$62+ Cheap flights from Illinois to Utah
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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SLC
Feb 7 — Feb 141
1 adult, Economy
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Find cheap flights from Illinois to Utah 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 Illinois to Utah
Keep the following information in mind while searching for Illinois to Utah flight deals. Data was last updated January 8, 2026.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $131 (Kiwi.com) |
One-way from | $62 (Trip.com) |
Popular in | December |
Cheapest in | October |
Average price | $465 |
Good round-trip deal | $378 or less |
Good one-way deal | $223 or less |
Find flight deals from Illinois to Utah
Cheapest flights from Illinois to UtahExplore the most affordable flight options available from Illinois to Utah. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 8, 2026.
Explore the most affordable flight options available from Illinois to Utah. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” 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 1/243:46 pmSTL - SLC
1 stop8h 53mFrontier
Tue 1/273:24 pmSLC - STL
1 stop22h 22mFrontier
Deal found 1/6![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” 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 1/213:46 pmSTL - SLC
1 stop17h 58mFrontier
Fri 1/239:19 pmSLC - STL
1 stop16h 27mFrontier
Deal found 1/6![Frontier logo]()
$133
This Frontier deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/91:40 pmSTL - SLC
1 stop11h 34mFrontier
Wed 2/118:00 amSLC - STL
1 stop4h 58mFrontier
Deal found 1/7![Frontier logo]()
$139
This Frontier deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/231:54 pmSTL - SLC
1 stop5h 05mFrontier
Wed 2/258:00 amSLC - STL
1 stop6h 53mFrontier
Deal found 1/6![Frontier logo]()
$144
This Orbitz deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” 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 3/258:12 pmSTL - SLC
1 stop5h 03mFrontier
Sat 4/48:58 pmSLC - STL
1 stop12h 04mFrontier
Deal found 1/7![Frontier logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” 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 2/91:40 pmSTL - SLC
1 stop24h 00mFrontier
Thu 2/122:13 pmSLC - STL
1 stop21h 56mFrontier
Deal found 1/6![Frontier logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” 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 2/510:01 pmSTL - SLC
1 stop21h 37mFrontier
Mon 2/96:20 amSLC - STL
1 stop5h 30mFrontier
Deal found 1/6![Frontier logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” 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 3/98:12 pmSTL - SLC
1 stop12h 43mFrontier
Sun 3/159:14 pmSLC - STL
1 stop11h 35mFrontier
Deal found 1/7![Frontier logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” 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 1/307:39 pmSTL - SLC
1 stop14h 05mFrontier
Mon 2/26:20 amSLC - STL
1 stop5h 30mFrontier
Deal found 1/7![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” 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 2/21:40 pmSTL - SLC
1 stop11h 34mFrontier
Sat 2/77:49 pmSLC - STL
1 stop14h 29mFrontier
Deal found 1/6![Frontier logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” 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 2/67:39 pmSTL - SLC
1 stop14h 05mFrontier
Tue 2/1012:56 pmSLC - STL
2 stops24h 02mFrontier
Deal found 1/7![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 1/7. Clicking the “Pick Dates” 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 3/98:12 pmSTL - SLC
1 stop12h 43mFrontier
Thu 3/1210:33 pmSLC - STL
1 stop11h 46mFrontier
Deal found 1/7![Frontier logo]()
$163
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Utah 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 8, 2026.
Use the filters below to find and compare flights from Illinois to Utah that are best for you.
