What airlines fly to Ontario?

Delta, American Airlines and United Airlines are the top three most popular airlines that fly to Ontario from Cincinnati according to our data. Delta is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 8 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

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

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

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

Flights via Denver (DEN) offer the lowest average round-trip price of $486.

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

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 6h 23m.

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

Delta, Alaska Airlines, and Southwest are the most popular carriers operating from Cincinnati Cinci./N. Kentucky to Ontario

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

Salt Lake City (SLC) has the shortest average layover time for this route: 1h 01m.

When did momondo last update prices for flights from Cincinnati Cinci./N. Kentucky Airport to Ontario Airport?

Prices for flights from Cincinnati Cinci./N. Kentucky Airport to Ontario Airport are updated daily.

How many operators does momondo search for flights from Cincinnati Cinci./N. Kentucky Airport to Ontario Airport?

As of May 2026, there are 5 operators available to choose from for flights from Cincinnati Cinci./N. Kentucky Airport to Ontario Airport.

How old do you have to be to fly from Cincinnati Cinci./N. Kentucky Airport to Ontario Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Cincinnati Cinci./N. Kentucky Airport to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$105 Cheap Flights from Cincinnati to Ontario in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from $477 to $362. The lowest price recently found on this route was $210.

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Find the cheapest flights from Cincinnati to Los Angeles

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

8:15 pm - 11:50 pm

CVG

ONT

6h 35m

1 stop

6:00 am - 7:03 pm

ONT

CVG

10h 03m

1 stop

$210Frontier

Tue, Jul 14 - Wed, Jul 22

9:00 pm - 3:07 pm

CVG

ONT

21h 07m

1 stop

3:40 pm - 7:48 pm

ONT

CVG

25h 08m

1 stop

$220Frontier

Tue, Aug 4 - Tue, Aug 11

8:15 pm - 10:03 am

CVG

ONT

16h 48m

1 stop

3:40 pm - 7:48 pm

ONT

CVG

25h 08m

1 stop

$221Frontier

Tue, Jul 28 - Tue, Aug 4

8:15 pm - 10:05 am

CVG

ONT

16h 50m

1 stop

3:40 pm - 7:48 pm

ONT

CVG

25h 08m

1 stop

$222Frontier

Tue, Jun 30 - Tue, Jul 7

8:36 pm - 11:50 pm

CVG

ONT

6h 14m

1 stop

6:00 am - 7:03 pm

ONT

CVG

10h 03m

1 stop

$224Frontier

Sat, Jul 11 - Tue, Jul 21

8:36 pm - 11:49 pm

CVG

ONT

6h 13m

1 stop

6:00 am - 7:31 pm

ONT

CVG

10h 31m

1 stop

$230Frontier

Tue, Sep 1 - Sun, Sep 6

8:36 pm - 10:05 am

CVG

ONT

16h 29m

1 stop

6:00 am - 7:31 pm

ONT

CVG

10h 31m

1 stop

$235Frontier

Tue, May 26 - Sat, May 30

8:40 pm - 8:04 am

CVG

ONT

14h 24m

1 stop

3:34 pm - 10:17 am

ONT

CVG

15h 43m

2 stops

$237Frontier

Fri, May 29 - Tue, Jun 16

8:36 pm - 11:50 pm

CVG

ONT

6h 14m

1 stop

6:00 am - 7:24 pm

ONT

CVG

10h 24m

1 stop

$238Frontier

Sat, Jul 25 - Sat, Aug 1

9:00 pm - 7:53 pm

CVG

ONT

25h 53m

1 stop

3:40 pm - 7:48 pm

ONT

CVG

25h 08m

1 stop

$241Frontier

Wed, Jul 8 - Mon, Jul 13

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Frontier flights from Cincinnati to Ontario

