Which layover airport offers the lowest fares from Ontario to Cincinnati?

Flights via Salt Lake City (SLC) offer the lowest average round-trip price of $486.

What is the cheapest airline that flies from Ontario to Cincinnati Cinci./N. Kentucky?

Delta is the most popular carrier operating from Ontario to Cincinnati Cinci./N. Kentucky

Which layover airport has the shortest connection time from Ontario to Cincinnati?

Houston (IAH) has the shortest average layover time for this route: 1h 20m.

What airlines fly to Cincinnati?

American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Cincinnati from Ontario according to our data. American Airlines is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Cincinnati. Keep in mind that there are 8 different airlines that fly to Cincinnati on a routine basis, so you have a few additional options to choose from.

Which airport is the most popular layover for flights between Ontario and Cincinnati?

Houston (IAH) was the most common stop: 33% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest travel time from Ontario to Cincinnati?

Flights connecting via Salt Lake City (SLC) have the shortest average one-way travel time: 6h 35m.

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?

The number of operators available for flights from Ontario Airport to Cincinnati Cinci./N. Kentucky Airport is 5 as of October 2026.

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.

$120 Cheap Flights from Ontario to Cincinnati in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Cincinnati

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11:52 am - 3:22 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

24h 30m1 stop Denver Intl

4:32 pm - 10:35 amCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

21h 03m1 stop Denver Intl

$242Frontier

Thu, Nov 5 - Mon, Nov 9

6:30 am - 3:22 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

29h 52m1 stop Denver Intl

12:43 pm - 10:35 amCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

24h 52m2 stops Atlanta Hartsfield-Jackson Denver Intl

$243Frontier

Tue, Nov 10 - Tue, Nov 17

6:30 am - 11:19 amONT Ontario-CVG Cincinnati Cinci./N. Kentucky

25h 49m2 stops Denver Intl Atlanta Hartsfield-Jackson

9:36 am - 7:30 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

12h 54m1 stop San Francisco

$301Multiple Airlines

Tue, Nov 10 - Thu, Nov 12

6:30 am - 3:21 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

5h 51m1 stop Denver Intl

8:36 am - 3:13 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

9h 37m1 stop Seattle/Tacoma Intl

$325Multiple Airlines

Sat, Nov 7 - Tue, Nov 10

1:29 pm - 10:40 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

6h 11m1 stop Denver Intl

7:00 am - 12:29 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

8h 29m1 stop San Francisco

$380United Airlines

Tue, Nov 10 - Tue, Nov 17

2:22 pm - 11:39 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

6h 17m1 stop Dallas/Fort Worth

9:00 am - 1:28 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

7h 28m1 stop Dallas/Fort Worth

$385American Airlines

Wed, Dec 30 - Wed, Jan 6

2:22 pm - 11:39 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

6h 17m1 stop Dallas/Fort Worth

5:21 pm - 11:13 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

8h 52m1 stop Dallas/Fort Worth

$385American Airlines

Wed, Dec 30 - Wed, Jan 6

1:15 pm - 11:07 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

6h 52m1 stop Salt Lake City

3:00 pm - 8:54 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

8h 54m1 stop Atlanta Hartsfield-Jackson

$385Delta

Fri, Nov 13 - Tue, Nov 17

1:15 pm - 11:07 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

6h 52m1 stop Salt Lake City

1:50 pm - 8:54 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

10h 04m1 stop Atlanta Hartsfield-Jackson

$385Delta

Wed, Nov 11 - Tue, Nov 17

1:29 pm - 10:40 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

6h 11m1 stop Denver Intl

7:00 am - 12:29 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

8h 29m1 stop San Francisco

$500United Airlines

Tue, Nov 3 - Thu, Nov 5

Cheap last minute flights

Enter your travel dates to find the best prices.

