$47+ 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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — ORD
Mar 2 — Mar 91
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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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 January 31, 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 January 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 3/98:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 1/31![Frontier logo]()
$123
This Frontier deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/258:00 am
SLC
- STL
1 stop6h 53m
Frontier
Sat 2/282:51 pm
STL
- SLC
1 stop10h 23m
Frontier
Deal found 1/30![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/59:59 pm
SLC
- STL
1 stop10h 50m
Frontier
Mon 3/98:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 1/30![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/89:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Wed 3/118:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 1/30![Frontier logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/47:30 pm
SLC
- STL
1 stop24h 36m
Frontier
Sat 3/78:12 pm
STL
- SLC
1 stop11h 43m
Frontier
Deal found 1/28![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/188:00 am
SLC
- STL
1 stop6h 53m
Frontier
Fri 2/201:59 pm
STL
- SLC
1 stop11h 15m
Frontier
Deal found 1/29![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/910:59 pm
SLC
- STL
2 stops33h 50m
Frontier
Wed 3/118:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 1/30![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/139:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Mon 3/238:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 1/29![Frontier logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/47:30 pm
SLC
- STL
1 stop24h 36m
Frontier
Mon 3/98:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 1/28![Frontier logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/59:59 pm
SLC
- STL
1 stop10h 50m
Frontier
Tue 3/108:06 pm
STL
- SLC
1 stop13h 54m
Frontier
Deal found 1/30![Frontier logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1610:59 pm
SLC
- STL
1 stop12h 16m
Frontier
Mon 3/238:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 1/30![Frontier logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/87:35 am
SLC
- ORD
1 stop5h 44m
Frontier
Mon 4/132:29 pm
ORD
- SLC
1 stop21h 45m
Frontier
Deal found 1/30![Frontier logo]()
$183
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 January 31, 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 January 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 3/98:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 1/31![Frontier logo]()
$123
This Alaska Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 2/256:20 am
SLC
- ORD
1 stop9h 13m
Alaska Airlines
Mon 3/23:07 pm
ORD
- SLC
1 stop9h 38m
Alaska Airlines
Deal found 1/31![Alaska Airlines logo]()
$235
This United Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/94:20 pm
SLC
- MLI
1 stop5h 25m
United Airlines
Sat 5/163:47 pm
MLI
- SLC
1 stop8h 00m
United Airlines
Deal found 1/30![United Airlines logo]()
$271
This American Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/125:04 pm
SLC
- MLI
1 stop5h 42m
American Airlines
Tue 5/196:35 pm
MLI
- SLC
1 stop7h 21m
American Airlines
Deal found 1/29![American Airlines logo]()
$271
This Frontier deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/258:00 am
SLC
- STL
1 stop6h 53m
Frontier
Sat 2/282:51 pm
STL
- SLC
1 stop10h 23m
Frontier
Deal found 1/30![Frontier logo]()
$138
This Delta deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/61:58 pm
SLC
- ORD
Nonstop3h 09m
Delta
Sat 5/97:20 am
ORD
- SLC
1 stop14h 58m
Delta
Deal found 1/28![Delta logo]()
$330
This Southwest deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 3/184:35 pm
SLC
- MDW
1 stop6h 30m
Southwest
Wed 3/2510:15 am
MDW
- SLC
1 stop7h 00m
Southwest
Deal found 1/31![Southwest logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/37:35 am
SLC
- ORD
1 stop25h 15m
Frontier
Thu 5/710:55 am
ORD
- SLC
1 stop22h 06m
Frontier
Deal found 1/30![Frontier logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/108:01 pm
SLC
- STL
1 stop16h 57m
Frontier
Fri 3/68:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 1/28![Frontier logo]()
$192
This Alaska Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 2/276:20 am
SLC
- ORD
1 stop9h 13m
Alaska Airlines
Mon 3/23:07 pm
ORD
- SLC
1 stop9h 38m
Alaska Airlines
Deal found 1/31![Alaska Airlines logo]()
$265
This United Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/165:22 pm
SGU
- ORD
1 stop6h 08m
United Airlines
Sun 4/197:00 am
ORD
- SGU
1 stop7h 11m
United Airlines
Deal found 1/29![United Airlines logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/1510:33 pm
SLC
- STL
2 stops10h 16m
Frontier
Mon 3/238:12 pm
STL
- SLC
1 stop15h 42m
Frontier
Deal found 1/29![Frontier logo]()
$211
This American Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 2/2111:06 am
SLC
- PIA
2 stops11h 19m
American Airlines
Sat 2/282:50 pm
PIA
- SLC
1 stop8h 12m
American Airlines
Deal found 1/31![American Airlines logo]()
$284
This Alaska Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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.
