$79+ Cheap flights from Utah 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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — ORD
Apr 15 — Apr 221
Round-trip
1 adult, Economy
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Cheapest flights from Utah to IllinoisExplore the most affordable flight options available from Utah to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 16, 2026.
Explore the most affordable flight options available from Utah to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/99:17 pm
SLC
- STL
1 stop11h 31m
Frontier
Mon 4/138:19 pm
STL
- SLC
1 stop15h 55m
Frontier
Deal found 3/13![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/12:49 pm
SLC
- STL
1 stop27h 43m
Frontier
Mon 5/48:17 pm
STL
- SLC
1 stop12h 21m
Frontier
Deal found 3/12![Frontier logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/99:17 pm
SLC
- STL
1 stop11h 31m
Frontier
Sat 4/188:17 pm
STL
- SLC
1 stop12h 44m
Frontier
Deal found 3/14![Frontier logo]()
$193
This Frontier deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/188:00 am
SLC
- STL
1 stop10h 32m
Frontier
Thu 4/239:55 pm
STL
- SLC
1 stop11h 57m
Frontier
Deal found 3/15![Frontier logo]()
$200
This Gotogate deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/209:59 pm
SLC
- STL
1 stop24h 20m
Frontier
Sat 4/258:17 pm
STL
- SLC
1 stop12h 44m
Frontier
Deal found 3/13![Frontier logo]()
$209
This CheapOair deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1512:14 am
SLC
- STL
1 stop23h 07m
Frontier
Tue 5/196:51 pm
STL
- SLC
1 stop15h 39m
Frontier
Deal found 3/13![Frontier logo]()
$211
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/255:51 pm
SLC
- ORD
2 stops10h 44m
Multiple Airlines
Mon 4/278:58 pm
ORD
- SLC
1 stop16h 01m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$221
This Expedia deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/710:54 pm
SLC
- STL
1 stop19h 29m
Frontier
Sun 5/1012:16 pm
STL
- SLC
1 stop22h 14m
Frontier
Deal found 3/16![Frontier logo]()
$221
This Trip.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/131:00 pm
SLC
- ORD
1 stop16h 20m
Frontier
Wed 4/157:21 pm
ORD
- SLC
1 stop19h 33m
Frontier
Deal found 3/12![Frontier logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/810:54 pm
SLC
- STL
1 stop19h 29m
Frontier
Mon 5/119:18 pm
STL
- SLC
2 stops19h 26m
Frontier
Deal found 3/13![Frontier logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/237:35 am
SLC
- ORD
2 stops16h 17m
Multiple Airlines
Mon 4/2710:07 pm
ORD
- SLC
1 stop14h 52m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$224
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:49 pm
SLC
- ORD
1 stop13h 01m
Frontier
Mon 4/201:12 pm
ORD
- SLC
2 stops11h 56m
Frontier
Deal found 3/11![Frontier logo]()
$225
Best flights from Utah to IllinoisDiscover carefully curated flight deals from Utah to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 16, 2026.
Discover carefully curated flight deals from Utah to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 16, 2026.
