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

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

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

Flights via Chicago (ORD) offer the fastest connection on this route, with an average layover time of 1h 22m.

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

Denver (DEN) – chosen by Cheapflights users on 50% of 1-stop itineraries from Ontario to Cincinnati on Cheapflights.

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

Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 6h 40m.

How long is the flight from Ontario to Cincinnati?

For as low as $231, Southwest can have you in Cincinnati from Ontario in 5h 40m. 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 $139. 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 66% 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 ($81), American Airlines ($111), and Delta ($151).

In terms of precipitation, rainfall in Cincinnati ranges from 2.8 - 4.2 inches per month. May is typically the wettest month, when rainfall can reach 4.2 in. September is typically the driest time to visit Cincinnati when rainfall is around 2.8 in.

If weather is an important factor for your trip to Cincinnati, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

What are the most popular airlines that fly from Ontario to Cincinnati?

Consider American Airlines, Frontier or Delta when booking your flight. These represent the most popular airlines when flying from Ontario to Cincinnati.

Most accurate provider : When it comes to deals on Ontario-Cincinnati flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Cincinnati flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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.

$74+ Flights from Ontario to Cincinnati

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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 September or October, booked 28 days in advance, depart on a Wednesday or Monday and return on a Thursday

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 December 4, 2025.

Sat 12/133:20 pmONT - CVG

1 stop25h 12mFrontier

Sat 12/209:30 pmCVG - ONT

1 stop23h 12mFrontier

Deal found 12/1

$205

Thu 12/186:45 amONT - CVG

1 stop16h 23mFrontier

Sun 12/218:20 pmCVG - ONT

1 stop23h 55mFrontier

Deal found 12/3

$208

Fri 12/196:00 amONT - CVG

1 stop10h 10mFrontier

Sun 12/218:20 pmCVG - ONT

1 stop27h 57mFrontier

Deal found 12/1

$217

Thu 12/116:15 amONT - CVG

1 stop14h 43mFrontier

Mon 12/158:20 pmCVG - ONT

1 stop27h 57mFrontier

Deal found 12/3

$225

Mon 12/86:15 amONT - CVG

1 stop9h 55mFrontier

Mon 12/158:20 pmCVG - ONT

1 stop27h 57mFrontier

Deal found 12/2

$227

Thu 12/186:45 amONT - CVG

1 stop16h 23mFrontier

Mon 12/228:20 pmCVG - ONT

1 stop27h 57mFrontier

Deal found 12/3

$228

Thu 12/112:59 pmONT - CVG

1 stop5h 59mFrontier

Fri 12/122:23 pmCVG - ONT

1 stop9h 54mFrontier

Deal found 12/2

$229

Thu 12/186:17 pmONT - CVG

1 stop21h 53mFrontier

Thu 12/256:10 amCVG - ONT

1 stop20h 49mFrontier

Deal found 12/2

$232

Sat 12/206:45 amONT - CVG

1 stop16h 23mFrontier

Sun 1/48:20 pmCVG - ONT

1 stop23h 55mFrontier

Deal found 12/1

$242

Thu 12/256:45 amONT - CVG

1 stop26h 28mFrontier

Fri 1/92:24 pmCVG - ONT

1 stop27h 02mFrontier

Deal found 12/3

$243

Best flights from Ontario to Cincinnati
Discover carefully curated flight deals from Ontario to Cincinnati that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 4, 2025.

