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Cheap flights from Ontario to Cincinnati from $91

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
11:30 am - 5:57 pmONT  Ontario-CVG Cincinnati Cinci./N. Kentucky
27h 27m1 stop Denver Intl
Frontier Logo
7:02 pm - 10:45 amCVG  Cincinnati Cinci./N. Kentucky-ONT Ontario
18h 43m1 stop Denver Intl
$182Frontier
Thu, Dec 3 - Mon, Dec 7
Frontier Logo
11:30 am - 5:57 pmONT  Ontario-CVG Cincinnati Cinci./N. Kentucky
27h 27m1 stop Denver Intl
Frontier Logo
7:02 pm - 10:17 pmCVG  Cincinnati Cinci./N. Kentucky-ONT Ontario
6h 15m1 stop Denver Intl
$190Frontier
Thu, Dec 3 - Wed, Dec 9
Multiple Airlines Logo
8:00 am - 4:12 pmONT  Ontario-CVG Cincinnati Cinci./N. Kentucky
29h 12m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
9:13 am - 10:17 pmCVG  Cincinnati Cinci./N. Kentucky-ONT Ontario
16h 04m2 stops Atlanta Hartsfield-Jackson Denver Intl
$200Multiple Airlines
Wed, Dec 2 - Tue, Dec 8
Multiple Airlines Logo
2:00 pm - 4:12 pmONT  Ontario-CVG Cincinnati Cinci./N. Kentucky
23h 12m1 stop Las Vegas Harry Reid Intl
Multiple Airlines Logo
9:36 am - 11:23 pmCVG  Cincinnati Cinci./N. Kentucky-ONT Ontario
16h 47m1 stop San Francisco
$227Multiple Airlines
Wed, Dec 2 - Tue, Dec 8
American Airlines Logo
11:59 pm - 10:49 amONT  Ontario-CVG Cincinnati Cinci./N. Kentucky
7h 50m1 stop Dallas/Fort Worth
American Airlines Logo
7:14 pm - 11:59 pmCVG  Cincinnati Cinci./N. Kentucky-ONT Ontario
7h 45m1 stop Dallas/Fort Worth
$329American Airlines
Tue, Nov 24 - Tue, Dec 1
American Airlines Logo
2:09 pm - 11:27 pmONT  Ontario-CVG Cincinnati Cinci./N. Kentucky
6h 18m1 stop Dallas/Fort Worth
American Airlines Logo
3:22 pm - 9:38 pmCVG  Cincinnati Cinci./N. Kentucky-ONT Ontario
9h 16m1 stop Dallas/Fort Worth
$336American Airlines
Wed, Nov 25 - Thu, Dec 3
Delta Logo
12:18 pm - 12:37 amONT  Ontario-CVG Cincinnati Cinci./N. Kentucky
9h 19m1 stop Atlanta Hartsfield-Jackson
Delta Logo
3:00 pm - 8:58 pmCVG  Cincinnati Cinci./N. Kentucky-ONT Ontario
8h 58m1 stop Atlanta Hartsfield-Jackson
$385Delta
Tue, Nov 24 - Tue, Dec 1
Delta Logo
12:18 pm - 12:37 amONT  Ontario-CVG Cincinnati Cinci./N. Kentucky
9h 19m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:35 pm - 11:57 pmCVG  Cincinnati Cinci./N. Kentucky-ONT Ontario
7h 22m1 stop Salt Lake City
$385Delta
Tue, Nov 24 - Tue, Dec 1
Southwest Logo
11:25 am - 9:25 pmONT  Ontario-CVG Cincinnati Cinci./N. Kentucky
7h 00m1 stop Nashville Intl
Southwest Logo
6:35 pm - 11:55 pmCVG  Cincinnati Cinci./N. Kentucky-ONT Ontario
8h 20m2 stops Nashville Intl Las Vegas Harry Reid Intl
$463Southwest
Fri, Dec 25 - Tue, Dec 29
Southwest Logo
10:05 am - 6:50 pmONT  Ontario-CVG Cincinnati Cinci./N. Kentucky
5h 45m1 stop Denver Intl
Southwest Logo
6:35 pm - 10:00 pmCVG  Cincinnati Cinci./N. Kentucky-ONT Ontario
6h 25m1 stop Nashville Intl
$464Southwest
Fri, Dec 25 - Tue, Dec 29

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Frontier flights from Ontario to Cincinnati

