$60+ 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 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — ORD
Mar 25 — Apr 11
1 adult, Economy
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Find cheap flights from Utah to Illinois with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Utah to Illinois
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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 February 23, 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 February 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 2/19![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 3/139:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Mon 3/168:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/22![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” 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 3/2611:49 am
SLC
- STL
1 stop21h 00m
Frontier
Mon 4/138:19 pm
STL
- SLC
1 stop15h 55m
Frontier
Deal found 2/20![Frontier logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” 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 3/69:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Mon 3/168:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/20![Frontier logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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 3/129:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Mon 3/168:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/21![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” 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 3/59:59 pm
SLC
- STL
1 stop10h 50m
Frontier
Mon 3/168:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/20![Frontier logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” 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 3/69:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Wed 3/118:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/20![Frontier logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” 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 3/59:59 pm
SLC
- STL
1 stop10h 50m
Frontier
Wed 3/118:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/20![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 3/249:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Tue 3/3112:14 pm
STL
- SLC
1 stop8h 15m
Frontier
Deal found 2/22![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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 3/59:59 pm
SLC
- STL
1 stop10h 50m
Frontier
Sat 3/78:12 pm
STL
- SLC
1 stop11h 43m
Frontier
Deal found 2/21![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 3/319:14 pm
SLC
- STL
1 stop11h 34m
Frontier
Mon 4/612:22 pm
STL
- SLC
1 stop23h 42m
Frontier
Deal found 2/22![Frontier logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 3/319:14 pm
SLC
- STL
1 stop11h 34m
Frontier
Wed 4/88:16 pm
STL
- SLC
1 stop12h 49m
Frontier
Deal found 2/22![Frontier logo]()
$170
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 February 23, 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 February 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 2/19![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/79:51 am
SLC
- ORD
1 stop18h 59m
Multiple Airlines
Thu 5/145:11 am
ORD
- SLC
2 stops27h 50m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$220
This United Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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 8/55:05 am
SGU
- ORD
1 stop5h 39m
United Airlines
Sun 8/95:00 am
ORD
- SGU
1 stop6h 19m
United Airlines
Deal found 2/21![United Airlines logo]()
$278
This American Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/75:26 am
SLC
- MLI
1 stop6h 55m
American Airlines
Wed 3/112:02 pm
MLI
- SLC
1 stop8h 35m
American Airlines
Deal found 2/20![American Airlines logo]()
$309
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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 4/206:00 am
SLC
- ORD
1 stop5h 45m
Delta
Tue 4/217:10 pm
ORD
- SLC
Nonstop3h 33m
Delta
Deal found 2/21![Delta logo]()
$343
This Southwest deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 3/187:50 am
SLC
- MDW
2 stops7h 20m
Southwest
Wed 3/188:40 pm
MDW
- SLC
Nonstop3h 30m
Southwest
Deal found 2/19![Southwest logo]()
$348
This Orbitz deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:57 am
SLC
- STL
1 stop10h 03m
Frontier
Thu 4/239:55 pm
STL
- SLC
1 stop11h 57m
Frontier
Deal found 2/19![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 3/129:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Tue 3/178:06 pm
STL
- SLC
1 stop24h 23m
Frontier
Deal found 2/19![Frontier logo]()
$185
This Frontier deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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.