6:15 am - 3:27 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

6h 12m1 stop Denver Intl

8:34 pm - 10:29 amCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

16h 55m1 stop Denver Intl

$469Frontier

Sat, Oct 17 - Sun, Oct 25

6:15 am - 3:27 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

6h 12m1 stop Denver Intl

8:34 pm - 10:29 amCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

16h 55m1 stop Denver Intl

$469Frontier

Fri, Oct 16 - Sun, Oct 25

8:35 pm - 6:04 amONT Ontario-CVG Cincinnati Cinci./N. Kentucky

6h 29m1 stop Las Vegas Harry Reid Intl

8:34 pm - 10:29 amCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

16h 55m1 stop Denver Intl

$469Frontier

Mon, Oct 19 - Sun, Oct 25

6:15 am - 10:10 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

12h 55m1 stop Phoenix Sky Harbor Intl

5:30 am - 12:14 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

9h 44m2 stops Chicago O'Hare Intl Phoenix Sky Harbor Intl

$850American Airlines

Fri, Oct 16 - Sun, Oct 25

6:00 am - 11:59 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

14h 59m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

1:52 pm - 6:47 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

7h 55m1 stop Chicago O'Hare Intl

$879United Airlines

Sat, Oct 17 - Sun, Oct 25

6:00 am - 11:59 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

14h 59m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

5:20 am - 12:30 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

10h 10m2 stops Chicago O'Hare Intl Denver Intl

$884United Airlines

Sat, Oct 17 - Sun, Oct 25

6:15 am - 7:21 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

10h 06m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl

7:49 am - 12:14 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

7h 25m1 stop Phoenix Sky Harbor Intl

$886American Airlines

Sat, Oct 17 - Sun, Oct 25

12:43 pm - 11:50 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

8h 07m1 stop Dallas/Fort Worth

5:30 am - 12:14 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

9h 44m2 stops Chicago O'Hare Intl Phoenix Sky Harbor Intl

$886American Airlines

Sun, Oct 18 - Mon, Oct 26

6:02 am - 8:46 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

11h 44m2 stops Seattle/Tacoma Intl Chicago O'Hare Intl

5:30 am - 1:16 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

10h 46m2 stops Chicago O'Hare Intl Seattle/Tacoma Intl

$937Alaska Airlines

Tue, Oct 20 - Tue, Oct 27

6:56 pm - 9:24 amONT Ontario-CVG Cincinnati Cinci./N. Kentucky

11h 28m2 stops Seattle/Tacoma Intl Chicago O'Hare Intl

11:58 am - 11:42 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

14h 44m2 stops Chicago O'Hare Intl Seattle/Tacoma Intl

$1,207Alaska Airlines

Fri, Oct 16 - Fri, Oct 23

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Frontier flights from Ontario to Cincinnati

