What airlines fly to Illinois?

Delta, American Airlines and United Airlines are the top three most popular airlines that fly to Illinois from Utah according to our data. Delta is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 7 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

How long is the flight from Utah to Illinois?

The flight from Utah to Illinois depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Salt Lake City (a popular airport in Utah) to Chicago O'Hare Intl Airport (the most popular airport in Illinois), then the flight time is 3h 01m on average. If you fly from Saint George (another popular airport in Utah) to Chicago O'Hare Intl Airport, then the average flight time is 5h 01m.

What is the cheapest airline that flies from Utah to Illinois?

Frontier is the most popular carrier operating from Utah to Illinois

How many flights depart from Utah to Illinois on average per day?

As of November 2025, 25 flights take off from Utah and land in Illinois each day. The most common flight departure time for this route is 6:00AM, with 58% of daily flights taking off in the afternoon.

How many flights depart from Utah to Illinois on average per week?

The number of flights available between Utah and Illinois is 177 per week as of November 2025. The most frequent departure day is Mon, with 19% of weekly flights leaving on this day.

When did momondo last update prices for flights from Utah to Illinois?

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

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

The number of operators available for flights from Utah to Illinois is 6 as of November 2025.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Utah to Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents you'll need for your trip to Illinois 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 Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$55 Cheap Flights from Utah to Illinois in 2025/26

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Find the cheapest flights from Utah to Illinois