This Frontier deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/2710:59 pm
SLC
- STL
1 stop11h 20m
Frontier
Tue 3/3112:14 pm
STL
- SLC
1 stop8h 15m
Frontier
Deal found 3/11![Frontier logo]()
$245
This American Airlines deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/94:38 pm
SGU
- ORD
1 stop6h 54m
American Airlines
Mon 4/135:00 am
ORD
- SGU
1 stop7h 29m
American Airlines
Deal found 3/14![American Airlines logo]()
$296
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/207:15 am
SLC
- MLI
1 stop5h 39m
United Airlines
Sat 5/232:31 pm
MLI
- SLC
2 stops9h 13m
United Airlines
Deal found 3/12![United Airlines logo]()
$316
This Delta deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/151:55 pm
SLC
- ORD
Nonstop3h 09m
Delta
Fri 4/177:35 am
ORD
- SLC
Nonstop3h 37m
Delta
Deal found 3/11![Delta logo]()
$398
This Southwest deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/256:00 am
SLC
- MDW
2 stops7h 45m
Southwest
Tue 4/289:00 pm
MDW
- SLC
Nonstop3h 25m
Southwest
Deal found 3/12![Southwest logo]()
$413
This Alaska Airlines deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/177:03 am
SLC
- STL
1 stop7h 21m
Alaska Airlines
Sat 4/187:00 am
STL
- SLC
1 stop9h 14m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$479
This American Airlines deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/85:00 am
SLC
- CMI
1 stop8h 39m
American Airlines
Wed 4/156:58 pm
CMI
- SLC
1 stop7h 15m
American Airlines
Deal found 3/11![American Airlines logo]()
$318
This United Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/245:25 pm
SGU
- ORD
1 stop6h 19m
United Airlines
Mon 7/277:00 am
ORD
- SGU
1 stop10h 03m
United Airlines
Deal found 3/13![United Airlines logo]()
$318
This American Airlines deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:00 am
SLC
- BMI
1 stop7h 15m
American Airlines
Mon 4/202:46 pm
BMI
- SLC
1 stop8h 38m
American Airlines
Deal found 3/15![American Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2212:44 pm
SLC
- PIA
1 stop5h 09m
United Airlines
Sun 4/2610:40 am
PIA
- SLC
1 stop5h 42m
United Airlines
Deal found 3/12![United Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/105:05 pm
SLC
- BMI
1 stop5h 47m
American Airlines
Fri 4/173:45 pm
BMI
- SLC
1 stop7h 14m
American Airlines
Deal found 3/11![American Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/311:10 pm
SGU
- ORD
1 stop7h 48m
Delta
Tue 8/47:15 am
ORD
- SGU
1 stop8h 25m
Delta
Deal found 3/11![Delta logo]()
$418
This Southwest deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/26:50 am
SLC
- MDW
Nonstop3h 05m
Southwest
Mon 4/69:25 pm
MDW
- SLC
Nonstop3h 30m
Southwest
Deal found 3/12![Southwest logo]()
$421
This American Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/225:05 pm
SLC
- PIA
1 stop5h 28m
American Airlines
Sun 4/266:00 am
PIA
- SLC
1 stop7h 37m
American Airlines
Deal found 3/16![American Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/105:22 pm
SGU
- ORD
1 stop6h 08m
United Airlines
Fri 4/177:00 am
ORD
- SGU
1 stop10h 15m
United Airlines
Deal found 3/11![United Airlines logo]()
$358
This Delta deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:00 am
SLC
- MDW
1 stop5h 43m
Delta
Fri 4/176:00 am
MDW
- SLC
1 stop7h 04m
Delta
Deal found 3/11![Delta logo]()
$418
This Southwest deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2211:10 am
SLC
- STL
2 stops9h 00m
Southwest
Sat 4/256:10 am
STL
- SLC
2 stops9h 25m
Southwest
Deal found 3/14![Southwest logo]()
$425
This Alaska Airlines deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/157:34 am
SLC
- ORD
1 stop10h 26m
Alaska Airlines
Sun 7/197:20 am
ORD
- SLC
1 stop7h 39m
Alaska Airlines
Deal found 3/11![Alaska Airlines logo]()
$496
