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$126+ 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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CVG
Aug 14 — Aug 211
Fri 8/14
Fri 8/21
1 adult, Economy
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Cheap 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 July 15, 2026.

This Super.com deal was found by Cheapflights users on 7/14. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/138:17 am
ONT
-
CVG
1 stop7h 05m
Frontier
Thu 8/208:30 pm
CVG
-
ONT
1 stop6h 20m
Frontier
Deal found 7/14$257
This Frontier deal was found by Cheapflights users on 7/15. 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.
Tue 8/186:00 am
ONT
-
CVG
1 stop10h 35m
Frontier
Mon 8/248:30 pm
CVG
-
ONT
1 stop6h 20m
Frontier
Deal found 7/15$258
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 8/55:08 pm
ONT
-
CVG
1 stop24h 14m
Frontier
Mon 8/107:52 pm
CVG
-
ONT
1 stop15h 49m
Frontier
Deal found 7/11$259
This Frontier deal was found by Cheapflights users on 7/14. 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.
Wed 8/126:00 am
ONT
-
CVG
1 stop10h 29m
Frontier
Tue 8/258:30 pm
CVG
-
ONT
1 stop6h 20m
Frontier
Deal found 7/14$261
This CheapOair deal was found by Cheapflights users on 7/14. 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.
Wed 9/238:07 am
ONT
-
CVG
1 stop12h 52m
Frontier
Sat 9/2612:25 pm
CVG
-
ONT
1 stop14h 30m
Frontier
Deal found 7/14$268
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 8/263:40 pm
ONT
-
CVG
1 stop25h 45m
Frontier
Wed 9/212:26 pm
CVG
-
ONT
2 stops22h 06m
Frontier
Deal found 7/11$269
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 8/55:08 pm
ONT
-
CVG
1 stop19h 48m
Multiple Airlines
Mon 8/1012:53 pm
CVG
-
ONT
2 stops21h 39m
Multiple Airlines
Deal found 7/11$273
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/263:40 pm
ONT
-
CVG
1 stop20h 08m
Multiple Airlines
Mon 8/3112:26 pm
CVG
-
ONT
2 stops38h 24m
Multiple Airlines
Deal found 7/14$276
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 8/208:17 am
ONT
-
CVG
2 stops24h 04m
Frontier
Tue 8/259:20 pm
CVG
-
ONT
1 stop21h 34m
Frontier
Deal found 7/10$278
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/227:56 pm
ONT
-
CVG
1 stop20h 39m
Frontier
Wed 9/212:26 pm
CVG
-
ONT
2 stops24h 38m
Frontier
Deal found 7/15$284

Find 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 July 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$257
(Super.com)

One-way from

$126
(Super.com)

Popular in

July

Cheapest in

September

Average price

$528
Provider with most accurate pricing for Ontario-Cincinnati Cinci./N. Kentucky flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Cincinnati Cinci./N. Kentucky flights.
Search Deals
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. 2% potential increase in price ($10 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 July 15, 2026.
Use the filters below to find and compare flights from Ontario to Cincinnati that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Tue 8/11

