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$82+ 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — ORD
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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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 March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$136
(CheapOair)

One-way from

$82
(FlightHub)

Popular in

February

Cheapest in

September

Average price

$284

Good round-trip deal

$100 or less

Good one-way deal

$62 or less
Provider with most accurate pricing for Salt Lake City-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Salt Lake City-Chicago (CHI) flights.
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From Utah to Illinois
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One-way flight from Utah to Illinois
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($35 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Utah to Illinois.
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Price to beat on a one-way flight from Utah to Illinois.
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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 March 31, 2025.

This CheapOair deal was found by Cheapflights users on 3/31. 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 4/118:50 pmSLC - ORD
Nonstop3h 09mFrontier
Fri 4/185:07 pmORD - SLC
Nonstop3h 43mFrontier
Deal found 3/31$136
This Mytrip deal was found by Cheapflights users on 3/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/88:14 pmSLC - ORD
1 stop8h 11mSpirit Airlines
Mon 5/129:02 pmORD - SLC
1 stop23h 17mSpirit Airlines
Deal found 3/31$176
This Frontier deal was found by Cheapflights users on 3/30. 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.
Thu 5/16:00 amSLC - STL
1 stop8h 07mFrontier
Mon 5/56:53 pmSTL - SLC
1 stop6h 42mFrontier
Deal found 3/30$198
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 4/148:50 pmSLC - ORD
Nonstop3h 09mMultiple Airlines
Thu 4/178:00 amORD - SLC
1 stop6h 29mMultiple Airlines
Deal found 3/30$199
This Trip.com deal was found by Cheapflights users on 3/31. 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.
Thu 5/16:00 amSLC - MDW
1 stop12h 08mFrontier
Sun 5/46:15 amMDW - SLC
1 stop6h 18mFrontier
Deal found 3/31$226
This American Airlines deal was found by Cheapflights users on 3/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/105:15 amSGU - ORD
1 stop8h 46mAmerican Airlines
Tue 6/174:56 pmORD - SGU
1 stop6h 53mAmerican Airlines
Deal found 3/30$258
This Expedia deal was found by Cheapflights users on 3/31. 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.
Mon 4/2812:32 pmSLC - STL
1 stop7h 33mMultiple Airlines
Tue 5/66:30 amSTL - SLC
1 stop9h 06mMultiple Airlines
Deal found 3/31$267
This Sun Country Air deal was found by Cheapflights users on 3/30. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:51 pmSLC - ORD
1 stop22h 24mSun Country Air
Sun 11/211:42 amORD - SLC
1 stop7h 19mSun Country Air
Deal found 3/30$305
This Mytrip deal was found by Cheapflights users on 3/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/282:36 pmSLC - STL
2 stops25h 39mSpirit Airlines
Tue 5/66:10 pmSTL - SLC
3 stops26h 09mSpirit Airlines
Deal found 3/31$345
This Delta deal was found by Cheapflights users on 3/31. 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.
Wed 4/308:45 pmSLC - ORD
Nonstop3h 08mDelta
Mon 5/51:55 pmORD - SLC
Nonstop3h 31mDelta
Deal found 3/31$350
This Southwest deal was found by Cheapflights users on 3/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/126:25 pmSLC - STL
1 stop4h 40mSouthwest
Wed 5/145:20 amSTL - SLC
2 stops7h 50mSouthwest
Deal found 3/29$356
This Delta deal was found by Cheapflights users on 3/30. 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.
Thu 5/89:15 pmSLC - STL
Nonstop2h 44mDelta
Sat 5/107:30 amSTL - SLC
Nonstop3h 09mDelta
Deal found 3/30$359

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 March 31, 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 CityChicago

SLC - ORD

SLCORD

Salt Lake City

Fri 4/11

8:50 pm-12:59 am

Nonstop3h 09m

Chicago O'Hare Intl

Fri 4/18

5:07 pm-7:50 pm

Nonstop3h 43m

$136

Salt Lake CityChicago

SLC - ORD

SLCORD

Salt Lake City

Thu 5/8

8:14 pm-5:25 am

1 stop8h 11m

Chicago O'Hare Intl

Mon 5/12

9:02 pm-7:19 pm

1 stop23h 17m

$176

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 5/1

6:00 am-3:07 pm

1 stop8h 07m

Lambert-St Louis

Mon 5/5

6:53 pm-12:35 am

1 stop6h 42m

$198

Salt Lake CityChicago

SLC - ORD

SLCORD

Salt Lake City

Mon 4/14

8:50 pm-12:59 am

Nonstop3h 09m

Chicago O'Hare Intl

Thu 4/17

8:00 am-1:29 pm

1 stop6h 29m

$199

Salt Lake CityChicago

SLC - MDW

SLCMDW

Salt Lake City

Thu 5/1

6:00 am-7:08 pm

1 stop12h 08m

Chicago Midway

Sun 5/4

6:15 am-11:33 am

1 stop6h 18m

$226

Saint GeorgeChicago

SGU - ORD

SGUORD

Saint George

Tue 6/10

5:15 am-3:01 pm

1 stop8h 46m

Chicago O'Hare Intl

Tue 6/17

4:56 pm-10:49 pm

1 stop6h 53m

$258

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Mon 4/28

12:32 pm-9:05 pm

1 stop7h 33m

Lambert-St Louis

Tue 5/6

6:30 am-2:36 pm

1 stop9h 06m

$267

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Mon 4/28

2:36 pm-5:15 pm

2 stops25h 39m

Lambert-St Louis

Tue 5/6

6:10 pm-7:19 pm

3 stops26h 09m

$345

Salt Lake CityChicago

SLC - ORD

SLCORD

Salt Lake City

Wed 4/30

8:45 pm-12:53 am

Nonstop3h 08m

Chicago O'Hare Intl

Mon 5/5

1:55 pm-4:26 pm

Nonstop3h 31m

$350

Salt Lake CityChicago

SLC - MDW

SLCMDW

Salt Lake City

Wed 4/30

1:30 pm-5:35 pm

Nonstop3h 05m

Chicago Midway

Mon 5/5

8:20 am-10:50 am

Nonstop3h 30m

$350

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 58 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, August is the cheapest month in which you can book a flight from Utah to Illinois (average of $245). Flying from Utah to Illinois in March is currently the most expensive (average of $323). 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 March 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Utah to Illinois as you normally would.

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 March 31, 2025.

The most flights from USUT to USIL are scheduled on a Monday (37 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (17 on average).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 March 31, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Utah to Illinois to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,818 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,276 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,899 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,342 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,614 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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.

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

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $82. Frontier flights start at $87 while deals on Sun Country Air start at $153 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, August is the cheapest month in which you can book a flight from Utah to Illinois (average of $245). Flying from Utah to Illinois in March is currently the most expensive (average of $323). 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

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 Utah to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Utah to Illinois

Discover the top 6 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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$60Average$210FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$88Average$179FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$145Average$566FlexibilityNo cancel feeOn-time71%
DeltaCheapest$151Average$512FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$166Average$471FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$179Average$524FlexibilityNo cancel feeOn-time69%
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