How many flights depart from Cincinnati to Ontario on average per week?

4 flights are operational weekly from Cincinnati to Ontario as of October 2026. The most popular departure day for this route is Mon, with 25% of flights per week taking off on this day.

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

Frontier is the most popular carrier 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.

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 36% 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 layover airport has the shortest travel time from Cincinnati to Ontario?

Flights connecting via Nashville (BNA) have the shortest average one-way travel time: 6h 20m.

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

Dallas (DFW) was the most common stop: 25% of momondo users choosing 1-stop flights on this route connected there.

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 October 2026, there are 4 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.

$84 Cheap Flights from Cincinnati to Ontario in 2026/27

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Find the cheapest flights from Cincinnati to Los Angeles

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Cheap round-trip flights

Enter your travel dates to find the best prices.

9:13 am - 11:51 amCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

29h 38m2 stops Atlanta Hartsfield-Jackson Las Vegas Harry Reid Intl

3:33 pm - 4:03 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

21h 30m1 stop Las Vegas Harry Reid Intl

$167Multiple Airlines

Tue, Dec 15 - Wed, Jan 6

10:16 am - 11:51 amCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

28h 35m2 stops Atlanta Hartsfield-Jackson Las Vegas Harry Reid Intl

3:33 pm - 4:03 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

21h 30m1 stop Las Vegas Harry Reid Intl

$174Multiple Airlines

Wed, Dec 9 - Wed, Jan 6

9:13 am - 11:51 amCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

29h 38m2 stops Atlanta Hartsfield-Jackson Las Vegas Harry Reid Intl

6:00 am - 5:59 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

8h 59m1 stop Denver Intl

$207Frontier

Tue, Dec 8 - Sat, Dec 12

7:02 pm - 12:20 amCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

8h 18m1 stop Denver Intl

6:00 am - 5:59 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

8h 59m1 stop Denver Intl

$222Frontier

Fri, Dec 11 - Mon, Dec 14

7:28 am - 12:39 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

8h 11m1 stop Phoenix Sky Harbor Intl

10:30 pm - 10:38 amONT Ontario-CVG Cincinnati Cinci./N. Kentucky

9h 08m1 stop Charlotte Douglas

$329American Airlines

Thu, Dec 3 - Mon, Dec 7

7:26 am - 12:38 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

8h 12m1 stop Phoenix Sky Harbor Intl

1:24 pm - 10:59 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

6h 35m1 stop Phoenix Sky Harbor Intl

$329American Airlines

Sat, Dec 12 - Sat, Jan 9

6:00 am - 11:07 amCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

8h 07m1 stop Atlanta Hartsfield-Jackson

6:00 am - 3:09 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

6h 09m1 stop Salt Lake City

$329Delta

Thu, Dec 10 - Tue, Jan 12

1:54 pm - 8:58 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

10h 04m1 stop Atlanta Hartsfield-Jackson

12:00 pm - 9:55 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

6h 55m1 stop Atlanta Hartsfield-Jackson

$329Delta

Tue, Dec 15 - Tue, Jan 12

5:12 pm - 9:59 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

7h 47m1 stop Houston George Bush Intcntl

5:00 am - 7:18 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

11h 18m2 stops Denver Intl Washington, D.C. Dulles Intl

$334United Airlines

Sat, Dec 12 - Sat, Jan 9

7:15 am - 12:34 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

8h 19m2 stops Chicago O'Hare Intl Denver Intl

6:00 am - 7:18 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

10h 18m2 stops San Francisco Washington, D.C. Dulles Intl

$358United Airlines

Sat, Dec 12 - Sat, Jan 9

Cheap last minute flights

Enter your travel dates to find the best prices.

