$58+ 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — ORD
Feb 20 — Feb 271
1 adult, Economy
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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 January 21, 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 January 21, 2026.
This Expedia deal was found by Cheapflights users on 1/21. 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.
Sat 2/217:20 am
SLC
- STL
1 stop5h 36m
Frontier
Sat 2/286:41 pm
STL
- SLC
1 stop14h 49m
Frontier
Deal found 1/21![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2312:49 pm
SLC
- STL
1 stop6h 13m
Frontier
Mon 3/28:47 pm
STL
- SLC
1 stop16h 14m
Frontier
Deal found 1/21![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1910:37 pm
SLC
- STL
1 stop21h 49m
Frontier
Thu 2/2610:11 pm
STL
- SLC
1 stop11h 19m
Frontier
Deal found 1/21![Frontier logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/48:35 am
SLC
- STL
1 stop5h 11m
Frontier
Wed 3/45:18 pm
STL
- SLC
1 stop16h 26m
Frontier
Deal found 1/21![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/69:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Sun 3/89:22 pm
STL
- SLC
1 stop12h 53m
Frontier
Deal found 1/20![Frontier logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/48:35 am
SLC
- STL
1 stop5h 11m
Frontier
Thu 2/510:01 pm
STL
- SLC
1 stop14h 04m
Frontier
Deal found 1/20![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/59:59 pm
SLC
- STL
1 stop10h 50m
Frontier
Mon 3/98:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Deal found 1/20![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/184:40 pm
SLC
- MDW
1 stop30h 01m
Frontier
Mon 2/237:25 pm
MDW
- SLC
1 stop17h 36m
Frontier
Deal found 1/20![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 2/69:31 pm
SLC
- ORD
1 stop18h 20m
Frontier
Tue 2/109:05 am
ORD
- SLC
1 stop7h 40m
Frontier
Deal found 1/20![Frontier logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 1/20. 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.
Sat 2/287:20 am
SLC
- ORD
2 stops14h 57m
Frontier
Tue 3/39:15 am
ORD
- SLC
1 stop7h 30m
Frontier
Deal found 1/20![Frontier logo]()
$194
This CheapOair deal was found by Cheapflights users on 1/21. 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.
Thu 2/192:13 pm
SLC
- ORD
1 stop8h 01m
Frontier
Tue 3/108:55 pm
ORD
- SLC
1 stop13h 05m
Frontier
Deal found 1/21![Frontier logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 1/19. 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.
Sun 3/2210:40 pm
SLC
- MDW
1 stop23h 05m
Frontier
Sun 4/55:11 pm
MDW
- SLC
2 stops27h 06m
Frontier
Deal found 1/19![Frontier logo]()
$195
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 January 21, 2026.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $131 (Kiwi.com) |
One-way from | $58 (Trip.com) |
Popular in | December |
Cheapest in | September |
Average price | $397 |
Good round-trip deal | $385 or less |
Good one-way deal | $201 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 January 21, 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 2/4
8:35 am-2:46 pm
1 stop5h 11m
Lambert-St Louis
Wed 3/4
5:18 pm-8:44 am
1 stop16h 26m
$149
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Thu 2/19
10:37 pm-9:26 pm
1 stop21h 49m
Lambert-St Louis
Thu 2/26
10:11 pm-12:01 pm
2 stops14h 50m
$162
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Thu 2/5
12:15 pm-9:06 pm
1 stop7h 51m
Lambert-St Louis
Mon 2/9
1:40 pm-12:14 am
1 stop11h 34m
$180
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Tue 3/3
8:01 pm-3:53 pm
1 stop18h 52m
Lambert-St Louis
Sun 3/8
9:22 pm-9:15 am
1 stop12h 53m
$182
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Wed 2/4
8:35 am-2:46 pm
1 stop5h 11m
Lambert-St Louis
Thu 2/5
10:01 pm-8:36 pm
2 stops23h 35m
$210
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Wed 1/28
7:30 pm-9:06 pm
1 stop24h 36m
Lambert-St Louis
Fri 1/30
9:43 pm-1:44 pm
2 stops17h 01m
$212
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
Mon 3/9
10:59 pm-9:49 am
2 stops33h 50m
Lambert-St Louis
Thu 3/12
8:06 pm-9:15 am
1 stop14h 09m
$269
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
Tue 3/31
12:14 pm-7:29 pm
1 stop8h 15m
$275
Salt Lake CityChicago
SLC - ORD
SLCORD
Salt Lake City
Tue 4/14
11:06 am-11:59 pm
1 stop11h 53m
Chicago O'Hare Intl
Thu 4/16
4:10 pm-11:06 pm
1 stop7h 56m
$278
Salt Lake CityPeoria
SLC - PIA
SLCPIA
Salt Lake City
Wed 2/18
6:30 am-2:25 pm
1 stop6h 55m
Greater Peoria
Wed 2/25
5:23 pm-11:03 pm
1 stop6h 40m
$279
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.
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
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 $72). 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 January 21, 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 17, 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. Sunday afternoons 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 January 21, 2026.
The most flights from SLC to USIL are scheduled on a Monday (31 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated January 21, 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.
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Entertainment
7.5
Overall
8.0
Comfort
8.0
Crew
8.6
Food
7.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from 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.
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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 January 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$65 | Average$226 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$75 | Average$200 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$170 | Average$431 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$203 | Average$439 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$227 | Average$498 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$290 | Average$471 | FlexibilityNo cancel fee | On-time63% |