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

The cheapest airlines for a one-way flight from Illinois to Salt Lake City are Frontier ($73), Spirit Airlines ($116), and Delta ($149).

In terms of precipitation, rainfall in Salt Lake City ranges from 0.6 - 2.0 inches per month. April is typically the wettest month, when rainfall can reach 2.0 in. July is typically the driest time to visit Salt Lake City when rainfall is around 0.6 in.

If weather is an important factor for your trip to Salt Lake City, 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 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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

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

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

While on average a flight from Illinois to Salt Lake City is generally $649, our data shows the cheapest flight currently is $138. When looking at the most popular route, (Chicago O'Hare Intl - Salt Lake City), you can expect to pay $134 for that flight.

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

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Illinois to Salt Lake City on time: KLM (90%), WestJet (83%), Air France (80%).

What are the most popular airlines that fly from Illinois to Salt Lake City?

Before booking your flight from Illinois to Salt Lake City check out the most popular airlines for this route: American Airlines, Delta or Frontier.

How far in advance should I book a flight from Illinois to Salt Lake City?

Users have found that booking a flight from Illinois to Salt Lake City at least 16 days early can save you up to 60% on average compared to booking a flight this week. If booking 16 days before your flight isn’t an option for you, users have found flights from Illinois to Salt Lake City for as little as $260 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $340 for flights departing within the next 3 days.

What is the cheapest month to fly from Illinois to Salt Lake City?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, October can be a great choice for travel to Salt Lake City. Flights to Salt Lake City from Illinois in October are about $379 on average during October, but can be found for as low as $106.

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

Salt Lake City (SLC), located 5.7 mi from the city center, is the airport you fly into when you book flights from Illinois to Salt Lake City.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Illinois to Salt Lake City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$73+ Flights from Illinois to Salt Lake City

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Illinois to Salt Lake City with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Illinois to Salt Lake City

Round-trip from	$155 (Frontier)
One-way from	$73 (Priceline)
Popular in	December
Cheapest in	October
Average price	$320
Good round-trip deal	$278 or less
Good one-way deal	$179 or less

From Illinois to Salt Lake City

Search Deals

One-way flight from Illinois to Salt Lake City

Search Deals

Highest demand for flights based on searches. 3% potential increase in price ($12 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2025

Search Deals

Price to beat on a round-trip flight from Illinois to Salt Lake City.

Search Deals

Price to beat on a one-way flight from Illinois to Salt Lake City.

Search Deals

Find flight deals from Illinois to Salt Lake City

Cheapest flights from Illinois to Salt Lake City
Explore the most affordable flight options available from Illinois to Salt Lake City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2025.

