$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 5/16. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — ORD
Mar 29 — Apr 51
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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
Cheapest
Best
Last-minute
One-way
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 27, 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 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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
Mon 5/188:12 pm
STL
- SLC
1 stop16h 02m
Frontier
Deal found 2/26![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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 5/66:19 pm
SLC
- STL
1 stop23h 53m
Frontier
Mon 5/188:12 pm
STL
- SLC
1 stop16h 02m
Frontier
Deal found 2/26![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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
Wed 3/258:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/24![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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 5/37:51 am
SLC
- STL
1 stop10h 30m
Frontier
Mon 5/188:12 pm
STL
- SLC
1 stop16h 02m
Frontier
Deal found 2/26![Frontier logo]()
$144
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 3/109:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Wed 3/188:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/23![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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 5/110:33 pm
SLC
- STL
1 stop15h 48m
Frontier
Sat 5/28:17 pm
STL
- SLC
1 stop12h 44m
Frontier
Deal found 2/26![Frontier logo]()
$146
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.
Thu 4/99:17 pm
SLC
- STL
1 stop11h 31m
Frontier
Mon 4/138:19 pm
STL
- SLC
1 stop15h 55m
Frontier
Deal found 2/23![Frontier logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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 5/110:33 pm
SLC
- STL
1 stop15h 48m
Frontier
Mon 5/48:17 pm
STL
- SLC
1 stop15h 57m
Frontier
Deal found 2/26![Frontier logo]()
$149
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.
Fri 3/67:35 am
SLC
- STL
1 stop25h 14m
Frontier
Wed 3/188:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/23![Frontier logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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 4/307:35 am
SLC
- STL
1 stop10h 46m
Frontier
Mon 5/48:17 pm
STL
- SLC
1 stop15h 57m
Frontier
Deal found 2/26![Frontier logo]()
$151
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 3/109:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Fri 3/208:12 pm
STL
- SLC
1 stop15h 42m
Frontier
Deal found 2/23![Frontier logo]()
$153
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.
Thu 3/59:59 pm
SLC
- STL
1 stop10h 50m
Frontier
Mon 3/238:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/23![Frontier logo]()
$155
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 27, 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 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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 3/2710:59 pm
SLC
- STL
1 stop11h 20m
Frontier
Fri 4/38:23 am
STL
- SLC
2 stops24h 42m
Frontier
Deal found 2/26![Frontier logo]()
$281
This United Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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 3/134:00 pm
SLC
- PIA
1 stop5h 20m
United Airlines
Mon 3/165:25 pm
PIA
- SLC
1 stop6h 16m
United Airlines
Deal found 2/24![United Airlines logo]()
$309
This Southwest deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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 3/177:30 am
SLC
- MDW
Nonstop3h 10m
Southwest
Tue 3/315:35 pm
MDW
- SLC
1 stop6h 10m
Southwest
Deal found 2/24![Southwest logo]()
$327
This American Airlines deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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.
