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$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
dic. 31 — ene. 71
mié. 12/31
mié. 1/7
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 diciembre 1, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/30. 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.
dom. 12/712:36 pmSLC - STL
1 stop22h 36mFrontier
sáb. 12/137:43 pmSTL - SLC
1 stop14h 44mFrontier
Deal found 11/30$207
This Kiwi.com deal was found by Cheapflights users on 11/30. 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.
sáb. 12/132:38 pmSLC - STL
1 stop20h 34mFrontier
lun. 1/57:43 pmSTL - SLC
1 stop28h 38mFrontier
Deal found 11/30$237
This Expedia deal was found by Cheapflights users on 11/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/309:07 pmSLC - STL
1 stop11h 55mMultiple Airlines
mar. 1/67:00 amSTL - SLC
1 stop17h 46mMultiple Airlines
Deal found 11/30$265
This Mytrip deal was found by Cheapflights users on 11/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/62:38 pmSLC - STL
1 stop20h 34mFrontier
dom. 12/79:14 pmSTL - SLC
1 stop15h 27mFrontier
Deal found 11/30$267
This Kiwi.com deal was found by Cheapflights users on 11/28. 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. 12/159:33 pmSLC - ORD
2 stops15h 25mMultiple Airlines
lun. 12/227:00 amORD - SLC
1 stop18h 07mMultiple Airlines
Deal found 11/28$269
This Kiwi.com deal was found by Cheapflights users on 11/28. 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. 12/1510:39 amSLC - ORD
1 stop12h 34mFrontier
lun. 12/227:00 amORD - SLC
1 stop18h 07mFrontier
Deal found 11/28$270
This Kiwi.com deal was found by Cheapflights users on 11/28. 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.
mié. 12/176:23 pmSLC - ORD
2 stops14h 55mFrontier
lun. 12/227:00 amORD - SLC
1 stop5h 37mFrontier
Deal found 11/28$272
This Kiwi.com deal was found by Cheapflights users on 11/28. 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. 12/166:23 pmSLC - ORD
2 stops19h 08mFrontier
mar. 12/237:00 amORD - SLC
1 stop5h 37mFrontier
Deal found 11/28$273
This Kiwi.com deal was found by Cheapflights users on 11/30. 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.
lun. 12/157:20 amSLC - PIA
1 stop12h 01mMultiple Airlines
vie. 12/193:13 pmPIA - SLC
1 stop17h 59mMultiple Airlines
Deal found 11/30$274
This Kiwi.com deal was found by Cheapflights users on 11/30. 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.
mar. 12/309:07 pmSLC - STL
1 stop11h 55mFrontier
mar. 1/65:11 pmSTL - SLC
2 stops40h 26mFrontier
Deal found 11/30$275
This Kiwi.com deal was found by Cheapflights users on 11/28. 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. 12/147:20 amSLC - ORD
1 stop15h 52mFrontier
mar. 12/237:00 amORD - SLC
1 stop5h 37mFrontier
Deal found 11/28$276
This Frontier deal was found by Cheapflights users on 11/28. 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.
lun. 12/154:50 pmSLC - ORD
1 stop6h 22mFrontier
mar. 12/237:00 amORD - SLC
1 stop5h 37mFrontier
Deal found 11/28$279

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 diciembre 1, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$113
(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
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 ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 diciembre 1, 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

jue. 1/8

11:48 am-10:02 am

1 stop21h 14m

Lambert-St Louis

dom. 1/11

9:46 pm-8:30 am

1 stop11h 44m

$179

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

mar. 1/27

3:36 pm-2:46 pm

2 stops22h 10m

Lambert-St Louis

vie. 1/30

7:39 pm-8:44 am

1 stop14h 05m

$188

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

dom. 12/7

12:36 pm-12:12 pm

1 stop22h 36m

Lambert-St Louis

sáb. 12/13

7:43 pm-9:27 am

1 stop14h 44m

$207

Saint GeorgeChicago

SGU - ORD

SGUORD

Saint George

sáb. 2/7

3:20 pm-9:52 pm

1 stop5h 32m

Chicago O'Hare Intl

mar. 2/10

7:20 am-2:41 pm

1 stop8h 21m

$258

Saint GeorgeChicago

SGU - ORD

SGUORD

Saint George

vie. 1/30

5:10 am-11:34 am

1 stop5h 24m

Chicago O'Hare Intl

lun. 2/2

9:01 am-4:05 pm

1 stop8h 04m

$258

Saint GeorgeChicago

SGU - ORD

SGUORD

Saint George

sáb. 5/30

11:30 am-8:22 pm

1 stop7h 52m

Chicago O'Hare Intl

sáb. 6/6

7:15 am-4:04 pm

1 stop9h 49m

$258

Salt Lake CityChicago

SLC - ORD

SLCORD

Salt Lake City

mié. 1/14

10:15 am-11:37 pm

1 stop12h 22m

Chicago O'Hare Intl

vie. 1/16

3:44 pm-8:44 pm

1 stop30h 00m

$272

Salt Lake CityPeoria

SLC - PIA

SLCPIA

Salt Lake City

lun. 12/15

7:20 am-8:21 pm

1 stop12h 01m

Greater Peoria

vie. 12/19

3:13 pm-8:12 am

1 stop17h 59m

$274

Salt Lake CityChicago

SLC - ORD

SLCORD

Salt Lake City

mar. 1/6

3:39 pm-5:02 am

2 stops12h 23m

Chicago O'Hare Intl

lun. 1/12

9:00 am-11:41 pm

1 stop15h 41m

$288

Salt Lake CityChicago

SLC - ORD

SLCORD

Salt Lake City

vie. 2/6

7:14 am-11:50 pm

2 stops15h 36m

Chicago O'Hare Intl

dom. 2/8

3:44 pm-11:41 pm

1 stop8h 57m

$288

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/30

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 $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 1, 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.

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 1, 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
4,252 reviews

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,252 reviews
Southwest
8.0
Very good
4,252 reviews

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Delta
7.9
Good
8,011 reviews
Southwest
8.0
Very good
4,252 reviews

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
United Airlines
7.4
Good
9,056 reviews
Southwest
8.0
Very good
4,252 reviews

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,039 reviews
Southwest
8.0
Very good
4,252 reviews

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Frontier
5.8
Fair
3,098 reviews
Southwest
8.0
Very good
4,252 reviews

Boarding

8.1

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

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, Delta, and United Airlines fly from Utah to Illinois in about 5h 24m. The time it takes to get you to your destination can typically vary by up to 15h 50m. There are 1403 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 Southwest, which is currently one of the cheapest options available, starting at $118. Alaska Airlines flights start at $127 while deals on Frontier start at $152 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 $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.

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 diciembre 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$88Average$218FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$90Average$180FlexibilityNo cancel feeOn-time88%
Spirit AirlinesCheapest$93Average$208FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$181Average$439FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$205Average$458FlexibilityNo cancel feeOn-time71%
DeltaCheapest$230Average$450FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$290Average$471FlexibilityNo cancel feeOn-time63%

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