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Cheap flights from Ontario to Cincinnati from $82

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 5/8. 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

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Find the cheapest flights from Ontario to Cincinnati

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
12:59 am - 7:12 pm
ONT
-
CVG
15h 13m
1 stop
Frontier Logo
9:29 pm - 11:49 pm
CVG
-
ONT
29h 20m
1 stop
$171Frontier
Thu, Apr 30 - Mon, May 4
Frontier Logo
12:59 am - 7:12 pm
ONT
-
CVG
15h 13m
1 stop
Frontier Logo
8:40 pm - 7:49 am
CVG
-
ONT
14h 09m
1 stop
$172Frontier
Thu, Apr 30 - Sun, May 10
Frontier Logo
11:47 am - 5:53 am
ONT
-
CVG
15h 06m
1 stop
Frontier Logo
12:15 pm - 10:05 am
CVG
-
ONT
24h 50m
1 stop
$180Frontier
Thu, Apr 23 - Tue, May 5
Frontier Logo
12:59 am - 7:12 pm
ONT
-
CVG
15h 13m
1 stop
Frontier Logo
8:40 pm - 7:49 am
CVG
-
ONT
14h 09m
1 stop
$187Frontier
Thu, Apr 30 - Thu, May 7
Frontier Logo
12:59 am - 7:12 pm
ONT
-
CVG
15h 13m
1 stop
Frontier Logo
8:38 pm - 10:44 am
CVG
-
ONT
17h 06m
1 stop
$191Frontier
Thu, Apr 23 - Mon, Apr 27
Frontier Logo
12:59 am - 7:12 pm
ONT
-
CVG
15h 13m
1 stop
Frontier Logo
8:38 pm - 3:44 pm
CVG
-
ONT
22h 06m
1 stop
$196Frontier
Thu, Apr 30 - Mon, May 4
Frontier Logo
12:59 am - 8:24 pm
ONT
-
CVG
16h 25m
1 stop
Frontier Logo
8:40 pm - 3:09 pm
CVG
-
ONT
21h 29m
1 stop
$198Frontier
Sun, May 3 - Fri, May 8
Frontier Logo
7:49 pm - 5:53 am
ONT
-
CVG
7h 04m
1 stop
Frontier Logo
8:38 pm - 10:14 am
CVG
-
ONT
16h 36m
1 stop
$205Frontier
Thu, Apr 16 - Sun, Apr 19
Frontier Logo
3:30 pm - 7:35 pm
ONT
-
CVG
25h 05m
1 stop
Frontier Logo
8:40 pm - 7:32 pm
CVG
-
ONT
25h 52m
1 stop
$210Frontier
Thu, Jun 4 - Sun, Jun 7
Frontier Logo
12:59 am - 7:12 pm
ONT
-
CVG
15h 13m
1 stop
Frontier Logo
8:38 pm - 10:14 am
CVG
-
ONT
16h 36m
1 stop
$211Frontier
Thu, Apr 16 - Sun, Apr 19

Frontier flights from Ontario to Cincinnati

Our best Frontier deals on Ontario to Cincinnati flight tickets
Frontier
Apr 30
ONT12:59 amOntario
15h 13m
1 stop
CVG7:12 pmCincinnati Cinci./N. Kentucky
May 4
CVG9:29 pmCincinnati Cinci./N. Kentucky
29h 20m
1 stop
ONT11:49 pmOntario
$171
Frontier
Apr 30
ONT12:59 amOntario
15h 13m
1 stop
CVG7:12 pmCincinnati Cinci./N. Kentucky
May 10
CVG8:40 pmCincinnati Cinci./N. Kentucky
14h 09m
1 stop
ONT7:49 amOntario
$172
Frontier
Apr 23
ONT11:47 amOntario
15h 06m
1 stop
CVG5:53 amCincinnati Cinci./N. Kentucky
May 5
CVG12:15 pmCincinnati Cinci./N. Kentucky
24h 50m
1 stop
ONT10:05 amOntario
$180