Mon 3/304:31 pm
SGU
- ORD
1 stop7h 20m
American Airlines
Sat 4/46:59 pm
ORD
- SGU
1 stop6h 26m
American Airlines
Deal found 2/26![American Airlines logo]()
$338
This Delta 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 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 4/217:35 am
ORD
- SLC
Nonstop3h 37m
Delta
Deal found 2/23![Delta logo]()
$343
This Alaska Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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 4/293:37 pm
SLC
- ORD
1 stop7h 22m
Alaska Airlines
Tue 5/58:00 am
ORD
- SLC
2 stops10h 31m
Alaska Airlines
Deal found 2/25![Alaska Airlines logo]()
$456
This United Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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 3/264:00 pm
SLC
- MLI
1 stop5h 22m
United Airlines
Thu 4/28:54 am
MLI
- SLC
1 stop7h 28m
United Airlines
Deal found 2/25![United Airlines logo]()
$336
This Delta deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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 4/165:10 pm
SLC
- ORD
Nonstop3h 08m
Delta
Sat 4/182:09 pm
ORD
- SLC
Nonstop3h 31m
Delta
Deal found 2/26![Delta logo]()
$347
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/17:50 am
SLC
- MDW
2 stops7h 20m
Southwest
Mon 4/69:25 pm
MDW
- SLC
Nonstop3h 30m
Southwest
Deal found 2/23![Southwest logo]()
$348
This KAYAK deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/98:46 pm
SLC
- BRL
2 stops15h 34m
Multiple Airlines
Sat 7/119:10 am
BRL
- SLC
2 stops13h 47m
Multiple Airlines
Deal found 2/24![Multiple Airlines logo]()
$736
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/101:59 pm
SLC
- ORD
Nonstop3h 06m
Delta
Sun 4/127:20 am
ORD
- SLC
Nonstop3h 48m
Delta
Deal found 2/23![Delta logo]()
$349
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/167:15 am
SLC
- MDW
Nonstop3h 00m
Southwest
Mon 4/279:45 pm
MDW
- SLC
Nonstop3h 25m
Southwest
Deal found 2/22![Southwest logo]()
$349
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/184:23 pm
SLC
- MLI
1 stop5h 24m
United Airlines
Tue 4/216:30 am
MLI
- SLC
1 stop6h 13m
United Airlines
Deal found 2/23![United Airlines logo]()
$351
This United Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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.
Mon 4/64:35 pm
SLC
- ORD
1 stop5h 19m
United Airlines
Wed 4/88:55 am
ORD
- SLC
Nonstop3h 48m
United Airlines
Deal found 2/25![United Airlines logo]()
$356
This Southwest deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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 4/711:40 pm
SLC
- MDW
1 stop6h 55m
Southwest
Fri 4/109:45 pm
MDW
- SLC
Nonstop3h 25m
Southwest
Deal found 2/24![Southwest logo]()
$357
This American Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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 3/275:14 pm
SLC
- SPI
1 stop5h 18m
American Airlines
Wed 4/15:00 am
SPI
- SLC
2 stops11h 04m
American Airlines
Deal found 2/24![American Airlines logo]()
$464
This Delta 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 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
Mon 4/205:04 pm
ORD
- SLC
1 stop6h 09m
Delta
Deal found 2/23![Delta logo]()
$393
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2112:44 pm
SLC
- PIA
1 stop7h 24m
United Airlines
Sat 4/258:15 am
PIA
- SLC
1 stop8h 07m
United Airlines
Deal found 2/22![United Airlines logo]()
$359
This Southwest deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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 4/139:45 pm
MDW
- SLC
Nonstop3h 25m
Southwest
Deal found 2/24![Southwest logo]()
$383
This United Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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 3/184:00 pm
SLC
- MLI
1 stop5h 22m
United Airlines
Sat 3/213:52 pm
MLI
- SLC
1 stop7h 49m
United Airlines
Deal found 2/25![United Airlines logo]()
$359
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:45 pm
SLC
- STL
Nonstop2h 46m
Delta
Thu 4/232:20 pm
STL
- SLC
Nonstop3h 20m
Delta
Deal found 2/23![Delta logo]()
$399
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/45:14 pm
SLC
- SPI
1 stop5h 18m
American Airlines
Sat 4/112:49 pm
SPI
- SLC
1 stop8h 35m
American Airlines
Deal found 2/23![American Airlines logo]()
$525
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/169:40 am
SLC
- STL
Nonstop2h 52m
Delta
Tue 5/192:27 pm
STL
- SLC
Nonstop3h 13m
Delta
Deal found 2/23![Delta logo]()
$399
This Southwest deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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 4/711:10 am
SLC
- STL
2 stops9h 00m
Southwest
Mon 4/133:50 pm
STL
- SLC
2 stops7h 50m
Southwest
Deal found 2/25![Southwest logo]()
$429
This United Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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 3/132:45 pm
SLC
- PIA
1 stop6h 35m
United Airlines
Tue 3/1710:40 am
PIA
- SLC
2 stops12h 35m
United Airlines
Deal found 2/25![United Airlines logo]()
$394
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/103:10 pm
SLC
- STL
Nonstop2h 53m
Delta
Sat 5/167:00 am
STL
- SLC
Nonstop3h 11m
Delta
