$47+ Cheap flights from Salt Lake City (SLC) 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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — ORD
Mar 5 — Mar 121
1 adult, Economy
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Find cheap flights from Salt Lake City to Illinois with Cheapflights
1. Tell us where you want to go
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Cheapest flights from Salt Lake City to IllinoisExplore the most affordable flight options available from Salt Lake City to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.
Explore the most affordable flight options available from Salt Lake City to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.
This Frontier deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 2/2![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” 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
Sun 3/86:19 pm
STL
- SLC
1 stop15h 56m
Frontier
Deal found 2/1![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 3/912:14 pm
STL
- SLC
1 stop21h 46m
Frontier
Deal found 2/2![Frontier logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/48:00 am
SLC
- STL
1 stop6h 53m
Frontier
Wed 3/118:12 pm
STL
- SLC
1 stop15h 42m
Frontier
Deal found 2/1![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 3/38:01 pm
SLC
- STL
1 stop18h 52m
Frontier
Tue 3/108:06 pm
STL
- SLC
1 stop13h 54m
Frontier
Deal found 2/2![Frontier logo]()
$164
This Expedia deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 3/26:24 am
SLC
- STL
1 stop5h 45m
Frontier
Mon 3/912:14 pm
STL
- SLC
1 stop6h 46m
Frontier
Deal found 2/2![Frontier logo]()
$173
This CheapOair deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” 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 2/194:28 pm
SLC
- STL
1 stop27h 58m
Frontier
Mon 2/2310:11 pm
STL
- SLC
1 stop16h 22m
Frontier
Deal found 2/1![Frontier logo]()
$175
This Frontier deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” 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 5/98:00 am
SLC
- STL
1 stop10h 12m
Frontier
Mon 5/118:12 pm
STL
- SLC
1 stop4h 56m
Frontier
Deal found 2/1![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 3/910:10 am
SLC
- ORD
1 stop18h 58m
Frontier
Tue 3/178:55 pm
ORD
- SLC
1 stop13h 15m
Frontier
Deal found 2/2![Frontier logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 3/108:30 pm
SLC
- ORD
1 stop8h 38m
Frontier
Mon 3/165:09 pm
ORD
- SLC
2 stops17h 01m
Frontier
Deal found 2/2![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 3/108:30 pm
SLC
- ORD
1 stop8h 38m
Frontier
Tue 3/178:55 pm
ORD
- SLC
2 stops12h 00m
Frontier
Deal found 2/2![Frontier logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/119:14 pm
SLC
- ORD
1 stop11h 29m
Frontier
Mon 3/165:09 pm
ORD
- SLC
2 stops17h 01m
Frontier
Deal found 2/2![Frontier logo]()
$185
Best flights from Salt Lake City to IllinoisDiscover carefully curated flight deals from Salt Lake City to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 3, 2026.
Discover carefully curated flight deals from Salt Lake City to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 3, 2026.
This Frontier deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” 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 2/1![Frontier logo]()
$128
This CheapOair deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 2/286:20 am
SLC
- ORD
1 stop9h 13m
Alaska Airlines
Tue 3/35:29 pm
ORD
- SLC
1 stop19h 19m
Alaska Airlines
Deal found 2/2![Alaska Airlines logo]()
$217
This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” 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 5/125:06 pm
SLC
- MLI
1 stop5h 48m
American Airlines
Tue 5/196:40 pm
MLI
- SLC
1 stop7h 17m
American Airlines
Deal found 2/1![American Airlines logo]()
$271
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/87:15 am
SLC
- ORD
Nonstop3h 16m
United Airlines
Sat 4/118:25 pm
ORD
- SLC
Nonstop3h 40m
United Airlines
Deal found 1/31![United Airlines logo]()
$309
This Southwest deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” 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 2/286:50 pm
SLC
- MDW
1 stop9h 25m
Southwest
Tue 3/38:30 am
MDW
- SLC
Nonstop3h 45m
Southwest
Deal found 2/1![Southwest logo]()
$349
This Delta deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1010:45 pm
SLC
- ORD
1 stop13h 39m
Delta
Wed 3/181:19 pm
ORD
- SLC
Nonstop3h 46m
Delta
Deal found 2/2![Delta logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” 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 3/1510:40 pm
SLC
- MLI
1 stop21h 28m
Multiple Airlines
Sun 3/2212:17 pm
MLI
- SLC
1 stop21h 58m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$354
This Sun Country Air 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/236:54 pm
SLC
- ORD
1 stop20h 00m
Sun Country Air
Tue 7/2812:19 pm
ORD
- SLC
1 stop5h 53m
Sun Country Air
Deal found 1/31![Sun Country Air logo]()
$355
