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$51+ Cheap flights from Cincinnati (CVG) 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
CVG — ORD
out 15 — out 221
qua 10/15
qua 10/22
1 adult, Economy
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Cheap flight deals from Cincinnati to Illinois

Keep the following information in mind while searching for Cincinnati to Illinois flight deals. Data was last updated setembro 15, 2025.

Round-trip from

$159
(Frontier)

One-way from

$51
(United Airlines)

Popular in

February

Cheapest in

April

Average price

$290

Good round-trip deal

$330 or less

Good one-way deal

$153 or less
From Cincinnati Cinci./N. Kentucky to Illinois
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One-way flight from Cincinnati Cinci./N. Kentucky to Illinois
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Highest demand for flights based on searches. 4% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Cincinnati Cinci./N. Kentucky to Illinois.
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Price to beat on a one-way flight from Cincinnati Cinci./N. Kentucky to Illinois.
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Find flight deals from Cincinnati to Illinois

Cheapest flights from Cincinnati to Illinois
Explore the most affordable flight options available from Cincinnati to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on setembro 15, 2025.

This Frontier deal was found by Cheapflights users on 9/14. 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.
seg 9/295:20 amCVG - STL
1 stop8h 42mFrontier
qui 10/210:49 amSTL - CVG
1 stop12h 10mFrontier
Deal found 9/14$159
This Delta deal was found by Cheapflights users on 9/12. 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.
sáb 11/1511:49 amCVG - MDW
1 stop7h 29mDelta
qua 11/196:00 amMDW - CVG
1 stop7h 15mDelta
Deal found 9/12$177
This Delta deal was found by Cheapflights users on 9/13. 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.
qua 10/14:53 pmCVG - ORD
1 stop6h 21mDelta
sáb 10/46:15 amORD - CVG
1 stop3h 50mDelta
Deal found 9/13$177
This American Airlines deal was found by Cheapflights users on 9/13. 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.
qua 10/17:00 amCVG - ORD
Nonstop1h 26mAmerican Airlines
sáb 10/48:37 amORD - CVG
1 stop4h 30mAmerican Airlines
Deal found 9/13$178
This Trip.com deal was found by Cheapflights users on 9/14. 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.
dom 9/216:18 amCVG - STL
1 stop27h 48mFrontier
dom 9/281:52 pmSTL - CVG
1 stop20h 04mFrontier
Deal found 9/14$180
This Frontier deal was found by Cheapflights users on 9/13. 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.
qui 9/181:21 pmCVG - MDW
1 stop10h 59mFrontier
seg 9/226:20 amMDW - CVG
1 stop10h 18mFrontier
Deal found 9/13$181
This Southwest deal was found by Cheapflights users on 9/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 10/12:50 pmCVG - MDW
Nonstop1h 10mSouthwest
sáb 10/410:00 amMDW - CVG
Nonstop1h 05mSouthwest
Deal found 9/13$182
This American Airlines deal was found by Cheapflights users on 9/12. 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.
qui 10/97:49 pmCVG - ORD
Nonstop1h 30mAmerican Airlines
qui 10/169:33 pmORD - CVG
Nonstop1h 26mAmerican Airlines
Deal found 9/12$184
This Frontier deal was found by Cheapflights users on 9/13. 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.
sex 10/244:26 pmCVG - MDW
2 stops8h 20mFrontier
dom 10/266:20 amMDW - CVG
1 stop9h 50mFrontier
Deal found 9/13$186
This Frontier deal was found by Cheapflights users on 9/13. 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.
qui 11/611:00 amCVG - ORD
2 stops14h 11mFrontier
seg 11/175:05 amORD - CVG
1 stop11h 05mFrontier
Deal found 9/13$186
This Frontier deal was found by Cheapflights users on 9/13. 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.
qui 9/181:21 pmCVG - MDW
1 stop10h 59mFrontier
dom 9/216:20 amMDW - CVG
1 stop10h 18mFrontier
Deal found 9/13$187
This Frontier deal was found by Cheapflights users on 9/12. 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.
qui 9/255:54 pmCVG - ORD
1 stop7h 04mFrontier
dom 9/285:10 amORD - CVG
1 stop11h 28mFrontier
Deal found 9/12$188

Cheapflights Fare Finder

 
Customize your flight search to find flights from Cincinnati 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 setembro 15, 2025.
Use the filters below to find and compare flights from Cincinnati to Illinois that are best for you.