Deal found 2/23![Delta logo]()
$399
This Southwest deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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 4/97:15 am
SLC
- MDW
Nonstop3h 00m
Southwest
Sun 4/129:40 pm
MDW
- SLC
Nonstop3h 25m
Southwest
Deal found 2/26![Southwest logo]()
$432
This United Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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 5/225:25 pm
SGU
- ORD
1 stop6h 19m
United Airlines
Fri 5/297:00 am
ORD
- SGU
1 stop10h 03m
United Airlines
Deal found 2/24![United Airlines logo]()
$398
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/51:20 pm
SLC
- STL
Nonstop2h 47m
Delta
Sun 4/127:15 am
STL
- SLC
Nonstop3h 22m
Delta
Deal found 2/23![Delta logo]()
$399
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/85:04 pm
SLC
- SPI
1 stop5h 32m
American Airlines
Mon 6/156:00 am
SPI
- SLC
2 stops10h 51m
American Airlines
Deal found 2/23![American Airlines logo]()
$619
Last-minute flights from Utah to IllinoisDiscover last-minute flight deals from Utah to Illinois. Data last updated February 27, 2026 and is based on user searches.
Discover last-minute flight deals from Utah to Illinois. Data last updated February 27, 2026 and is based on user searches.
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.
Thu 3/59:59 pm
SLC
- STL
1 stop10h 50m
Frontier
Mon 3/238:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/23![Frontier logo]()
$155
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.
Thu 3/59:59 pm
SLC
- STL
1 stop10h 50m
Frontier
Fri 3/208:12 pm
STL
- SLC
1 stop15h 42m
Frontier
Deal found 2/23![Frontier logo]()
$163
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.
Thu 3/59:59 pm
SLC
- STL
1 stop10h 50m
Frontier
Sat 3/218:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/23![Frontier logo]()
$167
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.
Fri 3/67:35 am
SLC
- STL
1 stop25h 14m
Frontier
Wed 3/188:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/23![Frontier logo]()
$150
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.
Fri 3/67:35 am
SLC
- STL
1 stop25h 14m
Frontier
Fri 3/208:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/23![Frontier logo]()
$159
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.
Fri 3/67:35 am
SLC
- STL
1 stop25h 14m
Frontier
Sat 3/218:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/23![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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 3/99:15 pm
SLC
- STL
2 stops20h 56m
Frontier
Mon 3/168:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/24![Frontier logo]()
$174
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 3/109:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Wed 3/188:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/23![Frontier logo]()
$145
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 3/109:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Fri 3/208:12 pm
STL
- SLC
1 stop15h 42m
Frontier
Deal found 2/23![Frontier logo]()
$153
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 3/109:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Sat 3/218:12 pm
STL
- SLC
1 stop15h 42m
Frontier
Deal found 2/23![Frontier logo]()
$157
This Frontier 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 Frontier 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
Tue 3/2412:14 pm
STL
- SLC
1 stop8h 15m
Frontier
Deal found 2/23![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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
Wed 3/258:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/24![Frontier logo]()
$140
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 27, 2026.
Search for one-way flight options from Utah to Illinois. Find affordable one-way fares based on user searches. Data last updated February 27, 2026.
This Trip.com deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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.
Sat 5/168:00 am
SLC
- STL
1 stop10h 12m
Frontier
Deal found 2/26![Frontier logo]()
$60
This Trip.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 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 2/23![Frontier logo]()
$61
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 3/179:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Deal found 2/23![Frontier logo]()
$64
This Kiwi.com deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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 4/188:00 am
SLC
- STL
1 stop10h 32m
Frontier
Deal found 2/25![Frontier logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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 2/24![Frontier logo]()
$66
This Trip.com deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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 2/25![Frontier logo]()
$67
This Kiwi.com deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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 5/66:19 pm
SLC
- STL
1 stop23h 53m
Frontier
Deal found 2/25![Frontier logo]()
$68
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.
