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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 10/17. 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 - 11:50 pm
CVG
-
ONT
6h 16m
1 stop
Frontier Logo
6:00 am - 7:35 pm
ONT
-
CVG
10h 35m
1 stop
$248Frontier
Mon, Aug 17 - Tue, Aug 25
Frontier Logo
8:36 pm - 11:50 pm
CVG
-
ONT
6h 14m
1 stop
Frontier Logo
6:00 am - 7:29 pm
ONT
-
CVG
10h 29m
1 stop
$253Frontier
Wed, Jul 29 - Wed, Aug 5
Frontier Logo
8:26 pm - 11:50 pm
CVG
-
ONT
6h 24m
1 stop
Frontier Logo
6:00 am - 7:29 pm
ONT
-
CVG
10h 29m
1 stop
$258Frontier
Sat, Aug 1 - Wed, Aug 5
Frontier Logo
8:26 pm - 11:50 pm
CVG
-
ONT
6h 24m
1 stop
Frontier Logo
6:00 am - 7:29 pm
ONT
-
CVG
10h 29m
1 stop
$261Frontier
Sat, Aug 1 - Mon, Aug 10
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
$264Frontier
Thu, Aug 20 - Mon, Aug 24
Frontier Logo
8:36 pm - 10:04 am
CVG
-
ONT
16h 28m
1 stop
Frontier Logo
1:38 pm - 8:25 pm
ONT
-
CVG
27h 47m
1 stop
$268Frontier
Wed, Jul 22 - Wed, Jul 29
Multiple Airlines Logo
8:26 pm - 10:04 am
CVG
-
ONT
16h 38m
1 stop
Multiple Airlines Logo
6:00 am - 12:31 pm
ONT
-
CVG
27h 31m
1 stop
$272Multiple Airlines
Sat, Jul 25 - Wed, Jul 29
Frontier Logo
12:25 pm - 11:55 pm
CVG
-
ONT
14h 30m
1 stop
Frontier Logo
11:38 am - 12:29 am
ONT
-
CVG
9h 51m
1 stop
$274Frontier
Sat, Oct 3 - Sat, Oct 10
Frontier Logo
8:30 pm - 11:50 pm
CVG
-
ONT
6h 20m
1 stop
Frontier Logo
6:00 am - 7:35 pm
ONT
-
CVG
10h 35m
1 stop
$277Frontier
Sat, Sep 5 - Tue, Sep 8
Frontier Logo
8:34 pm - 11:50 pm
CVG
-
ONT
6h 16m
1 stop
Frontier Logo
6:00 am - 7:25 pm
ONT
-
CVG
10h 25m
1 stop
$278Frontier
Wed, Aug 12 - Sat, Aug 22

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Frontier flights from Cincinnati to Ontario

Our best Frontier deals on Cincinnati to Ontario flight tickets
Frontier
Aug 17
CVG8:34 pmCincinnati Cinci./N. Kentucky
6h 16m
1 stop
ONT11:50 pmOntario
Aug 24
ONT6:00 amOntario
10h 25m
1 stop
CVG7:25 pmCincinnati Cinci./N. Kentucky
$248
Frontier
Jul 29
CVG8:36 pmCincinnati Cinci./N. Kentucky
6h 14m
1 stop
ONT11:50 pmOntario
Aug 5
ONT6:00 amOntario
10h 29m
1 stop
CVG7:29 pmCincinnati Cinci./N. Kentucky
$253
Frontier
Aug 1
CVG8:26 pmCincinnati Cinci./N. Kentucky
6h 24m
1 stop
ONT11:50 pmOntario
Aug 5
ONT6:00 amOntario
10h 29m
1 stop
CVG7:29 pmCincinnati Cinci./N. Kentucky
$258

American Airlines flights from Cincinnati to Ontario

Our best American Airlines deals on Cincinnati to Ontario flight tickets
American Airlines
Jul 14
CVG11:19 amCincinnati Cinci./N. Kentucky
9h 59m
2 stops
ONT6:18 pmOntario
Jul 22
ONT7:15 pmOntario
10h 17m
2 stops
CVG8:32 amCincinnati Cinci./N. Kentucky
$502
American Airlines
Jul 12
CVG8:01 pmCincinnati Cinci./N. Kentucky
6h 58m
1 stop
ONT11:59 pmOntario
Jul 19
ONT7:15 pmOntario
12h 10m
2 stops
CVG10:25 amCincinnati Cinci./N. Kentucky
$688
American Airlines
Jul 14
CVG12:04 pmCincinnati Cinci./N. Kentucky
9h 14m
2 stops
ONT6:18 pmOntario
Jul 19
ONT7:15 pmOntario
12h 10m
2 stops
CVG10:25 amCincinnati Cinci./N. Kentucky
$693

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 1, 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

Mon 8/17

8:34 pm-11:50 pm

1 stop6h 16m

Ontario

Tue 8/25

6:00 am-7:35 pm

1 stop10h 35m

$248

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Wed 7/29

8:36 pm-11:50 pm

1 stop6h 14m

Ontario

Wed 8/5

6:00 am-7:29 pm

1 stop10h 29m

$253

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 8/1

8:26 pm-11:50 pm

1 stop6h 24m

Ontario

Wed 8/5

6:00 am-7:29 pm

1 stop10h 29m

$258

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 8/1

8:26 pm-11:50 pm

1 stop6h 24m

Ontario

Mon 8/10

6:00 am-7:29 pm

1 stop10h 29m

$261

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 8/20

8:30 pm-11:50 pm

1 stop6h 20m

Ontario

Mon 8/24

6:00 am-7:25 pm

1 stop10h 25m

$264

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Wed 7/22

8:36 pm-10:04 am

1 stop16h 28m

Ontario

Wed 7/29

1:38 pm-8:25 pm

1 stop27h 47m

$268

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 7/25

8:26 pm-10:04 am

1 stop16h 38m

Ontario

Wed 7/29

6:00 am-12:31 pm

1 stop27h 31m

$272

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 10/3

12:25 pm-11:55 pm

1 stop14h 30m

Ontario

Sat 10/10

11:38 am-12:29 am

1 stop9h 51m

$274

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 9/5

8:30 pm-11:50 pm

1 stop6h 20m

Ontario

Tue 9/8

6:00 am-7:35 pm

1 stop10h 35m

$277
Quickest round-trip

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Wed 8/12

8:34 pm-11:50 pm

1 stop6h 16m

Ontario

Sat 8/22

6:00 am-7:25 pm

1 stop10h 25m

$278

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, August 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 $316. If you aren’t able to travel during the month of August, then book flights to Ontario from Cincinnati during January instead. Flights to Ontario in January, while not as cheap as those in August, still average around $336.

How have Cincinnati to Ontario flight prices changed over time?

As of July 2026, prices for Cincinnati to Ontario flights are approximately 4% 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 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
2,849 reviews
Search Frontier flights
American AirlinesPriceFrom $215Free CancellationRating
7.1
11,765 reviews
Search American Airlines flights
United AirlinesPriceFrom $316Free CancellationRating
7.4
9,909 reviews
Search United Airlines flights
SouthwestPriceFrom $318Free CancellationRating
7.9
4,246 reviews
Search Southwest flights
DeltaPriceFrom $337Free CancellationRating
7.8
8,452 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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