$85
This Kiwi.com deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” 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 7/36:28 pm
JAX
- STL
1 stop15h 24m
Frontier
Deal found 6/6![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 7/66:29 pm
JAX
- STL
1 stop24h 08m
Frontier
Deal found 6/9![Frontier logo]()
$87
This Trip.com deal was found by Cheapflights users on 6/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:28 pm
JAX
- STL
1 stop15h 24m
Frontier
Deal found 6/7![Frontier logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 6/4. 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.
Sat 8/16:29 pm
JAX
- STL
1 stop24h 08m
Frontier
Deal found 6/4![Frontier logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Wed 7/16:28 pm
JAX
- STL
1 stop24h 02m
Frontier
Deal found 6/7![Frontier logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Tue 8/46:29 pm
JAX
- ORD
1 stop26h 24m
Frontier
Deal found 6/8![Frontier logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” 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 8/296:28 pm
JAX
- STL
1 stop24h 02m
Frontier
Deal found 6/5![Frontier logo]()
$105
This Southwest deal was found by Cheapflights users on 6/8. 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.
Wed 8/56:15 am
JAX
- STL
Nonstop2h 10m
Southwest
Deal found 6/8![Southwest logo]()
$108
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Tue 7/217:20 am
JAX
- ORD
Nonstop2h 52m
United Airlines
Deal found 6/9![United Airlines logo]()
$109
This Southwest deal was found by Cheapflights users on 6/8. 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.
Tue 8/45:25 pm
JAX
- MDW
Nonstop2h 25m
Southwest
Deal found 6/8![Southwest logo]()
$109
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 June 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $164 (Kiwi.com) |
One-way from | $82 (Kiwi.com) |
Popular in | May |
Cheapest in | September |
Average price | $365 |
Good round-trip deal | $352 or less |
Good one-way deal | $209 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 June 9, 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
Wed 8/5
11:00 am-4:10 pm
1 stop6h 10m
Chicago Midway
Tue 8/11
1:00 pm-7:40 pm
2 stops5h 40m
$242
JacksonvilleChicago
JAX - ORD
JAXORD
Jacksonville
Tue 7/21
2:50 pm-8:33 pm
1 stop6h 43m
Chicago O'Hare Intl
Wed 7/22
8:03 am-3:09 pm
1 stop6h 06m
$247
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
Wed 7/15
6:11 pm-11:58 pm
1 stop6h 47m
Lambert-St Louis
Tue 7/21
5:32 am-1:28 pm
1 stop6h 56m
$255
JacksonvilleChicago
JAX - MDW
JAXMDW
Jacksonville
Wed 8/5
5:25 pm-6:50 pm
Nonstop2h 25m
Chicago Midway
Mon 8/10
6:45 pm-10:00 pm
Nonstop2h 15m
$256
JacksonvilleChicago
JAX - ORD
JAXORD
Jacksonville
Wed 8/5
12:02 pm-4:17 pm
1 stop5h 15m
Chicago O'Hare Intl
Mon 8/10
6:40 am-11:44 am
1 stop4h 04m
$260
JacksonvilleChicago
JAX - ORD
JAXORD
Jacksonville
Tue 7/14
4:55 pm-6:48 pm
Nonstop2h 53m
Chicago O'Hare Intl
Fri 7/17
6:19 pm-9:59 pm
Nonstop2h 40m
$279
JacksonvilleChicago
JAX - MDW
JAXMDW
Jacksonville
Tue 7/28
7:25 am-8:50 am
Nonstop2h 25m
Chicago Midway
Thu 7/30
7:20 pm-10:40 pm
Nonstop2h 20m
$279
JacksonvilleSt. Louis
JAX - STL
JAXSTL
Jacksonville
Wed 8/5
6:15 am-7:25 am
Nonstop2h 10m
Lambert-St Louis
Wed 8/5
10:15 am-4:45 pm
1 stop5h 30m
$296
JacksonvilleMoline
JAX - MLI
JAXMLI
Jacksonville
Tue 7/14
4:14 pm-10:31 pm
1 stop7h 17m
Moline Quad-City
Tue 7/21
5:56 am-12:00 pm
1 stop5h 04m
$311
JacksonvilleChicago
JAX - MDW
JAXMDW
Jacksonville
Fri 8/28
7:15 pm-10:20 pm
1 stop4h 05m
Chicago Midway
Mon 8/31
8:15 am-3:15 pm
2 stops6h 00m
$312
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-MLI
JAX-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 Jacksonville to Illinois
JAX-USIL
JAX-STL
JAX-ORD
JAX-MDW
JAX-MLI
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 June 9, 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 morning, 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 June 9, 2026.
The most flights from JAX 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 (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 79 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 June 8, 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 June 9, 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.
Overall
7.9
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
7.9
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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 June 9, 2026.
Popular flight searches
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Jacksonville to Illinois flights
Consider these flights traveling from Jacksonville to Illinois.
Top 5 airlines flying from Jacksonville to Illinois
Discover the top 5 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 June 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$121 | Average$304 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$134 | Average$228 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$179 | Average$347 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$197 | Average$340 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$238 | Average$352 | FlexibilityNo cancel fee | On-time69% |