Our best Frontier deals on Ontario to Cincinnati flight tickets
Frontier
Dec 3
ONT11:30 amOntario
27h 27m
1 stop
CVG5:57 pmCincinnati Cinci./N. Kentucky
Dec 7
CVG7:02 pmCincinnati Cinci./N. Kentucky
18h 43m
1 stop
ONT10:45 amOntario
$182
Frontier
Dec 3
ONT11:30 amOntario
27h 27m
1 stop
CVG5:57 pmCincinnati Cinci./N. Kentucky
Dec 9
CVG7:02 pmCincinnati Cinci./N. Kentucky
6h 15m
1 stop
ONT10:17 pmOntario
$190
Frontier
Dec 9
ONT6:00 amOntario
8h 59m
1 stop
CVG5:59 pmCincinnati Cinci./N. Kentucky
Dec 15
CVG9:13 amCincinnati Cinci./N. Kentucky
16h 04m
2 stops
ONT10:17 pmOntario
$205

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

Thu 12/3

11:30 am-5:57 pm

1 stop27h 27m

Cincinnati Cinci./N. Kentucky

Mon 12/7

7:02 pm-10:45 am

1 stop18h 43m

$182

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Thu 12/3

11:30 am-5:57 pm

1 stop27h 27m

Cincinnati Cinci./N. Kentucky

Wed 12/9

7:02 pm-10:17 pm

1 stop6h 15m

$190

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Wed 12/2

8:00 am-4:12 pm

1 stop29h 12m

Cincinnati Cinci./N. Kentucky

Tue 12/8

9:13 am-10:17 pm

2 stops16h 04m

$200

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Wed 12/2

2:00 pm-4:12 pm

1 stop23h 12m

Cincinnati Cinci./N. Kentucky

Tue 12/8

9:36 am-11:23 pm

1 stop16h 47m

$227

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Tue 11/24

11:59 pm-10:49 am

1 stop7h 50m

Cincinnati Cinci./N. Kentucky

Tue 12/1

7:14 pm-11:59 pm

1 stop7h 45m

$329

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Wed 11/25

2:09 pm-11:27 pm

1 stop6h 18m

Cincinnati Cinci./N. Kentucky

Thu 12/3

3:22 pm-9:38 pm

1 stop9h 16m

$336

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Tue 11/24

12:18 pm-12:37 am

1 stop9h 19m

Cincinnati Cinci./N. Kentucky

Tue 12/1

3:00 pm-8:58 pm

1 stop8h 58m

$385

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Tue 11/24

12:18 pm-12:37 am

1 stop9h 19m

Cincinnati Cinci./N. Kentucky

Tue 12/1

7:35 pm-11:57 pm

1 stop7h 22m

$385

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Fri 12/25

11:25 am-9:25 pm

1 stop7h 00m

Cincinnati Cinci./N. Kentucky

Tue 12/29

6:35 pm-11:55 pm

2 stops8h 20m

$463
Quickest round-trip

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Fri 12/25

10:05 am-6:50 pm

1 stop5h 45m

Cincinnati Cinci./N. Kentucky

Tue 12/29

6:35 pm-10:00 pm

1 stop6h 25m

$464

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 March is, on average, the cheapest month to fly to Cincinnati from Ontario, with most prices found around $360. If you aren’t able to travel to Cincinnati during the month of March, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $401.

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 $426. 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, Monday 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 $544.

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 $271. In the evening is when there is more demand to fly to Cincinnati, so prices are often more expensive at around $498 per ticket.

How have Ontario to Cincinnati flight prices changed over time?

As of November 2026, prices for Ontario to Cincinnati flights are approximately 11% 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

Best Price Found

$91

Fastest flight time

5h 50m

Direct flights

None
The best one-way flight to Cincinnati from Ontario in the past 72 hours is $91. The best round-trip flight deal from Ontario to Cincinnati found on momondo in the last 72 hours is $182.
The fastest flight from Ontario to Cincinnati takes 5h 50m
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 50m.

  • 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 $202Free CancellationRating
5.5
2,512 reviews
Search Frontier flights
American AirlinesPriceFrom $299Free CancellationRating
7.0
12,228 reviews
Search American Airlines flights
SouthwestPriceFrom $312Free CancellationRating
8.0
4,215 reviews
Search Southwest flights
DeltaPriceFrom $335Free CancellationRating
7.8
8,699 reviews
Search Delta flights
United AirlinesPriceFrom $366Free CancellationRating
7.3
10,460 reviews
Search United Airlines flights

Traveling to a place near Cincinnati?

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

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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