Thu 9/1110:49 amSTL - SLC

1 stop5h 56mFrontier

Sat 9/209:58 pmSLC - STL

1 stop10h 08mFrontier

Deal found 8/15

$155

Mon 9/152:38 pmSTL - SLC

1 stop5h 50mFrontier

Sat 9/209:58 pmSLC - STL

1 stop10h 08mFrontier

Deal found 8/15

$160

Sun 10/1210:17 amSTL - SLC

1 stop10h 46mFrontier

Tue 10/218:45 amSLC - STL

1 stop23h 22mFrontier

Deal found 8/14

$162

Fri 9/127:55 pmSTL - SLC

1 stop5h 19mFrontier

Fri 9/199:45 pmSLC - STL

1 stop10h 21mFrontier

Deal found 8/15

$163

Fri 9/127:55 pmSTL - SLC

1 stop5h 19mFrontier

Mon 9/154:02 pmSLC - STL

1 stop16h 04mFrontier

Deal found 8/15

$165

Sat 9/134:58 pmSTL - SLC

1 stop18h 16mFrontier

Sat 9/208:45 amSLC - STL

1 stop23h 21mFrontier

Deal found 8/16

$167

Tue 9/97:55 pmSTL - SLC

1 stop17h 51mFrontier

Mon 9/229:45 pmSLC - STL

1 stop10h 21mFrontier

Deal found 8/15

$170

Tue 9/97:55 pmSTL - SLC

1 stop17h 51mFrontier

Sat 9/138:45 amSLC - STL

1 stop23h 21mFrontier

Deal found 8/15

$171

Thu 10/1610:17 amSTL - SLC

1 stop10h 46mFrontier

Sun 10/1910:05 pmSLC - STL

1 stop10h 02mFrontier

Deal found 8/15

$173

Sat 9/137:55 pmSTL - SLC

1 stop12h 37mFrontier

Tue 9/161:42 pmSLC - STL

1 stop18h 24mFrontier

Deal found 8/15

$174

Fri 9/127:55 pmSTL - SLC

1 stop27h 31mFrontier

Mon 9/229:45 pmSLC - STL

1 stop10h 21mFrontier

Deal found 8/15

$175

Thu 9/1110:49 amSTL - SLC

1 stop5h 56mFrontier

Sun 9/219:45 pmSLC - STL

1 stop10h 21mFrontier

Deal found 8/15

$176

Best flights from Illinois to Salt Lake City
Discover carefully curated flight deals from Illinois to Salt Lake City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 17, 2025.

Thu 9/1110:49 amSTL - SLC

1 stop5h 56mFrontier

Thu 9/189:45 pmSLC - STL

1 stop10h 21mFrontier

Deal found 8/15

$155

Tue 9/307:20 amORD - SLC

1 stop16h 06mMultiple Airlines

Tue 10/73:34 pmSLC - ORD

2 stops31h 19mMultiple Airlines

Deal found 8/16

$186

Thu 12/1111:24 amMLI - SLC

1 stop8h 51mAmerican Airlines

Mon 12/1512:03 pmSLC - MLI

1 stop7h 27mAmerican Airlines

Deal found 8/17

$259

Sun 9/1410:39 amSTL - SLC

1 stop6h 06mFrontier

Sat 9/209:58 pmSLC - STL

1 stop10h 08mFrontier

Deal found 8/15

$155

Wed 11/193:30 pmPIA - SLC

1 stop8h 00mUnited Airlines

Sat 11/222:45 pmSLC - PIA

1 stop5h 11mUnited Airlines

Deal found 8/15

$339

Thu 9/1110:49 amSTL - SLC

1 stop5h 56mFrontier

Sat 9/209:58 pmSLC - STL

1 stop10h 08mFrontier

Deal found 8/15

$155

Sun 10/1210:17 amSTL - SLC

1 stop10h 46mFrontier

Sun 10/1910:05 pmSLC - STL

1 stop10h 02mFrontier

Deal found 8/15

$155

Sat 9/68:25 amORD - SLC

2 stops11h 18mMultiple Airlines

Wed 9/109:29 amSLC - ORD

1 stop8h 22mMultiple Airlines

Deal found 8/14

$190

Fri 10/247:52 pmSTL - SLC

1 stop5h 07mFrontier

Sun 10/268:58 pmSLC - STL

1 stop11h 34mFrontier

Deal found 8/15

$155

Thu 9/1110:49 amSTL - SLC

1 stop5h 56mFrontier

Sun 9/149:45 pmSLC - STL

1 stop10h 21mFrontier

Deal found 8/16

$155

Thu 9/1110:49 amSTL - SLC

1 stop5h 56mFrontier

Fri 9/199:45 pmSLC - STL

1 stop10h 21mFrontier

Deal found 8/15

$155

Sun 9/1412:36 pmMLI - SLC

1 stop20h 58mMultiple Airlines

Sat 9/279:29 amSLC - MLI

1 stop25h 17mMultiple Airlines

Deal found 8/15

$230

Last-minute flights from Illinois to Salt Lake City
Discover last-minute flight deals from Illinois to Salt Lake City. Data last updated August 17, 2025 and is based on user searches.

