$86+ 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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — ORD
Apr 21 — Apr 281
Round-trip
1 adult, Economy
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Find cheap flights from Utah to Illinois with Cheapflights
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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 22, 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 22, 2026.
This Frontier deal was found by Cheapflights users on 3/22. 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 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
Fri 5/159:18 pm
STL
- SLC
1 stop13h 12m
Frontier
Deal found 3/22![Frontier logo]()
$162
This CheapOair deal was found by Cheapflights users on 3/22. 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 CheapOair 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
Mon 5/119:18 pm
STL
- SLC
1 stop13h 12m
Frontier
Deal found 3/22![Frontier logo]()
$171
This Expedia deal was found by Cheapflights users on 3/20. 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 Expedia 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
Mon 5/49:55 pm
STL
- SLC
1 stop12h 35m
Frontier
Deal found 3/20![Frontier logo]()
$180
This Frontier deal was found by Cheapflights users on 3/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/239:59 pm
SLC
- STL
1 stop24h 20m
Frontier
Sun 4/264:59 pm
STL
- SLC
1 stop28h 35m
Frontier
Deal found 3/20![Frontier logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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
- STL
1 stop10h 46m
Frontier
Mon 4/278:17 pm
STL
- SLC
1 stop27h 57m
Frontier
Deal found 3/18![Frontier logo]()
$184
This Expedia deal was found by Cheapflights users on 3/20. 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 Expedia 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
Sat 5/238:08 pm
STL
- SLC
1 stop20h 36m
Frontier
Deal found 3/20![Frontier logo]()
$185
This CheapOair deal was found by Cheapflights users on 3/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/168:23 am
SLC
- STL
1 stop10h 00m
Frontier
Tue 5/196:51 pm
STL
- SLC
1 stop15h 39m
Frontier
Deal found 3/22![Frontier logo]()
$191
This Expedia deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 4/167:35 am
SLC
- STL
1 stop10h 46m
Frontier
Sun 4/199:55 pm
STL
- SLC
1 stop11h 57m
Frontier
Deal found 3/18![Frontier logo]()
$200
This Expedia deal was found by Cheapflights users on 3/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1211:49 am
SLC
- STL
1 stop20h 59m
Frontier
Mon 4/138:19 pm
STL
- SLC
1 stop27h 55m
Frontier
Deal found 3/21![Frontier logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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
Sat 4/188:17 pm
STL
- SLC
1 stop12h 44m
Frontier
Deal found 3/18![Frontier logo]()
$202
This Orbitz deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 4/91:47 pm
SLC
- STL
1 stop17h 04m
Frontier
Thu 4/168:06 pm
STL
- SLC
1 stop15h 48m
Frontier
Deal found 3/18![Frontier logo]()
$204
This Kiwi.com deal was found by Cheapflights users on 3/19. 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.
Mon 4/1310:52 pm
SLC
- ORD
2 stops14h 15m
Frontier
Mon 4/2010:55 am
ORD
- SLC
1 stop25h 19m
Frontier
Deal found 3/19![Frontier logo]()
$257
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 22, 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 22, 2026.
This United Airlines deal was found by Cheapflights users on 3/19. 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.
