Cheap flights from Illinois to Utah from $55

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Utah departing on 12/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
1:16 pm - 9:25 amSTL-SLC
21h 09m1 stop
Frontier Logo
7:20 am - 10:14 amSLC-STL
25h 54m1 stop
$121Frontier
Find Deal
Thu, Dec 11 - Tue, Dec 16
Frontier Logo
1:16 pm - 9:25 amSTL-SLC
21h 09m1 stop
Frontier Logo
10:22 am - 10:14 amSLC-STL
22h 52m1 stop
$124Frontier
Find Deal
Thu, Dec 4 - Sun, Dec 7
Delta Logo
5:29 pm - 10:01 pmORD-SGU
5h 32m1 stop
Delta Logo
11:30 am - 6:45 pmSGU-ORD
6h 15m1 stop
$258Delta
Find Deal
Sat, Dec 6 - Fri, Dec 12
Delta Logo
5:12 pm - 12:01 amMLI-SLC
7h 49m1 stop
Delta Logo
7:00 am - 4:19 pmSLC-MLI
8h 19m1 stop
$259Delta
Find Deal
Thu, Nov 27 - Sat, Dec 13
United Airlines Logo
6:30 am - 1:26 pmMLI-SLC
7h 56m1 stop
United Airlines Logo
7:00 am - 3:09 pmSLC-MLI
7h 09m2 stops
$264United Airlines
Find Deal
Tue, Jan 27 - Sat, Jan 31
United Airlines Logo
10:47 am - 8:52 pmMLI-SLC
11h 05m2 stops
United Airlines Logo
7:00 am - 3:09 pmSLC-MLI
7h 09m2 stops
$269United Airlines
Find Deal
Tue, Jan 27 - Sat, Jan 31
American Airlines Logo
5:16 pm - 10:12 pmPIA-SLC
5h 56m1 stop
American Airlines Logo
5:30 am - 3:24 pmSLC-PIA
8h 54m1 stop
$314American Airlines
Find Deal
Tue, Jan 20 - Sun, Jan 25
American Airlines Logo
7:38 am - 8:21 pmPIA-SLC
13h 43m2 stops
American Airlines Logo
5:30 am - 3:24 pmSLC-PIA
8h 54m1 stop
$320American Airlines
Find Deal
Tue, Jan 20 - Sun, Jan 25
Southwest Logo
2:20 pm - 4:50 pmMDW-SLC
3h 30mnonstop
Southwest Logo
5:00 am - 12:35 pmSLC-MDW
6h 35m1 stop
$335Southwest
Find Deal
Fri, Dec 5 - Sun, Dec 7
Southwest Logo
3:10 pm - 10:00 pmMDW-SLC
7h 50m1 stop
Southwest Logo
5:00 am - 11:05 amSLC-MDW
5h 05m1 stop
$345Southwest
Find Deal
Wed, Dec 10 - Fri, Dec 12

Frontier flights from Illinois to Utah

Our best Frontier deals on Illinois to Utah flight tickets
Frontier
Dec 11
STL1:16 pmLambert-St Louis
21h 09m
1 stop
SLC9:25 amSalt Lake City
Dec 16
SLC7:20 amSalt Lake City
25h 54m
1 stop
STL10:14 amLambert-St Louis
Frontier
Dec 4
STL1:16 pmLambert-St Louis
21h 09m
1 stop
SLC9:25 amSalt Lake City
Dec 7
SLC10:22 amSalt Lake City
22h 52m
1 stop
STL10:14 amLambert-St Louis
Frontier
Dec 4
STL1:16 pmLambert-St Louis
25h 09m
1 stop
SLC1:25 pmSalt Lake City
Dec 7
SLC10:22 amSalt Lake City
22h 52m
1 stop
STL10:14 amLambert-St Louis

American Airlines flights from Illinois to Utah

Our best American Airlines deals on Illinois to Utah flight tickets
American Airlines
Jan 20
PIA5:16 pmGreater Peoria
5h 56m
1 stop
SLC10:12 pmSalt Lake City
Jan 25
SLC5:30 amSalt Lake City
8h 54m
1 stop
PIA3:24 pmGreater Peoria
American Airlines
Jan 20
PIA7:38 amGreater Peoria
13h 43m
2 stops
SLC8:21 pmSalt Lake City
Jan 25
SLC5:30 amSalt Lake City
8h 54m
1 stop
PIA3:24 pmGreater Peoria
American Airlines
Feb 19
MLI1:59 pmMoline Quad-City
8h 35m
1 stop
SLC9:34 pmSalt Lake City
Feb 25
SLC5:30 amSalt Lake City
8h 34m
1 stop
MLI3:04 pmMoline Quad-City

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Utah 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, momondo users made 832,500 searches. Data last updated November 5, 2025.
Use the filters below to find and compare flights from Illinois to Utah that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Thu 12/11

