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

Frontier, Delta, and United Airlines are the most popular carriers 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.

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

Flights connecting via Houston (IAH) have the shortest average one-way travel time: 6h 55m.

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

Houston (IAH) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

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 38% 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 layover airport offers the lowest fares from Ontario to Cincinnati?

Flights via Houston (IAH) offer the lowest average round-trip price of $571.

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 July 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.

$122 Cheap Flights from Ontario to Cincinnati in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Cincinnati

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:17 am - 6:22 pm

ONT

CVG

7h 05m

1 stop

8:30 pm - 11:50 pm

CVG

ONT

6h 20m

1 stop

$241Frontier

Mon, Aug 24 - Mon, Aug 24

6:00 am - 7:25 pm

ONT

CVG

10h 25m

1 stop

5:16 pm - 11:47 pm

CVG

ONT

9h 31m

1 stop

$246Frontier

Wed, Aug 26 - Wed, Sep 30

10:49 am - 7:35 pm

ONT

CVG

5h 46m

1 stop

5:34 am - 2:16 pm

CVG

ONT

11h 42m

2 stops

$373Multiple Airlines

Thu, Sep 3 - Tue, Sep 15

12:37 pm - 11:25 pm

ONT

CVG

7h 48m

1 stop

6:00 am - 9:35 am

CVG

ONT

6h 35m

1 stop

$377American Airlines

Sat, Oct 3 - Tue, Oct 6

6:15 am - 6:22 pm

ONT

CVG

9h 07m

2 stops

12:36 pm - 7:54 pm

CVG

ONT

10h 18m

1 stop

$382American Airlines

Sat, Oct 3 - Tue, Oct 6

7:05 am - 5:58 pm

ONT

CVG

7h 53m

1 stop

7:05 am - 11:09 am

CVG

ONT

7h 04m

1 stop

$385Delta

Sat, Aug 29 - Thu, Oct 1

10:00 pm - 8:56 am

ONT

CVG

7h 56m

1 stop

7:05 am - 11:09 am

CVG

ONT

7h 04m

1 stop

$385Delta

Thu, Sep 3 - Thu, Oct 1

6:40 am - 6:35 pm

ONT

CVG

8h 55m

2 stops

5:25 pm - 10:05 pm

CVG

ONT

7h 40m

2 stops

$387Southwest

Tue, Sep 15 - Thu, Sep 17

6:40 am - 6:35 pm

ONT

CVG

8h 55m

2 stops

5:25 pm - 10:05 pm

CVG

ONT

7h 40m

2 stops

$400Southwest

Wed, Sep 23 - Mon, Sep 28

4:09 pm - 9:06 pm

ONT

CVG

25h 57m

1 stop

8:36 am - 3:15 pm

CVG

ONT

9h 39m

1 stop

$437Alaska Airlines

Wed, Nov 4 - Sun, Nov 8

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Frontier flights from Ontario to Cincinnati

