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$55+ 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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — ORD
Dec 17 — Dec 241
Wed 12/17
Wed 12/24
1 adult, Economy
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Find flight deals from Utah to Illinois

Cheapest flights from Utah to Illinois
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 November 17, 2025.

This Expedia deal was found by Cheapflights users on 11/16. 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 12/132:38 pmSLC - STL
1 stop20h 34mFrontier
Mon 12/157:43 pmSTL - SLC
1 stop16h 54mFrontier
Deal found 11/16$110
This Expedia deal was found by Cheapflights users on 11/17. 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 12/208:28 pmSLC - STL
1 stop23h 57mFrontier
Mon 12/228:52 pmSTL - SLC
1 stop11h 49mFrontier
Deal found 11/17$138
This Trip.com deal was found by Cheapflights users on 11/15. 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.
Wed 12/37:20 amSLC - STL
2 stops38h 13mFrontier
Wed 12/107:43 pmSTL - SLC
1 stop5h 24mFrontier
Deal found 11/15$148
This Kiwi.com deal was found by Cheapflights users on 11/16. 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 12/1012:32 pmSLC - ORD
1 stop16h 33mMultiple Airlines
Sun 12/149:52 pmORD - SLC
1 stop10h 49mMultiple Airlines
Deal found 11/16$184
This CheapOair deal was found by Cheapflights users on 11/16. 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 12/136:23 pmSLC - MDW
1 stop15h 45mFrontier
Sun 12/147:24 pmMDW - SLC
1 stop13h 17mFrontier
Deal found 11/16$184
This Kiwi.com deal was found by Cheapflights users on 11/15. 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 12/89:33 pmSLC - ORD
2 stops15h 25mMultiple Airlines
Thu 12/119:53 pmORD - SLC
1 stop10h 48mMultiple Airlines
Deal found 11/15$185
This Kiwi.com deal was found by Cheapflights users on 11/16. 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 12/107:20 amSLC - ORD
2 stops13h 28mMultiple Airlines
Fri 12/1210:05 pmORD - SLC
1 stop12h 39mMultiple Airlines
Deal found 11/16$186
This Kiwi.com deal was found by Cheapflights users on 11/16. 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 12/107:20 amSLC - ORD
2 stops13h 28mMultiple Airlines
Thu 12/119:53 pmORD - SLC
1 stop10h 48mMultiple Airlines
Deal found 11/16$187
This Kiwi.com deal was found by Cheapflights users on 11/14. 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 12/77:20 amSLC - ORD
1 stop15h 52mMultiple Airlines
Tue 12/99:06 pmORD - SLC
1 stop21h 22mMultiple Airlines
Deal found 11/14$188
This Kiwi.com deal was found by Cheapflights users on 11/14. 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 12/107:20 amSLC - ORD
2 stops13h 28mMultiple Airlines
Mon 12/1511:01 amORD - SLC
1 stop7h 00mMultiple Airlines
Deal found 11/14$189
This CheapOair deal was found by Cheapflights users on 11/16. 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.
Fri 12/265:33 pmSLC - ORD
1 stop5h 39mFrontier
Thu 1/19:33 pmORD - SLC
1 stop11h 08mFrontier
Deal found 11/16$190
This Kiwi.com deal was found by Cheapflights users on 11/14. 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 12/76:32 pmSLC - ORD
2 stops18h 31mFrontier
Mon 12/89:27 pmORD - SLC
1 stop13h 17mFrontier
Deal found 11/14$191

Cheap flight deals from Utah to Illinois

Keep the following information in mind while searching for Utah to Illinois flight deals. Data was last updated November 17, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$110
(Expedia)

One-way from

$55
(Expedia)

Popular in

December

Cheapest in

September

Average price

$358

Good round-trip deal

$402 or less

Good one-way deal

$194 or less
Provider with most accurate pricing for Salt Lake City-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Salt Lake City-Chicago (CHI) flights.
Search Deals
From Utah to Illinois
Search Deals
One-way flight from Utah to Illinois
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Utah to Illinois.
Search Deals
Price to beat on a one-way flight from Utah to Illinois.
Search Deals

