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Cheap flights from Ontario to Cincinnati from $62

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 11/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
8:45 am - 10:08 pmONT-CVG
10h 23m1 stop
Frontier Logo
10:24 am - 9:27 pmCVG-ONT
14h 03m1 stop
$123Frontier
Find Deal
Wed, Nov 12 - Wed, Nov 19
Frontier Logo
12:05 pm - 11:59 pmONT-CVG
8h 54m1 stop
Frontier Logo
10:24 am - 9:29 pmCVG-ONT
14h 05m1 stop
$124Frontier
Find Deal
Sat, Nov 8 - Wed, Nov 12
Frontier Logo
12:05 pm - 11:59 pmONT-CVG
8h 54m1 stop
Frontier Logo
10:24 am - 9:29 pmCVG-ONT
14h 05m1 stop
$139Frontier
Find Deal
Sat, Nov 8 - Tue, Nov 11
Frontier Logo
4:05 pm - 1:39 amONT-CVG
6h 34m1 stop
Frontier Logo
3:47 pm - 11:50 pmCVG-ONT
11h 03m1 stop
$151Frontier
Find Deal
Mon, Nov 3 - Sat, Nov 8
Frontier Logo
8:45 am - 10:08 pmONT-CVG
10h 23m1 stop
Frontier Logo
10:24 am - 9:29 pmCVG-ONT
14h 05m1 stop
$154Frontier
Find Deal
Wed, Nov 5 - Wed, Nov 12
Frontier Logo
1:46 pm - 4:33 pmONT-CVG
23h 47m2 stops
Frontier Logo
10:24 am - 9:29 pmCVG-ONT
14h 05m1 stop
$155Frontier
Find Deal
Fri, Nov 7 - Wed, Nov 12
Frontier Logo
12:05 pm - 11:59 pmONT-CVG
8h 54m1 stop
Frontier Logo
12:52 pm - 6:27 amCVG-ONT
20h 35m2 stops
$156Frontier
Find Deal
Sat, Nov 8 - Wed, Nov 12
Frontier Logo
6:53 am - 12:48 amONT-CVG
14h 55m1 stop
Frontier Logo
1:27 pm - 11:50 pmCVG-ONT
13h 23m1 stop
$157Frontier
Find Deal
Wed, Oct 29 - Sat, Nov 1
Multiple Airlines Logo
12:05 pm - 11:59 pmONT-CVG
8h 54m1 stop
Multiple Airlines Logo
6:09 pm - 6:39 pmCVG-ONT
27h 30m2 stops
$182Multiple Airlines
Find Deal
Sat, Nov 8 - Sun, Nov 9
Multiple Airlines Logo
7:44 pm - 6:54 amONT-CVG
8h 10m1 stop
Multiple Airlines Logo
6:09 pm - 6:39 pmCVG-ONT
27h 30m2 stops
$215Multiple Airlines
Find Deal
Thu, Nov 6 - Sun, Nov 9

Frontier flights from Ontario to Cincinnati

Our best Frontier deals on Ontario to Cincinnati flight tickets
Frontier
Nov 12
ONT8:45 amOntario
10h 23m
1 stop
CVG10:08 pmCincinnati Cinci./N. Kentucky
Nov 19
CVG10:24 amCincinnati Cinci./N. Kentucky
14h 03m
1 stop
ONT9:27 pmOntario
$123
Find similar
Frontier
Nov 8
ONT12:05 pmOntario
8h 54m
1 stop
CVG11:59 pmCincinnati Cinci./N. Kentucky
Nov 12
CVG10:24 amCincinnati Cinci./N. Kentucky
14h 05m
1 stop
ONT9:29 pmOntario
$124
Find similar
Frontier
Nov 8
ONT12:05 pmOntario
8h 54m
1 stop
CVG11:59 pmCincinnati Cinci./N. Kentucky
Nov 11
CVG10:24 amCincinnati Cinci./N. Kentucky
14h 05m
1 stop
ONT9:29 pmOntario
$139
Find similar

