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Cheap flights from Cincinnati to Los Angeles 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 Cincinnati to Los Angeles departing on 8/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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
8:34 pm - 10:04 am
CVG
-
ONT
16h 30m
1 stop
Frontier Logo
10:49 am - 7:35 pm
ONT
-
CVG
5h 46m
1 stop
$238Frontier
Sun, Aug 16 - Thu, Aug 20
Frontier Logo
8:30 pm - 11:50 pm
CVG
-
ONT
6h 20m
1 stop
Frontier Logo
7:56 pm - 11:20 am
ONT
-
CVG
12h 24m
1 stop
$248Frontier
Fri, Sep 4 - Tue, Sep 8
Frontier Logo
8:34 pm - 10:04 am
CVG
-
ONT
16h 30m
1 stop
Frontier Logo
11:15 am - 8:25 pm
ONT
-
CVG
6h 10m
1 stop
$255Frontier
Sun, Aug 16 - Thu, Aug 20
Frontier Logo
8:26 pm - 11:50 pm
CVG
-
ONT
6h 24m
1 stop
Frontier Logo
6:00 am - 7:25 pm
ONT
-
CVG
10h 25m
1 stop
$258Frontier
Sat, Aug 15 - Wed, Aug 19
Frontier Logo
8:34 pm - 11:50 pm
CVG
-
ONT
6h 16m
1 stop
Frontier Logo
6:00 am - 7:29 pm
ONT
-
CVG
10h 29m
1 stop
$261Frontier
Mon, Aug 10 - Sat, Aug 15
Frontier Logo
8:34 pm - 11:50 pm
CVG
-
ONT
6h 16m
1 stop
Frontier Logo
6:00 am - 7:29 pm
ONT
-
CVG
10h 29m
1 stop
$264Frontier
Wed, Aug 5 - Wed, Aug 12
Frontier Logo
9:27 pm - 3:54 pm
CVG
-
ONT
21h 27m
1 stop
Frontier Logo
3:40 pm - 8:15 pm
ONT
-
CVG
25h 35m
1 stop
$268Frontier
Thu, Aug 13 - Tue, Aug 18
Frontier Logo
9:20 pm - 9:27 pm
CVG
-
ONT
27h 07m
1 stop
Frontier Logo
6:00 am - 7:25 pm
ONT
-
CVG
10h 25m
1 stop
$271Frontier
Thu, Aug 20 - Mon, Aug 24
Frontier Logo
8:34 pm - 10:04 am
CVG
-
ONT
16h 30m
1 stop
Frontier Logo
3:40 pm - 11:21 am
ONT
-
CVG
16h 41m
2 stops
$273Frontier
Sun, Aug 16 - Thu, Aug 20
Frontier Logo
9:27 pm - 3:54 pm
CVG
-
ONT
21h 27m
1 stop
Frontier Logo
3:40 pm - 8:15 pm
ONT
-
CVG
25h 35m
1 stop
$274Frontier
Thu, Aug 13 - Tue, Aug 18

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Frontier flights from Cincinnati to Ontario

Our best Frontier deals on Cincinnati to Ontario flight tickets
Frontier
Aug 16
CVG8:34 pmCincinnati Cinci./N. Kentucky
16h 30m
1 stop
ONT10:04 amOntario
Aug 20
ONT10:49 amOntario
5h 46m
1 stop
CVG7:35 pmCincinnati Cinci./N. Kentucky
$238
Frontier
Sep 4
CVG8:30 pmCincinnati Cinci./N. Kentucky
6h 20m
1 stop
ONT11:50 pmOntario
Sep 8
ONT7:56 pmOntario
12h 24m
1 stop
CVG11:20 amCincinnati Cinci./N. Kentucky
$248
Frontier
Aug 16
CVG8:34 pmCincinnati Cinci./N. Kentucky
16h 30m
1 stop
ONT10:04 amOntario
Aug 20
ONT11:15 amOntario
6h 10m
1 stop
CVG8:25 pmCincinnati Cinci./N. Kentucky
$255

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 19, 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

Sun 8/16

8:34 pm-10:04 am

1 stop16h 30m

Ontario

Thu 8/20

10:49 am-7:35 pm

1 stop5h 46m

$238

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Fri 9/4

8:30 pm-11:50 pm

1 stop6h 20m

Ontario

Tue 9/8

7:56 pm-11:20 am

1 stop12h 24m

$248

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sun 8/16

8:34 pm-10:04 am

1 stop16h 30m

Ontario

Thu 8/20

11:15 am-8:25 pm

1 stop6h 10m

$255

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 8/15

8:26 pm-11:50 pm

1 stop6h 24m

Ontario

Wed 8/19

6:00 am-7:25 pm

1 stop10h 25m

$258
Quickest round-trip

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 8/10

8:34 pm-11:50 pm

1 stop6h 16m

Ontario

Sat 8/15

6:00 am-7:29 pm

1 stop10h 29m

$261

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Wed 8/5

8:34 pm-11:50 pm

1 stop6h 16m

Ontario

Wed 8/12

6:00 am-7:29 pm

1 stop10h 29m

$264

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 8/13

9:27 pm-3:54 pm

1 stop21h 27m

Ontario

Tue 8/18

3:40 pm-8:15 pm

1 stop25h 35m

$268

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 8/20

9:20 pm-9:27 pm

1 stop27h 07m

Ontario

Mon 8/24

6:00 am-7:25 pm

1 stop10h 25m

$271

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sun 8/16

8:34 pm-10:04 am

1 stop16h 30m

Ontario

Thu 8/20

3:40 pm-11:21 am

2 stops16h 41m

$273

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 8/13

9:27 pm-3:54 pm

1 stop21h 27m

Ontario

Tue 8/18

3:40 pm-8:15 pm

1 stop25h 35m

$274

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?

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 August instead. Flights to Ontario in August, while not as cheap as those in January, still average around $340.

How have Cincinnati to Ontario flight prices changed over time?

As of July 2026, prices for Cincinnati to Ontario flights are approximately 17% 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 14m

Direct flights

None
The fastest flight from Cincinnati to Ontario takes 6h 14m
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 14m.

  • 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
2,792 reviews
Search Frontier flights
American AirlinesPriceFrom $215Free CancellationRating
7.1
11,828 reviews
Search American Airlines flights
United AirlinesPriceFrom $316Free CancellationRating
7.4
10,006 reviews
Search United Airlines flights
SouthwestPriceFrom $318Free CancellationRating
8.0
4,243 reviews
Search Southwest flights
DeltaPriceFrom $337Free CancellationRating
7.8
8,478 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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