Fly from

Cincinnati

Fly to

Illinois

Route

Depart

Return

Price

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

seg 9/29

5:20 am-1:02 pm

1 stop8h 42m

Lambert-St Louis

qui 10/2

10:49 am-11:59 pm

1 stop12h 10m

$159

CincinnatiChicago

CVG - ORD

CVGORD

Cincinnati Cinci./N. Kentucky

qua 10/1

4:53 pm-10:14 pm

1 stop6h 21m

Chicago O'Hare Intl

sáb 10/4

6:15 am-11:05 am

1 stop3h 50m

$177

CincinnatiChicago

CVG - ORD

CVGORD

Cincinnati Cinci./N. Kentucky

sáb 10/11

6:04 pm-11:58 pm

1 stop6h 54m

Chicago O'Hare Intl

sáb 10/18

1:25 pm-11:59 pm

2 stops9h 34m

$182

CincinnatiChicago

CVG - MDW

CVGMDW

Cincinnati Cinci./N. Kentucky

qui 10/2

6:05 am-3:58 pm

2 stops10h 53m

Chicago Midway

sáb 10/4

6:15 am-4:39 pm

1 stop9h 24m

$186

CincinnatiChicago

CVG - MDW

CVGMDW

Cincinnati Cinci./N. Kentucky

sáb 10/25

8:00 am-10:47 pm

2 stops15h 47m

Chicago Midway

dom 10/26

11:57 am-12:42 am

1 stop11h 45m

$192

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

qua 10/29

6:05 am-9:07 am

1 stop28h 02m

Lambert-St Louis

qua 11/5

7:45 pm-1:39 am

1 stop28h 54m

$205

CincinnatiChicago

CVG - ORD

CVGORD

Cincinnati Cinci./N. Kentucky

sex 10/24

12:52 pm-11:39 pm

1 stop11h 47m

Chicago O'Hare Intl

qui 11/6

5:01 am-12:24 am

2 stops18h 23m

$210

CincinnatiChicago

CVG - ORD

CVGORD

Cincinnati Cinci./N. Kentucky

ter 10/14

7:00 am-7:34 am

Nonstop1h 34m

Chicago O'Hare Intl

qua 10/15

10:46 am-1:07 pm

Nonstop1h 21m

$217

CincinnatiMoline

CVG - MLI

CVGMLI

Cincinnati Cinci./N. Kentucky

sex 10/3

7:00 am-10:15 am

1 stop4h 15m

Moline Quad-City

seg 10/6

6:45 pm-11:59 pm

1 stop4h 14m

$234

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

ter 12/2

10:01 am-4:07 pm

1 stop7h 06m

Lambert-St Louis

qua 12/3

7:05 am-2:16 pm

1 stop6h 11m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 60 results
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Best time to book a flight from Cincinnati to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Cincinnati 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 Cincinnati to Illinois

What is the cheapest month to book a flight from Cincinnati to Illinois?

Currently, August is the cheapest month in which you can book a flight from Cincinnati to Illinois (average of $245). Flying from Cincinnati to Illinois in March is currently the most expensive (average of $321). 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 CVG to IL?

Find hourly flight availability from Cincinnati 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 setembro 15, 2025.

When flying from Cincinnati 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 Cincinnati to Illinois

Explore weekly flight availability from Cincinnati 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 setembro 15, 2025.

The most flights from CVG to USIL are scheduled on a Friday (71 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (40 on average).

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 setembro 15, 2025.
See what other customers who have flown with Southwest, United Airlines, and American Airlines from Cincinnati to Illinois have to say. 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
8.0
Very good
4,242 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,929 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,172 reviews
Southwest
8.0
Very good
4,242 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Cincinnati 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 Cincinnati to Illinois?

    Cincinnati Cinci./N. Kentucky (CVG) is the airport you will fly out of if you book a flight from Cincinnati to Illinois. It is only a 8.8 mi journey to Cinci./N. Kentucky (CVG) from Cincinnati’s city center.

  • How long is the flight from Cincinnati to Illinois?

    For as low as $217, Frontier can have you in Illinois from Cincinnati in 1h 34m. There are 265 mi between Cincinnati and Illinois. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Cincinnati to Illinois one-way?

    One-way options have recently been found by users for as low as $67 on United Airlines. Other airlines that offer cheap prices include Southwest from $70 and Frontier from $72 one-way.

  • What are the most popular routes from Cincinnati to Illinois?

    Most travelers choose Cincinnati Cinci./N. Kentucky - Chicago O'Hare Intl, Cincinnati Cinci./N. Kentucky - Chicago Midway or Cincinnati Cinci./N. Kentucky - Lambert-St Louis when deciding on the best route from Cincinnati to Illinois.

  • What are the most reliable airlines from Cincinnati to Illinois?

    Before booking your flight to Illinois from Cincinnati, check out the most reliable airlines to get you to your destination on time: Avianca (84%), SWISS (78%), Copa Airlines( 78%).

  • What are the cheapest flights from Cincinnati to Illinois?

    Looking at all options, your cheapest flight can be booked for $107. While the most popular route (Cincinnati Cinci./N. Kentucky - Chicago O'Hare Intl) can be booked for $184 on average, our data indicates $952 when flying from Cincinnati to Illinois.

  • Can I find deals for flights from Cincinnati to Illinois that include hotel bookings?

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

  • How can I find direct flights from Cincinnati to Illinois?

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

  • Can I find deals for business class flights from Cincinnati to Illinois?

    Yes. Cheapflights offers flight deals from Cincinnati 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 Cincinnati to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Cincinnati to Illinois (average of $245). Flying from Cincinnati to Illinois in March is currently the most expensive (average of $321). 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

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Top 4 airlines flying from Cincinnati to Illinois

Discover the top 4 airlines that operate flights from Cincinnati 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 setembro 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$144Average$198FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$145Average$314FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$151Average$311FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$152Average$288FlexibilityNo cancel feeOn-time71%

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