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$50+ 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 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
Tue 2/25
Tue 3/4
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 February 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 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. 12% potential increase in price ($43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Salt Lake City to Illinois.
Search Deals
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 February 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.
Thu 5/18:29 pmSLC - STL
1 stop11h 40mFrontier
Sat 5/36:53 pmSTL - SLC
1 stop6h 41mFrontier
Deal found 2/18$100
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/118:49 pmSLC - ORD
Nonstop3h 14mFrontier
Mon 4/145:06 pmORD - SLC
Nonstop3h 43mFrontier
Deal found 2/19$105
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/103:07 pmSLC - MDW
1 stop8h 10mFrontier
Wed 3/196:40 amMDW - SLC
1 stop8h 27mFrontier
Deal found 2/19$110
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.
Fri 4/188:49 pmSLC - ORD
Nonstop3h 14mMultiple Airlines
Tue 4/228:00 amORD - SLC
1 stop6h 29mMultiple Airlines
Deal found 2/18$124
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.
Tue 4/152:36 pmSLC - ORD
1 stop14h 57mSpirit Airlines
Tue 4/228:00 amORD - SLC
1 stop6h 29mSpirit Airlines
Deal found 2/18$138
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.
Tue 4/12:35 pmSLC - PIA
1 stop5h 16mUnited Airlines
Sat 4/125:21 pmPIA - SLC
1 stop6h 24mUnited Airlines
Deal found 2/19$259
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.
Tue 3/257:50 amSLC - MLI
1 stop7h 02mAmerican Airlines
Tue 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.
Fri 5/28:29 pmSLC - STL
1 stop11h 40mMultiple Airlines
Tue 5/66:30 amSTL - SLC
1 stop9h 06mMultiple Airlines
Deal found 2/18$271
This American Airlines deal was found by Cheapflights users on 2/19. 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.
Thu 3/61:21 pmSLC - PIA
1 stop7h 50mAmerican Airlines
Mon 3/108:00 amPIA - SLC
1 stop5h 29mAmerican Airlines
Deal found 2/19$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.
Mon 3/2412:47 amSLC - MLI
2 stops14h 52mUnited Airlines
Tue 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.
Wed 3/1212:03 pmSLC - STL
1 stop10h 56mAlaska Airlines
Tue 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.
Tue 4/15:10 amSLC - STL
1 stop6h 37mUnited Airlines
Tue 4/15:35 pmSTL - SLC
1 stop6h 10mUnited Airlines
Deal found 2/18$346

Find flights from Salt Lake City to Illinois within your budget

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 February 20, 2025.

Fly from

Salt Lake City

Fly to

Illinois

Route

Depart

Return

Price

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 5/1

8:29 pm-9:09 am

1 stop11h 40m

Lambert-St Louis

Sat 5/3

6:53 pm-12:34 am

1 stop6h 41m

$100

Salt Lake CityChicago

SLC - ORD

SLCORD

Salt Lake City

Fri 4/11

8:49 pm-1:03 am

Nonstop3h 14m

Chicago O'Hare Intl

Mon 4/14

5:06 pm-7:49 pm

Nonstop3h 43m

$105

Salt Lake CityChicago

SLC - MDW

SLCMDW

Salt Lake City

Mon 3/10

3:07 pm-12:17 am

1 stop8h 10m

Chicago Midway

Wed 3/19

6:40 am-2:07 pm

1 stop8h 27m

$110

Salt Lake CityChicago

SLC - ORD

SLCORD

Salt Lake City

Fri 4/18

8:49 pm-1:03 am

Nonstop3h 14m

Chicago O'Hare Intl

Tue 4/22

8:00 am-1:29 pm

1 stop6h 29m

$124

Salt Lake CityChicago

SLC - ORD

SLCORD

Salt Lake City

Tue 4/15

2:36 pm-6:33 am

1 stop14h 57m

Chicago O'Hare Intl

Tue 4/22

8:00 am-1:29 pm

1 stop6h 29m

$138

Salt Lake CityPeoria

SLC - PIA

SLCPIA

Salt Lake City

Tue 4/1

2:35 pm-8:51 pm

1 stop5h 16m

Greater Peoria

Sat 4/12

5:21 pm-10:45 pm

1 stop6h 24m

$259

Salt Lake CityMoline

SLC - MLI

SLCMLI

Salt Lake City

Tue 3/25

7:50 am-3:52 pm

1 stop7h 02m

Moline Quad-City

Tue 4/1

5:05 am-2:43 pm

1 stop10h 38m

$269

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Fri 5/2

8:29 pm-9:09 am

1 stop11h 40m

Lambert-St Louis

Tue 5/6

6:30 am-2:36 pm

1 stop9h 06m

$271

Salt Lake CityPeoria

SLC - PIA

SLCPIA

Salt Lake City

Thu 3/6

1:21 pm-10:11 pm

1 stop7h 50m

Greater Peoria

Mon 3/10

8:00 am-12:29 pm

1 stop5h 29m

$289

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Wed 3/12

12:03 pm-11:59 pm

1 stop10h 56m

Lambert-St Louis

Tue 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 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.

Travel insights for flights from Salt Lake City to Illinois

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

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 February 20, 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 February 20, 2025.

The most flights from SLC 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 February 20, 2025.
To help decide which airline to fly from Salt Lake City to Illinois, see what other customers have to say about Southwest, Alaska Airlines and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,412 reviews

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Food

7.1

Crew

8.7

Overall

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
4,412 reviews
Southwest
8.1
Very good
4,412 reviews

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Food

7.1

Crew

8.7

Overall

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
9,691 reviews
Southwest
8.1
Very good
4,412 reviews

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Food

7.1

Crew

8.7

Overall

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
8,227 reviews
Southwest
8.1
Very good
4,412 reviews

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Food

7.1

Crew

8.7

Overall

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
4,412 reviews

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Food

7.1

Crew

8.7

Overall

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
8,771 reviews
Southwest
8.1
Very good
4,412 reviews

Entertainment

7.6

Boarding

8.2

Comfort

8.1

Food

7.1

Crew

8.7

Overall

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 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.

  • 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 Frontier ($50), Spirit Airlines ($80), and Alaska Airlines ($158).

  • 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 - Lambert-St Louis and Salt Lake City - Chicago Midway.

  • 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 Royal Jordanian (91%), Lufthansa (85%) and Scandinavian Airlines (83%).

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

    Looking at all options, your cheapest flight can be booked for $179. While the most popular route (Salt Lake City - Chicago O'Hare Intl) can be booked for $138 on average our data indicates $897 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$60Average$194FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$145Average$553FlexibilityNo cancel feeOn-time71%
DeltaCheapest$151Average$445FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$166Average$389FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$180Average$543FlexibilityNo cancel feeOn-time69%
Spirit AirlinesCheapest$193Average$320FlexibilityNo cancel feeOn-time65%
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