Mon 5/1110:33 pm
SLC
- ORD
1 stop7h 14m
Frontier
Thu 5/145:11 am
ORD
- SLC
1 stop12h 38m
Frontier
Deal found 2/19![Frontier logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 5/204:01 pm
SLC
- ORD
1 stop12h 49m
Multiple Airlines
Sat 5/239:48 pm
ORD
- SLC
1 stop12h 43m
Multiple Airlines
Deal found 2/19![Multiple Airlines logo]()
$276
This Kiwi.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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
- STL
1 stop11h 35m
Frontier
Thu 3/268:06 pm
STL
- SLC
1 stop14h 09m
Frontier
Deal found 2/19![Frontier logo]()
$238
This United Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 3/187:30 am
SLC
- ORD
Nonstop3h 14m
United Airlines
Wed 3/187:55 pm
ORD
- SLC
Nonstop3h 46m
United Airlines
Deal found 2/19![United Airlines logo]()
$317
This American Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 3/316:20 am
SLC
- ORD
Nonstop3h 19m
American Airlines
Thu 4/26:54 pm
ORD
- SLC
Nonstop3h 43m
American Airlines
Deal found 2/19![American Airlines logo]()
$333
This Southwest deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” 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 4/217:45 am
SLC
- MDW
Nonstop3h 00m
Southwest
Sun 4/269:40 pm
MDW
- SLC
Nonstop3h 25m
Southwest
Deal found 2/20![Southwest logo]()
$349
This Frontier deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 3/1210:33 pm
SLC
- ORD
1 stop6h 35m
Frontier
Sun 3/159:08 pm
ORD
- SLC
1 stop13h 07m
Frontier
Deal found 2/19![Frontier logo]()
$244
This Delta deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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 3/246:00 am
SLC
- MDW
1 stop5h 29m
Delta
Mon 3/301:10 pm
MDW
- SLC
1 stop7h 39m
Delta
Deal found 2/21![Delta logo]()
$369
This Southwest deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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
Thu 4/99:45 pm
MDW
- SLC
Nonstop3h 25m
Southwest
Deal found 2/19![Southwest logo]()
$349
This United Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 4/181:12 pm
SLC
- MLI
1 stop7h 20m
United Airlines
Tue 4/216:30 am
MLI
- SLC
1 stop6h 13m
United Airlines
Deal found 2/19![United Airlines logo]()
$351
This American Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 4/245:06 pm
SLC
- ORD
Nonstop3h 24m
American Airlines
Sat 4/255:00 am
ORD
- SLC
1 stop6h 34m
American Airlines
Deal found 2/19![American Airlines logo]()
$359
This Southwest deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 4/82:00 pm
SLC
- MDW
1 stop8h 20m
Southwest
Mon 4/134:35 pm
MDW
- SLC
2 stops8h 30m
Southwest
Deal found 2/19![Southwest logo]()
$358
This United Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 4/217:20 am
SLC
- PIA
1 stop8h 24m
United Airlines
Sat 4/258:50 am
PIA
- SLC
1 stop5h 29m
United Airlines
Deal found 2/19![United Airlines logo]()
$359
This CheapOair deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 5/89:59 pm
SLC
- MDW
1 stop17h 14m
Frontier
Sun 5/106:15 am
MDW
- SLC
1 stop9h 40m
Frontier
Deal found 2/19![Frontier logo]()
$271
This Delta deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 6/98:45 pm
SLC
- STL
Nonstop2h 51m
Delta
Sat 6/136:59 pm
STL
- SLC
Nonstop3h 14m
Delta
Deal found 2/19![Delta logo]()
$399
This American Airlines deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/286:20 am
SLC
- PIA
1 stop4h 58m
American Airlines
Sat 4/45:15 am
PIA
- SLC
1 stop8h 32m
American Airlines
Deal found 2/22![American Airlines logo]()
$385
This Southwest deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/169:05 pm
SLC
- MDW
1 stop6h 55m
Southwest
Sat 3/219:25 pm
MDW
- SLC
Nonstop3h 30m
Southwest
Deal found 2/19![Southwest logo]()
$359
This Delta deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 3/258:35 pm
SLC
- STL
Nonstop2h 46m
Delta
Tue 3/317:15 am
STL
- SLC
Nonstop3h 22m
Delta
Deal found 2/22![Delta logo]()
$399
This United Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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 8/65:25 pm
SGU
- ORD
1 stop6h 19m
United Airlines
Sun 8/95:00 am
ORD
- SGU
1 stop6h 19m
United Airlines
Deal found 2/21![United Airlines logo]()
$368
This Delta deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 5/99:40 am
SLC
- STL
Nonstop2h 52m
Delta
Mon 5/112:27 pm
STL
- SLC
Nonstop3h 13m
Delta
Deal found 2/22![Delta logo]()
$399
This Southwest deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 4/86:55 am
SLC
- ORD
2 stops10h 55m
Southwest
Mon 4/138:00 am
ORD
- SLC
2 stops10h 05m
Southwest
Deal found 2/19![Southwest logo]()
$363
This United Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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 8/45:05 am
SGU
- ORD
1 stop5h 39m
United Airlines
Sun 8/95:00 am
ORD
- SGU
1 stop6h 19m
United Airlines
Deal found 2/21![United Airlines logo]()
$368
Last-minute flights from Utah to IllinoisDiscover last-minute flight deals from Utah to Illinois. Data last updated February 23, 2026 and is based on user searches.