This American Airlines deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/16:20 am
SLC
- CMI
1 stop7h 57m
American Airlines
Mon 4/69:52 am
CMI
- SLC
1 stop7h 10m
American Airlines
Deal found 3/15![American Airlines logo]()
$343
This United Airlines deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/144:33 pm
SLC
- MLI
1 stop5h 29m
United Airlines
Sat 4/188:54 am
MLI
- SLC
2 stops13h 38m
United Airlines
Deal found 3/11![United Airlines logo]()
$396
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/178:45 pm
SLC
- STL
Nonstop2h 51m
Delta
Sun 7/267:30 am
STL
- SLC
Nonstop3h 16m
Delta
Deal found 3/12![Delta logo]()
$439
This Southwest deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/301:10 pm
SLC
- ORD
2 stops9h 45m
Southwest
Thu 5/72:40 pm
ORD
- SLC
2 stops8h 45m
Southwest
Deal found 3/15![Southwest logo]()
$447
This Alaska Airlines deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/511:53 am
SLC
- ORD
1 stop11h 02m
Alaska Airlines
Sun 6/79:00 am
ORD
- SLC
1 stop11h 07m
Alaska Airlines
Deal found 3/14![Alaska Airlines logo]()
$506
This United Airlines deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/142:35 pm
SLC
- PIA
1 stop5h 44m
United Airlines
Sat 4/185:35 pm
PIA
- SLC
1 stop6h 35m
United Airlines
Deal found 3/11![United Airlines logo]()
$399
This American Airlines deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/205:05 pm
SLC
- MLI
1 stop5h 49m
American Airlines
Sat 5/234:42 pm
MLI
- SLC
1 stop8h 54m
American Airlines
Deal found 3/14![American Airlines logo]()
$367
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/66:55 am
SLC
- ORD
2 stops10h 55m
Southwest
Sat 5/97:00 am
ORD
- SLC
2 stops11h 25m
Southwest
Deal found 3/13![Southwest logo]()
$447
This Delta deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/155:20 pm
SLC
- STL
1 stop4h 54m
Delta
Sun 4/197:00 am
STL
- SLC
Nonstop3h 19m
Delta
Deal found 3/11![Delta logo]()
$449
This United Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/315:22 pm
SGU
- ORD
1 stop6h 08m
United Airlines
Sat 4/410:49 am
ORD
- SGU
1 stop8h 27m
United Airlines
Deal found 3/16![United Airlines logo]()
$405
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/131:20 pm
SLC
- ORD
2 stops9h 35m
Southwest
Tue 5/1911:55 am
ORD
- SLC
2 stops9h 45m
Southwest
Deal found 3/13![Southwest logo]()
$447
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1811:15 am
SLC
- STL
Nonstop2h 46m
Delta
Thu 4/232:20 pm
STL
- SLC
Nonstop3h 20m
Delta
Deal found 3/12![Delta logo]()
$459
Last-minute flights from Utah to IllinoisDiscover last-minute flight deals from Utah to Illinois. Data last updated March 16, 2026 and is based on user searches.
Discover last-minute flight deals from Utah to Illinois. Data last updated March 16, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/71:35 pm
SLC
- STL
1 stop19h 13m
Frontier
Wed 4/88:16 pm
STL
- SLC
1 stop12h 49m
Frontier
Deal found 3/11![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/79:17 pm
SLC
- STL
1 stop11h 31m
Frontier
Mon 4/138:19 pm
STL
- SLC
1 stop15h 55m
Frontier
Deal found 3/11![Frontier logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/79:17 pm
SLC
- STL
1 stop11h 31m
Frontier
Fri 4/108:16 pm
STL
- SLC
1 stop12h 49m
Frontier
Deal found 3/11![Frontier logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/99:17 pm
SLC
- STL
1 stop11h 31m
Frontier
Mon 4/138:19 pm
STL
- SLC
1 stop15h 55m
Frontier
Deal found 3/11![Frontier logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/99:17 pm
SLC
- STL
1 stop11h 31m
Frontier
Fri 4/108:16 pm
STL
- SLC
1 stop15h 38m
Frontier
Deal found 3/11![Frontier logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/99:17 pm
SLC
- STL
1 stop11h 31m
Frontier
Sat 4/188:17 pm
STL
- SLC
1 stop12h 44m