Our best Frontier deals on Cincinnati to Ontario flight tickets

Frontier

Jul 14

CVG8:15 pmCincinnati Cinci./N. Kentucky

6h 35m

1 stop

ONT11:50 pmOntario

Jul 22

ONT6:00 amOntario

10h 03m

1 stop

CVG7:03 pmCincinnati Cinci./N. Kentucky

$210

Frontier

Aug 4

CVG9:00 pmCincinnati Cinci./N. Kentucky

21h 07m

1 stop

ONT3:07 pmOntario

Aug 11

ONT3:40 pmOntario

25h 08m

1 stop

CVG7:48 pmCincinnati Cinci./N. Kentucky

$220

Frontier

Jul 28

CVG8:15 pmCincinnati Cinci./N. Kentucky

16h 48m

1 stop

ONT10:03 amOntario

Aug 4

ONT3:40 pmOntario

25h 08m

1 stop

CVG7:48 pmCincinnati Cinci./N. Kentucky

$221

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 7/14

8:15 pm-11:50 pm

1 stop6h 35m

Ontario

Wed 7/22

6:00 am-7:03 pm

1 stop10h 03m

$210

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 8/4

9:00 pm-3:07 pm

1 stop21h 07m

Ontario

Tue 8/11

3:40 pm-7:48 pm

1 stop25h 08m

$220

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 7/28

8:15 pm-10:03 am

1 stop16h 48m

Ontario

Tue 8/4

3:40 pm-7:48 pm

1 stop25h 08m

$221

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 6/30

8:15 pm-10:05 am

1 stop16h 50m

Ontario

Tue 7/7

3:40 pm-7:48 pm

1 stop25h 08m

$222

Quickest round-trip

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 7/11

8:36 pm-11:50 pm

1 stop6h 14m

Ontario

Tue 7/21

6:00 am-7:03 pm

1 stop10h 03m

$224

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 9/1

8:36 pm-11:49 pm

1 stop6h 13m

Ontario

Sun 9/6

6:00 am-7:31 pm

1 stop10h 31m

$230

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 5/26

8:36 pm-10:05 am

1 stop16h 29m

Ontario

Sat 5/30

6:00 am-7:31 pm

1 stop10h 31m

$235

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Fri 5/29

8:40 pm-8:04 am

1 stop14h 24m

Ontario

Tue 6/16

3:34 pm-10:17 am

2 stops15h 43m

$237

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 7/25

8:36 pm-11:50 pm

1 stop6h 14m

Ontario

Sat 8/1

6:00 am-7:24 pm

1 stop10h 24m

$238

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Wed 7/8

9:00 pm-7:53 pm

1 stop25h 53m

Ontario

Mon 7/13

3:40 pm-7:48 pm

1 stop25h 08m

$241

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 Cincinnati to Ontario

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 Cincinnati and Ontario?

What is the cheapest month to fly to Ontario?

In general, September is the cheapest month to fly from Cincinnati to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $320. If you aren’t able to travel during the month of September, then book flights to Ontario from Cincinnati during August instead. Flights to Ontario in August, while not as cheap as those in September, still average around $320.

How have Cincinnati to Ontario flight prices changed over time?

As of May 2026, prices for Cincinnati to Ontario flights are approximately 20% cheaper when compared to flights at the same time last year.

When to book flights from Cincinnati to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Cincinnati to Ontario according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

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

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

Fastest flight time	6h 13m
Direct flights	None

The fastest flight from Cincinnati to Ontario takes 6h 13m

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

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Frequently asked questions about flying from Cincinnati to Ontario

How far is Cincinnati Cinci./N. Kentucky to Ontario by plane?
The distance between Cincinnati Cinci./N. Kentucky and Ontario is about 1859.2 mi. In terms of flight time, this usually takes a little over 6h 13m.
When did momondo last update prices for flights from Cincinnati Cinci./N. Kentucky Airport to Ontario Airport?
Prices for flights from Cincinnati Cinci./N. Kentucky Airport to Ontario Airport are updated daily.
How many operators does momondo search for flights from Cincinnati Cinci./N. Kentucky Airport to Ontario Airport?
As of May 2026, there are 5 operators available to choose from for flights from Cincinnati Cinci./N. Kentucky Airport to Ontario Airport.
How old do you have to be to fly from Cincinnati Cinci./N. Kentucky Airport to Ontario Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Cincinnati Cinci./N. Kentucky Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Cincinnati to Ontario?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Cincinnati to Ontario is Delta (29% of total bookings). The next most popular airlines are American Airlines (27%), Frontier (25%), and United Airlines (13%).

Best airlines flying from Cincinnati to Ontario

Compare and see reviews for airlines that fly from Cincinnati to Ontario with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $157	Free Cancellation	Rating 5.6 2,965 reviews	Search Frontier flights
American Airlines	PriceFrom $215	Free Cancellation	Rating 7.1 11,667 reviews	Search American Airlines flights
Delta	PriceFrom $312	Free Cancellation	Rating 7.9 8,459 reviews	Search Delta flights
United Airlines	PriceFrom $316	Free Cancellation	Rating 7.4 9,683 reviews	Search United Airlines flights
Southwest	PriceFrom $318	Free Cancellation	Rating 7.9 4,305 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Cincinnati to Ontario?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Cincinnati to Ontario for you.

Can I find flights from Cincinnati to Ontario with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Cincinnati to Ontario flights to just show those with flexible booking policies.

How can momondo help me find flights from Cincinnati to Ontario?

momondo helps you find the best flight between Cincinnati and Ontario 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 Cincinnati to Ontario right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Ontario from Cincinnati. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Ontario trip

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Cheap flights from Cincinnati to Los Angeles from $105

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Cincinnati to Los Angeles departing on 5/15. 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 Cincinnati to Ontario

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How to get the cheapest flight ticket from Cincinnati to Ontario

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

What is the cheapest month to fly to Ontario?

How have Cincinnati to Ontario flight prices changed over time?

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

What airlines fly to Ontario?

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

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

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

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

When to book flights from Cincinnati to Ontario

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

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

Fastest flight time

Direct flights

Frequently asked questions about flying from Cincinnati to Ontario

Best airlines flying from Cincinnati to Ontario

Compare and see reviews for airlines that fly from Cincinnati to Ontario with momondo

Why use momondo?

An easier way to manage your Ontario 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

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

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