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$50+ 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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — ORD
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
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 febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$100
(Frontier)

One-way from

$50
(Mytrip)

Popular in

February

Cheapest in

August

Average price

$400

Good round-trip deal

$409 or less

Good one-way deal

$223 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. 12% potential increase in price ($43 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in February 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 febrero 20, 2025.

This Frontier deal was found by Cheapflights users on 2/18. 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.
jue. 5/18:29 pmSLC - STL
1 stop11h 40mFrontier
sáb. 5/36:53 pmSTL - SLC
1 stop6h 41mFrontier
Deal found 2/18$100
This Trip.com deal was found by Cheapflights users on 2/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/105:19 pmSLC - ORD
Nonstop3h 14mFrontier
mié. 3/126:45 amORD - SLC
1 stop18h 55mFrontier
Deal found 2/20$102
This Kiwi.com deal was found by Cheapflights users on 2/18. 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. 4/188:49 pmSLC - ORD
Nonstop3h 14mMultiple Airlines
mar. 4/228:00 amORD - SLC
1 stop6h 29mMultiple Airlines
Deal found 2/18$124
This Frontier deal was found by Cheapflights users on 2/20. 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.
mié. 3/123:07 pmSLC - MDW
1 stop8h 10mFrontier
lun. 3/178:44 pmMDW - SLC
1 stop12h 46mFrontier
Deal found 2/20$125
This FlightHub deal was found by Cheapflights users on 2/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/152:36 pmSLC - ORD
1 stop14h 57mSpirit Airlines
mar. 4/228:00 amORD - SLC
1 stop6h 29mSpirit Airlines
Deal found 2/18$138
This American Airlines deal was found by Cheapflights users on 2/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/257:50 amSLC - MLI
1 stop7h 02mAmerican Airlines
mar. 4/15:05 amMLI - SLC
1 stop10h 38mAmerican Airlines
Deal found 2/19$269
This Expedia deal was found by Cheapflights users on 2/18. 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.
vie. 5/28:29 pmSLC - STL
1 stop11h 40mMultiple Airlines
mar. 5/66:30 amSTL - SLC
1 stop9h 06mMultiple Airlines
Deal found 2/18$271
This American Airlines deal was found by Cheapflights users on 2/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 3/87:50 amSLC - PIA
1 stop7h 32mAmerican Airlines
mié. 3/123:33 pmPIA - SLC
1 stop8h 28mAmerican Airlines
Deal found 2/20$289
This United Airlines deal was found by Cheapflights users on 2/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/2412:47 amSLC - MLI
2 stops14h 52mUnited Airlines
mar. 4/15:25 pmMLI - SLC
1 stop6h 20mUnited Airlines
Deal found 2/19$343
This Alaska Airlines deal was found by Cheapflights users on 2/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/1212:03 pmSLC - STL
1 stop10h 56mAlaska Airlines
mar. 3/187:00 amSTL - SLC
1 stop16h 20mAlaska Airlines
Deal found 2/19$343
This United Airlines deal was found by Cheapflights users on 2/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/15:10 amSLC - STL
1 stop6h 37mUnited Airlines
mar. 4/15:35 pmSTL - SLC
1 stop6h 10mUnited Airlines
Deal found 2/18$346
This United Airlines deal was found by Cheapflights users on 2/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/111:59 pmSLC - PIA
2 stops9h 13mUnited Airlines
sáb. 4/122:32 pmPIA - SLC
2 stops8h 43mUnited Airlines
Deal found 2/19$350

Find flights from Utah to Illinois within your budget

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 febrero 20, 2025.

Fly from

Utah

Fly to

Illinois

Route

Depart

Return

Price

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

jue. 5/1

8:29 pm-9:09 am

1 stop11h 40m

Lambert-St Louis

sáb. 5/3

6:53 pm-12:34 am

1 stop6h 41m

$100

Salt Lake CityChicago

SLC - ORD

SLCORD

Salt Lake City

lun. 3/10

5:19 pm-9:33 pm

Nonstop3h 14m

Chicago O'Hare Intl

mié. 3/12

6:45 am-12:40 am

1 stop18h 55m

$102

Salt Lake CityChicago

SLC - ORD

SLCORD

Salt Lake City

vie. 4/18

8:49 pm-1:03 am

Nonstop3h 14m

Chicago O'Hare Intl

mar. 4/22

8:00 am-1:29 pm

1 stop6h 29m

$124

Salt Lake CityChicago

SLC - MDW

SLCMDW

Salt Lake City

mié. 3/12

3:07 pm-12:17 am

1 stop8h 10m

Chicago Midway

lun. 3/17

8:44 pm-8:30 am

1 stop12h 46m

$125

Salt Lake CityChicago

SLC - ORD

SLCORD

Salt Lake City

mar. 4/15

2:36 pm-6:33 am

1 stop14h 57m

Chicago O'Hare Intl

mar. 4/22

8:00 am-1:29 pm

1 stop6h 29m

$138

Salt Lake CityMoline

SLC - MLI

SLCMLI

Salt Lake City

mar. 3/25

7:50 am-3:52 pm

1 stop7h 02m

Moline Quad-City

mar. 4/1

5:05 am-2:43 pm

1 stop10h 38m

$269

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

vie. 5/2

8:29 pm-9:09 am

1 stop11h 40m

Lambert-St Louis

mar. 5/6

6:30 am-2:36 pm

1 stop9h 06m

$271

Salt Lake CityPeoria

SLC - PIA

SLCPIA

Salt Lake City

sáb. 3/8

7:50 am-4:22 pm

1 stop7h 32m

Greater Peoria

mié. 3/12

3:33 pm-11:01 pm

1 stop8h 28m

$289

Salt Lake CityMoline

SLC - MLI

SLCMLI

Salt Lake City

lun. 3/24

12:47 am-4:39 pm

2 stops14h 52m

Moline Quad-City

mar. 4/1

5:25 pm-10:45 pm

1 stop6h 20m

$343

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

mié. 3/12

12:03 pm-11:59 pm

1 stop10h 56m

Lambert-St Louis

mar. 3/18

7:00 am-10:20 pm

1 stop16h 20m

$343

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 49 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.

Travel insights for flights from Utah to Illinois

Get recent, data-driven insights about flights from Utah to Illinois including ideal travel times, pricing trends, and more.

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 $321). 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 febrero 20, 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 febrero 20, 2025.

The most flights from USUT to USIL are scheduled on a Thursday (36 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (14 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 febrero 20, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,692 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,220 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,766 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Crew

8.7

Boarding

8.2

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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 Frontier, which is currently one of the cheapest options available, starting at $50. Spirit Airlines flights start at $78 while deals on Alaska Airlines start at $158 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 $321). 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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$60Average$194FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$88Average$180FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$145Average$557FlexibilityNo cancel feeOn-time71%
DeltaCheapest$151Average$510FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$166Average$389FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$180Average$541FlexibilityNo cancel feeOn-time69%
Spirit AirlinesCheapest$193Average$320FlexibilityNo cancel feeOn-time65%
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