Frontier
Deal found 3/14![Frontier logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/109:17 pm
SLC
- STL
1 stop11h 31m
Frontier
Mon 4/138:19 pm
STL
- SLC
1 stop15h 55m
Frontier
Deal found 3/11![Frontier logo]()
$181
This Trip.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/131:00 pm
SLC
- ORD
1 stop16h 20m
Frontier
Wed 4/157:21 pm
ORD
- SLC
1 stop19h 33m
Frontier
Deal found 3/12![Frontier logo]()
$222
This Frontier deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/188:00 am
SLC
- STL
1 stop10h 32m
Frontier
Thu 4/239:55 pm
STL
- SLC
1 stop11h 57m
Frontier
Deal found 3/15![Frontier logo]()
$200
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/237:35 am
SLC
- ORD
2 stops16h 17m
Multiple Airlines
Mon 4/2710:07 pm
ORD
- SLC
1 stop14h 52m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$224
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/242:49 pm
SLC
- STL
1 stop27h 43m
Frontier
Mon 4/278:17 pm
STL
- SLC
1 stop15h 57m
Frontier
Deal found 3/11![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/255:51 pm
SLC
- ORD
2 stops10h 44m
Multiple Airlines
Mon 4/278:58 pm
ORD
- SLC
1 stop16h 01m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$221
One-way flights from Utah to IllinoisSearch for one-way flight options from Utah to Illinois. Find affordable one-way fares based on user searches. Data last updated March 16, 2026.
Search for one-way flight options from Utah to Illinois. Find affordable one-way fares based on user searches. Data last updated March 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/99:17 pm
SLC
- STL
1 stop11h 31m
Frontier
Deal found 3/12![Frontier logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/810:54 pm
SLC
- STL
1 stop19h 29m
Frontier
Deal found 3/12![Frontier logo]()
$95
This Frontier deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/91:32 pm
SLC
- STL
1 stop5h 51m
Frontier
Deal found 3/13![Frontier logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1010:54 pm
SLC
- STL
1 stop19h 29m
Frontier
Deal found 3/13![Frontier logo]()
$102
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1010:49 am
SLC
- STL
1 stop21h 59m
Frontier
Deal found 3/12![Frontier logo]()
$103
This Kiwi.com deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:49 pm
SLC
- STL
1 stop22h 32m
Frontier
Deal found 3/14![Frontier logo]()
$104
This Frontier deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/167:35 am
SLC
- STL
1 stop10h 46m
Frontier
Deal found 3/14![Frontier logo]()
$106
This CheapOair deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/149:59 pm
SLC
- STL
1 stop24h 20m
Frontier
Deal found 3/14![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/127:35 am
SLC
- STL
1 stop25h 13m
Frontier
Deal found 3/14![Frontier logo]()
$114
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/124:29 pm
SLC
- STL
2 stops15h 26m
Frontier
Deal found 3/13![Frontier logo]()
$118
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/199:14 pm
SLC
- ORD
1 stop26h 43m
Frontier
Deal found 3/12![Frontier logo]()
$142
This Super.com deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/91:47 pm
SLC
- ORD
1 stop8h 49m
Frontier
Deal found 3/15![Frontier logo]()
$143
Find flight deals from Utah to Illinois
Keep the following information in mind while searching for Utah to Illinois flight deals. Data was last updated March 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $159 (Kiwi.com) |
One-way from | $79 (Kiwi.com) |
Popular in | January |
Cheapest in | September |
Average price | $452 |
Good round-trip deal | $414 or less |
Good one-way deal | $212 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Utah 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 March 16, 2026.