Our best Frontier deals on Ontario to Cincinnati flight tickets

Frontier

Aug 24

ONT8:17 amOntario

7h 05m

1 stop

CVG6:22 pmCincinnati Cinci./N. Kentucky

Aug 24

CVG8:30 pmCincinnati Cinci./N. Kentucky

6h 20m

1 stop

ONT11:50 pmOntario

$241

Frontier

Aug 24

ONT8:17 amOntario

7h 05m

1 stop

CVG6:22 pmCincinnati Cinci./N. Kentucky

Aug 26

CVG8:30 pmCincinnati Cinci./N. Kentucky

6h 20m

1 stop

ONT11:50 pmOntario

$246

Frontier

Aug 27

ONT11:15 amOntario

6h 10m

1 stop

CVG8:25 pmCincinnati Cinci./N. Kentucky

Sep 5

CVG8:30 pmCincinnati Cinci./N. Kentucky

16h 34m

1 stop

ONT10:04 amOntario

$247

United Airlines flights from Ontario to Cincinnati

Our best United Airlines deals on Ontario to Cincinnati flight tickets

United Airlines

Aug 11

ONT1:18 pmOntario

6h 12m

1 stop

CVG10:30 pmCincinnati Cinci./N. Kentucky

Aug 13

CVG12:29 pmCincinnati Cinci./N. Kentucky

13h 30m

2 stops

ONT10:59 pmOntario

$602

United Airlines

Aug 11

ONT5:00 amOntario

12h 35m

2 stops

CVG8:35 pmCincinnati Cinci./N. Kentucky

Aug 18

CVG3:25 pmCincinnati Cinci./N. Kentucky

8h 28m

1 stop

ONT8:53 pmOntario

$606

United Airlines

Aug 7

ONT5:45 amOntario

11h 48m

2 stops

CVG8:33 pmCincinnati Cinci./N. Kentucky

Aug 13

CVG11:17 amCincinnati Cinci./N. Kentucky

9h 54m

2 stops

ONT6:11 pmOntario

$607

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Mon 8/24

8:17 am-6:22 pm

1 stop7h 05m

Cincinnati Cinci./N. Kentucky

Mon 8/24

8:30 pm-11:50 pm

1 stop6h 20m

$241

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Wed 8/26

6:00 am-7:25 pm

1 stop10h 25m

Cincinnati Cinci./N. Kentucky

Wed 9/30

5:16 pm-11:47 pm

1 stop9h 31m

$246

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Thu 9/3

10:49 am-7:35 pm

1 stop5h 46m

Cincinnati Cinci./N. Kentucky

Tue 9/15

5:34 am-2:16 pm

2 stops11h 42m

$373

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Sat 10/3

12:37 pm-11:25 pm

1 stop7h 48m

Cincinnati Cinci./N. Kentucky

Tue 10/6

6:00 am-9:35 am

1 stop6h 35m

$377

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Sat 10/3

6:15 am-6:22 pm

2 stops9h 07m

Cincinnati Cinci./N. Kentucky

Tue 10/6

12:36 pm-7:54 pm

1 stop10h 18m

$382

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Sat 8/29

7:05 am-5:58 pm

1 stop7h 53m

Cincinnati Cinci./N. Kentucky

Thu 10/1

7:05 am-11:09 am

1 stop7h 04m

$385

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Thu 9/3

10:00 pm-8:56 am

1 stop7h 56m

Cincinnati Cinci./N. Kentucky

Thu 10/1

7:05 am-11:09 am

1 stop7h 04m

$385

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Tue 9/15

6:40 am-6:35 pm

2 stops8h 55m

Cincinnati Cinci./N. Kentucky

Thu 9/17

5:25 pm-10:05 pm

2 stops7h 40m

$387

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Wed 9/23

6:40 am-6:35 pm

2 stops8h 55m

Cincinnati Cinci./N. Kentucky

Mon 9/28

5:25 pm-10:05 pm

2 stops7h 40m

$400

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Wed 11/4

4:09 pm-9:06 pm

1 stop25h 57m

Cincinnati Cinci./N. Kentucky

Sun 11/8

8:36 am-3:15 pm

1 stop9h 39m

$437

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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 $335 to $442.
The lowest price recently found on this route was $241.

What is the cheapest month to fly to Cincinnati?

The month of September is, on average, the cheapest month to fly to Cincinnati from Ontario, with most prices found around $336. If you aren’t able to travel to Cincinnati during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $342.

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 $377. 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 $515.

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 $337. 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 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 $419 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 $308 on momondo.

How have Ontario to Cincinnati flight prices changed over time?

As of July 2026, prices for Ontario to Cincinnati flights are approximately 90% 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	6h 04m
Direct flights	None

The fastest flight from Ontario to Cincinnati takes 6h 04m

There are no direct flights from Ontario to Cincinnati. There are no popular flight routes from Ontario to Cincinnati.

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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 6h 04m.
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 July 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 (40% of total bookings). The next most popular airlines are Frontier (26%), Delta (15%), and United Airlines (14%).

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 $150	Free Cancellation	Rating 5.6 2,753 reviews	Search Frontier flights
American Airlines	PriceFrom $299	Free Cancellation	Rating 7.1 11,839 reviews	Search American Airlines flights
Delta	PriceFrom $303	Free Cancellation	Rating 7.8 8,483 reviews	Search Delta flights
United Airlines	PriceFrom $304	Free Cancellation	Rating 7.4 10,048 reviews	Search United Airlines flights
Southwest	PriceFrom $312	Free Cancellation	Rating 8.0 4,228 reviews	Search Southwest flights

Florence

Mason

Newport

Sharonville

Covington

Middletown

West Chester

Lawrenceburg

Williamstown

Blue Ash

Fairfield

Oxford

Hebron

Monroe

Dry Ridge

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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Cheap flights from Ontario to Cincinnati from $122

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 8/31. 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

United Airlines flights from Ontario to Cincinnati

Our best United Airlines deals on Ontario to Cincinnati flight tickets

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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 far in advance should I book a flight from Ontario 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

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.

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

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