Fri 4/104:33 pm
SLC
- MLI
1 stop6h 24m
United Airlines
Sat 4/1810:35 am
MLI
- SLC
1 stop5h 47m
United Airlines
Deal found 3/19![United Airlines logo]()
$325
This American Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 4/106:20 am
SLC
- BMI
1 stop6h 56m
American Airlines
Sun 4/122:46 pm
BMI
- SLC
1 stop8h 38m
American Airlines
Deal found 3/18![American Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/11:55 pm
SLC
- BMI
1 stop7h 24m
Delta
Sun 4/56:00 am
BMI
- SLC
1 stop7h 23m
Delta
Deal found 3/17![Delta logo]()
$369
This Southwest deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 5/182:15 pm
SLC
- MDW
1 stop7h 05m
Southwest
Wed 5/206:10 am
MDW
- SLC
1 stop5h 55m
Southwest
Deal found 3/18![Southwest logo]()
$422
This Alaska Airlines deal was found by Cheapflights users on 3/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/810:51 am
SLC
- ORD
1 stop7h 04m
Alaska Airlines
Fri 9/119:20 am
ORD
- SLC
1 stop10h 04m
Alaska Airlines
Deal found 3/19![Alaska Airlines logo]()
$471
This United Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 4/87:20 am
SLC
- MLI
1 stop5h 49m
United Airlines
Sat 4/188:54 am
MLI
- SLC
1 stop5h 25m
United Airlines
Deal found 3/18![United Airlines logo]()
$325
This American Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 4/96:20 am
SLC
- BMI
1 stop6h 56m
American Airlines
Sun 4/122:46 pm
BMI
- SLC
1 stop8h 38m
American Airlines
Deal found 3/18![American Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 3/22. 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.
Wed 4/221:44 pm
SLC
- PIA
1 stop8h 29m
American Airlines
Sun 4/266:00 am
PIA
- SLC
1 stop7h 37m
American Airlines
Deal found 3/22![American Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 3/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/167:20 am
SLC
- MLI
1 stop5h 49m
United Airlines
Sun 4/193:20 pm
MLI
- SLC
1 stop8h 50m
United Airlines
Deal found 3/20![United Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/28:55 am
SGU
- ORD
1 stop8h 10m
Delta
Sat 4/47:20 am
ORD
- SGU
1 stop8h 19m
Delta
Deal found 3/17![Delta logo]()
$378
This United Airlines deal was found by Cheapflights users on 3/19. 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 5/272:33 pm
SLC
- PIA
2 stops7h 12m
United Airlines
Sat 5/305:30 am
PIA
- SLC
1 stop6h 56m
United Airlines
Deal found 3/19![United Airlines logo]()
$344
This Southwest deal was found by Cheapflights users on 3/20. 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.
Sat 5/27:50 am
SLC
- STL
2 stops7h 40m
Southwest
Mon 5/43:50 pm
STL
- SLC
2 stops7h 50m
Southwest
Deal found 3/20![Southwest logo]()
$425
This American Airlines deal was found by Cheapflights users on 3/19. 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 4/33:57 pm
SLC
- BMI
1 stop5h 44m
American Airlines
Tue 4/76:00 am
BMI
- SLC
1 stop7h 49m
American Airlines
Deal found 3/19![American Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 3/19. 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.
Mon 4/201:55 pm
SLC
- ORD
Nonstop3h 09m
Delta
Tue 4/219:50 am
ORD
- SLC
1 stop7h 20m
Delta
Deal found 3/19![Delta logo]()
$417
This Southwest deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/156:55 am
SLC
- ORD
2 stops10h 55m
Southwest
Wed 4/2211:55 am
ORD
- SLC
2 stops9h 45m
Southwest
Deal found 3/17![Southwest logo]()
$427
This Alaska Airlines deal was found by Cheapflights users on 3/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1810:51 am
SLC
- ORD
1 stop7h 04m
Alaska Airlines
Sun 9/209:20 am
ORD
- SLC
1 stop10h 04m
Alaska Airlines
Deal found 3/21![Alaska Airlines logo]()
$471
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 7/244:25 pm
SLC
- MLI
1 stop6h 59m
United Airlines
Wed 7/298:10 am
MLI
- SLC
1 stop8h 12m
United Airlines
Deal found 3/17![United Airlines logo]()
$368
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/112:07 pm
