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$85+ 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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CVG
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
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 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 October 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$170
(Frontier)

One-way from

$85
(CheapOair)

Popular in

December

Cheapest in

October

Average price

$318
Provider with most accurate pricing for Ontario-Cincinnati Cinci./N. Kentucky flight deals.
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Provider most trusted by Cheapflights users for Ontario-Cincinnati Cinci./N. Kentucky flights.
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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. 8% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 23, 2025.

This Frontier deal was found by Cheapflights users on 10/22. 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 11/67:44 pmONT - CVG
1 stop8h 10mFrontier
Mon 11/106:05 amCVG - ONT
1 stop8h 05mFrontier
Deal found 10/22$170
This Booking.com deal was found by Cheapflights users on 10/20. 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 11/137:22 amONT - CVG
1 stop6h 36mFrontier
Tue 11/1810:24 amCVG - ONT
1 stop14h 03mFrontier
Deal found 10/20$172
This Kiwi.com deal was found by Cheapflights users on 10/21. 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.
Tue 11/48:45 amONT - CVG
1 stop10h 23mFrontier
Wed 11/59:30 pmCVG - ONT
1 stop14h 40mFrontier
Deal found 10/21$185
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 11/58:45 amONT - CVG
1 stop10h 23mFrontier
Wed 11/129:30 pmCVG - ONT
1 stop14h 40mFrontier
Deal found 10/22$193
This Frontier deal was found by Cheapflights users on 10/21. 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 11/16:53 amONT - CVG
1 stop10h 27mFrontier
Sun 11/212:01 pmCVG - ONT
1 stop9h 48mFrontier
Deal found 10/21$194
This Frontier deal was found by Cheapflights users on 10/22. 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 11/58:45 amONT - CVG
1 stop10h 23mFrontier
Mon 11/106:05 amCVG - ONT
1 stop8h 05mFrontier
Deal found 10/22$196
This Frontier deal was found by Cheapflights users on 10/21. 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 11/67:44 pmONT - CVG
1 stop8h 10mFrontier
Sun 11/99:30 pmCVG - ONT
1 stop12h 47mFrontier
Deal found 10/21$202
This Mytrip deal was found by Cheapflights users on 10/21. 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.
Sat 11/812:05 pmONT - CVG
1 stop8h 54mFrontier
Tue 11/1110:24 amCVG - ONT
1 stop14h 05mFrontier
Deal found 10/21$204
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 11/112:05 pmONT - CVG
1 stop8h 54mFrontier
Wed 11/59:30 pmCVG - ONT
1 stop14h 40mFrontier
Deal found 10/21$206

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 October 23, 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

Wed 11/5

8:45 am-10:08 pm

1 stop10h 23m

Cincinnati Cinci./N. Kentucky

Thu 11/13

6:05 am-11:10 am

1 stop8h 05m

$196

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Wed 11/12

6:45 am-6:42 pm

1 stop8h 57m

Cincinnati Cinci./N. Kentucky

Sat 11/15

6:05 am-5:09 pm

2 stops14h 04m

$292

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Sat 11/15

6:00 am-5:30 pm

1 stop8h 30m

Cincinnati Cinci./N. Kentucky

Tue 11/18

6:30 pm-11:05 am

1 stop19h 35m

$304

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Fri 2/27

10:30 pm-10:21 am

1 stop8h 51m

Cincinnati Cinci./N. Kentucky

Wed 3/4

7:00 am-3:20 pm

1 stop11h 20m

$304

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Thu 2/19

6:00 am-5:10 pm

1 stop8h 10m

Cincinnati Cinci./N. Kentucky

Sun 2/22

8:00 am-6:17 pm

1 stop13h 17m

$314

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Sun 12/7

6:15 am-11:58 pm

1 stop14h 43m

Cincinnati Cinci./N. Kentucky

Sun 12/14

2:23 pm-2:04 pm

1 stop26h 41m

$314

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Sat 11/15

6:00 am-3:09 pm

1 stop6h 09m

Cincinnati Cinci./N. Kentucky

Wed 11/19

8:05 am-12:18 pm

1 stop7h 13m

$319

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Sun 12/7

1:29 pm-10:54 pm

1 stop6h 25m

Cincinnati Cinci./N. Kentucky

Sun 12/14

7:59 pm-11:58 pm

1 stop6h 59m

$330

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Mon 11/10

4:05 pm-1:39 am

1 stop6h 34m

$85

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Thu 11/20

6:30 am-4:03 pm

1 stop6h 33m

$85

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/20

Showing 1-10 of 17 results
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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Cincinnati. Price data was last updated on October 17, 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, June is the cheapest month in which you can book a flight from Ontario to Cincinnati (average of $71). Flying from Ontario to Cincinnati in November is currently the most expensive (average of $192). 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 October 23, 2025.

It’s optimal to fly from Ontario to Cincinnati in the evening. By choosing this option you can save up to 47% 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 October 23, 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
4,236 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

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
4,236 reviews
Southwest
8.0
Very good
4,236 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

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
7.9
Good
7,982 reviews
Southwest
8.0
Very good
4,236 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

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
8,995 reviews
Southwest
8.0
Very good
4,236 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

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
11,033 reviews
Southwest
8.0
Very good
4,236 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

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
3,128 reviews
Southwest
8.0
Very good
4,236 reviews

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

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 $304, Frontier can have you in Cincinnati from Ontario in 8h 30m. 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 $157. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $304 and $304, 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, June is the cheapest month in which you can book a flight from Ontario to Cincinnati (average of $71). Flying from Ontario to Cincinnati in November is currently the most expensive (average of $192). 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
Sharonville
Mason
West Chester
Covington
Hebron
Lawrenceburg
Fairfield
Blue Ash
Williamstown
Sparta
Middletown
Edgewood
Oxford
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 October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$157Average$276FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$304Average$559FlexibilityNo cancel feeOn-time69%
DeltaCheapest$304Average$444FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$312Average$438FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$316Average$422FlexibilityNo cancel feeOn-time71%

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