Use the filters below to find and compare flights from Utah to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Fri 3/27
10:59 pm-11:19 am
1 stop11h 20m
Lambert-St Louis
Tue 3/31
12:14 pm-7:29 pm
1 stop8h 15m
$245
Saint GeorgeChicago
SGU - ORD
SGUORD
Saint George
Thu 4/9
4:38 pm-12:32 am
1 stop6h 54m
Chicago O'Hare Intl
Mon 4/13
5:00 am-11:29 am
1 stop7h 29m
$296
Salt Lake CityMoline
SLC - MLI
SLCMLI
Salt Lake City
Wed 5/20
7:15 am-1:54 pm
1 stop5h 39m
Moline Quad-City
Sat 5/23
2:31 pm-10:44 pm
2 stops9h 13m
$316
Salt Lake CityChampaign
SLC - CMI
SLCCMI
Salt Lake City
Wed 4/8
5:00 am-2:39 pm
1 stop8h 39m
Champaign University-Willard
Wed 4/15
6:58 pm-1:13 am
1 stop7h 15m
$318
Saint GeorgeChicago
SGU - ORD
SGUORD
Saint George
Fri 7/24
5:25 pm-12:44 am
1 stop6h 19m
Chicago O'Hare Intl
Mon 7/27
7:00 am-4:03 pm
1 stop10h 03m
$318
Salt Lake CityBloomington
SLC - BMI
SLCBMI
Salt Lake City
Wed 4/15
7:00 am-3:15 pm
1 stop7h 15m
Bloomington-Normal
Mon 4/20
2:46 pm-10:24 pm
1 stop8h 38m
$319
Salt Lake CityPeoria
SLC - PIA
SLCPIA
Salt Lake City
Wed 4/22
12:44 pm-6:53 pm
1 stop5h 09m
Greater Peoria
Sun 4/26
10:40 am-3:22 pm
1 stop5h 42m
$319
Salt Lake CityBloomington
SLC - BMI
SLCBMI
Salt Lake City
Fri 4/10
5:05 pm-11:52 pm
1 stop5h 47m
Bloomington-Normal
Fri 4/17
3:45 pm-9:59 pm
1 stop7h 14m
$319
Salt Lake CityPeoria
SLC - PIA
SLCPIA
Salt Lake City
Wed 4/22
5:05 pm-11:33 pm
1 stop5h 28m
Greater Peoria
Sun 4/26
6:00 am-12:37 pm
1 stop7h 37m
$319
Salt Lake CityChampaign
SLC - CMI
SLCCMI
Salt Lake City
Wed 4/1
6:20 am-3:17 pm
1 stop7h 57m
Champaign University-Willard
Mon 4/6
9:52 am-4:02 pm
1 stop7h 10m
$343
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Utah to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Utah with our price prediction graph.
SLC-STL
SLC-ORD
SLC-MDW
SLC-CMI
SLC-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 Utah to Illinois
USUT-USIL
SLC-STL
SLC-ORD
SLC-MDW
SLC-CMI
What is the cheapest month to book a flight from Utah to Illinois?
Currently, April is the cheapest month in which you can book a flight from Utah to Illinois (average of $97). Flying from Utah to Illinois in January is currently the most expensive (average of $252). 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 UT to IL?
Find hourly flight availability from Utah 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 March 16, 2026.
One of the essential ways to save on airfare from Utah to Illinois is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 40% on airfare.
What is the cheapest day to fly from Utah to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Utah to Illinois. Price data was last updated on March 14, 2026.
Travelers seeking maximum savings on their Utah to Illinois flight should consider departing on Friday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Utah to Illinois
Explore weekly flight availability from Utah 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 March 16, 2026.
The most flights from USUT to USIL are scheduled on a Friday (34 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (23 on average).
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 March 16, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from Utah to Illinois to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Related info for your journey
Find useful and relevant information for your journey from Utah 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 Utah to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Utah to Illinois by cabin class
Find flights from Utah to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Utah and Illinois flights
Browse other Utah and Illinois flight options. Last updated on March 16, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Illinois
Find the right flight back to Utah after your stay in Illinois
Utah to Illinois flights
Consider these flights traveling from Utah to Illinois.
Top 7 airlines flying from Utah to Illinois
Discover the top 7 airlines that operate flights from Utah 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 March 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$75 | Average$200 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$90 | Average$197 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$97 | Average$240 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$168 | Average$427 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$208 | Average$440 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$227 | Average$479 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$290 | Average$464 | FlexibilityNo cancel fee | On-time63% |