HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Cincinnati

$80+ Cheap flights from Ontario to Cincinnati (ONT - CVG)

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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CVG
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Cincinnati with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Ontario to Cincinnati Cinci./N. Kentucky are usually found in October or September, booked 28 days in advance, depart on a Wednesday or Monday and return on a Thursday

Cheap flight deals from Ontario to Cincinnati

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Cincinnati (CVG). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated septiembre 17, 2025.

Round-trip from

$150
(CheapOair)

One-way from

$80
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$336
From Ontario to Cincinnati Cinci./N. Kentucky
Search Deals
One-way flight from Ontario to Cincinnati Cinci./N. Kentucky
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Ontario to Cincinnati

Cheapest flights from Ontario to Cincinnati
Explore the most affordable flight options available from Ontario to Cincinnati. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 17, 2025.

This CheapOair deal was found by Cheapflights users on 9/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/18:59 pmONT - CVG
1 stop25h 44mFrontier
dom. 10/56:18 amCVG - ONT
1 stop28h 35mFrontier
Deal found 9/16$150
This CheapOair deal was found by Cheapflights users on 9/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/910:30 amONT - CVG
1 stop12h 09mFrontier
dom. 10/1212:01 pmCVG - ONT
1 stop8h 48mFrontier
Deal found 9/17$152
This CheapOair deal was found by Cheapflights users on 9/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/166:05 amONT - CVG
1 stop21h 49mFrontier
jue. 10/236:14 pmCVG - ONT
1 stop8h 36mFrontier
Deal found 9/16$156
This Frontier deal was found by Cheapflights users on 9/16. 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.
sáb. 11/112:05 pmONT - CVG
1 stop8h 54mFrontier
dom. 11/912:01 pmCVG - ONT
1 stop9h 48mFrontier
Deal found 9/16$162
This Kiwi.com deal was found by Cheapflights users on 9/17. 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.
lun. 10/612:13 pmONT - CVG
1 stop6h 46mFrontier
mar. 10/148:00 amCVG - ONT
1 stop18h 50mFrontier
Deal found 9/17$169
This CheapOair deal was found by Cheapflights users on 9/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/206:53 amONT - CVG
1 stop15h 46mFrontier
jue. 10/236:14 pmCVG - ONT
1 stop8h 36mFrontier
Deal found 9/16$171
This Kiwi.com deal was found by Cheapflights users on 9/17. 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.
mar. 10/77:04 amONT - CVG
1 stop13h 55mFrontier
vie. 10/179:10 pmCVG - ONT
1 stop18h 27mFrontier
Deal found 9/17$175
This CheapOair deal was found by Cheapflights users on 9/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 9/268:59 pmONT - CVG
1 stop22h 42mFrontier
lun. 9/298:00 amCVG - ONT
1 stop9h 00mFrontier
Deal found 9/17$177
This Kiwi.com deal was found by Cheapflights users on 9/17. 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.
mar. 10/77:04 amONT - CVG
1 stop13h 55mFrontier
lun. 10/131:48 pmCVG - ONT
1 stop13h 02mFrontier
Deal found 9/17$190
This Frontier deal was found by Cheapflights users on 9/17. 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.
vie. 10/312:13 pmONT - CVG
1 stop6h 49mFrontier
lun. 10/68:00 amCVG - ONT
1 stop9h 00mFrontier
Deal found 9/17$192
This CheapOair deal was found by Cheapflights users on 9/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/612:13 pmONT - CVG
1 stop6h 46mFrontier
mié. 10/88:00 amCVG - ONT
1 stop28h 35mFrontier
Deal found 9/16$195
This CheapOair deal was found by Cheapflights users on 9/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/612:13 pmONT - CVG
1 stop6h 46mFrontier
jue. 10/912:01 pmCVG - ONT
1 stop8h 53mFrontier
Deal found 9/17$197

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Cincinnati 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 septiembre 17, 2025.
Use the filters below to find and compare flights from Ontario to Cincinnati that are best for you.

