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Cheap flights from Ontario to Cincinnati from $132

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Cincinnati departing on 8/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Cincinnati

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
5:08 pm - 8:22 pm
ONT
-
CVG
24h 14m
1 stop
Frontier Logo
7:52 pm - 8:41 am
CVG
-
ONT
15h 49m
1 stop
$259Frontier
Wed, Aug 5 - Mon, Aug 10
Frontier Logo
3:40 pm - 8:25 pm
ONT
-
CVG
25h 45m
1 stop
Frontier Logo
12:26 pm - 7:32 am
CVG
-
ONT
22h 06m
2 stops
$269Frontier
Wed, Aug 26 - Wed, Sep 2
Frontier Logo
5:08 pm - 8:22 pm
ONT
-
CVG
24h 14m
1 stop
Frontier Logo
9:27 pm - 8:03 am
CVG
-
ONT
13h 36m
1 stop
$270Frontier
Wed, Aug 5 - Mon, Aug 10
Multiple Airlines Logo
5:08 pm - 3:56 pm
ONT
-
CVG
19h 48m
1 stop
Multiple Airlines Logo
12:53 pm - 7:32 am
CVG
-
ONT
21h 39m
2 stops
$273Multiple Airlines
Wed, Aug 5 - Mon, Aug 10
Frontier Logo
6:00 am - 11:13 am
ONT
-
CVG
26h 13m
2 stops
Frontier Logo
9:27 pm - 8:03 am
CVG
-
ONT
13h 36m
1 stop
$274Frontier
Wed, Aug 5 - Mon, Aug 10
Frontier Logo
8:17 am - 11:21 am
ONT
-
CVG
24h 04m
2 stops
Frontier Logo
9:20 pm - 3:54 pm
CVG
-
ONT
21h 34m
1 stop
$278Frontier
Thu, Aug 20 - Tue, Aug 25
Frontier Logo
3:40 pm - 8:15 pm
ONT
-
CVG
25h 35m
1 stop
Frontier Logo
9:20 pm - 8:03 am
CVG
-
ONT
13h 43m
1 stop
$280Frontier
Thu, Aug 20 - Sun, Aug 23
Multiple Airlines Logo
11:16 am - 11:37 pm
ONT
-
CVG
9h 21m
1 stop
Multiple Airlines Logo
9:30 pm - 4:10 pm
CVG
-
ONT
21h 40m
2 stops
$286Multiple Airlines
Thu, Sep 24 - Mon, Sep 28
Frontier Logo
6:00 am - 7:29 pm
ONT
-
CVG
10h 29m
1 stop
Frontier Logo
8:34 pm - 11:50 pm
CVG
-
ONT
6h 16m
1 stop
$290Frontier
Wed, Aug 5 - Tue, Aug 11
Multiple Airlines Logo
9:33 am - 11:21 am
ONT
-
CVG
22h 48m
2 stops
Multiple Airlines Logo
6:00 am - 8:03 am
CVG
-
ONT
29h 03m
1 stop
$294Multiple Airlines
Thu, Aug 20 - Sun, Aug 23

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Delta flights from Ontario to Cincinnati

Our best Delta deals on Ontario to Cincinnati flight tickets
Delta
Aug 18
ONT7:05 amOntario
6h 37m
1 stop
CVG4:42 pmCincinnati Cinci./N. Kentucky
Aug 19
CVG7:29 pmCincinnati Cinci./N. Kentucky
7h 05m
1 stop
ONT11:34 pmOntario
$303
Delta
Aug 17
ONT10:00 pmOntario
7h 56m
1 stop
CVG8:56 amCincinnati Cinci./N. Kentucky
Aug 22
CVG7:55 amCincinnati Cinci./N. Kentucky
7h 21m
1 stop
ONT12:16 pmOntario
$361
Delta
Jul 27
ONT10:00 pmOntario
7h 56m
1 stop
CVG8:56 amCincinnati Cinci./N. Kentucky
Jul 30
CVG7:09 amCincinnati Cinci./N. Kentucky
6h 29m
1 stop
ONT10:38 amOntario
$607

Frontier flights from Ontario to Cincinnati

Our best Frontier deals on Ontario to Cincinnati flight tickets
Frontier
Aug 5
ONT5:08 pmOntario
24h 14m
1 stop
CVG8:22 pmCincinnati Cinci./N. Kentucky
Aug 10
CVG7:52 pmCincinnati Cinci./N. Kentucky
15h 49m
1 stop
ONT8:41 amOntario
$259
Frontier
Aug 26
ONT3:40 pmOntario
25h 45m
1 stop
CVG8:25 pmCincinnati Cinci./N. Kentucky
Sep 2
CVG12:26 pmCincinnati Cinci./N. Kentucky
22h 06m
2 stops
ONT7:32 amOntario
$269
Frontier
Aug 5
ONT5:08 pmOntario
24h 14m
1 stop
CVG8:22 pmCincinnati Cinci./N. Kentucky
Aug 10
CVG9:27 pmCincinnati Cinci./N. Kentucky
13h 36m
1 stop
ONT8:03 amOntario
$270

momondo 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, momondo users made 832,500 searches. Data last updated July 13, 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

