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$56+ 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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — ORD
Jan 25 — Feb 11
Sat 1/25
Sat 2/1
1 adult, Economy
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Cheap flight deals from Salt Lake City to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Salt Lake City (SLC) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 20, 2025.

Round-trip from

$115
(Frontier)

One-way from

$56
(Frontier)
From Salt Lake City to Illinois
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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 January 20, 2025.

This Frontier deal was found by Cheapflights users on 1/19. 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.
Thu 4/108:55 pmSLC - STL
1 stop11h 11mFrontier
Mon 4/146:51 pmSTL - SLC
1 stop6h 44mFrontier
Deal found 1/19$130
This Trip.com deal was found by Cheapflights users on 1/20. 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.
Thu 4/1012:40 pmSLC - MDW
1 stop8h 47mFrontier
Wed 4/166:40 amMDW - SLC
1 stop26h 14mFrontier
Deal found 1/20$137
This Trip.com deal was found by Cheapflights users on 1/20. 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.
Tue 3/46:00 amSLC - ORD
1 stop6h 25mFrontier
Tue 3/116:45 amORD - SLC
1 stop18h 55mFrontier
Deal found 1/20$138
This Justfly.com deal was found by Cheapflights users on 1/20. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/2512:09 pmSLC - ORD
1 stop5h 47mMultiple Airlines
Mon 3/37:54 pmORD - SLC
1 stop19h 23mMultiple Airlines
Deal found 1/20$157
This eDestinos deal was found by Cheapflights users on 1/20. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/812:09 pmSLC - ORD
1 stop8h 43mSpirit Airlines
Mon 2/1010:47 pmORD - SLC
1 stop13h 27mSpirit Airlines
Deal found 1/20$215
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/41:12 pmSLC - MLI
1 stop6h 30mUnited Airlines
Sat 2/83:59 pmMLI - SLC
1 stop7h 55mUnited Airlines
Deal found 1/20$249
This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/66:00 amSLC - MLI
1 stop9h 25mDelta
Mon 2/105:05 pmMLI - SLC
1 stop7h 37mDelta
Deal found 1/20$289
This Sun Country Air deal was found by Cheapflights users on 1/20. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/56:40 pmSLC - ORD
1 stop23h 31mSun Country Air
Thu 7/108:10 pmORD - SLC
1 stop22h 32mSun Country Air
Deal found 1/20$310
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/48:00 amSLC - PIA
1 stop5h 58mUnited Airlines
Sat 2/83:36 pmPIA - SLC
1 stop8h 18mUnited Airlines
Deal found 1/20$338
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 2/195:09 amSLC - MLI
1 stop8h 41mAmerican Airlines
Sat 2/2211:31 amMLI - SLC
2 stops9h 11mAmerican Airlines
Deal found 1/20$354
This Delta deal was found by Cheapflights users on 1/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/78:45 pmSLC - STL
Nonstop2h 53mDelta
Wed 7/162:15 pmSTL - SLC
Nonstop3h 09mDelta
Deal found 1/19$359
This Orbitz deal was found by Cheapflights users on 1/18. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1912:40 pmSLC - STL
1 stop10h 19mMultiple Airlines
Mon 3/247:03 pmSTL - SLC
1 stop6h 37mMultiple Airlines
Deal found 1/18$367

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 January 20, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Fri 2/21

12:36 pm-10:08 pm

1 stop8h 32m

Lambert-St Louis

Sat 3/1

8:52 pm-8:40 am

1 stop12h 48m

$115

Salt Lake CityChicago

SLC - MDW

SLCMDW

Salt Lake City

Thu 4/10

12:40 pm-10:27 pm

1 stop8h 47m

Chicago Midway

Wed 4/16

6:40 am-7:54 am

1 stop26h 14m

$137

Salt Lake CityChicago

SLC - ORD

SLCORD

Salt Lake City

Fri 2/21

3:07 pm-12:44 am

1 stop8h 37m

Chicago O'Hare Intl

Sat 2/22

7:59 pm-8:40 am

1 stop13h 41m

$139

Salt Lake CityChicago

SLC - ORD

SLCORD

Salt Lake City

Wed 2/12

6:00 am-1:25 pm

1 stop6h 25m

Chicago O'Hare Intl

Mon 2/17

9:56 pm-11:14 am

1 stop14h 18m

$170

Salt Lake CityChicago

SLC - ORD

SLCORD

Salt Lake City

Sat 2/8

12:09 pm-9:52 pm

1 stop8h 43m

Chicago O'Hare Intl

Mon 2/10

10:47 pm-11:14 am

1 stop13h 27m

$211

Salt Lake CityMoline

SLC - MLI

SLCMLI

Salt Lake City

Sat 2/8

8:00 am-8:42 pm

2 stops11h 42m

Moline Quad-City

Mon 2/17

5:35 pm-11:00 pm

1 stop6h 25m

$278

Salt Lake CityMoline

SLC - MLI

SLCMLI

Salt Lake City

Thu 2/6

6:00 am-4:25 pm

1 stop9h 25m

Moline Quad-City

Mon 2/10

5:05 pm-11:42 pm

1 stop7h 37m

$289

Salt Lake CityChicago

SLC - ORD

SLCORD

Salt Lake City

Sat 7/5

6:40 pm-7:11 pm

1 stop23h 31m

Chicago O'Hare Intl

Thu 7/10

8:10 pm-5:42 pm

1 stop22h 32m

$310

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Sun 2/23

9:28 pm-9:16 am

1 stop10h 48m

Lambert-St Louis

Tue 3/4

6:10 am-5:23 pm

2 stops12h 13m

$322

Salt Lake CityPeoria

SLC - PIA

SLCPIA

Salt Lake City

Tue 2/4

8:00 am-2:58 pm

1 stop5h 58m

Greater Peoria

Sat 2/8

3:36 pm-10:54 pm

1 stop8h 18m

$338

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

Showing 1-10 of 55 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 $320). 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 January 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 January 20, 2025.

The most flights from SLC to USIL are scheduled on a Monday (31 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (19 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 January 20, 2025.
To help decide which airline to fly from Salt Lake City to Illinois, see what other customers have to say about Spirit Airlines, Frontier 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
4,659 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Overall

8.1

Food

7.2

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,659 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Overall

8.1

Food

7.2

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,696 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Overall

8.1

Food

7.2

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Overall

8.1

Food

7.2

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,982 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Overall

8.1

Food

7.2

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,659 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Overall

8.1

Food

7.2

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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 ($56), American Airlines ($100), and United Airlines ($105).

  • 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 Frontier (100%), Royal Jordanian (88%) and SkyWest Airlines (86%).

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

    Looking at all options, your cheapest flight can be booked for $174. While the most popular route (Salt Lake City - Chicago O'Hare Intl) can be booked for $131 on average our data indicates $1,165 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 $320). 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 January 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$61Average$195FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$123Average$320FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$146Average$542FlexibilityNo cancel feeOn-time71%
DeltaCheapest$151Average$425FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$166Average$385FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$180Average$560FlexibilityNo cancel feeOn-time69%
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