6:00 am-2:49 pm

1 stop5h 49m

Cincinnati Cinci./N. Kentucky

Sat 8/29

7:55 am-12:16 pm

1 stop7h 21m

$377
Quickest round-trip

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Wed 8/19

6:00 am-2:49 pm

1 stop5h 49m

Cincinnati Cinci./N. Kentucky

Mon 8/24

7:29 pm-11:34 pm

1 stop7h 05m

$377

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Sat 8/22

7:05 am-6:50 pm

2 stops8h 45m

Cincinnati Cinci./N. Kentucky

Wed 9/2

2:20 pm-8:55 pm

2 stops9h 35m

$387

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Tue 9/15

5:00 am-2:23 pm

1 stop6h 23m

Cincinnati Cinci./N. Kentucky

Fri 9/18

6:08 pm-10:59 pm

1 stop7h 51m

$403

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Wed 8/26

9:01 am-11:53 pm

2 stops11h 52m

Cincinnati Cinci./N. Kentucky

Sat 8/29

11:17 am-8:53 pm

2 stops12h 36m

$413

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Thu 8/6

1:06 pm-10:41 pm

1 stop6h 35m

Cincinnati Cinci./N. Kentucky

Sun 8/23

7:29 pm-11:34 pm

1 stop7h 05m

$432

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Wed 8/5

7:45 am-6:35 pm

2 stops7h 50m

Cincinnati Cinci./N. Kentucky

Mon 8/10

5:25 pm-10:05 pm

2 stops7h 40m

$437

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Tue 8/11

1:18 pm-10:30 pm

1 stop6h 12m

Cincinnati Cinci./N. Kentucky

Thu 8/13

12:29 pm-10:59 pm

2 stops13h 30m

$482

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Sat 8/8

6:10 am-11:21 pm

2 stops14h 11m

Cincinnati Cinci./N. Kentucky

Wed 8/26

8:00 am-6:16 pm

2 stops13h 16m

$487

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Sun 8/2

10:00 pm-8:56 am

1 stop7h 56m

Cincinnati Cinci./N. Kentucky

Thu 8/6

5:48 pm-9:52 pm

1 stop7h 04m

$489

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/10

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Compare providers for flights from Ontario to Cincinnati

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Cincinnati in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Cincinnati flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Cincinnati flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Cincinnati flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Cincinnati flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Cincinnati flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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?

To ensure you get the cheapest price possible for a flight from Ontario to Cincinnati, you should look to book at least 59 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, September is the cheapest month in which you can book a flight from Ontario to Cincinnati (average of $326). Flying from Ontario to Cincinnati in July is currently the most expensive (average of $528). 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.

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

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 July 15, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andAmerican 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.
Delta
7.8
Good
8,467 reviews

Crew

8.5

Boarding

8.1

Overall

7.8

Entertainment

7.8

Food

7.2

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Delta
7.8
Good
8,467 reviews
Delta
7.8
Good
8,467 reviews

Crew

8.5

Boarding

8.1

Overall

7.8

Entertainment

7.8

Food

7.2

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
United Airlines
7.4
Good
9,988 reviews
Delta
7.8
Good
8,467 reviews

Crew

8.5

Boarding

8.1

Overall

7.8

Entertainment

7.8

Food

7.2

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
American Airlines
7.1
Good
11,809 reviews
Delta
7.8
Good
8,467 reviews

Crew

8.5

Boarding

8.1

Overall

7.8

Entertainment

7.8

Food

7.2

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Frontier
5.6
Fair
2,808 reviews
Delta
7.8
Good
8,467 reviews

Crew

8.5

Boarding

8.1

Overall

7.8

Entertainment

7.8

Food

7.2

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

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 $387, Southwest can have you in Cincinnati from Ontario in 8h 45m. Airlines will cover a distance of 1849 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $150. Additional round-trip tickets that might be worth considering are offered by American Airlines and Delta, with the lowest prices starting at $299 and $303, respectively. These flights start at 63% lower than the current average price 3 months from now.

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

    The cheapest airlines for a one-way flight from Ontario to Cincinnati are Frontier ($84), United Airlines ($101), and American Airlines ($111).

  • 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, September is the cheapest month in which you can book a flight from Ontario to Cincinnati (average of $326). Flying from Ontario to Cincinnati in July is currently the most expensive (average of $528). 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
Blue Ash
Mason
Sharonville
Williamstown
West Chester
Hebron
Newport
Covington
Sparta
Edgewood
Middletown

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Top 4 airlines flying from Ontario to Cincinnati

Discover the top 4 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 July 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$150Average$266FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$299Average$412FlexibilityNo cancel feeOn-time71%
DeltaCheapest$303Average$437FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$304Average$479FlexibilityNo cancel feeOn-time69%

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