What airlines fly to Illinois?

American Airlines, United Airlines and Southwest are the top three most popular airlines that fly to Illinois from Cincinnati according to our data. American Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 3 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Cincinnati Cinci./N. Kentucky to Illinois?

Southwest, Frontier, and United Airlines are the most popular carriers operating from Cincinnati Cinci./N. Kentucky to Illinois

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

28 flights are operational daily from Cincinnati to Illinois as of March 2026. The most popular departure time for this route is 8:00AM, with 50% of flights per day taking off at noon.

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

As of March 2026, there are 201 flights per week flying from Cincinnati to Illinois. The most common day of the week flights depart is Wed, with 29% of flights taking off on this day.

When did momondo last update prices for flights from Cincinnati Cinci./N. Kentucky Airport to Illinois?

Prices for flights from Cincinnati Cinci./N. Kentucky Airport to Illinois are updated daily.

How many operators does momondo search for flights from Cincinnati Cinci./N. Kentucky Airport to Illinois?

There are 4 operators available for flights from Cincinnati Cinci./N. Kentucky Airport to Illinois as of March 2026.

How old do you have to be to fly from Cincinnati Cinci./N. Kentucky Airport to Illinois?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Cincinnati Cinci./N. Kentucky Airport to Illinois.

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

The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$49 Cheap Flights from Cincinnati to Illinois in 2026