Fri 8/227:54 pmSTL - SLC

1 stop5h 25mFrontier

Fri 9/51:25 pmSLC - STL

1 stop6h 15mFrontier

Deal found 8/15

$174

Fri 8/2211:44 amORD - SLC

1 stop13h 35mFrontier

Tue 8/2612:52 pmSLC - ORD

1 stop7h 50mFrontier

Deal found 8/14

$185

Fri 8/226:00 amORD - SLC

1 stop19h 19mFrontier

Sun 8/249:59 pmSLC - ORD

1 stop11h 38mFrontier

Deal found 8/15

$187

Fri 8/2211:44 amORD - SLC

1 stop25h 55mFrontier

Mon 8/253:45 pmSLC - ORD

1 stop7h 47mFrontier

Deal found 8/16

$203

Sat 8/237:00 amORD - SLC

1 stop16h 24mFrontier

Tue 8/268:00 amSLC - ORD

1 stop12h 42mFrontier

Deal found 8/16

$184

Sat 8/237:00 amORD - SLC

1 stop6h 39mFrontier

Sat 8/239:59 pmSLC - ORD

1 stop11h 38mFrontier

Deal found 8/16

$194

Sun 8/246:47 pmSTL - SLC

1 stop17h 05mFrontier

Wed 9/312:52 pmSLC - STL

1 stop19h 14mFrontier

Deal found 8/15

$197

Mon 8/257:54 pmSTL - SLC

1 stop5h 25mFrontier

Tue 9/212:52 pmSLC - STL

1 stop19h 19mFrontier

Deal found 8/15

$180

Mon 8/256:00 amORD - SLC

1 stop7h 39mFrontier

Wed 8/2712:52 pmSLC - ORD

1 stop7h 50mFrontier

Deal found 8/16

$182

Tue 8/267:54 pmSTL - SLC

1 stop27h 30mFrontier

Thu 9/44:10 pmSLC - STL

1 stop20h 43mFrontier

Deal found 8/16

$181

Tue 8/267:54 pmSTL - SLC

1 stop16h 58mFrontier

Tue 9/212:52 pmSLC - STL

1 stop19h 19mFrontier

Deal found 8/15

$184

Tue 8/267:20 amORD - SLC

1 stop5h 32mFrontier

Wed 8/2712:52 pmSLC - ORD

1 stop7h 50mFrontier

Deal found 8/15

$199

One-way flights from Illinois to Salt Lake City
Search for one-way flight options from Illinois to Salt Lake City. Find affordable one-way fares based on user searches. Data last updated August 17, 2025.

Mon 9/227:55 pmSTL - SLC

1 stop5h 19mFrontier

Deal found 8/16

$73

Sun 9/2810:39 amSTL - SLC

1 stop6h 06mFrontier

Deal found 8/14

$75

Fri 9/127:55 pmSTL - SLC

1 stop5h 19mFrontier

Deal found 8/15

$77

Sun 9/1410:39 amSTL - SLC

1 stop6h 06mFrontier

Deal found 8/16

$79

Mon 11/32:42 pmSTL - SLC

1 stop7h 53mFrontier

Deal found 8/16

$80

Thu 10/2310:17 amSTL - SLC

1 stop10h 46mFrontier

Deal found 8/16

$81

Thu 10/308:40 pmSTL - SLC

1 stop11h 52mFrontier

Deal found 8/16

$82

Wed 10/87:52 pmSTL - SLC

1 stop12h 40mFrontier

Deal found 8/14

$83

Sat 9/207:55 pmSTL - SLC

1 stop12h 37mFrontier

Deal found 8/14

$84

Wed 9/177:55 pmSTL - SLC

1 stop16h 20mFrontier

Deal found 8/15

$85

Sat 9/274:58 pmSTL - SLC

1 stop18h 16mFrontier

Deal found 8/15

$86

Fri 8/227:54 pmSTL - SLC

1 stop5h 25mFrontier

Deal found 8/15

$87

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to Salt Lake City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Thu 9/11

10:49 am-3:45 pm

1 stop5h 56m

Salt Lake City

Thu 9/18

9:45 pm-9:06 am

1 stop10h 21m

$155

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Sun 9/14

10:39 am-3:45 pm

1 stop6h 06m

Salt Lake City

Sat 9/20

9:58 pm-9:06 am

1 stop10h 08m

$155

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Thu 9/11

10:49 am-3:45 pm

1 stop5h 56m

Salt Lake City

Sat 9/20

9:58 pm-9:06 am

1 stop10h 08m

$155

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Sun 10/12

10:17 am-8:03 pm

1 stop10h 46m

Salt Lake City

Sun 10/19

10:05 pm-9:07 am

1 stop10h 02m

$155

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Fri 10/24

7:52 pm-11:59 pm

1 stop5h 07m

Salt Lake City

Sun 10/26

8:58 pm-9:32 am

1 stop11h 34m

$155

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Thu 9/11

10:49 am-3:45 pm

1 stop5h 56m

Salt Lake City

Sun 9/14

9:45 pm-9:06 am

1 stop10h 21m

$155

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Thu 9/11

10:49 am-3:45 pm

1 stop5h 56m

Salt Lake City

Fri 9/19

9:45 pm-9:06 am

1 stop10h 21m

$155

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Thu 9/11

10:49 am-3:45 pm

1 stop5h 56m

Salt Lake City

Mon 9/22

9:45 pm-9:06 am

1 stop10h 21m

$155

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Sun 9/14

10:39 am-3:45 pm

1 stop6h 06m

Salt Lake City

Mon 9/22

9:45 pm-9:06 am

1 stop10h 21m

$155

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Mon 9/8

2:38 pm-7:28 pm

1 stop5h 50m

Salt Lake City

Mon 9/15

9:45 pm-9:06 am

1 stop10h 21m

$160

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 60 results

...

