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$55+ 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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
CVG — ORD
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
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 November 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$110
(Frontier)

One-way from

$55
(Priceline)

Popular in

February

Cheapest in

April

Average price

$270

Good round-trip deal

$341 or less

Good one-way deal

$154 or less
Provider with most accurate pricing for Cincinnati Cinci./N. Kentucky-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Cincinnati Cinci./N. Kentucky-Chicago (CHI) flights.
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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. 3% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 6, 2025.

This Frontier deal was found by Cheapflights users on 11/4. 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.
Sat 12/611:57 amCVG - STL
1 stop11h 36mFrontier
Mon 12/89:54 amSTL - CVG
1 stop8h 51mFrontier
Deal found 11/4$110
This Frontier deal was found by Cheapflights users on 11/6. 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.
Thu 12/48:55 pmCVG - STL
1 stop13h 04mFrontier
Wed 12/107:43 pmSTL - CVG
1 stop16h 30mFrontier
Deal found 11/6$111
This Booking.com deal was found by Cheapflights users on 11/5. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/45:05 amCVG - STL
1 stop18h 28mFrontier
Sat 12/63:30 pmSTL - CVG
1 stop16h 09mFrontier
Deal found 11/5$121
This Frontier deal was found by Cheapflights users on 11/3. 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.
Mon 12/811:57 amCVG - STL
1 stop11h 36mFrontier
Thu 12/111:16 pmSTL - CVG
1 stop9h 42mFrontier
Deal found 11/3$150
This Mytrip deal was found by Cheapflights users on 11/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/171:27 pmCVG - STL
1 stop20h 40mFrontier
Wed 11/197:45 pmSTL - CVG
1 stop14h 01mFrontier
Deal found 11/4$159
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/56:10 amCVG - STL
1 stop29h 04mFrontier
Fri 12/1210:42 amSTL - CVG
1 stop4h 41mFrontier
Deal found 11/4$178
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1111:59 amCVG - MDW
1 stop7h 09mFrontier
Sun 12/146:15 amMDW - CVG
1 stop27h 28mFrontier
Deal found 11/6$179
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/198:00 pmCVG - ORD
1 stop14h 01mMultiple Airlines
Sat 11/226:35 pmORD - CVG
1 stop14h 19mMultiple Airlines
Deal found 11/5$179
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/611:57 amCVG - ORD
2 stops11h 27mFrontier
Sun 12/72:36 pmORD - CVG
1 stop19h 16mFrontier
Deal found 11/4$180
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/198:00 pmCVG - ORD
1 stop14h 01mMultiple Airlines
Sun 11/237:00 amORD - CVG
1 stop16h 39mMultiple Airlines
Deal found 11/4$182
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/411:59 amCVG - MDW
1 stop7h 09mFrontier
Sun 12/76:37 pmMDW - CVG
1 stop15h 15mFrontier
Deal found 11/5$183
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/217:10 pmCVG - ORD
1 stop24h 16mMultiple Airlines
Tue 12/24:22 pmORD - CVG
2 stops24h 22mMultiple Airlines
Deal found 11/5$183

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 November 6, 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

Thu 12/4

8:55 pm-8:59 am

1 stop13h 04m

Lambert-St Louis

Wed 12/10

3:30 pm-10:52 am

1 stop18h 22m

$119

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Thu 12/4

5:05 am-10:33 pm

1 stop18h 28m

Lambert-St Louis

Sat 12/6

3:30 pm-8:39 am

1 stop16h 09m

$121

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Mon 12/8

11:57 am-10:33 pm

1 stop11h 36m

Lambert-St Louis

Thu 12/11

1:16 pm-11:58 pm

1 stop9h 42m

$150

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Mon 11/17

1:27 pm-9:07 am

1 stop20h 40m

Lambert-St Louis

Wed 11/19

7:45 pm-10:46 am

1 stop14h 01m

$159

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Fri 12/5

6:10 am-10:14 am

1 stop29h 04m

Lambert-St Louis

Fri 12/12

10:42 am-4:23 pm

1 stop4h 41m

$178

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Wed 1/21

8:05 am-10:33 pm

1 stop15h 28m

Lambert-St Louis

Sun 1/25

10:42 am-6:42 pm

1 stop7h 00m

$183

CincinnatiSt. Louis

CVG - STL

CVGSTL

Cincinnati Cinci./N. Kentucky

Thu 12/11

11:59 am-9:47 am

1 stop22h 48m

Lambert-St Louis

Fri 12/12

3:30 pm-11:24 pm

1 stop6h 54m

$201

CincinnatiChicago

CVG - ORD

CVGORD

Cincinnati Cinci./N. Kentucky

Fri 11/21

7:10 pm-5:59 pm

1 stop23h 49m

Chicago O'Hare Intl

Tue 12/2

3:53 pm-1:08 am

1 stop8h 15m

$204

CincinnatiChicago

CVG - ORD

CVGORD

Cincinnati Cinci./N. Kentucky

Thu 12/4

2:05 pm-2:40 pm

Nonstop1h 35m

Chicago O'Hare Intl

Fri 12/5

7:13 am-9:33 am

Nonstop1h 20m

$207

CincinnatiChicago

CVG - ORD

CVGORD

Cincinnati Cinci./N. Kentucky

Thu 12/4

11:59 am-10:38 pm

2 stops11h 39m

Chicago O'Hare Intl

Fri 12/5

1:34 pm-10:48 pm

1 stop8h 14m

$207

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

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, January is the cheapest month in which you can book a flight from Cincinnati to Illinois (average of $73). Flying from Cincinnati to Illinois in July is currently the most expensive (average of $167). 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 November 6, 2025.

It’s optimal to fly from Cincinnati to Illinois in the evening. By choosing this option you can save up to 28% on the cost of your flight, compared to a flight at noon.

What is the cheapest day to fly from Cincinnati to Illinois?

Use this chart to determine the cheapest time to fly round-trip from Cincinnati to Illinois. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Cincinnati to Illinois flight should consider departing on Friday afternoons when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 6, 2025.

The most flights from CVG to USIL are scheduled on a Thursday (63 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (32 on average).

How much does it cost to fly round-trip from Cincinnati to Illinois?

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 November 6, 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
4,241 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

8.0

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
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

8.0

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
9,007 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

8.0

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
11,040 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

8.0

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
3,116 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

8.0

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 $207, Frontier can have you in Illinois from Cincinnati in 1h 35m. 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 $104 on Southwest. Other airlines that offer cheap prices include United Airlines from $104 and Delta from $114 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 (88%), Republic Airways (86%), ANA( 83%).

  • What are the cheapest flights from Cincinnati to Illinois?

    Looking at all options, your cheapest flight can be booked for $124. While the most popular route (Cincinnati Cinci./N. Kentucky - Chicago O'Hare Intl) can be booked for $152 on average, our data indicates $936 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, January is the cheapest month in which you can book a flight from Cincinnati to Illinois (average of $73). Flying from Cincinnati to Illinois in July is currently the most expensive (average of $167). 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.

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Alternative routes for Cincinnati to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Cincinnati to Illinois

Discover the top 3 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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$137Average$310FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$153Average$286FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$183Average$311FlexibilityNo cancel feeOn-time63%

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