$61+ 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 2/13. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SLC
Feb 20 — Feb 271
1 adult, Economy
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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
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 21, 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 21, 2026.
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.
Sun 3/110:11 pm
STL
- SLC
1 stop11h 19m
Frontier
Fri 3/69:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Deal found 1/21![Frontier logo]()
$126
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.
Sat 2/212:51 pm
STL
- SLC
1 stop18h 53m
Frontier
Tue 2/248:01 pm
SLC
- STL
1 stop18h 52m
Frontier
Deal found 1/19![Frontier logo]()
$128
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.
Sat 2/212:51 pm
STL
- SLC
1 stop18h 53m
Frontier
Thu 2/2610:37 pm
SLC
- STL
1 stop21h 49m
Frontier
Deal found 1/19![Frontier logo]()
$134
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 2/43:46 pm
STL
- SLC
1 stop17h 58m
Frontier
Thu 2/1210:37 pm
SLC
- STL
1 stop21h 49m
Frontier
Deal found 1/20![Frontier logo]()
$136
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 2/43:46 pm
STL
- SLC
1 stop17h 58m
Frontier
Tue 2/108:01 pm
SLC
- STL
1 stop16h 57m
Frontier
Deal found 1/20![Frontier logo]()
$139
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.
Fri 3/68:12 pm
STL
- SLC
1 stop12h 43m
Frontier
Tue 3/109:14 pm
SLC
- STL
1 stop11h 35m
Frontier
Deal found 1/21![Frontier logo]()
$141
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 2/212:51 pm
STL
- SLC
1 stop18h 53m
Frontier
Sat 2/287:20 am
SLC
- STL
1 stop5h 36m
Frontier
Deal found 1/20![Frontier logo]()
$143
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 2/510:01 pm
STL
- SLC
1 stop14h 04m
Frontier
Thu 2/1210:37 pm
SLC
- STL
1 stop21h 49m
Frontier
Deal found 1/20![Frontier logo]()
$153
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/73:46 pm
STL
- SLC
1 stop8h 53m
Frontier
Wed 2/118:00 am
SLC
- STL
1 stop4h 58m
Frontier
Deal found 1/20![Frontier logo]()
$154
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 2/510:01 pm
STL
- SLC
1 stop14h 04m
Frontier
Tue 2/108:01 pm
SLC
- STL
1 stop16h 57m
Frontier
Deal found 1/20![Frontier logo]()
$156
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/75:15 pm
ORD
- SGU
1 stop5h 36m
Delta
Sat 3/146:00 am
SGU
- ORD
1 stop8h 18m
Delta
Deal found 1/20![Delta logo]()
$258
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 3/47:15 am
MDW
- SLC
2 stops26h 29m
Frontier
Sun 3/811:12 am
SLC
- MDW
1 stop12h 37m
Frontier
Deal found 1/20![Frontier logo]()
$262
Find 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 21, 2026.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $126 (Kiwi.com) |
One-way from | $61 (Trip.com) |
Popular in | December |
Cheapest in | October |
Average price | $467 |
Good round-trip deal | $384 or less |
Good one-way deal | $202 or less |
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 21, 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
Tue 3/10
7:20 am-2:39 pm
1 stop8h 19m
Saint George
Sat 3/14
8:55 am-3:18 pm
1 stop5h 23m
$258
ChicagoSaint George
ORD - SGU
ORDSGU
Chicago O'Hare Intl
Sat 3/7
5:15 pm-9:51 pm
1 stop5h 36m
Saint George
Sat 3/14
6:00 am-3:18 pm
1 stop8h 18m
$258
ChicagoSalt Lake City
ORD - SLC
ORDSLC
Chicago O'Hare Intl
Tue 4/21
8:20 am-7:46 pm
2 stops12h 26m
Salt Lake City
Sat 4/25
8:31 pm-6:40 am
1 stop9h 09m
$275
ChicagoSalt Lake City
ORD - SLC
ORDSLC
Chicago O'Hare Intl
Tue 5/12
6:00 am-2:41 pm
1 stop9h 41m
Salt Lake City
Mon 5/18
7:06 pm-6:46 pm
1 stop22h 40m
$275
MolineSalt Lake City
MLI - SLC
MLISLC
Moline Quad-City
Thu 4/16
5:40 pm-11:05 pm
1 stop6h 25m
Salt Lake City
Sun 4/19
4:18 pm-10:45 pm
1 stop5h 27m
$279
ChicagoSalt Lake City
ORD - SLC
ORDSLC
Chicago O'Hare Intl
Mon 5/4
8:50 am-12:49 pm
1 stop28h 59m
Salt Lake City
Sat 5/9
8:31 pm-6:40 am
1 stop9h 09m
$280
BloomingtonSalt Lake City
BMI - SLC
BMISLC
Bloomington-Normal
Mon 2/23
8:05 pm-12:01 pm
1 stop16h 56m
Salt Lake City
Sun 3/8
10:40 pm-8:15 pm
1 stop20h 35m
$282
ChicagoSaint George
ORD - SGU
ORDSGU
Chicago O'Hare Intl
Sat 3/7
6:59 pm-12:30 am
1 stop6h 31m
Saint George
Sat 3/14
4:31 pm-12:51 am
1 stop7h 20m
$288
BloomingtonSalt Lake City
BMI - SLC
BMISLC
Bloomington-Normal
Fri 2/27
8:05 pm-3:05 pm
2 stops20h 00m
Salt Lake City
Thu 3/12
10:45 pm-8:15 pm
1 stop20h 30m
$298
St. LouisSalt Lake City
STL - SLC
STLSLC
Lambert-St Louis
Tue 2/24
7:00 am-2:26 pm
1 stop8h 26m
Salt Lake City
Thu 2/26
11:14 am-11:59 pm
1 stop11h 45m
$298
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 21, 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 21% 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 17, 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 21, 2026.
The most flights from USIL to USUT are scheduled on a Monday (25 on average). You will have fewer flight options on Saturday, 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 21, 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.
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
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.
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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 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$90 | Average$220 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$101 | Average$256 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$174 | Average$351 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$201 | Average$477 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$227 | Average$483 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$300 | Average$471 | FlexibilityNo cancel fee | On-time63% |