4:32 pm - 11:51 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

10h 19m1 stop Denver Intl

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

5h 52m1 stop Denver Intl

$340Frontier

Sat, Oct 31 - Wed, Nov 11

4:32 pm - 11:51 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

10h 19m1 stop Denver Intl

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

5h 51m1 stop Denver Intl

$340Frontier

Sat, Oct 31 - Sat, Nov 7

4:32 pm - 11:51 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

10h 19m1 stop Denver Intl

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

5h 51m1 stop Denver Intl

$380Frontier

Mon, Nov 2 - Sat, Nov 7

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

9h 37m1 stop Seattle/Tacoma Intl

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

24h 30m1 stop Denver Intl

$654Multiple Airlines

Tue, Nov 3 - Tue, Nov 17

7:28 am - 6:10 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

13h 42m1 stop Phoenix Sky Harbor Intl

11:59 pm - 10:50 amONT Ontario-CVG Cincinnati Cinci./N. Kentucky

7h 51m1 stop Dallas/Fort Worth

$655American Airlines

Tue, Nov 3 - Thu, Nov 12

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

9h 37m1 stop Seattle/Tacoma Intl

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

24h 30m1 stop Denver Intl

$691Multiple Airlines

Tue, Nov 3 - Tue, Nov 10

11:10 am - 6:47 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

10h 37m1 stop Chicago O'Hare Intl

5:00 am - 2:19 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

6h 19m1 stop Denver Intl

$895United Airlines

Sat, Oct 31 - Sat, Nov 7

7:00 am - 6:47 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

14h 47m1 stop Chicago O'Hare Intl

5:00 am - 2:19 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

6h 19m1 stop Denver Intl

$895United Airlines

Sat, Oct 31 - Fri, Nov 13

3:00 pm - 7:30 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

7h 30m1 stop Atlanta Hartsfield-Jackson

11:10 pm - 8:54 amONT Ontario-CVG Cincinnati Cinci./N. Kentucky

6h 44m1 stop Atlanta Hartsfield-Jackson

$917Delta

Sun, Nov 1 - Mon, Nov 9

7:00 am - 12:36 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

8h 36m1 stop Salt Lake City

6:00 am - 3:22 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

6h 22m1 stop Salt Lake City

$2,348Delta

Tue, Nov 3 - Wed, Nov 11

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Frontier flights from Cincinnati to Ontario

