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.

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

Frontier, Delta, and Alaska 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.

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 41% of people opting to fly with this airline when traveling to Cincinnati. Keep in mind that there are 9 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.

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.

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 May 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.

$99 Cheap Flights from Ontario to Cincinnati in 2026

Q: 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 $514 to $370. The lowest price recently found on this route was $243.

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Find the cheapest flights from Ontario to Cincinnati

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One-way

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Enter your travel dates to find the best prices.

2:58 pm - 11:37 pm

ONT

CVG

29h 39m

1 stop

12:25 pm - 11:55 pm

CVG

ONT

14h 30m

1 stop

$243Multiple Airlines

Wed, Sep 23 - Tue, Sep 29

6:00 am - 11:20 am

ONT

CVG

26h 20m

1 stop

12:25 pm - 11:55 pm

CVG

ONT

14h 30m

1 stop

$246Frontier

Tue, Sep 22 - Tue, Sep 29

6:00 am - 8:17 am

ONT

CVG

23h 17m

2 stops

12:25 pm - 11:55 pm

CVG

ONT

14h 30m

1 stop

$258Frontier

Tue, Sep 22 - Tue, Sep 29

1:28 pm - 7:48 pm

ONT

CVG

27h 20m

1 stop

9:00 pm - 3:07 pm

CVG

ONT

21h 07m

1 stop

$283Frontier

Tue, Jul 21 - Tue, Jul 28

10:49 am - 11:13 am

ONT

CVG

21h 24m

2 stops

6:00 am - 7:48 pm

CVG

ONT

16h 48m

1 stop

$284Multiple Airlines

Mon, Aug 10 - Thu, Aug 20

6:00 am - 12:29 am

ONT

CVG

15h 29m

1 stop

9:28 pm - 1:40 pm

CVG

ONT

19h 12m

1 stop

$295Frontier

Sat, Oct 24 - Tue, Oct 27

11:38 am - 12:29 am

ONT

CVG

9h 51m

1 stop

9:34 pm - 11:55 pm

CVG

ONT

29h 21m

1 stop

$296Frontier

Tue, Oct 13 - Mon, Oct 19

6:00 am - 7:31 pm

ONT

CVG

10h 31m

1 stop

8:36 pm - 11:49 pm

CVG

ONT

6h 13m

1 stop

$298Frontier

Mon, Aug 24 - Thu, Aug 27

3:40 pm - 7:48 pm

ONT

CVG

25h 08m

1 stop

9:00 pm - 7:53 pm

CVG

ONT

25h 53m

1 stop

$299Frontier

Tue, Aug 11 - Sun, Aug 16

6:00 am - 7:24 pm

ONT

CVG

10h 24m

1 stop

9:00 pm - 7:53 pm

CVG

ONT

25h 53m

1 stop

$300Frontier

Thu, Jul 16 - Tue, Jul 21

Frontier flights from Ontario to Cincinnati

Our best Frontier deals on Ontario to Cincinnati flight tickets

Frontier

Sep 22

ONT6:00 amOntario

26h 20m

1 stop

CVG11:20 amCincinnati Cinci./N. Kentucky

Sep 29

CVG12:25 pmCincinnati Cinci./N. Kentucky

14h 30m

1 stop

ONT11:55 pmOntario

$246

Frontier

Sep 22

ONT6:00 amOntario

23h 17m

2 stops

CVG8:17 amCincinnati Cinci./N. Kentucky

Sep 29

CVG12:25 pmCincinnati Cinci./N. Kentucky

14h 30m

1 stop

ONT11:55 pmOntario

$258

Frontier

Jul 21

ONT1:28 pmOntario

27h 20m

1 stop

CVG7:48 pmCincinnati Cinci./N. Kentucky

Jul 28

CVG9:00 pmCincinnati Cinci./N. Kentucky

21h 07m

1 stop

ONT3:07 pmOntario

$283

American Airlines flights from Ontario to Cincinnati

Our best American Airlines deals on Ontario to Cincinnati flight tickets

American Airlines

Jun 2

ONT6:10 amOntario

11h 19m

2 stops

CVG8:29 pmCincinnati Cinci./N. Kentucky

Jun 9

CVG11:19 amCincinnati Cinci./N. Kentucky

10h 02m

2 stops

ONT6:21 pmOntario

$522

American Airlines

May 27

ONT10:00 pmOntario

7h 31m

1 stop

CVG8:31 amCincinnati Cinci./N. Kentucky

Jun 1

CVG5:28 pmCincinnati Cinci./N. Kentucky

8h 08m

1 stop

ONT10:36 pmOntario

$547

American Airlines

May 27

ONT10:00 pmOntario

7h 31m

1 stop

CVG8:31 amCincinnati Cinci./N. Kentucky

Jun 1

CVG11:18 amCincinnati Cinci./N. Kentucky

10h 04m

2 stops

ONT6:22 pmOntario

$552

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Wed 9/23

2:58 pm-11:37 pm

1 stop29h 39m

Cincinnati Cinci./N. Kentucky

Tue 9/29

12:25 pm-11:55 pm

1 stop14h 30m

$243

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Tue 9/22

