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$59+ Cheap flights from Salt Lake City (SLC) 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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — ORD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Salt Lake City to Illinois

Keep the following information in mind while searching for Salt Lake City to Illinois flight deals. Data was last updated September 11, 2025.

Round-trip from

$128
(Kiwi.com)

One-way from

$59
(Trip.com)

Popular in

May

Cheapest in

November

Average price

$264

Good round-trip deal

$305 or less

Good one-way deal

$225 or less
From Salt Lake City to Illinois
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One-way flight from Salt Lake City to Illinois
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Highest demand for flights based on searches. 16% potential increase in price ($62 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Salt Lake City to Illinois.
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Price to beat on a one-way flight from Salt Lake City to Illinois.
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Find flight deals from Salt Lake City to Illinois

Cheapest flights from Salt Lake City to Illinois
Explore the most affordable flight options available from Salt Lake City to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Tue 10/2812:35 pmSLC - STL
1 stop19h 32mFrontier
Sat 11/87:45 pmSTL - SLC
1 stop12h 47mFrontier
Deal found 9/10$128
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 11/28:10 pmSLC - STL
1 stop11h 57mFrontier
Sat 11/87:45 pmSTL - SLC
1 stop12h 47mFrontier
Deal found 9/10$131
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 11/94:50 pmSLC - STL
1 stop15h 17mFrontier
Wed 11/127:45 pmSTL - SLC
1 stop12h 47mFrontier
Deal found 9/11$135
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Thu 10/29:45 pmSLC - STL
1 stop10h 21mFrontier
Sun 10/57:55 pmSTL - SLC
1 stop12h 37mFrontier
Deal found 9/11$147
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 9/248:45 amSLC - STL
1 stop23h 21mFrontier
Wed 10/298:40 pmSTL - SLC
1 stop15h 55mFrontier
Deal found 9/10$149
This Frontier deal was found by Cheapflights users on 9/10. 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.
Mon 9/229:45 pmSLC - STL
1 stop10h 21mFrontier
Fri 9/262:38 pmSTL - SLC
1 stop6h 09mFrontier
Deal found 9/10$154
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Tue 9/231:42 pmSLC - STL
1 stop18h 24mFrontier
Sat 9/277:55 pmSTL - SLC
1 stop12h 37mFrontier
Deal found 9/9$155
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Tue 10/1412:30 pmSLC - STL
1 stop19h 37mFrontier
Fri 10/1710:59 pmSTL - SLC
1 stop13h 46mFrontier
Deal found 9/9$157
This Trip.com deal was found by Cheapflights users on 9/11. 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 11/68:10 pmSLC - STL
1 stop11h 57mFrontier
Sun 11/912:10 pmSTL - SLC
1 stop6h 00mFrontier
Deal found 9/11$158
This Trip.com deal was found by Cheapflights users on 9/11. 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.
Tue 9/238:45 amSLC - STL
1 stop23h 21mFrontier
Wed 9/247:55 pmSTL - SLC
1 stop19h 30mFrontier
Deal found 9/11$162
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Sat 9/209:58 pmSLC - STL
1 stop10h 08mFrontier
Thu 9/257:55 pmSTL - SLC
1 stop12h 37mFrontier
Deal found 9/9$163
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Thu 9/189:45 pmSLC - ORD
1 stop25h 14mFrontier
Sun 9/216:00 amORD - SLC
1 stop26h 32mFrontier
Deal found 9/11$170

Cheapflights Fare Finder

 
Customize your flight search to find flights from Salt Lake City 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 September 11, 2025.
Use the filters below to find and compare flights from Salt Lake City to Illinois that are best for you.