United Airlines flights from Ontario to Cincinnati

Our best United Airlines deals on Ontario to Cincinnati flight tickets
United Airlines
Oct 29
ONT5:05 amOntario
14h 10m
1 stop
CVG10:15 pmCincinnati Cinci./N. Kentucky
Nov 2
CVG11:45 amCincinnati Cinci./N. Kentucky
13h 04m
1 stop
ONT9:49 pmOntario
$612
Find similar
United Airlines
Oct 27
ONT1:29 pmOntario
5h 46m
1 stop
CVG10:15 pmCincinnati Cinci./N. Kentucky
Oct 28
CVG8:00 amCincinnati Cinci./N. Kentucky
17h 51m
2 stops
ONT10:51 pmOntario
$635
Find similar
United Airlines
Oct 27
ONT6:38 pmOntario
16h 38m
2 stops
CVG2:16 pmCincinnati Cinci./N. Kentucky
Nov 3
CVG7:40 pmCincinnati Cinci./N. Kentucky
30h 11m
2 stops
ONT10:51 pmOntario
$735
Find similar

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 October 16, 2025.
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

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Wed 11/12

8:45 am-10:08 pm

1 stop10h 23m

Cincinnati Cinci./N. Kentucky

Wed 11/19

10:24 am-9:27 pm

1 stop14h 03m

$123

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Sat 11/8

12:05 pm-11:59 pm

1 stop8h 54m

Cincinnati Cinci./N. Kentucky

Wed 11/12

10:24 am-9:29 pm

1 stop14h 05m

$124

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Sat 11/8

12:05 pm-11:59 pm

1 stop8h 54m

Cincinnati Cinci./N. Kentucky

Tue 11/11

10:24 am-9:29 pm

1 stop14h 05m

$139

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Mon 11/3

4:05 pm-1:39 am

1 stop6h 34m

Cincinnati Cinci./N. Kentucky

Sat 11/8

3:47 pm-11:50 pm

1 stop11h 03m

$151

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Wed 11/5

8:45 am-10:08 pm

1 stop10h 23m

Cincinnati Cinci./N. Kentucky

Wed 11/12

10:24 am-9:29 pm

1 stop14h 05m

$154

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Fri 11/7

1:46 pm-4:33 pm

2 stops23h 47m

Cincinnati Cinci./N. Kentucky

Wed 11/12

10:24 am-9:29 pm

1 stop14h 05m

$155

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Sat 11/8

12:05 pm-11:59 pm

1 stop8h 54m

Cincinnati Cinci./N. Kentucky

Wed 11/12

12:52 pm-6:27 am

2 stops20h 35m

$156

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Wed 10/29

6:53 am-12:48 am

1 stop14h 55m

Cincinnati Cinci./N. Kentucky

Sat 11/1

1:27 pm-11:50 pm

1 stop13h 23m

$157

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Sat 11/8

12:05 pm-11:59 pm

1 stop8h 54m

Cincinnati Cinci./N. Kentucky

Sun 11/9

6:09 pm-6:39 pm

2 stops27h 30m

$182

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Thu 11/6

7:44 pm-6:54 am

1 stop8h 10m

Cincinnati Cinci./N. Kentucky

Sun 11/9

6:09 pm-6:39 pm

2 stops27h 30m

$215

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 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 $318. 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 $330.

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

According to our data, Thursday is the cheapest day to fly to Cincinnati from Ontario. The lowest ticket price found for a Thursday departure recently was $305. 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 $415.

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 $190. In the evening is when there is more demand to fly to Cincinnati, so prices are often more expensive at around $407 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 $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 $184 on momondo.

How have Ontario to Cincinnati flight prices changed over time?

As of October 2025, prices for Ontario to Cincinnati flights are approximately 33% cheaper 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

Direct flights

None
There are no direct flights from Ontario to Cincinnati. There are no popular flight routes from Ontario to Cincinnati.
Search flight deals

  • 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 6h 19m.

  • 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 $157Free CancellationRating
5.8
3,137 reviews
Search Frontier flights
United AirlinesPriceFrom $304Free CancellationRating
7.4
8,982 reviews
Search United Airlines flights
DeltaPriceFrom $304Free CancellationRating
7.9
7,984 reviews
Search Delta flights
SouthwestPriceFrom $312Free CancellationRating
8.0
4,241 reviews
Search Southwest flights
American AirlinesPriceFrom $316Free CancellationRating
7.2
11,043 reviews
Search American Airlines 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
Blue Ash
West Chester
Fairfield
Oxford
Dry Ridge
Monroe
Edgewood
Hebron
Corinth
Bethel
Ghent
Sparta

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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