Southwest flights from Ontario to Cincinnati

Our best Southwest deals on Ontario to Cincinnati flight tickets
Southwest
Apr 16
ONT8:10 amOntario
8h 30m
2 stops
CVG7:40 pmCincinnati Cinci./N. Kentucky
Apr 20
CVG6:35 amCincinnati Cinci./N. Kentucky
9h 35m
2 stops
ONT1:10 pmOntario
$617
Southwest
Apr 19
ONT9:45 amOntario
10h 25m
2 stops
CVG11:10 pmCincinnati Cinci./N. Kentucky
May 2
CVG2:35 pmCincinnati Cinci./N. Kentucky
8h 40m
2 stops
ONT8:15 pmOntario
$622

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 April 6, 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

Thu 4/30

12:59 am-7:12 pm

1 stop15h 13m

Cincinnati Cinci./N. Kentucky

Mon 5/4

9:29 pm-11:49 pm

1 stop29h 20m

$171

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Thu 4/30

12:59 am-7:12 pm

1 stop15h 13m

Cincinnati Cinci./N. Kentucky

Sun 5/10

8:40 pm-7:49 am

1 stop14h 09m

$172

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Thu 4/23

11:47 am-5:53 am

1 stop15h 06m

Cincinnati Cinci./N. Kentucky

Tue 5/5

12:15 pm-10:05 am

1 stop24h 50m

$180

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Thu 4/30

12:59 am-7:12 pm

1 stop15h 13m

Cincinnati Cinci./N. Kentucky

Thu 5/7

8:40 pm-7:49 am

1 stop14h 09m

$187

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Thu 4/23

12:59 am-7:12 pm

1 stop15h 13m

Cincinnati Cinci./N. Kentucky

Mon 4/27

8:38 pm-10:44 am

1 stop17h 06m

$191

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Thu 4/30

12:59 am-7:12 pm

1 stop15h 13m

Cincinnati Cinci./N. Kentucky

Mon 5/4

8:38 pm-3:44 pm

1 stop22h 06m

$196

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Sun 5/3

12:59 am-8:24 pm

1 stop16h 25m

Cincinnati Cinci./N. Kentucky

Fri 5/8

8:40 pm-3:09 pm

1 stop21h 29m

$198
Quickest round-trip

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Thu 4/16

7:49 pm-5:53 am

1 stop7h 04m

Cincinnati Cinci./N. Kentucky

Sun 4/19

8:38 pm-10:14 am

1 stop16h 36m

$205

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Thu 6/4

3:30 pm-7:35 pm

1 stop25h 05m

Cincinnati Cinci./N. Kentucky

Sun 6/7

8:40 pm-7:32 pm

1 stop25h 52m

$210

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Thu 4/16

12:59 am-7:12 pm

1 stop15h 13m

Cincinnati Cinci./N. Kentucky

Sun 4/19

8:38 pm-10:14 am

1 stop16h 36m

$211

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 October is, on average, the cheapest month to fly to Cincinnati from Ontario, with most prices found around $325. If you aren’t able to travel to Cincinnati during the month of October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $327.

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

According to our data, Sunday is the cheapest day to fly to Cincinnati from Ontario. The lowest ticket price found for a Sunday departure recently was $302. 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, Wednesday 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 $428.

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 $186. 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 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 $422 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 $281 on momondo.

How have Ontario to Cincinnati flight prices changed over time?

As of April 2026, prices for Ontario to Cincinnati flights are approximately 49% 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 54m

Direct flights

None
The fastest flight from Ontario to Cincinnati takes 5h 54m
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 54m.

  • 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
5.7
3,002 reviews
Search Frontier flights
DeltaPriceFrom $297Free CancellationRating
7.9
8,387 reviews
Search Delta flights
American AirlinesPriceFrom $299Free CancellationRating
7.1
11,557 reviews
Search American Airlines flights
United AirlinesPriceFrom $304Free CancellationRating
7.4
9,546 reviews
Search United Airlines flights
SouthwestPriceFrom $312Free CancellationRating
8.0
4,340 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
Williamstown
Middletown
Lawrenceburg
Blue Ash
West Chester
Fairfield
Oxford
Dry Ridge
Monroe
Hebron
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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