Fly from

Salt Lake City

Fly to

Illinois

Route

Depart

Return

Price

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Mon 9/22

9:45 pm-9:06 am

1 stop10h 21m

Lambert-St Louis

Thu 9/25

7:55 pm-7:32 am

1 stop12h 37m

$163

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Wed 9/24

1:42 pm-9:06 am

1 stop18h 24m

Lambert-St Louis

Thu 9/25

7:55 pm-7:32 am

1 stop12h 37m

$163

Salt Lake CityChicago

SLC - ORD

SLCORD

Salt Lake City

Sat 10/25

5:40 pm-9:43 pm

Nonstop3h 03m

Chicago O'Hare Intl

Tue 10/28

7:50 am-10:15 am

Nonstop3h 25m

$177

Salt Lake CityChicago

SLC - ORD

SLCORD

Salt Lake City

Tue 10/21

2:30 pm-6:41 pm

Nonstop3h 11m

Chicago O'Hare Intl

Tue 10/28

7:36 pm-10:05 pm

Nonstop3h 29m

$177

Salt Lake CityChicago

SLC - ORD

SLCORD

Salt Lake City

Sat 10/25

5:40 pm-9:43 pm

Nonstop3h 03m

Chicago O'Hare Intl

Mon 10/27

7:50 am-10:15 am

Nonstop3h 25m

$180

Salt Lake CityChicago

SLC - ORD

SLCORD

Salt Lake City

Mon 11/24

2:36 pm-6:45 pm

Nonstop3h 09m

Chicago O'Hare Intl

Fri 11/28

7:33 am-10:09 am

Nonstop3h 36m

$181

Salt Lake CityChicago

SLC - ORD

SLCORD

Salt Lake City

Fri 10/24

2:30 pm-6:41 pm

Nonstop3h 11m

Chicago O'Hare Intl

Mon 10/27

7:50 am-10:15 am

Nonstop3h 25m

$181

Salt Lake CityChicago

SLC - ORD

SLCORD

Salt Lake City

Mon 10/27

5:40 pm-9:43 pm

Nonstop3h 03m

Chicago O'Hare Intl

Thu 10/30

2:10 pm-4:38 pm

Nonstop3h 28m

$182

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Mon 9/22

9:45 pm-9:06 am

1 stop10h 21m

Lambert-St Louis

Sun 9/28

2:38 pm-10:42 am

1 stop21h 04m

$193

Salt Lake CityChicago

SLC - MDW

SLCMDW

Salt Lake City

Wed 10/22

8:20 am-12:25 pm

Nonstop3h 05m

Chicago Midway

Wed 10/29

8:45 pm-11:10 pm

Nonstop3h 25m

$203

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 60 results
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Best time to book a flight from Salt Lake City to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Salt Lake City 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 Salt Lake City to Illinois

What is the cheapest month to book a flight from Salt Lake City to Illinois?

Currently, August is the cheapest month in which you can book a flight from Salt Lake City to Illinois (average of $245). Flying from Salt Lake City 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 SLC to IL?

Find hourly flight availability from Salt Lake City 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 September 11, 2025.

When flying from Salt Lake City to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Salt Lake City to Illinois

Explore weekly flight availability from Salt Lake City 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 September 11, 2025.

The most flights from SLC to USIL are scheduled on a Thursday (30 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 on average).

How much does it cost to fly round-trip from Salt Lake City to Illinois?

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 September 11, 2025.
Read through reviews of airlines operating flights from Salt Lake City to Illinois, such as Southwest, Delta, and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

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
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

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
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

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
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

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
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

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
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Boarding

8.1

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

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 Salt Lake City to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Salt Lake City to Illinois?

    Located just 5.7 mi from the city center, Salt Lake City (SLC) is the airport most travelers will use when flying to Illinois from Salt Lake City.

  • How long is the flight from Salt Lake City to Illinois?

    Frontier, Delta, and Southwest can get you from Salt Lake City to Illinois in just under 3h 03m. Your travel time can differ by up to 7h 18m. Airlines will cover a distance of 1246 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Salt Lake City to Illinois one-way?

    The cheapest airlines for a one-way flight from Salt Lake City to Illinois are Southwest ($110), United Airlines ($115), and Hawaiian Airlines ($124).

  • What are the most popular routes from Salt Lake City to Illinois?

    The most popular flight routes from Salt Lake City to Illinois are Salt Lake City - Chicago O'Hare Intl, Salt Lake City - Chicago Midway and Salt Lake City - Lambert-St Louis.

  • What are the most reliable airlines from Salt Lake City to Illinois?

    The top 3 most reliable airlines when flying from Salt Lake City to Illinois are SWISS (97%), SkyWest Airlines (93%) and Cathay Pacific (83%).

  • What are the cheapest flights from Salt Lake City to Illinois?

    Looking at all options, your cheapest flight can be booked for $153. While the most popular route (Salt Lake City - Chicago O'Hare Intl) can be booked for $149 on average, our data indicates $1,208 when flying from Salt Lake City to Illinois.

  • Can I find deals for flights from Salt Lake City to Illinois that include hotel bookings?

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

  • How can I find direct flights from Salt Lake City to Illinois?

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

  • Can I find deals for business class flights from Salt Lake City to Illinois?

    Yes. Cheapflights offers flight deals from Salt Lake City 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 Salt Lake City to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Salt Lake City to Illinois (average of $245). Flying from Salt Lake City 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.

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Alternative routes for Salt Lake City 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 Salt Lake City to Illinois

Discover the top 6 airlines that operate flights from Salt Lake City 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$88Average$220FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$93Average$249FlexibilityNo cancel feeOn-time65%
DeltaCheapest$174Average$417FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$179Average$491FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$186Average$474FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$200Average$467FlexibilityNo cancel feeOn-time63%

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