Sat 2/216:20 am
SLC
- ORD
1 stop9h 13m
Alaska Airlines
Fri 2/278:20 am
ORD
- SLC
1 stop16h 25m
Alaska Airlines
Deal found 1/31![Alaska Airlines logo]()
$290
This Frontier deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 3/1610:59 pm
SLC
- STL
1 stop12h 16m
Frontier
Mon 3/2312:14 pm
STL
- SLC
1 stop6h 46m
Frontier
Deal found 1/31![Frontier logo]()
$218
This United Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:15 am
SLC
- PIA
1 stop5h 52m
United Airlines
Mon 4/271:20 pm
PIA
- SLC
2 stops8h 46m
United Airlines
Deal found 1/29![United Airlines logo]()
$312
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1911:25 am
SGU
- ORD
1 stop5h 40m
Delta
Sun 3/227:20 am
ORD
- SGU
1 stop8h 19m
Delta
Deal found 1/29![Delta logo]()
$348
This Southwest deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/251:10 pm
SLC
- MDW
1 stop8h 35m
Southwest
Tue 4/289:00 pm
MDW
- SLC
Nonstop3h 25m
Southwest
Deal found 1/29![Southwest logo]()
$348
This Priceline deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/118:00 am
SLC
- STL
1 stop4h 58m
Frontier
Wed 3/118:12 pm
STL
- SLC
1 stop5h 02m
Frontier
Deal found 1/29![Frontier logo]()
$220
This CheapOair deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2911:56 am
SLC
- ORD
2 stops17h 44m
Alaska Airlines
Tue 5/58:50 am
ORD
- SLC
1 stop12h 58m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$293
This American Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/1412:15 pm
SGU
- ORD
2 stops8h 45m
American Airlines
Wed 2/182:58 pm
ORD
- SGU
1 stop7h 14m
American Airlines
Deal found 1/30![American Airlines logo]()
$324
This United Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/141:47 pm
SGU
- ORD
1 stop6h 42m
United Airlines
Wed 2/189:00 am
ORD
- SGU
1 stop8h 06m
United Airlines
Deal found 1/30![United Airlines logo]()
$318
This Southwest deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/75:00 am
SLC
- MDW
1 stop6h 00m
Southwest
Tue 3/108:40 pm
MDW
- SLC
Nonstop3h 30m
Southwest
Deal found 1/29![Southwest logo]()
$357
This Alaska Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/116:08 pm
SLC
- ORD
1 stop18h 05m
Alaska Airlines
Thu 5/147:59 pm
ORD
- SLC
1 stop16h 17m
Alaska Airlines
Deal found 1/30![Alaska Airlines logo]()
$297
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/188:00 am
SLC
- STL
1 stop6h 53m
Frontier
Wed 2/188:17 pm
STL
- SLC
2 stops16h 08m
Frontier
Deal found 1/30![Frontier logo]()
$228
This Southwest deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/81:10 pm
SLC
- MDW
Nonstop3h 00m
Southwest
Mon 4/135:00 pm
MDW
- SLC
1 stop6h 15m
Southwest
Deal found 1/30![Southwest logo]()
$357
This Delta deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/163:20 pm
SGU
- ORD
1 stop4h 58m
Delta
Sun 4/198:50 am
ORD
- SGU
2 stops9h 02m
Delta
Deal found 1/29![Delta logo]()
$410
This CheapOair deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2411:49 am
SLC
- STL
1 stop21h 00m
Frontier
Tue 4/144:55 pm
STL
- SLC
1 stop28h 34m
Frontier
Deal found 1/29![Frontier logo]()
$237
This United Airlines deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/74:00 pm
SLC
- ORD
Nonstop3h 12m
United Airlines
Tue 3/107:55 pm
ORD
- SLC
Nonstop3h 46m
United Airlines
Deal found 1/29![United Airlines logo]()
$347
This American Airlines deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2411:03 am
SLC
- EVV
2 stops11h 43m
American Airlines
Sat 3/283:50 pm
EVV
- SLC
1 stop6h 04m
American Airlines
Deal found 1/30![American Airlines logo]()
$384
Last-minute flights from Utah to IllinoisDiscover last-minute flight deals from Utah to Illinois. Data last updated January 31, 2026 and is based on user searches.