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

1:10 pm - 9:07 amSLC-STL

18h 57m1 stop

9:54 pm - 4:45 pmSTL-SLC

19h 51m1 stop

$110Frontier

Find Deal

Tue, Nov 18 - Thu, Nov 20

10:05 am - 10:14 amSLC-STL

23h 09m1 stop

7:43 pm - 11:37 amSTL-SLC

16h 54m1 stop

$119Frontier

Find Deal

Thu, Dec 4 - Mon, Dec 8

3:20 pm - 9:21 pmSGU-ORD

5h 01m1 stop

7:20 am - 2:43 pmORD-SGU

8h 23m1 stop

$258Delta

Find Deal

Thu, Dec 4 - Thu, Dec 11

12:46 pm - 9:16 pmSLC-MLI

7h 30m1 stop

3:56 pm - 10:30 pmMLI-SLC

7h 34m1 stop

$259United Airlines

Find Deal

Sun, Dec 7 - Sat, Dec 13

7:15 pm - 8:39 amSGU-ORD

12h 24m2 stops

7:20 am - 2:43 pmORD-SGU

8h 23m1 stop

$264Delta

Find Deal

Thu, Dec 4 - Thu, Dec 11

4:19 pm - 11:47 pmSLC-MLI

6h 28m1 stop

10:00 am - 7:58 pmMLI-SLC

10h 58m2 stops

$264American Airlines

Find Deal

Sun, Dec 7 - Sat, Dec 13

7:20 am - 3:47 pmSLC-PIA

7h 27m1 stop

9:49 am - 3:27 pmPIA-SLC

6h 38m1 stop

$309American Airlines

Find Deal

Wed, Nov 19 - Sun, Nov 23

12:45 am - 12:39 pmSLC-PIA

10h 54m2 stops

8:43 am - 1:22 pmPIA-SLC

5h 39m1 stop

$314United Airlines

Find Deal

Wed, Nov 19 - Mon, Nov 24

7:45 am - 11:55 amSLC-MDW

3h 10mnonstop

2:20 pm - 4:50 pmMDW-SLC

3h 30mnonstop

$325Southwest

Find Deal

Sat, Dec 6 - Mon, Dec 8

6:05 am - 1:20 pmSLC-MDW

6h 15m1 stop

2:20 pm - 4:50 pmMDW-SLC

3h 30mnonstop

$335Southwest

Find Deal

Sat, Dec 6 - Mon, Dec 8

Delta flights from Utah to Illinois

Our best Delta deals on Utah to Illinois flight tickets

Delta

Dec 4

SGU3:20 pmSaint George

5h 01m

1 stop

ORD9:21 pmChicago O'Hare Intl

Dec 11

ORD7:20 amChicago O'Hare Intl

8h 23m

1 stop

SGU2:43 pmSaint George

$258

Find similar

Delta

Dec 4

SGU7:15 pmSaint George

12h 24m

2 stops

ORD8:39 amChicago O'Hare Intl

Dec 11

ORD7:20 amChicago O'Hare Intl

8h 23m

1 stop

SGU2:43 pmSaint George

$264

Find similar

Delta

Feb 28

SGU11:27 amSaint George

9h 16m

2 stops

ORD9:43 pmChicago O'Hare Intl

Mar 3

ORD9:52 amChicago O'Hare Intl

13h 13m

2 stops

SGU10:05 pmSaint George

$269

Find similar

Frontier flights from Utah to Illinois

Our best Frontier deals on Utah to Illinois flight tickets

Frontier

Nov 18

SLC1:10 pmSalt Lake City

18h 57m

1 stop

STL9:07 amLambert-St Louis

Nov 20

STL9:54 pmLambert-St Louis

19h 51m

1 stop

SLC4:45 pmSalt Lake City

$110

Find similar

Frontier

Dec 4

SLC10:05 amSalt Lake City

23h 09m

1 stop

STL10:14 amLambert-St Louis

Dec 8

STL7:43 pmLambert-St Louis

16h 54m

1 stop

SLC11:37 amSalt Lake City

$119

Find similar

Frontier

Nov 20

SLC10:12 pmSalt Lake City

10h 50m

1 stop

STL10:02 amLambert-St Louis

Nov 24

STL7:43 pmLambert-St Louis

5h 23m

1 stop

SLC12:06 amSalt Lake City

$127

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Tue 11/18

1:10 pm-9:07 am

1 stop18h 57m

Lambert-St Louis

Thu 11/20

9:54 pm-4:45 pm

1 stop19h 51m

$110

Salt Lake CitySt. Louis

SLC - STL

SLCSTL

Salt Lake City

Thu 12/4

10:05 am-10:14 am

1 stop23h 09m

Lambert-St Louis

Mon 12/8

7:43 pm-11:37 am

1 stop16h 54m

$119

Saint GeorgeChicago

SGU - ORD

SGUORD

Saint George

Thu 12/4

3:20 pm-9:21 pm

1 stop5h 01m

Chicago O'Hare Intl

Thu 12/11

7:20 am-2:43 pm

1 stop8h 23m

$258

Salt Lake CityMoline

SLC - MLI

SLCMLI

Salt Lake City

Sun 12/7

12:46 pm-9:16 pm

1 stop7h 30m

Moline Quad-City

Sat 12/13

3:56 pm-10:30 pm

1 stop7h 34m

$259

Saint GeorgeChicago

SGU - ORD

SGUORD

Saint George

Thu 12/4

7:15 pm-8:39 am

2 stops12h 24m

Chicago O'Hare Intl

Thu 12/11

7:20 am-2:43 pm

1 stop8h 23m

$264

Salt Lake CityMoline

SLC - MLI

SLCMLI

Salt Lake City

Sun 12/7

4:19 pm-11:47 pm

1 stop6h 28m

Moline Quad-City

Sat 12/13

10:00 am-7:58 pm

2 stops10h 58m

$264

Salt Lake CityPeoria

SLC - PIA

SLCPIA

Salt Lake City

Wed 11/19

7:20 am-3:47 pm

1 stop7h 27m

Greater Peoria

Sun 11/23

9:49 am-3:27 pm

1 stop6h 38m

$309

Salt Lake CityPeoria

SLC - PIA

SLCPIA

Salt Lake City

Wed 11/19

12:45 am-12:39 pm

2 stops10h 54m

Greater Peoria

Mon 11/24

8:43 am-1:22 pm

1 stop5h 39m

$314

Salt Lake CityChicago

SLC - MDW

SLCMDW

Salt Lake City

Sat 12/6

7:45 am-11:55 am

Nonstop3h 10m

Chicago Midway

Mon 12/8

2:20 pm-4:50 pm

Nonstop3h 30m

$325

Salt Lake CityChicago

SLC - MDW

SLCMDW

Salt Lake City

Sat 12/6

6:05 am-1:20 pm

1 stop6h 15m

Chicago Midway

Mon 12/8

2:20 pm-4:50 pm

Nonstop3h 30m

$335

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Utah to Illinois

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

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Utah is in November. Flight prices, which tend to average around $270, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of November, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $274.

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

The cheapest day to depart from Utah to Illinois is on a Friday when prices can be found for as low as $487. Flights from Utah to Illinois on a Sunday will generally be more expensive and average around $663. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Utah to Illinois during this time can be as low as $201. Flights in the morning are often more expensive with an average ticket price of $546.

What is the cheapest Utah to Illinois flight route?

Fly from Salt Lake City to Chicago Midway for the best Utah - Illinois flight prices

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

You are more likely to see cheaper flights to Illinois from Utah when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $385 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Utah for as low as $301 on momondo.