SLC
- BMI
2 stops9h 34m
American Airlines
Sun 4/56:20 am
BMI
- SLC
1 stop7h 53m
American Airlines
Deal found 3/17![American Airlines logo]()
$374
This Southwest deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 5/117:15 am
SLC
- MDW
Nonstop3h 00m
Southwest
Thu 5/148:35 am
MDW
- SLC
1 stop8h 05m
Southwest
Deal found 3/17![Southwest logo]()
$427
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/243:20 pm
SGU
- ORD
1 stop4h 58m
Delta
Mon 4/277:00 am
ORD
- SGU
2 stops10h 52m
Delta
Deal found 3/17![Delta logo]()
$439
This United Airlines deal was found by Cheapflights users on 3/21. 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 6/101:48 pm
SGU
- ORD
1 stop6h 51m
United Airlines
Tue 6/165:00 am
ORD
- SGU
1 stop5h 51m
United Airlines
Deal found 3/21![United Airlines logo]()
$374
This Delta deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 4/238:40 pm
SLC
- STL
Nonstop2h 45m
Delta
Sun 4/266:45 pm
STL
- SLC
Nonstop3h 17m
Delta
Deal found 3/18![Delta logo]()
$439
This Southwest deal was found by Cheapflights users on 3/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/61:10 pm
SLC
- MDW
Nonstop3h 00m
Southwest
Tue 5/126:10 am
MDW
- SLC
1 stop5h 55m
Southwest
Deal found 3/21![Southwest logo]()
$455
This United Airlines deal was found by Cheapflights users on 3/21. 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.
Sat 7/41:35 pm
SGU
- ORD
Nonstop2h 19m
United Airlines
Sat 7/119:10 am
ORD
- SGU
Nonstop2h 28m
United Airlines
Deal found 3/21![United Airlines logo]()
$381
This Delta deal was found by Cheapflights users on 3/21. 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.
Fri 7/38:46 pm
SLC
- STL
Nonstop2h 53m
Delta
Sun 7/58:00 am
STL
- SLC
Nonstop3h 12m
Delta
Deal found 3/21![Delta logo]()
$439
This Southwest deal was found by Cheapflights users on 3/19. 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.
Tue 8/47:00 am
SLC
- STL
2 stops9h 55m
Southwest
Sat 8/87:00 am
STL
- SLC
2 stops8h 10m
Southwest
Deal found 3/19![Southwest logo]()
$469
This Delta deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 6/118:45 pm
SLC
- STL
Nonstop2h 51m
Delta
Sun 6/147:30 am
STL
- SLC
Nonstop3h 16m
Delta
Deal found 3/17![Delta logo]()
$439
This United Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/25:22 pm
SGU
- ORD
1 stop6h 08m
United Airlines
Mon 4/67:00 am
ORD
- SGU
1 stop10h 15m
United Airlines
Deal found 3/17![United Airlines logo]()
$403
This American Airlines deal was found by Cheapflights users on 3/19. 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 6/26:00 am
SLC
- SPI
1 stop7h 01m
American Airlines
Thu 6/116:00 am
SPI
- SLC
1 stop7h 37m
American Airlines
Deal found 3/19![American Airlines logo]()
$507
This Southwest deal was found by Cheapflights users on 3/20. 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.
Wed 4/221:20 pm
SLC
- ORD
2 stops9h 35m
Southwest
Tue 5/511:55 am
ORD
- SLC
2 stops9h 45m
Southwest
Deal found 3/20![Southwest logo]()
$479
Last-minute flights from Utah to IllinoisDiscover last-minute flight deals from Utah to Illinois. Data last updated March 22, 2026 and is based on user searches.
Discover last-minute flight deals from Utah to Illinois. Data last updated March 22, 2026 and is based on user searches.
This Orbitz deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 4/91:47 pm
SLC
- STL
1 stop17h 04m
Frontier
Thu 4/168:06 pm
STL
- SLC
1 stop15h 48m
Frontier
Deal found 3/18![Frontier logo]()
$204
This CheapOair deal was found by Cheapflights users on 3/19. 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 4/101:47 pm
SLC
- STL
1 stop9h 11m
Frontier
Sat 4/188:17 pm
STL
- SLC
1 stop12h 44m
Frontier
Deal found 3/19![Frontier logo]()
$171
This CheapOair deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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.