1:16 pm-9:25 am

1 stop21h 09m

Salt Lake City

Tue 12/16

7:20 am-10:14 am

1 stop25h 54m

$121

St. LouisSalt Lake City

STL - SLC

STLSLC

Lambert-St Louis

Thu 12/4

1:16 pm-9:25 am

1 stop21h 09m

Salt Lake City

Sun 12/7

10:22 am-10:14 am

1 stop22h 52m

$124

ChicagoSaint George

ORD - SGU

ORDSGU

Chicago O'Hare Intl

Sat 12/6

5:29 pm-10:01 pm

1 stop5h 32m

Saint George

Fri 12/12

11:30 am-6:45 pm

1 stop6h 15m

$258

MolineSalt Lake City

MLI - SLC

MLISLC

Moline Quad-City

Thu 11/27

5:12 pm-12:01 am

1 stop7h 49m

Salt Lake City

Sat 12/13

7:00 am-4:19 pm

1 stop8h 19m

$259

MolineSalt Lake City

MLI - SLC

MLISLC

Moline Quad-City

Tue 1/27

6:30 am-1:26 pm

1 stop7h 56m

Salt Lake City

Sat 1/31

7:00 am-3:09 pm

2 stops7h 09m

$264

MolineSalt Lake City

MLI - SLC

MLISLC

Moline Quad-City

Tue 1/27

10:47 am-8:52 pm

2 stops11h 05m

Salt Lake City

Sat 1/31

7:00 am-3:09 pm

2 stops7h 09m

$269

PeoriaSalt Lake City

PIA - SLC

PIASLC

Greater Peoria

Tue 1/20

5:16 pm-10:12 pm

1 stop5h 56m

Salt Lake City

Sun 1/25

5:30 am-3:24 pm

1 stop8h 54m

$314

PeoriaSalt Lake City

PIA - SLC

PIASLC

Greater Peoria

Tue 1/20

7:38 am-8:21 pm

2 stops13h 43m

Salt Lake City

Sun 1/25

5:30 am-3:24 pm

1 stop8h 54m

$320

ChicagoSalt Lake City

MDW - SLC

MDWSLC

Chicago Midway

Fri 12/5

2:20 pm-4:50 pm

Nonstop3h 30m

Salt Lake City

Sun 12/7

5:00 am-12:35 pm

1 stop6h 35m

$335

ChicagoSalt Lake City

MDW - SLC

MDWSLC

Chicago Midway

Wed 12/10

3:10 pm-10:00 pm

1 stop7h 50m

Salt Lake City

Fri 12/12

5:00 am-11:05 am

1 stop5h 05m

$345

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Utah from

How to get the cheapest flight ticket from Illinois to Utah

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Utah?

The cheapest month to fly to Utah from Illinois is in November. Flight prices, which tend to average around $333, are often lower during this time because this is during the off-season. If you aren’t able to travel to Utah during the month of November, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $334.

What is the cheapest day to depart on your flight to Utah?

The cheapest day to depart on your flight to Utah is on a Saturday when prices can be found for as low as $384. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Utah is Sunday, with ticket prices averaging around $483.

What is the cheapest time of day to depart on your flight to Utah?

Our data shows that the cheapest Illinois to Utah flights are usually those with departure times in the afternoon. Our users have found flights to Utah in the afternoon for as low as $343. Flights to Utah are more costly in the morning, with an average ticket price of $444. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Illinois to Utah flight route?

Fly from Chicago O'Hare Intl to Salt Lake City for the best Illinois - Utah flight prices

How far in advance should I book a flight to Utah?

You are more likely to see cheaper flights to Utah from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Utah for around $404 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Utah from Illinois for as low as $343 on momondo.

What cabin class options are available on Illinois to Utah flights?

There are 4 cabin classes available to choose from on Illinois to Utah flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Illinois to Utah flights?

You could potentially save up to 23% on your flight if you consider stops on a Illinois to Utah flight.

Cheap Illinois to Utah flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Utah

Best Price Found

$155

Fastest flight time

3h 16m

Direct flights

Every day

Airports in Utah

1 airport
The best one-way flight to Utah from Illinois in the past 72 hours is $155. The best round-trip flight deal from Illinois to Utah found on momondo in the last 72 hours is $346.
The fastest flight from Illinois to Utah takes 3h 16m
Direct flights go from Illinois to Utah every day.
There is 1 airport near Utah: Salt Lake City (SLC)
  • When did momondo last update prices for flights from Illinois to Utah?

    Prices for flights from Illinois to Utah were last updated today.

  • How many operators does momondo search for flights from Illinois to Utah?

  • How old do you have to be to fly from Illinois to Utah?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Utah.

  • What documentation or ID do you need to fly to Utah?

    The travel and health documents you'll need for your trip to Utah may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Utah. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Illinois to Utah?

Best airlines flying from Illinois to Utah

Compare and see reviews for airlines that fly from Illinois to Utah with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $89Free CancellationRating
5.8
3,115 reviews
Search Frontier flights
Allegiant AirPriceFrom $102Free CancellationRating
7.2
696 reviews
Search Allegiant Air flights
Spirit AirlinesPriceFrom $136Free CancellationRating
6.3
8,113 reviews
Search Spirit Airlines flights
DeltaPriceFrom $184Free CancellationRating
7.9
8,004 reviews
Search Delta flights
American AirlinesPriceFrom $199Free CancellationRating
7.2
11,039 reviews
Search American Airlines flights
United AirlinesPriceFrom $258Free CancellationRating
7.4
9,001 reviews
Search United Airlines flights
SouthwestPriceFrom $300Free CancellationRating
8.0
4,239 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Utah?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Utah from Illinois.

Can I find flights from Illinois to Utah with flexible booking policies on momondo?

Flights from Illinois to Utah with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Illinois to Utah?

momondo provides multiple filters to help you find the best flight to Utah from Illinois. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Illinois to Utah right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Illinois to Utah flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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1 adult
Fri 12/5
Fri 12/12

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