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

There are 4 cabin classes available to choose from on Utah to Illinois 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 Utah to Illinois flights?

You could potentially save up to 2% on your flight if you consider stops on a Utah to Illinois flight.

Cheap Utah to Illinois flight deals and tips

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

Best Price Found	$194
Fastest flight time	2h 40m
Direct flights	Every day
Airports in Illinois	3 airports

The best one-way flight to Illinois from Utah in the past 72 hours is $194. The best round-trip flight deal from Utah to Illinois found on momondo in the last 72 hours is $402.

The fastest flight from Utah to Illinois takes 2h 40m

Direct flights go from Utah to Illinois every day.

There are 3 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Lambert-St Louis (STL)

Search flight deals

When did momondo last update prices for flights from Utah to Illinois?
Prices for flights from Utah to Illinois were last updated today.
How many operators does momondo search for flights from Utah to Illinois?
The number of operators available for flights from Utah to Illinois is 6 as of November 2025.
How old do you have to be to fly from Utah to Illinois?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Utah to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents you'll need for your trip to Illinois 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 Illinois. 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 Utah to Illinois?
Based on momondo bookings for flights between Utah and Illinois, the leading plane model is Boeing 737-800, making up 21.04% of the total bookings. Other popular models include Airbus A319 with 20.52%, Boeing 737 MAX 8 with 8.54%, and Boeing 737-700 with 7.90%.

Best airlines flying from Utah to Illinois

Compare and see reviews for airlines that fly from Utah to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $89	Free Cancellation	Rating 5.8 3,115 reviews	Search Frontier flights
Allegiant Air	PriceFrom $90	Free Cancellation	Rating 7.2 696 reviews	Search Allegiant Air flights
Spirit Airlines	PriceFrom $93	Free Cancellation	Rating 6.3 8,113 reviews	Search Spirit Airlines flights
United Airlines	PriceFrom $178	Free Cancellation	Rating 7.4 9,000 reviews	Search United Airlines flights
American Airlines	PriceFrom $202	Free Cancellation	Rating 7.2 11,039 reviews	Search American Airlines flights
Delta	PriceFrom $207	Free Cancellation	Rating 7.9 8,004 reviews	Search Delta flights
Southwest	PriceFrom $282	Free Cancellation	Rating 8.0 4,239 reviews	Search Southwest flights

Why use momondo?

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

It is quick and easy to find Utah to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

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

Yes. momondo allows you to filter the results for Utah to Illinois flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Utah and Illinois by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Utah to Illinois now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Illinois and let you know when they change.

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Illinois

Popular cities in Illinois

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Flights to Washington, D.C.from $49

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Flights to Atlantafrom $40

Flights to Dallasfrom $59

Flights to Seattlefrom $58

Cheap flights from Utah to Illinois 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 Utah to Illinois departing on 1/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Utah to Illinois

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Delta flights from Utah to Illinois

Our best Delta deals on Utah to Illinois flight tickets

Frontier flights from Utah to Illinois

Our best Frontier deals on Utah to Illinois flight tickets

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

See travel insights to Illinois from

How to get the cheapest flight ticket from Utah to Illinois

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 Illinois?

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

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

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Utah to Illinois during this time can be as low as $201. Flights in the morning are often more expensive with an average ticket price of $546.

What is the cheapest Utah to Illinois flight route?

Fly from Salt Lake City to Chicago Midway for the best Utah - Illinois flight prices

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

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

There are 4 cabin classes available to choose from on Utah to Illinois 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 Utah to Illinois flights?

You could potentially save up to 2% on your flight if you consider stops on a Utah to Illinois flight.

What is the cheapest airline that flies from Utah to Illinois?

Frontier is the most popular carrier operating from Utah to Illinois

What airlines fly to Illinois?

How many flights depart from Utah to Illinois on average per day?

As of November 2025, 25 flights take off from Utah and land in Illinois each day. The most common flight departure time for this route is 6:00AM, with 58% of daily flights taking off in the afternoon.

How many flights depart from Utah to Illinois on average per week?

The number of flights available between Utah and Illinois is 177 per week as of November 2025. The most frequent departure day is Mon, with 19% of weekly flights leaving on this day.

How long is the flight from Utah to Illinois?

Cheap Utah to Illinois flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

When did momondo last update prices for flights from Utah to Illinois?

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

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

What documentation or ID do you need to fly to Illinois?

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

Best airlines flying from Utah to Illinois

Compare and see reviews for airlines that fly from Utah to Illinois with momondo

Why use momondo?

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

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

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

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

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo