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Cheap flights from Cincinnati to Los Angeles from $123

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 8/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Cincinnati to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
5:16 pm - 11:47 pm
CVG
-
ONT
9h 31m
1 stop
Frontier Logo
6:15 am - 4:11 pm
ONT
-
CVG
6h 56m
1 stop
$245Frontier
Sat, Sep 12 - Sat, Sep 19
Frontier Logo
8:30 pm - 11:50 pm
CVG
-
ONT
6h 20m
1 stop
Frontier Logo
6:00 am - 7:25 pm
ONT
-
CVG
10h 25m
1 stop
$246Frontier
Mon, Aug 31 - Wed, Sep 2
Multiple Airlines Logo
8:39 am - 6:00 pm
CVG
-
ONT
12h 21m
1 stop
Multiple Airlines Logo
11:19 am - 8:21 pm
ONT
-
CVG
6h 02m
1 stop
$321Multiple Airlines
Sat, Oct 31 - Mon, Nov 2
Multiple Airlines Logo
8:39 am - 6:00 pm
CVG
-
ONT
12h 21m
1 stop
Multiple Airlines Logo
2:35 pm - 8:29 pm
ONT
-
CVG
26h 54m
1 stop
$337Multiple Airlines
Sat, Oct 31 - Mon, Nov 2
Delta Logo
7:35 pm - 11:58 pm
CVG
-
ONT
7h 23m
1 stop
Delta Logo
1:25 pm - 11:07 pm
ONT
-
CVG
6h 42m
1 stop
$385Delta
Tue, Dec 1 - Mon, Dec 7
Delta Logo
7:35 pm - 11:58 pm
CVG
-
ONT
7h 23m
1 stop
Delta Logo
6:00 am - 3:17 pm
ONT
-
CVG
6h 17m
1 stop
$385Delta
Tue, Dec 1 - Sat, Dec 5
American Airlines Logo
11:31 am - 6:15 pm
CVG
-
ONT
9h 44m
2 stops
American Airlines Logo
6:15 am - 4:50 pm
ONT
-
CVG
7h 35m
1 stop
$390American Airlines
Sat, Aug 15 - Tue, Aug 18
American Airlines Logo
11:31 am - 6:15 pm
CVG
-
ONT
9h 44m
2 stops
American Airlines Logo
12:33 pm - 11:22 pm
ONT
-
CVG
7h 49m
1 stop
$390American Airlines
Thu, Aug 20 - Mon, Aug 24
United Airlines Logo
2:05 pm - 8:53 pm
CVG
-
ONT
9h 48m
2 stops
United Airlines Logo
9:01 am - 10:32 pm
ONT
-
CVG
10h 31m
2 stops
$395United Airlines
Sat, Sep 12 - Wed, Sep 16
United Airlines Logo
2:03 pm - 8:51 pm
CVG
-
ONT
9h 48m
2 stops
United Airlines Logo
5:00 am - 4:57 pm
ONT
-
CVG
8h 57m
2 stops
$395United Airlines
Sat, Oct 31 - Mon, Nov 2

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Frontier flights from Cincinnati to Ontario

Our best Frontier deals on Cincinnati to Ontario flight tickets
Frontier
Sep 12
CVG5:16 pmCincinnati Cinci./N. Kentucky
9h 31m
1 stop
ONT11:47 pmOntario
Sep 19
ONT6:15 amOntario
6h 56m
1 stop
CVG4:11 pmCincinnati Cinci./N. Kentucky
$245
Frontier
Sep 21
CVG5:16 pmCincinnati Cinci./N. Kentucky
9h 31m
1 stop
ONT11:47 pmOntario
Oct 3
ONT6:15 amOntario
6h 56m
1 stop
CVG4:11 pmCincinnati Cinci./N. Kentucky
$246
Frontier
Sep 14
CVG12:43 pmCincinnati Cinci./N. Kentucky
38h 04m
2 stops
ONT11:47 pmOntario
Sep 23
ONT6:15 amOntario
6h 56m
1 stop
CVG4:11 pmCincinnati Cinci./N. Kentucky
$250

momondo Fare Finder

 
Customize your flight search to find flights from Cincinnati to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 30, 2026.
Use the filters below to find and compare flights from Cincinnati to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 9/12

5:16 pm-11:47 pm

1 stop9h 31m

Ontario

Sat 9/19

6:15 am-4:11 pm

1 stop6h 56m

$245

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 8/31

8:30 pm-11:50 pm

1 stop6h 20m

Ontario

Wed 9/2

6:00 am-7:25 pm

1 stop10h 25m

$246

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 10/31

8:39 am-6:00 pm

1 stop12h 21m

Ontario

Mon 11/2

11:19 am-8:21 pm

1 stop6h 02m

$321

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 10/31

8:39 am-6:00 pm

1 stop12h 21m

Ontario

Mon 11/2

2:35 pm-8:29 pm

1 stop26h 54m

$337

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 12/1

7:35 pm-11:58 pm

1 stop7h 23m

Ontario

Mon 12/7

1:25 pm-11:07 pm

1 stop6h 42m

$385
Quickest round-trip

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 12/1

7:35 pm-11:58 pm

1 stop7h 23m

Ontario

Sat 12/5

6:00 am-3:17 pm

1 stop6h 17m

$385

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 8/15

11:31 am-6:15 pm

2 stops9h 44m

Ontario

Tue 8/18

6:15 am-4:50 pm

1 stop7h 35m

$390

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 8/20

11:31 am-6:15 pm

2 stops9h 44m

Ontario

Mon 8/24

12:33 pm-11:22 pm

1 stop7h 49m

$390

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 9/12

2:05 pm-8:53 pm

2 stops9h 48m

Ontario

Wed 9/16

9:01 am-10:32 pm

2 stops10h 31m

$395

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 10/31

2:03 pm-8:51 pm

2 stops9h 48m

Ontario

Mon 11/2

5:00 am-4:57 pm

2 stops8h 57m

$395

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Los Angeles from

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

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 $293 to $476.
The lowest price recently found on this route was $245.

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 July 2026, prices for Cincinnati to Ontario flights are approximately 54% 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

Fastest flight time

6h 20m

Direct flights

None
The fastest flight from Cincinnati to Ontario takes 6h 20m
There are no direct flights from Cincinnati to Ontario. There are no popular flight routes from Cincinnati to Ontario.
Search flight deals

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 20m.

  • 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?

  • 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?

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
FrontierPriceFrom $157Free CancellationRating
5.6
2,746 reviews
Search Frontier flights
United AirlinesPriceFrom $316Free CancellationRating
7.4
10,049 reviews
Search United Airlines flights
American AirlinesPriceFrom $318Free CancellationRating
7.1
11,845 reviews
Search American Airlines flights
DeltaPriceFrom $337Free CancellationRating
7.8
8,495 reviews
Search Delta 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.

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