Fri 5/17:35 am
SLC
- STL
1 stop10h 46m
Frontier
Deal found 2/23![Frontier logo]()
$71
This Kiwi.com deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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 5/143:19 pm
SLC
- STL
1 stop26h 53m
Frontier
Deal found 2/24![Frontier logo]()
$72
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.
Sun 3/157:35 am
SLC
- STL
1 stop25h 14m
Frontier
Deal found 2/23![Frontier logo]()
$73
This Trip.com deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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 4/237:35 am
SLC
- STL
1 stop10h 46m
Frontier
Deal found 2/24![Frontier logo]()
$74
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/267:35 am
SLC
- STL
1 stop25h 14m
Frontier
Deal found 2/23![Frontier logo]()
$75
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 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $129 (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 27, 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
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Fri 3/27
10:59 pm-11:19 am
1 stop11h 20m
Lambert-St Louis
Fri 4/3
8:23 am-8:05 am
2 stops24h 42m
$281
Salt Lake CityPeoria
SLC - PIA
SLCPIA
Salt Lake City
Fri 3/13
4:00 pm-10:20 pm
1 stop5h 20m
Greater Peoria
Mon 3/16
5:25 pm-10:41 pm
1 stop6h 16m
$309
Salt Lake CityChicago
SLC - MDW
SLCMDW
Salt Lake City
Tue 3/17
7:30 am-11:40 am
Nonstop3h 10m
Chicago Midway
Tue 3/31
5:35 pm-10:45 pm
1 stop6h 10m
$327
Salt Lake CityMoline
SLC - MLI
SLCMLI
Salt Lake City
Thu 3/26
4:00 pm-10:22 pm
1 stop5h 22m
Moline Quad-City
Thu 4/2
8:54 am-3:22 pm
1 stop7h 28m
$336
Saint GeorgeChicago
SGU - ORD
SGUORD
Saint George
Mon 3/30
4:31 pm-12:51 am
1 stop7h 20m
Chicago O'Hare Intl
Sat 4/4
6:59 pm-12:25 am
1 stop6h 26m
$338
Salt Lake CityChicago
SLC - ORD
SLCORD
Salt Lake City
Mon 4/20
6:00 am-12:45 pm
1 stop5h 45m
Chicago O'Hare Intl
Tue 4/21
7:35 am-10:12 am
Nonstop3h 37m
$343
Salt Lake CityChicago
SLC - ORD
SLCORD
Salt Lake City
Thu 4/16
5:10 pm-9:18 pm
Nonstop3h 08m
Chicago O'Hare Intl
Sat 4/18
2:09 pm-4:40 pm
Nonstop3h 31m
$347
Salt Lake CityChicago
SLC - MDW
SLCMDW
Salt Lake City
Wed 4/1
7:50 am-4:10 pm
2 stops7h 20m
Chicago Midway
Mon 4/6
9:25 pm-11:55 pm
Nonstop3h 30m
$348
Salt Lake CityChicago
SLC - ORD
SLCORD
Salt Lake City
Fri 4/10
1:59 pm-6:05 pm
Nonstop3h 06m
Chicago O'Hare Intl
Sun 4/12
7:20 am-10:08 am
Nonstop3h 48m
$349
Salt Lake CityChicago
SLC - MDW
SLCMDW
Salt Lake City
Thu 4/16
7:15 am-11:15 am
Nonstop3h 00m
Chicago Midway
Mon 4/27
9:45 pm-12:10 am
Nonstop3h 25m
$349
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-PIA
SLC-MDW
SGU-ORD
SLC-ORD
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-PIA
SLC-MDW
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 $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 27, 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 27, 2026.
The most flights from USUT to USIL are scheduled on a Thursday (37 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (20 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 27, 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.
Comfort
8.0
Overall
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Comfort
8.0
Overall
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Comfort
8.0
Overall
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Comfort
8.0
Overall
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Comfort
8.0
Overall
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Comfort
8.0
Overall
8.0
Entertainment
7.5
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
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
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Return Flight Options
Top destinations
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 27, 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 27, 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% |