Best time to book a flight from Illinois to Salt Lake City

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

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

Currently, October is the cheapest month in which you can book a flight from Illinois to Salt Lake City (average of $277). Flying from Illinois to Salt Lake City in March is currently the most expensive (average of $417). 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 IL to SLC?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Salt Lake City as you normally would.

Weekly flight availability from Illinois to Salt Lake City

The most flights from USIL to SLC are scheduled on a Sunday (32 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (12 on average).

Related info for your journey

What airport do you fly into for flights to Salt Lake City from Illinois?
Salt Lake City (SLC), located 5.7 mi from the city center, is the airport you fly into when you book flights from Illinois to Salt Lake City.
What are the cheapest airlines to fly from Illinois to Salt Lake City one-way?
The cheapest airlines for a one-way flight from Illinois to Salt Lake City are Frontier ($73), Spirit Airlines ($116), and Delta ($149).
What are the most popular routes from Illinois to Salt Lake City?
The most popular flight routes from Illinois to Salt Lake City are Chicago O'Hare Intl - Salt Lake City, Lambert-St Louis - Salt Lake City and Chicago Midway - Salt Lake City.
What are the most reliable airlines from Illinois to Salt Lake City?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Illinois to Salt Lake City on time: KLM (90%), WestJet (83%), Air France (80%).
What are the cheapest flights from Illinois to Salt Lake City?
While on average a flight from Illinois to Salt Lake City is generally $649, our data shows the cheapest flight currently is $138. When looking at the most popular route, (Chicago O'Hare Intl - Salt Lake City), you can expect to pay $134 for that flight.
Can I find deals for flights from Illinois to Salt Lake City that include hotel bookings?
Yes. In addition to deals on Illinois to Salt Lake City flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Illinois to Salt Lake City?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Salt Lake City.
Can I find deals for business class flights from Illinois to Salt Lake City?
Yes. Cheapflights offers flight deals from Illinois to Salt Lake City 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 Illinois to Salt Lake City?
Currently, October is the cheapest month in which you can book a flight from Illinois to Salt Lake City (average of $277). Flying from Illinois to Salt Lake City in March is currently the most expensive (average of $417). 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

Bountiful

Midvale

Lehi

Layton

Farmington

Logan

West Valley City

Evanston

West Jordan

South Jordan

Draper

Sandy

Browse thousands of different options on Cheapflights for your next trip

Top 6 airlines flying from Illinois to Salt Lake City

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$82	Average$234	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$136	Average$256	FlexibilityNo cancel fee	On-time65%
Southwest	Cheapest$148	Average$434	FlexibilityNo cancel fee	On-time63%
Delta	Cheapest$167	Average$400	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$189	Average$525	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$204	Average$520	FlexibilityNo cancel fee	On-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$73+ Cheap flights from Illinois to Salt Lake City (SLC)

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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Illinois to Salt Lake City with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Illinois to Salt Lake City

Keep the following information in mind while searching for Illinois to Salt Lake City flight deals. Data was last updated August 17, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Illinois to Salt Lake City

Cheapest flights from Illinois to Salt Lake CityExplore the most affordable flight options available from Illinois to Salt Lake City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2025.

Explore the most affordable flight options available from Illinois to Salt Lake City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to Salt Lake City that are best for you.

Best time to book a flight from Illinois to Salt Lake City

Have a flexible travel schedule? Discover the best time to fly to Salt Lake City from Illinois with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Salt Lake City

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

What is the cheapest time of day to fly from IL to SLC?

Find hourly flight availability from Illinois to Salt Lake City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 17, 2025.

Weekly flight availability from Illinois to Salt Lake City

Related info for your journey

Find useful and relevant information for your journey from Illinois to Salt Lake City. 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 into for flights to Salt Lake City from Illinois?

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

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

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

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

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

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

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

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

Traveling to a place near Salt Lake City?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Salt Lake City

See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Illinois to Salt Lake City

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Illinois to Salt Lake City
Explore the most affordable flight options available from Illinois to Salt Lake City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 17, 2025.