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 November 17, 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

Sat 12/13

2:38 pm-12:12 pm

1 stop20h 34m

Lambert-St Louis

Mon 12/15

7:43 pm-11:37 am

1 stop16h 54m

$110

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Fri 1/16

11:50 am-6:32 pm

1 stop5h 42m

Lambert-St Louis

Mon 1/19

7:01 pm-6:35 pm

2 stops24h 34m

$158

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Fri 1/16

9:31 pm-2:48 pm

1 stop16h 17m

Lambert-St Louis

Fri 1/23

7:39 pm-10:06 am

2 stops15h 27m

$175

Salt Lake CityMoline

SLC - MLI

SLCMLI

Salt Lake City

Thu 12/11

4:19 pm-11:47 pm

1 stop6h 28m

Moline Quad-City

Mon 12/15

6:48 pm-11:59 pm

1 stop6h 11m

$259

Salt Lake CityMoline

SLC - MLI

SLCMLI

Salt Lake City

Wed 12/10

4:25 pm-10:59 pm

1 stop5h 34m

Moline Quad-City

Mon 12/15

6:48 pm-11:59 pm

1 stop6h 11m

$259

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 2/19

6:41 pm-10:02 am

1 stop14h 21m

Lambert-St Louis

Sun 2/22

8:36 pm-6:23 pm

1 stop22h 47m

$259

Salt Lake CityChicago

SLC - MDW

SLCMDW

Salt Lake City

Fri 12/12

7:20 am-10:12 pm

2 stops13h 52m

Chicago Midway

Mon 12/15

12:18 pm-12:07 am

1 stop12h 49m

$261

Salt Lake CityMoline

SLC - MLI

SLCMLI

Salt Lake City

Sat 12/13

2:45 pm-9:11 pm

1 stop5h 26m

Moline Quad-City

Tue 1/6

3:45 pm-10:45 pm

2 stops8h 00m

$264

Saint GeorgeChicago

SGU - MDW

SGUMDW

Saint George

Sat 12/13

6:00 am-6:06 pm

2 stops11h 06m

Chicago Midway

Tue 12/16

1:14 pm-10:01 pm

2 stops9h 47m

$269

Salt Lake CityMoline

SLC - MLI

SLCMLI

Salt Lake City

Thu 12/4

7:15 am-2:54 pm

1 stop6h 39m

Moline Quad-City

Mon 12/8

5:09 am-12:34 pm

1 stop8h 25m

$284

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/15

Showing 1-10 of 60 results
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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 $70). 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 November 17, 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 69% 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 November 17, 2025.

The most flights from USUT to USIL are scheduled on a Friday (32 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (19 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 November 17, 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.
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,244 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
8,007 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
9,013 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,050 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,106 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • How long is the flight from Utah to Illinois?

    Airlines like Frontier, American Airlines, and United Airlines fly from Utah to Illinois in about 5h 26m. The time it takes to get you to your destination can typically vary by up to 15h 08m. There are 1115 mi between Utah and Illinois. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Utah to Illinois one-way?

    To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $125. Frontier flights start at $125 while deals on American Airlines start at $210 one-way.

  • Can I find deals for flights from Utah to Illinois that include hotel bookings?

    Yes. In addition to deals on Utah to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Utah to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Utah to Illinois.

  • Can I find deals for business class flights from Utah to Illinois?

    Yes. Cheapflights offers flight deals from Utah to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • 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 $70). 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.

See more FAQs

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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.
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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 November 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$89Average$226FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$90Average$180FlexibilityNo cancel feeOn-time88%
Spirit AirlinesCheapest$93Average$249FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$178Average$459FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$202Average$457FlexibilityNo cancel feeOn-time71%
DeltaCheapest$207Average$442FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$282Average$471FlexibilityNo cancel feeOn-time63%

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