This CheapOair deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 3/247:35 am
SLC
- STL
1 stop25h 14m
Frontier
Tue 4/214:55 pm
STL
- SLC
1 stop28h 34m
Frontier
Deal found 2/2![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/48:01 pm
SLC
- STL
2 stops26h 58m
Frontier
Wed 3/118:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 2/1![Frontier logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 4/2410:40 pm
SLC
- ORD
1 stop18h 01m
Frontier
Mon 4/279:18 pm
ORD
- SLC
2 stops14h 56m
Frontier
Deal found 2/2![Frontier logo]()
$195
This Alaska Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” 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
Fri 3/63:07 pm
ORD
- SLC
1 stop9h 38m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$265
This Kiwi.com deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” 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
Sat 2/142:51 pm
STL
- SLC
1 stop10h 23m
Frontier
Deal found 2/1![Frontier logo]()
$203
This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/249:59 pm
SLC
- STL
1 stop20h 13m
Frontier
Mon 4/279:55 pm
STL
- SLC
1 stop18h 11m
Frontier
Deal found 1/31![Frontier logo]()
$215
This American Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 3/55:11 pm
SLC
- PIA
1 stop5h 14m
American Airlines
Wed 3/115:22 pm
PIA
- SLC
1 stop6h 26m
American Airlines
Deal found 2/2![American Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 3/47:30 am
SLC
- PIA
1 stop5h 40m
United Airlines
Wed 3/111:25 pm
PIA
- SLC
2 stops9h 50m
United Airlines
Deal found 2/2![United Airlines logo]()
$325
This American Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 3/46:30 am
SLC
- PIA
1 stop6h 55m
American Airlines
Wed 3/115:22 pm
PIA
- SLC
1 stop6h 26m
American Airlines
Deal found 2/2![American Airlines logo]()
$319
This Expedia deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” 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 3/129:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Thu 3/1910:47 pm
STL
- SLC
1 stop11h 25m
Frontier
Deal found 2/1![Frontier logo]()
$218
This Southwest deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” 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 4/207:15 am
SLC
- MDW
Nonstop3h 00m
Southwest
Tue 4/286:10 am
MDW
- SLC
1 stop5h 55m
Southwest
Deal found 2/1![Southwest logo]()
$353
This United Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 3/54:00 pm
SLC
- MLI
1 stop5h 22m
United Airlines
Wed 3/118:20 am
MLI
- SLC
2 stops9h 52m
United Airlines
Deal found 2/2![United Airlines logo]()
$344
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 2/146:52 pm
SLC
- ORD
1 stop19h 06m
Alaska Airlines
Sat 2/213:07 pm
ORD
- SLC
1 stop9h 15m
Alaska Airlines
Deal found 1/31![Alaska Airlines logo]()
$350
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.
Sat 4/1111:35 pm
SLC
- MDW
1 stop8h 10m
Southwest
Tue 4/149:00 pm
MDW
- SLC
Nonstop3h 25m
Southwest
Deal found 1/31![Southwest logo]()
$359
This American Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 3/55:26 am
SLC
- MLI
1 stop6h 34m
American Airlines
Wed 3/113:31 pm
MLI
- SLC
1 stop8h 17m
American Airlines
Deal found 2/2![American Airlines logo]()
$331
This Expedia deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 12m
Frontier
Fri 5/18:12 pm
STL
- SLC
1 stop4h 56m
Frontier
Deal found 2/2![Frontier logo]()
$235
This United Airlines deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” 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 4/115:00 am
SLC
- ORD
1 stop5h 23m
United Airlines
Tue 4/1412:40 pm
ORD
- SLC
Nonstop3h 42m
United Airlines
Deal found 2/3![United Airlines logo]()
$348
This Frontier deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 2/193:05 pm
SLC
- MDW
1 stop7h 36m
Frontier
Fri 2/277:45 am
MDW
- SLC
1 stop8h 28m
Frontier
Deal found 2/2![Frontier logo]()
$235
This Southwest deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/187:25 pm
SLC
- MDW
1 stop8h 35m
Southwest
Wed 3/2512:55 pm
MDW
- SLC
2 stops9h 00m
Southwest
Deal found 2/1![Southwest logo]()
$384
This Alaska Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” 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 3/2411:06 am
SLC
- STL
1 stop11h 53m
Alaska Airlines
Tue 4/147:00 am
STL
- SLC
2 stops11h 54m
Alaska Airlines
Deal found 2/1![Alaska Airlines logo]()
$385
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1812:44 pm
SLC
- MLI
1 stop7h 23m
United Airlines
Tue 4/213:20 pm
MLI
- SLC
1 stop8h 45m
United Airlines
Deal found 1/31![United Airlines logo]()
$351
This United Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” 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 4/74:18 pm
SLC
- PIA
1 stop5h 09m
United Airlines
Tue 4/148:15 am
PIA
- SLC
1 stop8h 07m
United Airlines
Deal found 2/1![United Airlines logo]()
$359
Last-minute flights from Salt Lake City to IllinoisDiscover last-minute flight deals from Salt Lake City to Illinois. Data last updated February 3, 2026 and is based on user searches.