Our best Frontier deals on Ontario to Cincinnati flight tickets

Frontier

Nov 5

ONT11:52 amOntario

24h 30m

1 stop

CVG3:22 pmCincinnati Cinci./N. Kentucky

Nov 9

CVG4:32 pmCincinnati Cinci./N. Kentucky

21h 03m

1 stop

ONT10:35 amOntario

$242

Frontier

Nov 10

ONT6:30 amOntario

29h 52m

1 stop

CVG3:22 pmCincinnati Cinci./N. Kentucky

Nov 17

CVG12:43 pmCincinnati Cinci./N. Kentucky

24h 52m

2 stops

ONT10:35 amOntario

$243

Frontier

Nov 7

ONT6:30 amOntario

5h 51m

1 stop

CVG3:21 pmCincinnati Cinci./N. Kentucky

Nov 18

CVG4:32 pmCincinnati Cinci./N. Kentucky

10h 19m

1 stop

ONT11:51 pmOntario

$250

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Thu 11/5

11:52 am-3:22 pm

1 stop24h 30m

Cincinnati Cinci./N. Kentucky

Mon 11/9

4:32 pm-10:35 am

1 stop21h 03m

$242

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Tue 11/10

6:30 am-3:22 pm

1 stop29h 52m

Cincinnati Cinci./N. Kentucky

Tue 11/17

12:43 pm-10:35 am

2 stops24h 52m

$243

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Tue 11/10

6:30 am-11:19 am

2 stops25h 49m

Cincinnati Cinci./N. Kentucky

Thu 11/12

9:36 am-7:30 pm

1 stop12h 54m

$301

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Sat 11/7

6:30 am-3:21 pm

1 stop5h 51m

Cincinnati Cinci./N. Kentucky

Tue 11/10

8:36 am-3:13 pm

1 stop9h 37m

$325

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Tue 11/10

1:29 pm-10:40 pm

1 stop6h 11m

Cincinnati Cinci./N. Kentucky

Tue 11/17

7:00 am-12:29 pm

1 stop8h 29m

$380

Quickest round-trip

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Wed 12/30

2:22 pm-11:39 pm

1 stop6h 17m

Cincinnati Cinci./N. Kentucky

Wed 1/6

9:00 am-1:28 pm

1 stop7h 28m

$385

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Wed 12/30

2:22 pm-11:39 pm

1 stop6h 17m

Cincinnati Cinci./N. Kentucky

Wed 1/6

5:21 pm-11:13 pm

1 stop8h 52m

$385

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Fri 11/13

1:15 pm-11:07 pm

1 stop6h 52m

Cincinnati Cinci./N. Kentucky

Tue 11/17

3:00 pm-8:54 pm

1 stop8h 54m

$385

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Wed 11/11

1:15 pm-11:07 pm

1 stop6h 52m

Cincinnati Cinci./N. Kentucky

Tue 11/17

1:50 pm-8:54 pm

1 stop10h 04m

$385

OntarioCincinnati

ONT Ontario - CVG Cincinnati Cinci./N. Kentucky

ONTCVG

Ontario

Tue 11/3

1:29 pm-10:40 pm

1 stop6h 11m

Cincinnati Cinci./N. Kentucky

Thu 11/5

7:00 am-12:29 pm

1 stop8h 29m

$500

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Layovers

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 $352 to $428.
The lowest price recently found on this route was $242.

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 November is also cheap. Prices for this month can be found on momondo for an average of $382.

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 $495 per ticket.

How have Ontario to Cincinnati flight prices changed over time?

As of October 2026, prices for Ontario to Cincinnati flights are approximately 184% 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	$120
Fastest flight time	5h 51m
Direct flights	None

The best one-way flight to Cincinnati from Ontario in the past 72 hours is $120. The best round-trip flight deal from Ontario to Cincinnati found on momondo in the last 72 hours is $242.

The fastest flight from Ontario to Cincinnati takes 5h 51m

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 51m.
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?
The number of operators available for flights from Ontario Airport to Cincinnati Cinci./N. Kentucky Airport is 5 as of October 2026.
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?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Ontario to Cincinnati is American Airlines (35% of total bookings). The next most popular airlines are Frontier (27%), Delta (20%), and United Airlines (12%).

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
Frontier	PriceFrom $187	Free Cancellation	Rating 5.5 2,539 reviews	Search Frontier flights
American Airlines	PriceFrom $299	Free Cancellation	Rating 7.0 12,168 reviews	Search American Airlines flights
Southwest	PriceFrom $312	Free Cancellation	Rating 7.9 4,215 reviews	Search Southwest flights
Delta	PriceFrom $335	Free Cancellation	Rating 7.8 8,654 reviews	Search Delta flights
United Airlines	PriceFrom $366	Free Cancellation	Rating 7.4 10,366 reviews	Search United Airlines flights

Florence

Mason

Sharonville

Covington

Newport

Middletown

West Chester

Fairfield

Lawrenceburg

Blue Ash

Williamstown

Oxford

Hebron

Monroe

Dry Ridge

Trenton

Corinth

Bethel

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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Airports servicing Ohio

Lima Allen County Airport

Columbus Airport

Akron/Canton Airport

Cleveland Hopkins Intl Airport

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Youngstown Airport

Cheap flights from Ontario to Cincinnati from $120

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 11/10. 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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Frontier flights from Ontario to Cincinnati

Our best Frontier deals on Ontario to Cincinnati flight tickets

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See travel insights to Cincinnati from

How to get the cheapest flight ticket from Ontario to Cincinnati

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

What is the cheapest month to fly to Cincinnati?

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

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

How have Ontario to Cincinnati flight prices changed over time?

What is the cheapest airline that flies from Ontario to Cincinnati Cinci./N. Kentucky?

What airlines fly to Cincinnati?

Which airport is the most popular layover for flights between Ontario and Cincinnati?

Which layover airport offers the lowest fares from Ontario to Cincinnati?

Which layover airport has the shortest travel time from Ontario to Cincinnati?

Which layover airport has the shortest connection time from Ontario to Cincinnati?

When to book flights from Ontario to Cincinnati

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying 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

Traveling to a place near Cincinnati?

Why use momondo?

An easier way to manage your Cincinnati trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Ohio

Fly your favorite airline to Cincinnati

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Cincinnati

List of cabin classes available on flights landing in Cincinnati. Availability may vary depending on flight origin and airline.

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Ontario

According to popular flight searches on momondo this year

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