Our best Frontier deals on Cincinnati to Ontario flight tickets

Frontier

Dec 8

CVG9:13 amCincinnati Cinci./N. Kentucky

29h 38m

2 stops

ONT11:51 amOntario

Dec 12

ONT6:00 amOntario

8h 59m

1 stop

CVG5:59 pmCincinnati Cinci./N. Kentucky

$207

Frontier

Dec 7

CVG7:02 pmCincinnati Cinci./N. Kentucky

18h 43m

1 stop

ONT10:45 amOntario

Dec 11

ONT6:00 amOntario

8h 59m

1 stop

CVG5:59 pmCincinnati Cinci./N. Kentucky

$230

Frontier

Nov 26

CVG7:00 amCincinnati Cinci./N. Kentucky

20h 14m

2 stops

ONT12:14 amOntario

Dec 2

ONT6:00 amOntario

8h 57m

1 stop

CVG5:57 pmCincinnati Cinci./N. Kentucky

$237

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CincinnatiOntario

CVG Cincinnati Cinci./N. Kentucky - ONT Ontario

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 12/15

9:13 am-11:51 am

2 stops29h 38m

Ontario

Wed 1/6

3:33 pm-4:03 pm

1 stop21h 30m

$167

CincinnatiOntario

CVG Cincinnati Cinci./N. Kentucky - ONT Ontario

CVGONT

Cincinnati Cinci./N. Kentucky

Wed 12/9

10:16 am-11:51 am

2 stops28h 35m

Ontario

Wed 1/6

3:33 pm-4:03 pm

1 stop21h 30m

$174

CincinnatiOntario

CVG Cincinnati Cinci./N. Kentucky - ONT Ontario

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 12/8

9:13 am-11:51 am

2 stops29h 38m

Ontario

Sat 12/12

6:00 am-5:59 pm

1 stop8h 59m

$207

CincinnatiOntario

CVG Cincinnati Cinci./N. Kentucky - ONT Ontario

CVGONT

Cincinnati Cinci./N. Kentucky

Fri 12/11

7:02 pm-12:20 am

1 stop8h 18m

Ontario

Mon 12/14

6:00 am-5:59 pm

1 stop8h 59m

$222

CincinnatiOntario

CVG Cincinnati Cinci./N. Kentucky - ONT Ontario

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 12/3

7:28 am-12:39 pm

1 stop8h 11m

Ontario

Mon 12/7

10:30 pm-10:38 am

1 stop9h 08m

$329

CincinnatiOntario

CVG Cincinnati Cinci./N. Kentucky - ONT Ontario

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 12/12

7:26 am-12:38 pm

1 stop8h 12m

Ontario

Sat 1/9

1:24 pm-10:59 pm

1 stop6h 35m

$329

Quickest round-trip

CincinnatiOntario

CVG Cincinnati Cinci./N. Kentucky - ONT Ontario

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 12/10

6:00 am-11:07 am

1 stop8h 07m

Ontario

Tue 1/12

6:00 am-3:09 pm

1 stop6h 09m

$329

CincinnatiOntario

CVG Cincinnati Cinci./N. Kentucky - ONT Ontario

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 12/15

1:54 pm-8:58 pm

1 stop10h 04m

Ontario

Tue 1/12

12:00 pm-9:55 pm

1 stop6h 55m

$329

CincinnatiOntario

CVG Cincinnati Cinci./N. Kentucky - ONT Ontario

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 12/12

5:12 pm-9:59 pm

1 stop7h 47m

Ontario

Sat 1/9

5:00 am-7:18 pm

2 stops11h 18m

$334

CincinnatiOntario

CVG Cincinnati Cinci./N. Kentucky - ONT Ontario

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 12/12

7:15 am-12:34 pm

2 stops8h 19m

Ontario

Sat 1/9

6:00 am-7:18 pm

2 stops10h 18m

$358

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

Other information

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 $354 to $537.
The lowest price recently found on this route was $167.

What is the cheapest month to fly to Ontario?

In general, January 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 $336. If you aren’t able to travel during the month of January, then book flights to Ontario from Cincinnati during July instead. Flights to Ontario in July, while not as cheap as those in January, still average around $358.

How have Cincinnati to Ontario flight prices changed over time?

As of October 2026, prices for Cincinnati to Ontario flights are approximately 136% more expensive 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

Best Price Found	$84
Fastest flight time	6h 53m
Direct flights	None

The best one-way flight to Ontario from Cincinnati in the past 72 hours is $84. The best round-trip flight deal from Cincinnati to Ontario found on momondo in the last 72 hours is $167.

The fastest flight from Cincinnati to Ontario takes 6h 53m

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 53m.
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 October 2026, there are 4 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 American Airlines (36% of total bookings). The next most popular airlines are Frontier (30%), Delta (21%), and United Airlines (14%).

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 $208	Free Cancellation	Rating 5.5 2,515 reviews	Search Frontier flights
Delta	PriceFrom $277	Free Cancellation	Rating 7.8 8,681 reviews	Search Delta flights
American Airlines	PriceFrom $318	Free Cancellation	Rating 7.0 12,196 reviews	Search American Airlines flights
United Airlines	PriceFrom $373	Free Cancellation	Rating 7.3 10,444 reviews	Search United Airlines flights

United Airlines Flights From Cincinnati to Ontario
United Airlines flight deals from Cincinnati to Ontario start from $373 round-trip. Over the 4 United Airlines flights for this route in a normal week, average airfare is usually $411 round-trip - but some users have found much cheaper deals with momondo.

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 $84

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 12/12. 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 Cincinnati to Ontario

Our best Frontier deals on Cincinnati to Ontario flight tickets

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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?

How many flights depart from Cincinnati to Ontario on average per week?

When to book flights from Cincinnati to Ontario

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

Best Price Found

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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