$52+ 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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — ORD
ene. 3 — ene. 101
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 Utah to Illinois
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 diciembre 4, 2025.
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 diciembre 4, 2025.
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
mar. 12/97:20 amSLC - STL
1 stop25h 54mFrontier
mié. 12/107:43 pmSTL - SLC
1 stop14h 09mFrontier
Deal found 12/2![Frontier logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
jue. 12/112:38 pmSLC - STL
1 stop20h 34mFrontier
sáb. 12/137:43 pmSTL - SLC
1 stop14h 44mFrontier
Deal found 12/2![Frontier logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 12/1. 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.
jue. 12/1112:36 pmSLC - STL
1 stop22h 36mFrontier
dom. 12/1410:44 pmSTL - SLC
1 stop15h 59mFrontier
Deal found 12/1![Frontier logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 12/3. 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.
vie. 12/1210:22 amSLC - STL
1 stop22h 52mFrontier
sáb. 12/137:43 pmSTL - SLC
1 stop14h 44mFrontier
Deal found 12/3![Frontier logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
jue. 12/112:38 pmSLC - STL
1 stop20h 34mFrontier
lun. 12/151:16 pmSTL - SLC
2 stops35h 51mFrontier
Deal found 12/2![Frontier logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 12/3. 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.
vie. 12/1210:22 amSLC - STL
1 stop22h 52mFrontier
dom. 12/1410:44 pmSTL - SLC
1 stop13h 57mFrontier
Deal found 12/3![Frontier logo]()
$238
This Kiwi.com deal was found by Cheapflights users on 12/3. 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.
dom. 12/215:33 pmSLC - ORD
1 stop5h 39mFrontier
vie. 1/29:31 pmORD - SLC
2 stops27h 36mFrontier
Deal found 12/3![Frontier logo]()
$247
This Kiwi.com deal was found by Cheapflights users on 12/3. 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.
vie. 12/1210:22 amSLC - STL
1 stop22h 52mFrontier
lun. 12/151:16 pmSTL - SLC
2 stops35h 51mFrontier
Deal found 12/3![Frontier logo]()
$247
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
jue. 12/112:38 pmSLC - STL
1 stop20h 34mFrontier
mar. 12/163:30 pmSTL - SLC
2 stops33h 37mFrontier
Deal found 12/2![Frontier logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 12/3. 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.
lun. 12/2210:25 pmSLC - ORD
1 stop14h 52mMultiple Airlines
mié. 12/319:09 pmORD - SLC
2 stops36h 03mMultiple Airlines
Deal found 12/3![Multiple Airlines logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 12/3. 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.
lun. 12/2210:25 pmSLC - ORD
1 stop14h 52mFrontier
vie. 1/29:31 pmORD - SLC
2 stops27h 36mFrontier
Deal found 12/3![Frontier logo]()
$252
This Frontier deal was found by Cheapflights users on 12/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/2012:12 pmSLC - STL
1 stop8h 13mFrontier
mié. 12/247:43 pmSTL - SLC
1 stop5h 24mFrontier
Deal found 12/3![Frontier logo]()
$252
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 diciembre 4, 2025.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $129 (Kiwi.com) |
One-way from | $52 (Trip.com) |
Popular in | December |
Cheapest in | September |
Average price | $445 |
Good round-trip deal | $446 or less |
Good one-way deal | $204 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 diciembre 4, 2025.
Use the filters below to find and compare flights from Utah to Illinois that are best for you.
Fly from
Utah
Fly to
Illinois
Route
Depart
Return
Price
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
vie. 12/19
10:25 pm-9:25 pm
1 stop22h 00m
Lambert-St Louis
mar. 12/23
10:10 pm-9:33 pm
1 stop24h 23m
$253
Salt Lake CityChicago
SLC - ORD
SLCORD
Salt Lake City
vie. 2/6
6:16 pm-2:29 pm
1 stop19h 13m
Chicago O'Hare Intl
dom. 2/8
8:00 am-11:41 pm
2 stops16h 41m
$257
Salt Lake CitySt. Louis
SLC - STL
SLCSTL
Salt Lake City
lun. 1/5
12:51 pm-8:07 pm
1 stop6h 16m
Lambert-St Louis
vie. 1/9
7:43 pm-8:37 am
1 stop13h 54m
$257
Salt Lake CityPeoria
SLC - PIA
SLCPIA
Salt Lake City
mié. 2/18
7:30 am-2:10 pm
1 stop5h 40m
Greater Peoria
lun. 2/23
5:25 pm-10:39 pm
1 stop6h 14m
$259
Salt Lake CityChicago
SLC - ORD
SLCORD
Salt Lake City
jue. 1/1
7:21 pm-10:51 am
1 stop14h 30m
Chicago O'Hare Intl
jue. 1/8
6:15 am-6:28 pm
1 stop13h 13m
$261
Salt Lake CityChicago
SLC - ORD
SLCORD
Salt Lake City
lun. 1/19
6:50 am-6:27 pm
2 stops34h 37m
Chicago O'Hare Intl
lun. 2/16
11:45 am-9:44 am
1 stop22h 59m
$264
Salt Lake CityChicago
SLC - ORD
SLCORD
Salt Lake City
mar. 1/6
6:00 am-1:08 pm
1 stop6h 08m
Chicago O'Hare Intl
lun. 1/12
6:40 pm-9:22 pm
Nonstop3h 42m
$268
Salt Lake CityChicago
SLC - MDW
SLCMDW
Salt Lake City
mié. 1/14
8:05 am-3:25 pm
1 stop6h 20m
Chicago Midway
sáb. 1/17
8:25 am-11:05 am
Nonstop3h 40m
$268
Salt Lake CityChicago
SLC - MDW
SLCMDW
Salt Lake City
lun. 12/29
8:58 pm-7:55 pm
1 stop21h 57m
Chicago Midway
dom. 1/4
10:50 pm-8:12 am
1 stop10h 22m
$269
Salt Lake CityChicago
SLC - ORD
SLCORD
Salt Lake City
lun. 1/26
7:00 am-11:50 pm
1 stop15h 50m
Chicago O'Hare Intl
jue. 1/29
3:44 pm-10:31 am
2 stops19h 47m
$270
Showing 1-10 of 60 results
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.
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
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 $71). Flying from Utah to Illinois in June is currently the most expensive (average of $207). 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 diciembre 4, 2025.
One of the essential ways to save on airfare from Utah to Illinois is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 70% 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 December 16, 2024.
Travelers seeking maximum savings on their Utah to Illinois flight should consider departing on Friday evenings when fares are most often at their lowest. Tuesday at noon 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 diciembre 4, 2025.
The most flights from USUT to USIL are scheduled on a Thursday (28 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (15 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 diciembre 4, 2025.
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.
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Comfort
8.0
Entertainment
7.5
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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
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Alternative routes for Utah to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
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 diciembre 4, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$88 | Average$218 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$90 | Average$180 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$93 | Average$208 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$181 | Average$439 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$205 | Average$458 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$230 | Average$450 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$290 | Average$471 | FlexibilityNo cancel fee | On-time63% |