Discover last-minute flight deals from Utah to Illinois. Data last updated February 23, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” 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 3/59:59 pm
SLC
- STL
1 stop10h 50m
Frontier
Mon 3/168:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/20![Frontier logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” 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 3/59:59 pm
SLC
- STL
1 stop10h 50m
Frontier
Wed 3/118:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/20![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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 3/59:59 pm
SLC
- STL
1 stop10h 50m
Frontier
Sat 3/78:12 pm
STL
- SLC
1 stop11h 43m
Frontier
Deal found 2/21![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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 3/59:59 pm
SLC
- STL
1 stop10h 50m
Frontier
Fri 3/68:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/21![Frontier logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” 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 3/69:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Mon 3/168:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/20![Frontier logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” 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 3/69:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Wed 3/118:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/20![Frontier logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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 3/129:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Mon 3/168:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/21![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 3/139:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Mon 3/168:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/22![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 3/249:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Tue 3/3112:14 pm
STL
- SLC
1 stop8h 15m
Frontier
Deal found 2/22![Frontier logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” 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 3/2611:49 am
SLC
- STL
1 stop21h 00m
Frontier
Mon 4/138:19 pm
STL
- SLC
1 stop15h 55m
Frontier
Deal found 2/20![Frontier logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 3/319:14 pm
SLC
- STL
1 stop11h 34m
Frontier
Mon 4/612:22 pm
STL
- SLC
1 stop23h 42m
Frontier
Deal found 2/22![Frontier logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 3/319:14 pm
SLC
- STL
1 stop11h 34m
Frontier
Wed 4/88:16 pm
STL
- SLC
1 stop12h 49m
Frontier
Deal found 2/22![Frontier logo]()
$170
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 February 23, 2026.
Search for one-way flight options from Utah to Illinois. Find affordable one-way fares based on user searches. Data last updated February 23, 2026.
This Trip.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” 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.
Tue 3/319:14 pm
SLC
- STL
1 stop11h 34m
Frontier
Deal found 2/20![Frontier logo]()
$60
This Kiwi.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” 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 5/98:00 am
SLC
- STL
1 stop10h 12m
Frontier
Deal found 2/19![Frontier logo]()
$63
This Kiwi.com deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 5/89:59 pm
SLC
- STL
1 stop20h 13m
Frontier
Deal found 2/22![Frontier logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 4/1710:13 pm
SLC
- STL
1 stop20h 19m
Frontier
Deal found 2/22![Frontier logo]()
$66
This Trip.com deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” 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.
Tue 4/79:17 pm
SLC
- STL
1 stop11h 31m
Frontier
Deal found 2/21![Frontier logo]()
$69
This Trip.com deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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.
Thu 4/99:17 pm
SLC
- STL
1 stop11h 31m
Frontier
Deal found 2/22![Frontier logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 4/156:19 pm
SLC
- STL
1 stop24h 02m
Frontier
Deal found 2/22![Frontier logo]()
$76
This Kiwi.com deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 4/192:53 pm
SLC
- STL
1 stop27h 39m
Frontier
Deal found 2/22![Frontier logo]()
$78
This Kiwi.com deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” 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 3/118:30 pm
SLC
- MLI
1 stop13h 57m
Multiple Airlines
Deal found 2/22![Multiple Airlines logo]()
$119
This Kiwi.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” 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 3/1510:33 pm
SLC
- ORD
2 stops25h 24m
Frontier
Deal found 2/20![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:35 am
SLC
- MDW
3 stops28h 25m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” 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 4/229:59 pm
SLC
- ORD
2 stops25h 53m
Frontier
Deal found 2/20![Frontier logo]()
$132
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 February 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $144 (Kiwi.com) |
One-way from | $60 (Trip.com) |
Popular in | January |
Cheapest in | September |
Average price | $470 |
Good round-trip deal | $413 or less |
Good one-way deal | $248 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 February 23, 2026.
Use the filters below to find and compare flights from Utah to Illinois that are best for you.
Fly from
Utah
Fly to
Illinois
Route
Depart
Return
Price
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Tue 4/7
9:17 pm-9:48 am
1 stop11h 31m
Lambert-St Louis
Mon 4/13
8:19 pm-11:14 am
1 stop15h 55m
$144
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Thu 4/16
9:57 am-9:00 pm
1 stop10h 03m
Lambert-St Louis
Thu 4/23
9:55 pm-8:52 am
1 stop11h 57m
$180
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Thu 3/12
9:14 pm-9:49 am
1 stop11h 35m
Lambert-St Louis
Tue 3/17
8:06 pm-7:29 pm
1 stop24h 23m
$185
Salt Lake CityChicago
SLC - ORD
SLCORD
Salt Lake City
Mon 5/11
10:33 pm-6:47 am
1 stop7h 14m
Chicago O'Hare Intl
Thu 5/14
5:11 am-4:49 pm
1 stop12h 38m
$190
Salt Lake CityChicago
SLC - ORD
SLCORD
Salt Lake City
Thu 5/7
9:51 am-5:50 am
1 stop18h 59m
Chicago O'Hare Intl
Thu 5/14
5:11 am-8:01 am
2 stops27h 50m
$220
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Thu 3/19
9:14 pm-9:49 am
1 stop11h 35m
Lambert-St Louis
Thu 3/26
8:06 pm-9:15 am
1 stop14h 09m
$238
Salt Lake CityChicago
SLC - ORD
SLCORD
Salt Lake City
Thu 3/12
10:33 pm-6:08 am
1 stop6h 35m
Chicago O'Hare Intl
Sun 3/15
9:08 pm-9:15 am
1 stop13h 07m
$244
Salt Lake CityChicago
SLC - MDW
SLCMDW
Salt Lake City
Fri 5/8
9:59 pm-4:13 pm
1 stop17h 14m
Chicago Midway
Sun 5/10
6:15 am-2:55 pm
1 stop9h 40m
$271
Salt Lake CityChicago
SLC - ORD
SLCORD
Salt Lake City
Wed 5/20
4:01 pm-5:50 am
1 stop12h 49m
Chicago O'Hare Intl
Sat 5/23
9:48 pm-9:31 am
1 stop12h 43m
$276
Saint GeorgeChicago
SGU - ORD
SGUORD
Saint George
Wed 8/5
5:05 am-11:44 am
1 stop5h 39m
Chicago O'Hare Intl
Sun 8/9
5:00 am-10:19 am
1 stop6h 19m
$278
Showing 1-10 of 60 results
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
SGU-ORD
SLC-MLI
SLC-MDW
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
SGU-ORD
SLC-MLI
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 $87). 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 February 23, 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 55% 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 February 21, 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 February 23, 2026.
The most flights from USUT to USIL are scheduled on a Friday (40 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (21 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 February 23, 2026.
Peruse reviews from past customers who have flown with Southwest, Delta, and United 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.
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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 February 23, 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 February 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$75 | Average$200 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$77 | Average$238 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$90 | Average$164 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$168 | Average$425 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$203 | Average$434 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$227 | Average$485 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$290 | Average$471 | FlexibilityNo cancel fee | On-time63% |