Fly from

Ontario

Fly to

Cincinnati

Route

Depart

Return

Price

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

vie. 10/3

8:59 pm-10:41 pm

1 stop22h 42m

Cincinnati Cinci./N. Kentucky

dom. 10/5

6:18 am-7:53 am

1 stop28h 35m

$150

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

vie. 11/7

7:44 pm-6:54 am

1 stop8h 10m

Cincinnati Cinci./N. Kentucky

jue. 11/13

6:05 am-11:10 am

1 stop8h 05m

$162

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

vie. 11/7

4:05 pm-1:39 am

1 stop6h 34m

Cincinnati Cinci./N. Kentucky

mar. 11/11

10:24 am-9:29 pm

1 stop14h 05m

$171

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

mié. 11/12

6:53 am-5:10 pm

2 stops31h 17m

Cincinnati Cinci./N. Kentucky

sáb. 11/15

8:00 am-11:50 pm

1 stop18h 50m

$204

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

lun. 10/6

12:13 pm-1:56 pm

2 stops46h 43m

Cincinnati Cinci./N. Kentucky

mié. 10/8

7:27 pm-3:32 pm

2 stops23h 05m

$239

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

vie. 10/24

11:53 am-10:30 am

2 stops19h 37m

Cincinnati Cinci./N. Kentucky

lun. 10/27

12:52 pm-11:50 pm

2 stops37h 58m

$273

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

mar. 11/4

7:35 am-6:45 pm

1 stop8h 10m

Cincinnati Cinci./N. Kentucky

mié. 11/12

6:45 am-5:09 pm

1 stop13h 24m

$319

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

lun. 11/3

7:35 am-6:45 pm

1 stop8h 10m

Cincinnati Cinci./N. Kentucky

mié. 11/12

6:45 am-5:09 pm

1 stop13h 24m

$319

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

mar. 11/4

7:35 am-6:45 pm

1 stop8h 10m

Cincinnati Cinci./N. Kentucky

sáb. 11/8

6:52 am-5:10 pm

1 stop13h 18m

$319

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

vie. 11/7

9:59 am-10:34 pm

2 stops9h 35m

Cincinnati Cinci./N. Kentucky

mar. 11/11

8:51 am-4:03 pm

2 stops10h 12m

$368

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 21 results
1
2
3

Best time to book a flight from Ontario to Cincinnati

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

How far ahead should I book a flight from Ontario to Cincinnati?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Cincinnati. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Ontario to Cincinnati, you should look to book at least 28 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, August is the cheapest month in which you can book a flight from Ontario to Cincinnati (average of $239). Flying from Ontario to Cincinnati in March is currently the most expensive (average of $292). 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 ONT to CVG?

Find hourly flight availability from Ontario to Cincinnati. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 17, 2025.

It’s optimal to fly from Ontario to Cincinnati in the evening. By choosing this option you can save up to 48% on the cost of your flight, compared to a flight in the morning.

Reviews of airlines servicing Cincinnati

Get insights into the airlines that provide service to Cincinnati. 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 Cincinnati. Reviews last updated septiembre 17, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Ontario to Cincinnati to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,961 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,926 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,173 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Comfort

8.0

Overall

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Cincinnati. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to Cincinnati?

    For as low as $150, Frontier can have you in Cincinnati from Ontario in 22h 42m. Airlines will cover a distance of 1849 mi.

  • What are the cheapest airlines flying from Ontario to Cincinnati round-trip?

    Flying on Frontier is currently your cheapest option to Cincinnati, with prices starting at $157. Additional round-trip tickets that might be worth considering are offered by Delta and Southwest, with the lowest prices starting at $304 and $312, respectively. These flights start at 62% lower than the current average price 3 months from now.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Ontario to Cincinnati (average of $239). Flying from Ontario to Cincinnati in March is currently the most expensive (average of $292). 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

Traveling to a place near Cincinnati?

Book flights to Cincinnati if you plan to visit one of these locations
Florence
Newport
Mason
Sharonville
West Chester
Covington
Hebron
Lawrenceburg
Fairfield
Blue Ash
Williamstown
Sparta
Middletown
Oxford
Edgewood
Dry Ridge

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Cincinnati

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Detroit flights
San Francisco to Detroit flights
Los Angeles to Cleveland flights
Santa Ana to Detroit flights
Ontario to Detroit flights
San Diego to Detroit flights
Burbank to Detroit flights
Los Angeles to Pittsburgh flights
San Francisco to Cleveland flights
San Francisco to Pittsburgh flights
Los Angeles to Columbus flights
Los Angeles to Cincinnati flights
San Francisco to Columbus flights
San Francisco to Cincinnati flights
San Jose to Detroit flights
Ontario to Cleveland flights
Las Vegas to Cleveland flights
Ontario to Pittsburgh flights
Sacramento to Detroit flights
Santa Ana to Pittsburgh flights
San Diego to Cincinnati flights
San Diego to Pittsburgh flights
Oakland to Detroit flights
Ontario to Columbus flights
Burbank to Columbus flights
Santa Ana to Cincinnati flights
Sacramento to Cincinnati flights
Las Vegas to Detroit flights
Santa Ana to Cleveland flights
Las Vegas to Cincinnati flights
Long Beach to Detroit flights
Los Angeles to Dayton flights
Las Vegas to Pittsburgh flights
San Jose to Cleveland flights
San Diego to Cleveland flights
San Diego to Columbus flights
Santa Ana to Columbus flights
Sacramento to Columbus flights
Los Angeles to Akron flights
San Jose to Cincinnati flights
Ontario to Dayton flights
Burbank to Pittsburgh flights
Reno to Detroit flights
Las Vegas to Columbus flights
Burbank to Cleveland flights
Burbank to Cincinnati flights
Palm Springs to Pittsburgh flights
Sacramento to Pittsburgh flights
San Jose to Pittsburgh flights

Top 5 airlines flying from Ontario to Cincinnati

Discover the top 5 airlines that operate flights from Ontario to Cincinnati. 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 septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$157Average$276FlexibilityNo cancel feeOn-time62%
DeltaCheapest$304Average$445FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$312Average$438FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$316Average$420FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$377Average$559FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.