Mon 2/26:30 amONT - CVG

1 stop5h 40mSouthwest

Wed 2/47:00 amCVG - ONT

2 stops12h 05mSouthwest

Deal found 12/2

$231

Thu 1/86:00 amONT - CVG

1 stop10h 49mAlaska Airlines

Mon 1/128:00 amCVG - ONT

1 stop10h 08mAlaska Airlines

Deal found 12/3

$236

Wed 12/316:00 amONT - CVG

2 stops41h 08mFrontier

Sun 1/48:20 pmCVG - ONT

1 stop27h 57mFrontier

Deal found 12/4

$292

Wed 3/47:30 amONT - CVG

2 stops12h 03mDelta

Mon 3/912:00 pmCVG - ONT

2 stops13h 33mDelta

Deal found 12/2

$317

Sun 1/256:00 amONT - CVG

2 stops11h 46mUnited Airlines

Fri 1/303:29 pmCVG - ONT

2 stops10h 24mUnited Airlines

Deal found 12/2

$326

Mon 1/126:00 amONT - CVG

1 stop10h 49mAlaska Airlines

Wed 1/148:00 amCVG - ONT

1 stop10h 08mAlaska Airlines

Deal found 12/3

$256

Fri 12/196:00 amONT - CVG

1 stop10h 10mFrontier

Fri 1/28:20 pmCVG - ONT

1 stop23h 11mFrontier

Deal found 12/3

$293

Thu 1/221:24 pmONT - CVG

1 stop5h 59mUnited Airlines

Tue 2/39:00 amCVG - ONT

2 stops11h 55mUnited Airlines

Deal found 12/4

$332

Fri 12/196:00 amONT - CVG

1 stop10h 10mFrontier

Thu 1/17:16 pmCVG - ONT

1 stop7h 43mFrontier

Deal found 12/3

$307

Thu 1/85:05 amONT - CVG

2 stops8h 38mUnited Airlines

Mon 1/123:29 pmCVG - ONT

1 stop8h 29mUnited Airlines

Deal found 12/2

$332

Wed 1/75:05 amONT - CVG

2 stops12h 41mUnited Airlines

Mon 1/123:29 pmCVG - ONT

1 stop8h 29mUnited Airlines

Deal found 12/3

$332

Last-minute flights from Ontario to Cincinnati
Discover last-minute flight deals from Ontario to Cincinnati. Data last updated December 4, 2025 and is based on user searches.

Sat 12/133:20 pmONT - CVG

1 stop25h 12mFrontier

Sat 12/209:30 pmCVG - ONT

1 stop23h 12mFrontier

Deal found 12/1

$205

Wed 1/77:00 amONT - CVG

1 stop27h 13mFrontier

Sun 1/119:05 pmCVG - ONT

2 stops19h 34mFrontier

Deal found 12/3

$172

Wed 1/77:00 amONT - CVG

1 stop27h 13mFrontier

Mon 1/126:10 amCVG - ONT

1 stop20h 46mFrontier

Deal found 12/3

$183

Sun 1/188:32 amONT - CVG

1 stop12h 58mFrontier

Sun 1/252:10 pmCVG - ONT

1 stop27h 31mFrontier

Deal found 12/2

$201

Thu 1/226:20 amONT - CVG

1 stop11h 28mFrontier

Fri 1/302:10 pmCVG - ONT

1 stop8h 43mFrontier

Deal found 12/3

$148

Thu 1/226:20 amONT - CVG

1 stop11h 28mFrontier

Thu 1/292:11 pmCVG - ONT

1 stop8h 42mFrontier

Deal found 12/3

$149

Thu 1/226:20 amONT - CVG

1 stop11h 28mFrontier

Sun 1/251:45 pmCVG - ONT

1 stop13h 35mFrontier

Deal found 12/1

$170

Fri 1/2310:18 amONT - CVG

1 stop10h 39mFrontier

Fri 1/302:10 pmCVG - ONT

1 stop8h 43mFrontier

Deal found 12/2

$158

Fri 1/2310:18 amONT - CVG

1 stop10h 39mFrontier

Sun 1/252:10 pmCVG - ONT

1 stop8h 22mFrontier

Deal found 12/1

$189

Sun 1/256:20 amONT - CVG

1 stop11h 33mFrontier

Fri 1/302:10 pmCVG - ONT

1 stop8h 43mFrontier

Deal found 12/2

$169

Sun 1/256:20 amONT - CVG

1 stop11h 33mFrontier

Mon 1/262:11 pmCVG - ONT

2 stops27h 56mFrontier

Deal found 12/2

$195

One-way flights from Ontario to Cincinnati
Search for one-way flight options from Ontario to Cincinnati. Find affordable one-way fares based on user searches. Data last updated December 4, 2025.

Sun 2/110:13 amONT - CVG

1 stop9h 00mFrontier

Deal found 12/4

$74

Fri 1/306:20 amONT - CVG

1 stop11h 33mFrontier

Deal found 12/3

$75

Thu 1/2911:04 amONT - CVG

1 stop9h 54mFrontier

Deal found 12/4

$80

Thu 12/116:15 amONT - CVG

1 stop14h 43mFrontier

Deal found 12/2

$83

Thu 1/152:34 pmONT - CVG

1 stop6h 55mFrontier

Deal found 12/1

$91

Wed 12/246:45 amONT - CVG

1 stop27h 28mFrontier

Deal found 12/2

$98

Mon 12/156:15 amONT - CVG

1 stop9h 55mFrontier

Deal found 12/2

$112

Wed 12/176:15 amONT - CVG

2 stops25h 37mFrontier

Deal found 12/3

$115

Thu 2/126:00 amONT - CVG

1 stop28h 15mFrontier

Deal found 12/4

$119

Thu 12/256:45 amONT - CVG

1 stop16h 23mFrontier

Deal found 12/3

$120

Thu 12/186:45 amONT - CVG

1 stop16h 23mFrontier

Deal found 12/2

$122

Find flight deals from Ontario to Cincinnati

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$148 (Frontier)
One-way from	$74 (Frontier)
Popular in	December
Cheapest in	September
Average price	$559