Discover last-minute flight deals from Salt Lake City to Illinois. Data last updated February 3, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” 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 2/194:28 pm
SLC
- STL
1 stop27h 58m
Frontier
Mon 2/2310:11 pm
STL
- SLC
1 stop16h 22m
Frontier
Deal found 2/1![Frontier logo]()
$175
This Frontier deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 2/2![Frontier logo]()
$128
This Expedia deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 3/26:24 am
SLC
- STL
1 stop5h 45m
Frontier
Mon 3/912:14 pm
STL
- SLC
1 stop6h 46m
Frontier
Deal found 2/2![Frontier logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 3/38:01 pm
SLC
- STL
1 stop18h 52m
Frontier
Tue 3/108:06 pm
STL
- SLC
1 stop13h 54m
Frontier
Deal found 2/2![Frontier logo]()
$164
This Kiwi.com deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/48:00 am
SLC
- STL
1 stop6h 53m
Frontier
Wed 3/118:12 pm
STL
- SLC
1 stop15h 42m
Frontier
Deal found 2/1![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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
- ORD
1 stop25h 58m
Frontier
Mon 3/98:55 pm
ORD
- SLC
2 stops12h 00m
Frontier
Deal found 2/2![Frontier logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” 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
Sun 3/86:19 pm
STL
- SLC
1 stop15h 56m
Frontier
Deal found 2/1![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 3/912:14 pm
STL
- SLC
1 stop21h 46m
Frontier
Deal found 2/2![Frontier logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 3/910:10 am
SLC
- ORD
1 stop18h 58m
Frontier
Tue 3/178:55 pm
ORD
- SLC
1 stop13h 15m
Frontier
Deal found 2/2![Frontier logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 3/108:30 pm
SLC
- ORD
1 stop8h 38m
Frontier
Mon 3/165:09 pm
ORD
- SLC
2 stops17h 01m
Frontier
Deal found 2/2![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 3/108:30 pm
SLC
- ORD
1 stop8h 38m
Frontier
Tue 3/178:55 pm
ORD
- SLC
2 stops12h 00m
Frontier
Deal found 2/2![Frontier logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/119:14 pm
SLC
- ORD
1 stop11h 29m
Frontier
Mon 3/165:09 pm
ORD
- SLC
2 stops17h 01m
Frontier
Deal found 2/2![Frontier logo]()
$185
One-way flights from Salt Lake City to IllinoisSearch for one-way flight options from Salt Lake City to Illinois. Find affordable one-way fares based on user searches. Data last updated February 3, 2026.
Search for one-way flight options from Salt Lake City to Illinois. Find affordable one-way fares based on user searches. Data last updated February 3, 2026.
This Trip.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 Trip.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 1/31![Frontier logo]()
$47
This Trip.com deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 2/2![Frontier logo]()
$53
This WAYA 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/217:20 am
SLC
- STL
1 stop5h 36m
Frontier
Deal found 1/31![Frontier logo]()
$63
This Orbitz deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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.
Wed 2/258:00 am
SLC
- STL
1 stop6h 53m
Frontier
Deal found 2/2![Frontier logo]()
$64
This Trip.com deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” 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 3/249:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Deal found 2/1![Frontier logo]()
$65
This Mytrip deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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.