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

2:26 pm - 11:25 pm

CVG

STL

9h 59m

1 stop

8:39 am - 7:23 pm

STL

CVG

9h 44m

1 stop

$160Frontier

Mon, Apr 13 - Fri, Apr 17

6:53 pm - 6:50 am

CVG

STL

12h 57m

1 stop

8:23 pm - 5:33 pm

STL

CVG

20h 10m

1 stop

$166Frontier

Sun, Apr 19 - Wed, Apr 22

7:43 pm - 9:36 am

CVG

ORD

14h 53m

2 stops

5:01 am - 6:36 pm

ORD

CVG

12h 35m

1 stop

$174Multiple Airlines

Thu, May 7 - Mon, May 11

5:00 am - 5:31 am

CVG

ORD

1h 31mnonstop

8:40 am - 11:00 am

ORD

CVG

1h 20mnonstop

$175American Airlines

Mon, Mar 23 - Mon, Mar 30

7:05 am - 3:45 pm

CVG

MDW

9h 40m

2 stops

7:40 am - 9:45 am

MDW

CVG

1h 05mnonstop

$178Southwest

Wed, Apr 8 - Sat, Apr 11

6:53 pm - 10:23 am

CVG

ORD

16h 30m

1 stop

7:15 pm - 6:36 pm

ORD

CVG

22h 21m

2 stops

$178Multiple Airlines

Sun, Apr 19 - Fri, Apr 24

6:15 pm - 10:50 pm

CVG

MDW

5h 35m

1 stop

6:10 pm - 8:20 pm

MDW

CVG

1h 10mnonstop

$181Southwest

Tue, Mar 31 - Tue, Apr 7

7:00 am - 7:31 am

CVG

ORD

1h 31mnonstop

6:05 pm - 8:29 pm

ORD

CVG

1h 24mnonstop

$183United Airlines

Wed, Apr 8 - Sat, Apr 11

5:00 am - 5:33 am

CVG

ORD

1h 33mnonstop

8:15 am - 10:41 am

ORD

CVG

1h 26mnonstop

$184American Airlines

Wed, Apr 8 - Sat, Apr 11

10:10 am - 2:09 pm

CVG

MLI

4h 59m

1 stop

1:55 pm - 8:29 pm

MLI

CVG

5h 34m

1 stop

$282United Airlines

Wed, Apr 1 - Wed, Apr 8

United Airlines flights from Cincinnati to Illinois

Our best United Airlines deals on Cincinnati to Illinois flight tickets

United Airlines

Apr 8

CVG7:00 amCincinnati Cinci./N. Kentucky

1h 31m

ORD7:31 amChicago O'Hare Intl

Apr 11

ORD6:05 pmChicago O'Hare Intl

1h 24m

CVG8:29 pmCincinnati Cinci./N. Kentucky

$183

United Airlines

May 5

CVG6:09 pmCincinnati Cinci./N. Kentucky

1h 36m

ORD6:45 pmChicago O'Hare Intl

May 29

ORD10:44 amChicago O'Hare Intl

1h 25m

CVG1:09 pmCincinnati Cinci./N. Kentucky

$189

United Airlines

Apr 11

CVG8:30 amCincinnati Cinci./N. Kentucky

1h 36m

ORD9:06 amChicago O'Hare Intl

Apr 11

ORD6:05 pmChicago O'Hare Intl

1h 24m

CVG8:29 pmCincinnati Cinci./N. Kentucky

$197

Frontier flights from Cincinnati to Illinois

Our best Frontier deals on Cincinnati to Illinois flight tickets

Frontier

Apr 13

CVG2:26 pmCincinnati Cinci./N. Kentucky

9h 59m

1 stop

STL11:25 pmLambert-St Louis

Apr 17

STL8:39 amLambert-St Louis

9h 44m

1 stop

CVG7:23 pmCincinnati Cinci./N. Kentucky

$160

Frontier

Apr 19

CVG6:53 pmCincinnati Cinci./N. Kentucky

12h 57m

1 stop

STL6:50 amLambert-St Louis

Apr 22

STL8:23 pmLambert-St Louis

20h 10m

1 stop

CVG5:33 pmCincinnati Cinci./N. Kentucky

$166

Frontier

May 1

CVG8:17 pmCincinnati Cinci./N. Kentucky

16h 16m

2 stops

ORD11:33 amChicago O'Hare Intl

May 4

ORD5:50 amChicago O'Hare Intl

11h 46m

1 stop

CVG6:36 pmCincinnati Cinci./N. Kentucky

$176

Fly from

Fly to

Route

Depart

Return

Price

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Mon 4/13

2:26 pm-11:25 pm

1 stop9h 59m

Lambert-St Louis

Fri 4/17

8:39 am-7:23 pm

1 stop9h 44m

$160

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Sun 4/19

6:53 pm-6:50 am

1 stop12h 57m

Lambert-St Louis

Wed 4/22

8:23 pm-5:33 pm

1 stop20h 10m

$166

CincinnatiChicago

CVG - ORD

CVGORD

Cincinnati Cinci./N. Kentucky

Thu 5/7

7:43 pm-9:36 am

2 stops14h 53m

Chicago O'Hare Intl

Mon 5/11

5:01 am-6:36 pm

1 stop12h 35m

$174

CincinnatiChicago

CVG - ORD

CVGORD

Cincinnati Cinci./N. Kentucky

Mon 3/23

5:00 am-5:31 am

Nonstop1h 31m

Chicago O'Hare Intl

Mon 3/30

8:40 am-11:00 am

Nonstop1h 20m

$175

CincinnatiChicago

CVG - MDW

CVGMDW

Cincinnati Cinci./N. Kentucky

Wed 4/8

7:05 am-3:45 pm

2 stops9h 40m

Chicago Midway

Sat 4/11

7:40 am-9:45 am

Nonstop1h 05m

$178

CincinnatiChicago

CVG - ORD

CVGORD

Cincinnati Cinci./N. Kentucky

Sun 4/19

6:53 pm-10:23 am

1 stop16h 30m

Chicago O'Hare Intl

Fri 4/24

7:15 pm-6:36 pm

2 stops22h 21m

$178

CincinnatiChicago

CVG - MDW

CVGMDW

Cincinnati Cinci./N. Kentucky

Tue 3/31

6:15 pm-10:50 pm

1 stop5h 35m

Chicago Midway

Tue 4/7

6:10 pm-8:20 pm

Nonstop1h 10m

$181

CincinnatiChicago

CVG - ORD

CVGORD

Cincinnati Cinci./N. Kentucky

Wed 4/8

7:00 am-7:31 am

Nonstop1h 31m

Chicago O'Hare Intl

Sat 4/11

6:05 pm-8:29 pm

Nonstop1h 24m

$183

CincinnatiChicago

CVG - ORD

CVGORD

Cincinnati Cinci./N. Kentucky

Wed 4/8

5:00 am-5:33 am

Nonstop1h 33m

Chicago O'Hare Intl

Sat 4/11

8:15 am-10:41 am

Nonstop1h 26m

$184

CincinnatiMoline

CVG - MLI

CVGMLI

Cincinnati Cinci./N. Kentucky

Wed 4/1

10:10 am-2:09 pm

1 stop4h 59m

Moline Quad-City

Wed 4/8

1:55 pm-8:29 pm

1 stop5h 34m

$282

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 Cincinnati 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 Cincinnati is in April. Flight prices, which tend to average around $184, 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 April, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $237.