Discover last-minute flight deals from Utah to Illinois. Data last updated January 31, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/47:30 pm
SLC
- STL
1 stop24h 36m
Frontier
Sat 3/78:12 pm
STL
- SLC
1 stop11h 43m
Frontier
Deal found 1/28![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/47:30 pm
SLC
- STL
1 stop24h 36m
Frontier
Mon 3/98:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 1/28![Frontier logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/47:30 pm
SLC
- STL
1 stop24h 36m
Frontier
Wed 3/45:18 pm
STL
- SLC
2 stops19h 52m
Frontier
Deal found 1/28![Frontier logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/47:30 pm
SLC
- STL
1 stop24h 36m
Frontier
Sun 3/86:19 pm
STL
- SLC
1 stop15h 56m
Frontier
Deal found 1/28![Frontier logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/77:49 pm
SLC
- STL
1 stop14h 29m
Frontier
Wed 3/45:18 pm
STL
- SLC
1 stop16h 26m
Frontier
Deal found 1/28![Frontier logo]()
$179
This CheapOair deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/122:13 pm
SLC
- STL
1 stop21h 56m
Frontier
Mon 2/231:54 pm
STL
- SLC
1 stop11h 20m
Frontier
Deal found 1/29![Frontier logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/188:00 am
SLC
- STL
1 stop6h 53m
Frontier
Fri 2/201:59 pm
STL
- SLC
1 stop11h 15m
Frontier
Deal found 1/29![Frontier logo]()
$158
This CheapOair deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/192:13 pm
SLC
- STL
1 stop21h 56m
Frontier
Mon 2/231:54 pm
STL
- SLC
1 stop11h 20m
Frontier
Deal found 1/30![Frontier logo]()
$175
This Frontier deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 2/239:15 am
SLC
- ORD
1 stop12h 15m
Frontier
Sat 2/287:55 am
ORD
- SLC
1 stop8h 50m
Frontier
Deal found 1/31![Frontier logo]()
$190
This Frontier deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/258:00 am
SLC
- STL
1 stop6h 53m
Frontier
Sat 2/282:51 pm
STL
- SLC
1 stop10h 23m
Frontier
Deal found 1/30![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/269:59 pm
SLC
- ORD
1 stop14h 26m
Multiple Airlines
Thu 3/57:23 pm
ORD
- SLC
2 stops37h 32m
Multiple Airlines
Deal found 1/29![Multiple Airlines logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/284:20 pm
SLC
- STL
2 stops37h 31m
Frontier
Sat 3/78:12 pm
STL
- SLC
1 stop11h 43m
Frontier
Deal found 1/29![Frontier logo]()
$189
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 January 31, 2026.
Search for one-way flight options from Utah to Illinois. Find affordable one-way fares based on user searches. Data last updated January 31, 2026.
This Trip.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/109:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Deal found 1/30![Frontier logo]()
$47
This Trip.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/38:01 pm
SLC
- STL
1 stop18h 52m
Frontier
Deal found 1/28![Frontier logo]()
$53
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/69:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Deal found 1/30![Frontier logo]()
$54
This Trip.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/188:00 am
SLC
- STL
1 stop6h 53m
Frontier
Deal found 1/29![Frontier logo]()
$63
This Trip.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.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
Deal found 1/30![Frontier logo]()
$65
This Trip.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/89:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Deal found 1/30![Frontier logo]()
$67
This Gotogate deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/248:01 pm
SLC
- STL
1 stop18h 52m
Frontier
Deal found 1/30![Frontier logo]()
$70
This Trip.com deal was found by Cheapflights users on 1/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/199:49 pm
SLC
- STL
1 stop14h 20m
Frontier
Deal found 1/29![Frontier logo]()
$71
This Priceline deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/258:00 am
SLC
- STL
1 stop6h 53m
Frontier
Deal found 1/30![Frontier logo]()
$74
This Kiwi.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/258:00 am
SLC
- ORD
2 stops14h 37m
Frontier
Deal found 1/28![Frontier logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” 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 3/239:14 pm
SLC
- MDW
2 stops36h 11m
Frontier
Deal found 1/31![Frontier logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 1/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/156:19 pm
SLC
- MDW
2 stops27h 02m
Frontier
Deal found 1/30![Frontier logo]()
$114
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 January 31, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $123 (Kiwi.com) |
One-way from | $47 (Trip.com) |
Popular in | December |
Cheapest in | September |
Average price | $397 |
Good round-trip deal | $416 or less |
Good one-way deal | $209 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 January 31, 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
Fri 3/6
9:14 pm-9:49 am
1 stop11h 35m
Lambert-St Louis
Mon 3/9
8:12 pm-7:55 am
1 stop12h 43m
$123
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Wed 2/25
8:00 am-3:53 pm
1 stop6h 53m
Lambert-St Louis
Sat 2/28
2:51 pm-12:14 am
1 stop10h 23m
$138
Salt Lake CityChicago
SLC - ORD
SLCORD
Salt Lake City
Sun 5/3
7:35 am-9:50 am
1 stop25h 15m
Chicago O'Hare Intl
Thu 5/7
10:55 am-8:01 am
1 stop22h 06m
$188
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Tue 2/10
8:01 pm-1:58 pm
1 stop16h 57m
Lambert-St Louis
Fri 3/6
8:12 pm-7:55 am
1 stop12h 43m
$192
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Sun 3/15
10:33 pm-9:49 am
2 stops10h 16m
Lambert-St Louis
Mon 3/23
8:12 pm-10:54 am
1 stop15h 42m
$211
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Mon 3/16
10:59 pm-12:15 pm
1 stop12h 16m
Lambert-St Louis
Mon 3/23
12:14 pm-6:00 pm
1 stop6h 46m
$218
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Wed 2/11
8:00 am-1:58 pm
1 stop4h 58m
Lambert-St Louis
Wed 3/11
8:12 pm-12:14 am
1 stop5h 02m
$220
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Wed 2/18
8:00 am-3:53 pm
1 stop6h 53m
Lambert-St Louis
Wed 2/18
8:17 pm-11:25 am
2 stops16h 08m
$228
Salt Lake CityChicago
SLC - ORD
SLCORD
Salt Lake City
Wed 2/25
6:20 am-4:33 pm
1 stop9h 13m
Chicago O'Hare Intl
Mon 3/2
3:07 pm-11:45 pm
1 stop9h 38m
$235
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Tue 3/24
11:49 am-9:49 am
1 stop21h 00m
Lambert-St Louis
Tue 4/14
4:55 pm-8:29 pm
1 stop28h 34m
$237
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-ORD
SLC-MDW
SLC-BMI
SGU-ORD
SLC-DEC
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-ORD
SLC-MDW
SLC-BMI
SGU-ORD
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 $73). Flying from Utah to Illinois in January is currently the most expensive (average of $256). 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 January 31, 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 January 24, 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 January 31, 2026.
The most flights from USUT to USIL are scheduled on a Friday (31 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (8 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 January 31, 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.
Boarding
8.1
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Crew
8.6
Comfort
8.0
Entertainment
7.5
Overall
8.0
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for Utah to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
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 January 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$65 | Average$224 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$75 | Average$200 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$90 | Average$180 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$168 | Average$430 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$204 | Average$438 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$227 | Average$489 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$290 | Average$471 | FlexibilityNo cancel fee | On-time63% |