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$75+ 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CVG
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Cincinnati Cinci./N. Kentucky are usually found in October or March, 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 August 14, 2025.

Round-trip from

$150
(CheapOair)

One-way from

$75
(Mytrip)

Popular in

December

Cheapest in

October

Average price

$372
From Ontario to Cincinnati Cinci./N. Kentucky
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One-way flight from Ontario to Cincinnati Cinci./N. Kentucky
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Highest demand for flights based on searches. 5% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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 August 14, 2025.

This Mytrip deal was found by Cheapflights users on 8/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/212:59 amONT - CVG
1 stop20h 00mFrontier
Thu 9/43:20 pmCVG - ONT
1 stop7h 34mFrontier
Deal found 8/14$150
This CheapOair deal was found by Cheapflights users on 8/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/246:53 amONT - CVG
1 stop15h 56mFrontier
Sun 10/2612:01 pmCVG - ONT
1 stop8h 48mFrontier
Deal found 8/14$152
This CheapOair deal was found by Cheapflights users on 8/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/208:59 pmONT - CVG
1 stop25h 41mFrontier
Mon 9/298:00 amCVG - ONT
1 stop15h 56mFrontier
Deal found 8/14$158
This Booking.com deal was found by Cheapflights users on 8/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/198:59 pmONT - CVG
1 stop22h 42mFrontier
Mon 9/228:00 amCVG - ONT
1 stop15h 56mFrontier
Deal found 8/13$159
This Frontier deal was found by Cheapflights users on 8/14. 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.
Fri 10/34:08 pmONT - CVG
1 stop6h 32mFrontier
Sun 10/512:02 pmCVG - ONT
1 stop9h 33mFrontier
Deal found 8/14$162
This Frontier deal was found by Cheapflights users on 8/14. 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.
Thu 10/26:00 amONT - CVG
1 stop6h 43mFrontier
Sun 10/512:02 pmCVG - ONT
1 stop9h 33mFrontier
Deal found 8/14$169
This FlightHub deal was found by Cheapflights users on 8/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/138:59 pmONT - CVG
1 stop25h 41mFrontier
Mon 9/156:18 amCVG - ONT
1 stop16h 36mFrontier
Deal found 8/13$178
This Frontier deal was found by Cheapflights users on 8/14. 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.
Thu 9/183:43 pmONT - CVG
1 stop6h 57mFrontier
Sun 9/216:23 pmCVG - ONT
2 stops16h 30mFrontier
Deal found 8/14$190
This CheapOair deal was found by Cheapflights users on 8/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/208:59 pmONT - CVG
1 stop25h 41mFrontier
Wed 9/248:00 amCVG - ONT
1 stop26h 23mFrontier
Deal found 8/14$193
This Frontier deal was found by Cheapflights users on 8/13. 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.
Fri 9/512:13 pmONT - CVG
1 stop6h 49mFrontier
Mon 9/156:18 amCVG - ONT
2 stops17h 38mFrontier
Deal found 8/13$195

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 August 14, 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

Thu 10/2

8:59 pm-10:13 pm

1 stop22h 14m

Cincinnati Cinci./N. Kentucky

Sun 10/12

6:05 am-9:35 am

1 stop6h 30m

$150

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Tue 9/2

12:59 am-11:59 pm

1 stop20h 00m

Cincinnati Cinci./N. Kentucky

Thu 9/4

3:20 pm-7:54 pm

1 stop7h 34m

$150

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Tue 10/28

6:53 am-1:39 am

1 stop15h 46m

Cincinnati Cinci./N. Kentucky

Fri 10/31

6:05 am-11:10 am

1 stop8h 05m

$150

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Thu 9/18

3:43 pm-1:40 am

1 stop6h 57m

Cincinnati Cinci./N. Kentucky

Sun 9/21

6:18 am-7:53 am

1 stop28h 35m

$150

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Wed 9/10

8:59 pm-1:40 am

1 stop25h 41m

Cincinnati Cinci./N. Kentucky

Wed 9/17

8:00 am-7:23 am

1 stop26h 23m

$150

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Fri 9/5

4:08 pm-1:40 am

1 stop6h 32m

Cincinnati Cinci./N. Kentucky

Mon 9/15

1:14 pm-7:54 pm

1 stop9h 40m

$150

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Mon 10/20

6:53 am-1:39 am

1 stop15h 46m

Cincinnati Cinci./N. Kentucky

Wed 10/22

8:00 am-11:50 pm

1 stop18h 50m

$150

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Fri 10/24

6:53 am-1:49 am

1 stop15h 56m

Cincinnati Cinci./N. Kentucky

Sun 10/26

12:01 pm-5:49 pm

1 stop8h 48m

$152

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Sat 9/20

8:59 pm-1:40 am

1 stop25h 41m

Cincinnati Cinci./N. Kentucky

Mon 9/29

8:00 am-8:56 pm

1 stop15h 56m

$158

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Fri 9/19

8:59 pm-10:41 pm

1 stop22h 42m

Cincinnati Cinci./N. Kentucky

Mon 9/22

8:00 am-8:56 pm

1 stop15h 56m

$159

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 21 results
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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 August 8, 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 August 14, 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.

What’s the top layover airport for flights from Ontario to Cincinnati?

Share of 1-stop round-trip flights from Ontario to Cincinnati chosen by Cheapflights users in the past 12 months, using the same layover each way.

Denver (DEN) – chosen by Cheapflights users on 57% of 1-stop itineraries from Ontario to Cincinnati on Cheapflights.

What’s the cheapest layover airport for flights from Ontario to Cincinnati?

Average round-trip fare for 1-stop flights from Ontario to Cincinnati, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $243.

What’s the fastest layover option from Ontario to Cincinnati?

Shortest average travel time for 1-stop one-way flights from Ontario to Cincinnati, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 7h 11m.

Which airport typically offers the quickest layover for flights from Ontario to Cincinnati?

Average layover duration for 1-stop one-way flights from Ontario to Cincinnati, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Seattle (SEA) offer the fastest connection on this route, with an average layover time of 1h 34m.

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 August 14, 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
4,244 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

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
4,244 reviews
Southwest
8.0
Very good
4,244 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

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
7,980 reviews
Southwest
8.0
Very good
4,244 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

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
8,916 reviews
Southwest
8.0
Very good
4,244 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

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
4,244 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

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
3,217 reviews
Southwest
8.0
Very good
4,244 reviews

Crew

8.6

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Overall

8.0

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.

  • 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 $159. Additional round-trip tickets that might be worth considering are offered by Southwest and American Airlines, with the lowest prices starting at $312 and $318, 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

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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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$159Average$287FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$312Average$448FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$318Average$425FlexibilityNo cancel feeOn-time71%
DeltaCheapest$322Average$470FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$377Average$559FlexibilityNo cancel feeOn-time69%

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