Tue 2/248:01 pm
SLC
- STL
1 stop18h 52m
Frontier
Deal found 2/2![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 3/38:01 pm
SLC
- STL
1 stop18h 52m
Frontier
Deal found 2/2![Frontier logo]()
$72
This Expedia deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” 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 3/26:24 am
SLC
- STL
1 stop5h 45m
Frontier
Deal found 2/2![Frontier logo]()
$74
This Kiwi.com deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/319:14 pm
SLC
- STL
1 stop11h 34m
Frontier
Deal found 2/1![Frontier logo]()
$77
This Kiwi.com deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/71:35 pm
SLC
- STL
1 stop19h 13m
Frontier
Deal found 2/2![Frontier logo]()
$78
This Frontier deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” 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 4/2310:33 pm
SLC
- ORD
1 stop7h 14m
Frontier
Deal found 2/1![Frontier logo]()
$116
This Kiwi.com deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” 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 3/177:35 am
SLC
- MDW
2 stops12h 19m
Frontier
Deal found 2/1![Frontier logo]()
$116
Find flight deals from Salt Lake City to Illinois
Keep the following information in mind while searching for Salt Lake City to Illinois flight deals. Data was last updated February 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $128 (Frontier) |
One-way from | $47 (Trip.com) |
Popular in | December |
Cheapest in | September |
Average price | $379 |
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 Salt Lake City 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 3, 2026.
Use the filters below to find and compare flights from Salt Lake City to Illinois that are best for you.
Fly from
Salt Lake City
Fly to
Illinois
Route
Depart
Return
Price
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
$128
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Tue 3/24
7:35 am-9:49 am
1 stop25h 14m
Lambert-St Louis
Tue 4/21
4:55 pm-8:29 pm
1 stop28h 34m
$191
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Wed 3/4
8:01 pm-11:59 pm
2 stops26h 58m
Lambert-St Louis
Wed 3/11
8:12 pm-7:55 am
1 stop12h 43m
$194
Salt Lake CityChicago
SLC - ORD
SLCORD
Salt Lake City
Fri 4/24
10:40 pm-5:41 pm
1 stop18h 01m
Chicago O'Hare Intl
Mon 4/27
9:18 pm-11:14 am
2 stops14h 56m
$195
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
Sat 2/14
2:51 pm-12:14 am
1 stop10h 23m
$203
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Fri 4/24
9:59 pm-7:12 pm
1 stop20h 13m
Lambert-St Louis
Mon 4/27
9:55 pm-3:06 pm
1 stop18h 11m
$215
Salt Lake CityChicago
SLC - ORD
SLCORD
Salt Lake City
Sat 2/28
6:20 am-4:33 pm
1 stop9h 13m
Chicago O'Hare Intl
Tue 3/3
5:29 pm-11:48 am
1 stop19h 19m
$217
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Thu 3/12
9:14 pm-9:49 am
1 stop11h 35m
Lambert-St Louis
Thu 3/19
10:47 pm-9:12 am
1 stop11h 25m
$218
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Sat 4/18
8:00 am-7:12 pm
1 stop10h 12m
Lambert-St Louis
Fri 5/1
8:12 pm-12:08 am
1 stop4h 56m
$235
Salt Lake CityChicago
SLC - MDW
SLCMDW
Salt Lake City
Thu 2/19
3:05 pm-11:41 pm
1 stop7h 36m
Chicago Midway
Fri 2/27
7:45 am-3:13 pm
1 stop8h 28m
$235
Showing 1-10 of 60 results
Best time to book a flight from Salt Lake City to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Salt Lake City with our price prediction graph.
SLC-STL
SLC-ORD
SLC-MLI
SLC-MDW
SLC-PIA
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 Salt Lake City to Illinois
SLC-USIL
SLC-STL
SLC-ORD
SLC-MLI
SLC-MDW
What is the cheapest month to book a flight from Salt Lake City to Illinois?
Currently, April is the cheapest month in which you can book a flight from Salt Lake City to Illinois (average of $73). Flying from Salt Lake City 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 SLC to IL?
Find hourly flight availability from Salt Lake City 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 3, 2026.
It’s typically best to fly out from Salt Lake City to Illinois in the evening. Doing so could potentially save you 64% on the flight price compared to flying in the afternoon, which is usually more expensive.
What is the cheapest day to fly from Salt Lake City to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Salt Lake City to Illinois. Price data was last updated on January 31, 2026.
Travelers seeking maximum savings on their Salt Lake City to Illinois flight should consider departing on Wednesday evenings 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 Salt Lake City to Illinois
Explore weekly flight availability from Salt Lake City 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 3, 2026.
The most flights from SLC to USIL are scheduled on a Sunday (33 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 February 3, 2026.
Read through reviews of airlines operating flights from Salt Lake City to Illinois, such as Southwest, Delta, and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Comfort
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 Salt Lake City 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 Salt Lake City to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Top 6 airlines flying from Salt Lake City to Illinois
Discover the top 6 airlines that operate flights from Salt Lake City 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 3, 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$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% |