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Cheap flights from Ontario to Cincinnati from $111

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
11:45 am - 11:38 amONT  Ontario-CVG Cincinnati Cinci./N. Kentucky
20h 53m2 stops Denver Intl Atlanta Hartsfield-Jackson
Frontier Logo
5:16 pm - 11:47 pmCVG  Cincinnati Cinci./N. Kentucky-ONT Ontario
9h 31m1 stop Denver Intl
$206Frontier
Tue, Sep 15 - Sat, Sep 19
Frontier Logo
11:45 am - 11:38 amONT  Ontario-CVG Cincinnati Cinci./N. Kentucky
20h 53m2 stops Denver Intl Atlanta Hartsfield-Jackson
Frontier Logo
5:16 pm - 11:47 pmCVG  Cincinnati Cinci./N. Kentucky-ONT Ontario
9h 31m1 stop Denver Intl
$206Frontier
Tue, Sep 15 - Wed, Sep 16
Multiple Airlines Logo
6:15 am - 4:11 pmONT  Ontario-CVG Cincinnati Cinci./N. Kentucky
6h 56m1 stop Denver Intl
Multiple Airlines Logo
9:36 am - 7:36 pmCVG  Cincinnati Cinci./N. Kentucky-ONT Ontario
13h 00m1 stop San Francisco
$282Multiple Airlines
Wed, Sep 16 - Thu, Sep 17
Multiple Airlines Logo
6:15 am - 4:11 pmONT  Ontario-CVG Cincinnati Cinci./N. Kentucky
6h 56m1 stop Denver Intl
Multiple Airlines Logo
9:36 am - 7:36 pmCVG  Cincinnati Cinci./N. Kentucky-ONT Ontario
13h 00m1 stop San Francisco
$304Multiple Airlines
Tue, Sep 15 - Thu, Sep 17
Delta Logo
1:04 pm - 10:52 pmONT  Ontario-CVG Cincinnati Cinci./N. Kentucky
6h 48m1 stop Salt Lake City
Delta Logo
7:26 am - 12:14 pmCVG  Cincinnati Cinci./N. Kentucky-ONT Ontario
7h 48m1 stop Salt Lake City
$357Delta
Wed, Sep 9 - Sat, Sep 12
Delta Logo
6:00 am - 2:49 pmONT  Ontario-CVG Cincinnati Cinci./N. Kentucky
5h 49m1 stop Salt Lake City
Delta Logo
6:00 am - 10:42 amCVG  Cincinnati Cinci./N. Kentucky-ONT Ontario
7h 42m1 stop Atlanta Hartsfield-Jackson
$357Delta
Sat, Sep 5 - Sun, Sep 6
American Airlines Logo
1:04 pm - 12:41 amONT  Ontario-CVG Cincinnati Cinci./N. Kentucky
8h 37m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl
American Airlines Logo
6:00 am - 11:47 amCVG  Cincinnati Cinci./N. Kentucky-ONT Ontario
8h 47m1 stop Dallas/Fort Worth
$362American Airlines
Fri, Sep 11 - Tue, Sep 15
American Airlines Logo
6:15 am - 6:22 pmONT  Ontario-CVG Cincinnati Cinci./N. Kentucky
9h 07m2 stops Phoenix Sky Harbor Intl Dallas/Fort Worth
American Airlines Logo
6:00 am - 11:47 amCVG  Cincinnati Cinci./N. Kentucky-ONT Ontario
8h 47m1 stop Dallas/Fort Worth
$362American Airlines
Sat, Sep 19 - Sat, Sep 26
United Airlines Logo
7:00 am - 4:55 pmONT  Ontario-CVG Cincinnati Cinci./N. Kentucky
6h 55m1 stop Chicago O'Hare Intl
United Airlines Logo
2:05 pm - 9:59 pmCVG  Cincinnati Cinci./N. Kentucky-ONT Ontario
10h 54m2 stops Chicago O'Hare Intl Houston George Bush Intcntl
$362United Airlines
Sun, Sep 6 - Thu, Sep 10
United Airlines Logo
5:00 am - 4:55 pmONT  Ontario-CVG Cincinnati Cinci./N. Kentucky
8h 55m2 stops Denver Intl Chicago O'Hare Intl
United Airlines Logo
2:05 pm - 8:53 pmCVG  Cincinnati Cinci./N. Kentucky-ONT Ontario
9h 48m2 stops Chicago O'Hare Intl Denver Intl
$383United Airlines
Sun, Sep 6 - Thu, Sep 10

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Frontier flights from Ontario to Cincinnati

Our best Frontier deals on Ontario to Cincinnati flight tickets
Frontier
Sep 15
ONT11:45 amOntario
20h 53m
2 stops
CVG11:38 amCincinnati Cinci./N. Kentucky
Sep 19
CVG5:16 pmCincinnati Cinci./N. Kentucky
9h 31m
1 stop
ONT11:47 pmOntario
$206
Frontier
Sep 19
ONT6:15 amOntario
6h 56m
1 stop
CVG4:11 pmCincinnati Cinci./N. Kentucky
Sep 26
CVG5:16 pmCincinnati Cinci./N. Kentucky
9h 31m
1 stop
ONT11:47 pmOntario
$208
Frontier
Sep 16
ONT6:15 amOntario
6h 56m
1 stop
CVG4:11 pmCincinnati Cinci./N. Kentucky
Sep 19
CVG5:16 pmCincinnati Cinci./N. Kentucky
9h 31m
1 stop
ONT11:47 pmOntario
$213