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. 6% potential increase in price ($30 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Mon 2/2

6:30 am-3:10 pm

1 stop5h 40m

Cincinnati Cinci./N. Kentucky

Wed 2/4

7:00 am-4:05 pm

2 stops12h 05m

$231

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Thu 1/8

6:00 am-7:49 pm

1 stop10h 49m

Cincinnati Cinci./N. Kentucky

Mon 1/12

8:00 am-3:08 pm

1 stop10h 08m

$236

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Mon 1/12

6:00 am-7:49 pm

1 stop10h 49m

Cincinnati Cinci./N. Kentucky

Wed 1/14

8:00 am-3:08 pm

1 stop10h 08m

$256

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Wed 12/31

6:00 am-2:08 am

2 stops41h 08m

Cincinnati Cinci./N. Kentucky

Sun 1/4

8:20 pm-9:17 pm

1 stop27h 57m

$292

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Fri 12/19

6:00 am-7:10 pm

1 stop10h 10m

Cincinnati Cinci./N. Kentucky

Fri 1/2

8:20 pm-4:31 pm

1 stop23h 11m

$293

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Fri 12/19

6:00 am-7:10 pm

1 stop10h 10m

Cincinnati Cinci./N. Kentucky

Thu 1/1

7:16 pm-11:59 pm

1 stop7h 43m

$307

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Wed 3/4

7:30 am-10:33 pm

2 stops12h 03m

Cincinnati Cinci./N. Kentucky

Mon 3/9

12:00 pm-10:33 pm

2 stops13h 33m

$317

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Sun 1/25

6:00 am-8:46 pm

2 stops11h 46m

Cincinnati Cinci./N. Kentucky

Fri 1/30

3:29 pm-10:53 pm

2 stops10h 24m

$326

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Thu 1/22

1:24 pm-10:23 pm

1 stop5h 59m

Cincinnati Cinci./N. Kentucky

Tue 2/3

9:00 am-5:55 pm

2 stops11h 55m

$332

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Thu 1/8

5:05 am-4:43 pm

2 stops8h 38m

Cincinnati Cinci./N. Kentucky

Mon 1/12

3:29 pm-8:58 pm

1 stop8h 29m

$332

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

Showing 1-10 of 23 results

Compare providers for flights from Ontario to Cincinnati

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Cincinnati in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Cheapfaremart	Price 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Cincinnati flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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

Prices

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 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 $183). 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?

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

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

4,250 reviews

Reviews

1 / 20

10.0

Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Southwest

8.0

Very good

4,250 reviews

Southwest

8.0

Very good

4,250 reviews

Reviews

1 / 20

10.0

Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Delta

7.9

Good

8,011 reviews

Southwest

8.0

Very good

4,250 reviews

Reviews

1 / 20

10.0

Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

United Airlines

7.4

Good

9,066 reviews

Southwest

8.0

Very good

4,250 reviews

Reviews

1 / 20

10.0

Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

American Airlines

7.2

Good

11,047 reviews

Southwest

8.0

Very good

4,250 reviews

Reviews

1 / 20

10.0

Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Frontier

5.8

Fair

3,091 reviews

Southwest

8.0

Very good

4,250 reviews

Reviews

1 / 20

10.0

Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Related info for your journey

How long is the flight from Ontario to Cincinnati?
For as low as $231, Southwest can have you in Cincinnati from Ontario in 5h 40m. 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 $139. 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 66% 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 ($81), American Airlines ($111), and Delta ($151).
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 $183). 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

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Covington

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Fairfield

Blue Ash

Hebron

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Sparta

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Dry Ridge

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Top 5 airlines flying from Ontario to Cincinnati

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$139	Average$273	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$304	Average$491	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$304	Average$430	FlexibilityNo cancel fee	On-timeN/A
Southwest	Cheapest$312	Average$451	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$316	Average$421	FlexibilityNo cancel fee	On-time71%

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$74+ 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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Cincinnati with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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

Cheap flight deals from Ontario to Cincinnati

Cheapest flights from Ontario to CincinnatiExplore 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 December 4, 2025.

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 December 4, 2025.

Find flight deals from Ontario to Cincinnati

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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 December.

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.

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?

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

What is the cheapest time of day to fly from ONT to CVG?

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

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

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

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

Reviews of airlines servicing Cincinnati

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.

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?

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

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

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

How can I find direct flights from Ontario to Cincinnati?

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

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

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Alternative routes for Ontario to Cincinnati

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Top 5 airlines flying from Ontario to Cincinnati

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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 December 4, 2025.