6:00 am-11:20 am

1 stop26h 20m

Cincinnati Cinci./N. Kentucky

Tue 9/29

12:25 pm-11:55 pm

1 stop14h 30m

$246

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Tue 9/22

6:00 am-8:17 am

2 stops23h 17m

Cincinnati Cinci./N. Kentucky

Tue 9/29

12:25 pm-11:55 pm

1 stop14h 30m

$258

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Tue 7/21

1:28 pm-7:48 pm

1 stop27h 20m

Cincinnati Cinci./N. Kentucky

Tue 7/28

9:00 pm-3:07 pm

1 stop21h 07m

$283

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Mon 8/10

10:49 am-11:13 am

2 stops21h 24m

Cincinnati Cinci./N. Kentucky

Thu 8/20

6:00 am-7:48 pm

1 stop16h 48m

$284

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Sat 10/24

6:00 am-12:29 am

1 stop15h 29m

Cincinnati Cinci./N. Kentucky

Tue 10/27

9:28 pm-1:40 pm

1 stop19h 12m

$295

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Tue 10/13

11:38 am-12:29 am

1 stop9h 51m

Cincinnati Cinci./N. Kentucky

Mon 10/19

9:34 pm-11:55 pm

1 stop29h 21m

$296

Quickest round-trip

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Mon 8/24

6:00 am-7:31 pm

1 stop10h 31m

Cincinnati Cinci./N. Kentucky

Thu 8/27

8:36 pm-11:49 pm

1 stop6h 13m

$298

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Tue 8/11

3:40 pm-7:48 pm

1 stop25h 08m

Cincinnati Cinci./N. Kentucky

Sun 8/16

9:00 pm-7:53 pm

1 stop25h 53m

$299

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Thu 7/16

6:00 am-7:24 pm

1 stop10h 24m

Cincinnati Cinci./N. Kentucky

Tue 7/21

9:00 pm-7:53 pm

1 stop25h 53m

$300

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?

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 $325. 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 $326.

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 $357. 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 $479.

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 $222. 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 $406 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 $276 on momondo.

How have Ontario to Cincinnati flight prices changed over time?

As of May 2026, prices for Ontario to Cincinnati flights are approximately 173% 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	5h 51m
Direct flights	None

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.

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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 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 May 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 (44% of total bookings). The next most popular airlines are Frontier (23%), United Airlines (14%), and Delta (13%).

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 2,944 reviews	Search Frontier flights
American Airlines	PriceFrom $278	Free Cancellation	Rating 7.1 11,642 reviews	Search American Airlines flights
Delta	PriceFrom $297	Free Cancellation	Rating 7.9 8,454 reviews	Search Delta flights
United Airlines	PriceFrom $304	Free Cancellation	Rating 7.4 9,736 reviews	Search United Airlines flights
Southwest	PriceFrom $312	Free Cancellation	Rating 7.9 4,284 reviews	Search Southwest flights

Florence

Mason

Newport

Sharonville

Covington

Williamstown

Middletown

Lawrenceburg

Blue Ash

West Chester

Fairfield

Oxford

Monroe

Dry Ridge

Hebron

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.

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Cheap flights from Ontario to Cincinnati from $99

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 8/12. 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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Our best American 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

Find info about flight duration, direct flights, and airports for your flight from Ontario to Cincinnati

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

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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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