Delta flights from Ontario to Cincinnati

Our best Delta deals on Ontario to Cincinnati flight tickets
Delta
Sep 5
ONT6:00 amOntario
5h 49m
1 stop
CVG2:49 pmCincinnati Cinci./N. Kentucky
Sep 6
CVG6:00 amCincinnati Cinci./N. Kentucky
7h 42m
1 stop
ONT10:42 amOntario
$357
Delta
Sep 5
ONT12:00 pmOntario
9h 06m
1 stop
CVG12:06 amCincinnati Cinci./N. Kentucky
Sep 8
CVG1:30 pmCincinnati Cinci./N. Kentucky
9h 54m
1 stop
ONT8:24 pmOntario
$487
Delta
Sep 7
ONT12:00 pmOntario
9h 25m
1 stop
CVG12:25 amCincinnati Cinci./N. Kentucky
Sep 11
CVG6:00 amCincinnati Cinci./N. Kentucky
8h 05m
1 stop
ONT11:05 amOntario
$488

momondo Fare Finder

 
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 Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Tue 9/15

11:45 am-11:38 am

2 stops20h 53m

Cincinnati Cinci./N. Kentucky

Sat 9/19

5:16 pm-11:47 pm

1 stop9h 31m

$206

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Tue 9/15

11:45 am-11:38 am

2 stops20h 53m

Cincinnati Cinci./N. Kentucky

Wed 9/16

5:16 pm-11:47 pm

1 stop9h 31m

$206

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Wed 9/16

6:15 am-4:11 pm

1 stop6h 56m

Cincinnati Cinci./N. Kentucky

Thu 9/17

9:36 am-7:36 pm

1 stop13h 00m

$282

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Tue 9/15

6:15 am-4:11 pm

1 stop6h 56m

Cincinnati Cinci./N. Kentucky

Thu 9/17

9:36 am-7:36 pm

1 stop13h 00m

$304

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Wed 9/9

1:04 pm-10:52 pm

1 stop6h 48m

Cincinnati Cinci./N. Kentucky

Sat 9/12

7:26 am-12:14 pm

1 stop7h 48m

$357
Quickest round-trip

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Sat 9/5

6:00 am-2:49 pm

1 stop5h 49m

Cincinnati Cinci./N. Kentucky

Sun 9/6

6:00 am-10:42 am

1 stop7h 42m

$357

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Fri 9/11

1:04 pm-12:41 am

2 stops8h 37m

Cincinnati Cinci./N. Kentucky

Tue 9/15

6:00 am-11:47 am

1 stop8h 47m

$362

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Sat 9/19

6:15 am-6:22 pm

2 stops9h 07m

Cincinnati Cinci./N. Kentucky

Sat 9/26

6:00 am-11:47 am

1 stop8h 47m

$362

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Sun 9/6

7:00 am-4:55 pm

1 stop6h 55m

Cincinnati Cinci./N. Kentucky

Thu 9/10

2:05 pm-9:59 pm

2 stops10h 54m

$362

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Sun 9/6

5:00 am-4:55 pm

2 stops8h 55m

Cincinnati Cinci./N. Kentucky

Thu 9/10

2:05 pm-8:53 pm

2 stops9h 48m

$383

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?

Prices are currently low for flights on this route.

Typical prices usually range from $306 to $422.
The lowest price recently found on this route was $206.

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 $345. If you aren’t able to travel to Cincinnati during the month of October, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $360.

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 $388. 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 $539.

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 in the afternoon. Flights from Ontario to Cincinnati during this time can be as low as $368. In the evening is when there is more demand to fly to Cincinnati, so prices are often more expensive at around $478 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 $430 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 $252 on momondo.

How have Ontario to Cincinnati flight prices changed over time?

As of August 2026, prices for Ontario to Cincinnati flights are approximately 32% 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

Best Price Found

$111

Fastest flight time

5h 57m

Direct flights

None
The best one-way flight to Cincinnati from Ontario in the past 72 hours is $111. The best round-trip flight deal from Ontario to Cincinnati found on momondo in the last 72 hours is $206.
The fastest flight from Ontario to Cincinnati takes 5h 57m
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 57m.

  • 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
2,652 reviews
Search Frontier flights
American AirlinesPriceFrom $299Free CancellationRating
7.1
11,984 reviews
Search American Airlines flights
DeltaPriceFrom $303Free CancellationRating
7.8
8,517 reviews
Search Delta flights
United AirlinesPriceFrom $304Free CancellationRating
7.4
10,115 reviews
Search United Airlines flights
SouthwestPriceFrom $312Free CancellationRating
8.0
4,209 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
Sharonville
Newport
Covington
Middletown
West Chester
Fairfield
Williamstown
Blue Ash
Lawrenceburg
Oxford
Hebron
Monroe
Dry Ridge
Trenton
Corinth
Bethel
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.

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