Wed 8/5

5:08 pm-8:22 pm

1 stop24h 14m

Cincinnati Cinci./N. Kentucky

Mon 8/10

7:52 pm-8:41 am

1 stop15h 49m

$259

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Wed 8/26

3:40 pm-8:25 pm

1 stop25h 45m

Cincinnati Cinci./N. Kentucky

Wed 9/2

12:26 pm-7:32 am

2 stops22h 06m

$269

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Wed 8/5

5:08 pm-8:22 pm

1 stop24h 14m

Cincinnati Cinci./N. Kentucky

Mon 8/10

9:27 pm-8:03 am

1 stop13h 36m

$270

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Wed 8/5

5:08 pm-3:56 pm

1 stop19h 48m

Cincinnati Cinci./N. Kentucky

Mon 8/10

12:53 pm-7:32 am

2 stops21h 39m

$273

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Wed 8/5

6:00 am-11:13 am

2 stops26h 13m

Cincinnati Cinci./N. Kentucky

Mon 8/10

9:27 pm-8:03 am

1 stop13h 36m

$274

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Thu 8/20

8:17 am-11:21 am

2 stops24h 04m

Cincinnati Cinci./N. Kentucky

Tue 8/25

9:20 pm-3:54 pm

1 stop21h 34m

$278

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Thu 8/20

3:40 pm-8:15 pm

1 stop25h 35m

Cincinnati Cinci./N. Kentucky

Sun 8/23

9:20 pm-8:03 am

1 stop13h 43m

$280

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Thu 9/24

11:16 am-11:37 pm

1 stop9h 21m

Cincinnati Cinci./N. Kentucky

Mon 9/28

9:30 pm-4:10 pm

2 stops21h 40m

$286
Quickest round-trip

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Wed 8/5

6:00 am-7:29 pm

1 stop10h 29m

Cincinnati Cinci./N. Kentucky

Tue 8/11

8:34 pm-11:50 pm

1 stop6h 16m

$290

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Thu 8/20

9:33 am-11:21 am

2 stops22h 48m

Cincinnati Cinci./N. Kentucky

Sun 8/23

6:00 am-8:03 am

1 stop29h 03m

$294

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Cincinnati from

How to get the cheapest flight ticket from Ontario to Cincinnati

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Ontario and Cincinnati?

What is the cheapest month to fly to Cincinnati?

The month of September is, on average, the cheapest month to fly to Cincinnati from Ontario, with most prices found around $326. If you aren’t able to travel to Cincinnati during the month of September, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $335.

What is the cheapest day to depart on your flight to Cincinnati?

According to our data, Tuesday is the cheapest day to fly to Cincinnati from Ontario. The lowest ticket price found for a Tuesday departure recently was $369. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Sunday is the most expensive day to depart from Ontario because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $515.

What is the cheapest time of day to depart on your flight to Cincinnati?

Our most recent data shows that the best time of day to fly to Cincinnati is at noon. Flights from Ontario to Cincinnati during this time can be as low as $332. In the morning is when there is more demand to fly to Cincinnati, so prices are often more expensive at around $472 per ticket.

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

You are more likely to see cheaper flights to Cincinnati from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Cincinnati for around $416 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Cincinnati from Ontario for as low as $310 on momondo.

How have Ontario to Cincinnati flight prices changed over time?

As of July 2026, prices for Ontario to Cincinnati flights are approximately 40% more expensive when compared to flights at the same time last year.

When to book flights from Ontario to Cincinnati

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Cincinnati according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Cincinnati (ONT to CVG) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Cincinnati

Fastest flight time

5h 46m

Direct flights

None
The fastest flight from Ontario to Cincinnati takes 5h 46m
There are no direct flights from Ontario to Cincinnati. There are no popular flight routes from Ontario to Cincinnati.
Search flight deals

Frequently asked questions about flying from Ontario to Cincinnati

  • How far is Ontario to Cincinnati Cinci./N. Kentucky by plane?

    The straight-line distance from Ontario to Cincinnati Cinci./N. Kentucky is 1859.2 mi. A reasonable flight in good conditions will take 5h 46m.

  • When did momondo last update prices for flights from Ontario Airport to Cincinnati Cinci./N. Kentucky Airport?

    Prices for flights from Ontario Airport to Cincinnati Cinci./N. Kentucky Airport were last updated today.

  • How many operators does momondo search for flights from Ontario Airport to Cincinnati Cinci./N. Kentucky Airport?

  • How old do you have to be to fly from Ontario Airport to Cincinnati Cinci./N. Kentucky Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Cincinnati Cinci./N. Kentucky Airport.

  • What documentation or ID do you need to fly to Cincinnati Cinci./N. Kentucky Airport?

    The travel and health documents required for your trip to Cincinnati Cinci./N. Kentucky Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Cincinnati Cinci./N. Kentucky Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Ontario to Cincinnati?

Best airlines flying from Ontario to Cincinnati

Compare and see reviews for airlines that fly from Ontario to Cincinnati with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $150Free CancellationRating
5.6
2,816 reviews
Search Frontier flights
American AirlinesPriceFrom $299Free CancellationRating
7.1
11,811 reviews
Search American Airlines flights
DeltaPriceFrom $303Free CancellationRating
7.8
8,462 reviews
Search Delta flights
United AirlinesPriceFrom $304Free CancellationRating
7.4
9,983 reviews
Search United Airlines flights
SouthwestPriceFrom $312Free CancellationRating
8.0
4,249 reviews
Search Southwest flights

Traveling to a place near Cincinnati?

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

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Cincinnati?

Finding the right flight to Cincinnati from Ontario is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Cincinnati quick and easy, saving you time and money.

Can I find flights from Ontario to Cincinnati with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Cincinnati from Ontario with this policy.

How can momondo help me find flights from Ontario to Cincinnati?

momondo helps you find the best flight between Ontario and Cincinnati by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ontario to Cincinnati right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ontario to Cincinnati now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Cincinnati and let you know when they change.

An easier way to manage your Cincinnati trip

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