Fly from
Illinois
Fly to
Utah
Route
Depart
Return
Price
ChicagoSaint George
ORD - SGU
ORDSGU
Chicago O'Hare Intl
Thu 2/5
7:20 am-2:41 pm
1 stop8h 21m
Saint George
Thu 2/12
5:50 am-12:19 pm
1 stop5h 29m
$184
ChicagoSaint George
ORD - SGU
ORDSGU
Chicago O'Hare Intl
Tue 4/7
7:20 am-12:31 pm
1 stop6h 11m
Saint George
Sat 4/11
8:55 am-3:18 pm
1 stop5h 23m
$184
ChicagoSaint George
ORD - SGU
ORDSGU
Chicago O'Hare Intl
Mon 4/6
1:18 pm-6:36 pm
1 stop6h 18m
Saint George
Sat 4/11
8:55 am-3:18 pm
1 stop5h 23m
$184
ChicagoSalt Lake City
ORD - SLC
ORDSLC
Chicago O'Hare Intl
Thu 2/19
6:45 pm-9:26 pm
Nonstop3h 41m
Salt Lake City
Mon 2/23
1:35 pm-5:42 pm
Nonstop3h 07m
$261
MolineSalt Lake City
MLI - SLC
MLISLC
Moline Quad-City
Sun 2/1
9:26 pm-10:50 am
1 stop14h 24m
Salt Lake City
Sat 2/7
7:16 pm-8:36 pm
1 stop24h 20m
$264
ChicagoSaint George
ORD - SGU
ORDSGU
Chicago O'Hare Intl
Wed 4/8
5:00 am-11:19 am
1 stop7h 19m
Saint George
Sat 4/11
4:38 pm-12:35 am
1 stop6h 57m
$264
ChicagoSalt Lake City
ORD - SLC
ORDSLC
Chicago O'Hare Intl
Mon 3/9
7:00 am-2:26 pm
1 stop8h 26m
Salt Lake City
Tue 3/17
6:52 pm-6:39 am
2 stops10h 47m
$264
ChicagoSaint George
ORD - SGU
ORDSGU
Chicago O'Hare Intl
Fri 1/23
5:00 am-10:13 am
1 stop6h 13m
Saint George
Fri 1/30
11:23 am-8:01 pm
1 stop7h 38m
$264
ChicagoSaint George
ORD - SGU
ORDSGU
Chicago O'Hare Intl
Tue 4/7
5:25 pm-12:03 am
1 stop7h 38m
Saint George
Sat 4/11
4:38 pm-12:35 am
1 stop6h 57m
$264
ChicagoSalt Lake City
MDW - SLC
MDWSLC
Chicago Midway
Thu 2/19
8:50 pm-11:25 pm
Nonstop3h 35m
Salt Lake City
Mon 2/23
3:15 pm-10:25 pm
1 stop6h 10m
$271
Showing 1-10 of 60 results
Best time to book a flight from Illinois to Utah
Have a flexible travel schedule? Discover the best time to fly to Utah from Illinois 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 Illinois to Utah
What is the cheapest month to book a flight from Illinois to Utah?
Currently, April is the cheapest month in which you can book a flight from Illinois to Utah (average of $89). Flying from Illinois to Utah in June is currently the most expensive (average of $225). 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 IL to UT?
Find hourly flight availability from Illinois to Utah. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 8, 2026.
When flying from Illinois to Utah, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 12% versus a flight at noon.
What is the cheapest day to fly from Illinois to Utah?
Use this chart to determine the cheapest time to fly round-trip from Illinois to Utah. Price data was last updated on January 3, 2026.
Travelers seeking maximum savings on their Illinois to Utah flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Illinois to Utah
Explore weekly flight availability from Illinois to Utah. 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 8, 2026.
The most flights from USIL to USUT are scheduled on a Thursday (26 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (10 on average).
Reviews of airlines servicing Utah
Get insights into the airlines that provide service to Utah. 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 Utah. Reviews last updated January 8, 2026.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Illinois to Utah 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
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Entertainment
7.5
Crew
8.6
Food
7.0
Overall
8.0
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 Illinois to Utah. 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 Illinois to Utah
See prices for flight routes from nearby airports that may be better suited for you.
Top 6 airlines flying from Illinois to Utah
Discover the top 6 airlines that operate flights from Illinois to Utah. 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 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$90 | Average$216 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$136 | Average$256 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$187 | Average$361 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$201 | Average$469 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$258 | Average$485 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$300 | Average$469 | FlexibilityNo cancel fee | On-time63% |