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

The cheapest day to depart from Cincinnati to Illinois is on a Friday when prices can be found for as low as $528. Flights from Cincinnati to Illinois on a Sunday will generally be more expensive and average around $688. 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 morning. Flights from Cincinnati to Illinois during this time can be as low as $479. Flights in the afternoon are often more expensive with an average ticket price of $934.

What is the cheapest Cincinnati Cinci./N. Kentucky to Illinois flight route?

Fly from Cincinnati Cinci./N. Kentucky to Chicago O'Hare Intl for the best Cincinnati Cinci./N. Kentucky - 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 Cincinnati when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $303 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Cincinnati for as low as $222 on momondo.

What cabin class options are available on Cincinnati Cinci./N. Kentucky to Illinois flights?

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

Cheap Cincinnati to Illinois flight deals and tips

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

Best Price Found	$219
Fastest flight time	1h 10m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Cincinnati in the past 72 hours is $219. The best round-trip flight deal from Cincinnati to Illinois found on momondo in the last 72 hours is $348.

The fastest flight from Cincinnati to Illinois takes 1h 10m

Direct flights go from Cincinnati to Illinois every day.

There are 98 airports in Illinois. From Cincinnati there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW).

Search flight deals

When did momondo last update prices for flights from Cincinnati Cinci./N. Kentucky Airport to Illinois?
Prices for flights from Cincinnati Cinci./N. Kentucky Airport to Illinois are updated daily.
How many operators does momondo search for flights from Cincinnati Cinci./N. Kentucky Airport to Illinois?
There are 4 operators available for flights from Cincinnati Cinci./N. Kentucky Airport to Illinois as of March 2026.
How old do you have to be to fly from Cincinnati Cinci./N. Kentucky Airport to Illinois?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Cincinnati Cinci./N. Kentucky Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Cincinnati to Illinois?
Based on momondo bookings for flights between Cincinnati and Illinois, the leading plane model is Embraer 175 (Enhanced Winglets), making up 13.62% of the total bookings. Other popular models include Embraer 170 with 12.06%, Canadair (Bombardier) Regional Jet 700 with 10.93%, and Embraer 175 with 8.85%.

Best airlines flying from Cincinnati to Illinois

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

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $139	Free Cancellation	Rating 7.4 9,382 reviews	Search United Airlines flights
American Airlines	PriceFrom $155	Free Cancellation	Rating 7.1 11,378 reviews	Search American Airlines flights
Southwest	PriceFrom $208	Free Cancellation	Rating 8.0 4,304 reviews	Search Southwest flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Cincinnati to Illinois for you.

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

Yes. All flights to Illinois from Cincinnati on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

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

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

Yes momondo offers price alerts on flights to Illinois from Cincinnati. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Flights to Chicagofrom $56

Flights to San Franciscofrom $58

Flights to Las Vegasfrom $55

Flights to Washington, D.C.from $56

Flights to Bostonfrom $77

Flights to Atlantafrom $49

Flights to Dallasfrom $60

Flights to Seattlefrom $55

Cheap flights from Cincinnati to Illinois from $49

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Cincinnati to Illinois departing on 4/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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How to get the cheapest flight ticket from Cincinnati to Illinois

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?

What is the cheapest Cincinnati Cinci./N. Kentucky to Illinois flight route?

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

What cabin class options are available on Cincinnati Cinci./N. Kentucky to Illinois flights?

What is the cheapest airline that flies from Cincinnati Cinci./N. Kentucky to Illinois?

What airlines fly to Illinois?

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

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

Cheap Cincinnati to Illinois flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

Best airlines flying from Cincinnati to Illinois

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

Why use momondo?

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

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