Sat 4/111:47 pm
SLC
- STL
1 stop8h 38m
Frontier
Sat 4/258:17 pm
STL
- SLC
1 stop12h 44m
Frontier
Deal found 3/18![Frontier logo]()
$211
This Expedia deal was found by Cheapflights users on 3/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1211:49 am
SLC
- STL
1 stop20h 59m
Frontier
Mon 4/138:19 pm
STL
- SLC
1 stop27h 55m
Frontier
Deal found 3/21![Frontier logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 3/19. 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.
Mon 4/1310:52 pm
SLC
- ORD
2 stops14h 15m
Frontier
Mon 4/2010:55 am
ORD
- SLC
1 stop25h 19m
Frontier
Deal found 3/19![Frontier logo]()
$257
This Expedia deal was found by Cheapflights users on 3/19. 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 Expedia 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 3/19![Frontier logo]()
$200
This Expedia deal was found by Cheapflights users on 3/20. 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 Expedia 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
Mon 5/49:55 pm
STL
- SLC
1 stop12h 35m
Frontier
Deal found 3/20![Frontier logo]()
$180
This Mytrip deal was found by Cheapflights users on 3/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/189:59 pm
SLC
- MDW
1 stop9h 00m
Frontier
Mon 4/206:20 am
MDW
- SLC
1 stop13h 47m
Frontier
Deal found 3/21![Frontier logo]()
$257
This Frontier deal was found by Cheapflights users on 3/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/239:59 pm
SLC
- STL
1 stop24h 20m
Frontier
Sun 4/264:59 pm
STL
- SLC
1 stop28h 35m
Frontier
Deal found 3/20![Frontier logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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
- STL
1 stop10h 46m
Frontier
Mon 4/278:17 pm
STL
- SLC
1 stop27h 57m
Frontier
Deal found 3/18![Frontier logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 3/20. 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 4/2410:48 pm
SLC
- STL
2 stops19h 44m
Frontier
Mon 4/278:17 pm
STL
- SLC
1 stop15h 57m
Frontier
Deal found 3/20![Frontier logo]()
$224
This CheapOair deal was found by Cheapflights users on 3/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/279:59 pm
SLC
- STL
1 stop24h 20m
Frontier
Sat 5/28:17 pm
STL
- SLC
1 stop12h 44m
Frontier
Deal found 3/21![Frontier logo]()
$232
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 22, 2026.
Search for one-way flight options from Utah to Illinois. Find affordable one-way fares based on user searches. Data last updated March 22, 2026.
This Expedia deal was found by Cheapflights users on 3/21. 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 Expedia 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
Deal found 3/21![Frontier logo]()
$86
This CheapOair deal was found by Cheapflights users on 3/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/219:59 pm
SLC
- STL
1 stop24h 20m
Frontier
Deal found 3/22![Frontier logo]()
$92
This Kiwi.com deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/163:19 pm
SLC
- STL
1 stop27h 02m
Frontier
Deal found 3/17![Frontier logo]()
$95
This Super.com deal was found by Cheapflights users on 3/20. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/91:47 pm
SLC
- STL
1 stop8h 38m
Frontier
Deal found 3/20![Frontier logo]()
$99
This Frontier deal was found by Cheapflights users on 3/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/181:32 pm
SLC
- STL
1 stop5h 51m
Frontier
Deal found 3/20![Frontier logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 3/22. 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 4/226:19 pm
SLC
- STL
1 stop24h 02m
Frontier
Deal found 3/22![Frontier logo]()
$104
This Kiwi.com deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 3/17![Frontier logo]()
$105
This Frontier deal was found by Cheapflights users on 3/22. 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 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
Deal found 3/22![Frontier logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 3/19. 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.
Fri 5/1510:54 pm
SLC
- STL
1 stop19h 29m
Frontier
Deal found 3/19![Frontier logo]()
$107
This CheapOair deal was found by Cheapflights users on 3/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/23:19 pm
SLC
- STL
1 stop27h 02m
Frontier
Deal found 3/20![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 3/20. 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 4/1610:48 pm
SLC
- PIA
1 stop12h 55m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$139
This Super.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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.
Sun 5/39:59 pm
SLC
- MDW
1 stop8h 47m
Frontier
Deal found 3/18![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 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $160 (Expedia) |
One-way from | $86 (Expedia) |
Popular in | January |
Cheapest in | September |
Average price | $452 |
Good round-trip deal | $420 or less |
Good one-way deal | $219 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 22, 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 CityMoline
SLC - MLI
SLCMLI
Salt Lake City
Fri 4/10
4:33 pm-11:57 pm
1 stop6h 24m
Moline Quad-City
Sat 4/18
10:35 am-3:22 pm
1 stop5h 47m
$325
Salt Lake CityMoline
SLC - MLI
SLCMLI
Salt Lake City
Wed 4/8
7:20 am-2:09 pm
1 stop5h 49m
Moline Quad-City
Sat 4/18
8:54 am-1:19 pm
1 stop5h 25m
$325
Salt Lake CityBloomington
SLC - BMI
SLCBMI
Salt Lake City
Fri 4/10
6:20 am-2:16 pm
1 stop6h 56m
Bloomington-Normal
Sun 4/12
2:46 pm-10:24 pm
1 stop8h 38m
$339
Salt Lake CityBloomington
SLC - BMI
SLCBMI
Salt Lake City
Thu 4/9
6:20 am-2:16 pm
1 stop6h 56m
Bloomington-Normal
Sun 4/12
2:46 pm-10:24 pm
1 stop8h 38m
$339
Salt Lake CityPeoria
SLC - PIA
SLCPIA
Salt Lake City
Wed 4/22
1:44 pm-11:13 pm
1 stop8h 29m
Greater Peoria
Sun 4/26
6:00 am-12:37 pm
1 stop7h 37m
$339
Salt Lake CityMoline
SLC - MLI
SLCMLI
Salt Lake City
Thu 4/16
7:20 am-2:09 pm
1 stop5h 49m
Moline Quad-City
Sun 4/19
3:20 pm-11:10 pm
1 stop8h 50m
$339
Salt Lake CityPeoria
SLC - PIA
SLCPIA
Salt Lake City
Wed 5/27
2:33 pm-10:45 pm
2 stops7h 12m
Greater Peoria
Sat 5/30
5:30 am-11:26 am
1 stop6h 56m
$344
Salt Lake CityMoline
SLC - MLI
SLCMLI
Salt Lake City
Fri 7/24
4:25 pm-12:24 am
1 stop6h 59m
Moline Quad-City
Wed 7/29
8:10 am-3:22 pm
1 stop8h 12m
$368
Salt Lake CityBloomington
SLC - BMI
SLCBMI
Salt Lake City
Wed 4/1
1:55 pm-10:19 pm
1 stop7h 24m
Bloomington-Normal
Sun 4/5
6:00 am-12:23 pm
1 stop7h 23m
$369
Salt Lake CityBloomington
SLC - BMI
SLCBMI
Salt Lake City
Fri 4/3
3:57 pm-10:41 pm
1 stop5h 44m
Bloomington-Normal
Tue 4/7
6:00 am-12:49 pm
1 stop7h 49m
$369
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-PIA
SLC-MDW
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-PIA
SLC-MDW
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 22, 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 22, 2026.
The most flights from USUT to USIL are scheduled on a Sunday (35 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (20 on average).
How much does it cost to fly round-trip from Utah to Illinois?
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 22, 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.
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Overall
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Overall
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Overall
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Overall
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Overall
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Overall
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Related info for your journey
Find useful and relevant information for your journey from 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.
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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 22, 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 22, 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$239 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$168 | Average$428 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$208 | Average$441 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$227 | Average$479 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$282 | Average$456 | FlexibilityNo cancel fee | On-time63% |