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Cheap flights from Cincinnati to Los Angeles from $86

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 5/23. 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
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
8:40 pm - 7:32 pm
CVG
-
ONT
25h 52m
1 stop
Frontier Logo
6:00 am - 10:44 am
ONT
-
CVG
25h 44m
1 stop
$193Frontier
Sun, May 10 - Sat, May 16
Frontier Logo
8:40 pm - 3:44 pm
CVG
-
ONT
22h 04m
1 stop
Frontier Logo
1:33 pm - 7:47 pm
ONT
-
CVG
27h 14m
1 stop
$196Frontier
Mon, May 18 - Wed, Jun 17
Frontier Logo
8:36 pm - 10:05 am
CVG
-
ONT
16h 29m
1 stop
Frontier Logo
6:00 am - 7:31 pm
ONT
-
CVG
10h 31m
1 stop
$205Frontier
Tue, May 26 - Sun, May 31
Frontier Logo
8:36 pm - 10:05 am
CVG
-
ONT
16h 29m
1 stop
Frontier Logo
3:34 pm - 7:47 pm
ONT
-
CVG
25h 13m
1 stop
$210Frontier
Fri, Jun 5 - Wed, Jun 10
Frontier Logo
8:40 pm - 3:44 pm
CVG
-
ONT
22h 04m
1 stop
Frontier Logo
4:04 pm - 7:35 pm
ONT
-
CVG
24h 31m
1 stop
$211Frontier
Mon, May 11 - Thu, May 14
Frontier Logo
8:40 pm - 3:44 pm
CVG
-
ONT
22h 04m
1 stop
Frontier Logo
3:30 pm - 7:35 pm
ONT
-
CVG
25h 05m
1 stop
$212Frontier
Mon, Jun 1 - Sun, Jun 7
Frontier Logo
12:50 pm - 10:05 am
CVG
-
ONT
24h 15m
1 stop
Frontier Logo
4:39 pm - 7:35 pm
ONT
-
CVG
23h 56m
1 stop
$216Frontier
Tue, May 12 - Wed, May 13
Frontier Logo
8:40 pm - 3:44 pm
CVG
-
ONT
22h 04m
1 stop
Frontier Logo
3:30 pm - 7:35 pm
ONT
-
CVG
25h 05m
1 stop
$221Frontier
Mon, Jun 1 - Sun, Jun 7
Frontier Logo
8:36 pm - 10:05 am
CVG
-
ONT
16h 29m
1 stop
Frontier Logo
3:40 pm - 7:48 pm
ONT
-
CVG
25h 08m
1 stop
$224Frontier
Mon, Jun 8 - Mon, Aug 10
Frontier Logo
1:51 pm - 7:11 pm
CVG
-
ONT
8h 20m
1 stop
Frontier Logo
10:50 am - 10:44 am
ONT
-
CVG
20h 54m
1 stop
$225Frontier
Sun, May 10 - Sat, May 16

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Frontier flights from Cincinnati to Ontario

Our best Frontier deals on Cincinnati to Ontario flight tickets
Frontier
May 18
CVG8:40 pmCincinnati Cinci./N. Kentucky
22h 04m
1 stop
ONT3:44 pmOntario
Jun 17
ONT1:33 pmOntario
27h 14m
1 stop
CVG7:47 pmCincinnati Cinci./N. Kentucky
$196
Frontier
May 26
CVG8:36 pmCincinnati Cinci./N. Kentucky
16h 29m
1 stop
ONT10:05 amOntario
May 31
ONT6:00 amOntario
10h 31m
1 stop
CVG7:31 pmCincinnati Cinci./N. Kentucky
$205
Frontier
Jul 14
CVG8:15 pmCincinnati Cinci./N. Kentucky
6h 35m
1 stop
ONT11:50 pmOntario
Jul 21
ONT6:00 amOntario
10h 03m
1 stop
CVG7:03 pmCincinnati Cinci./N. Kentucky
$210

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 April 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

Sun 5/10

8:40 pm-7:32 pm

1 stop25h 52m

Ontario

Sat 5/16

6:00 am-10:44 am

1 stop25h 44m

$193

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 5/18

8:40 pm-3:44 pm

1 stop22h 04m

Ontario

Wed 6/17

1:33 pm-7:47 pm

1 stop27h 14m

$196
Quickest round-trip

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 5/26

8:36 pm-10:05 am

1 stop16h 29m

Ontario

Sun 5/31

6:00 am-7:31 pm

1 stop10h 31m

$205

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Fri 6/5

8:36 pm-10:05 am

1 stop16h 29m

Ontario

Wed 6/10

3:34 pm-7:47 pm

1 stop25h 13m

$210

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 5/11

8:40 pm-3:44 pm

1 stop22h 04m

Ontario

Thu 5/14

4:04 pm-7:35 pm

1 stop24h 31m

$211

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 6/1

8:40 pm-3:44 pm

1 stop22h 04m

Ontario

Sun 6/7

3:30 pm-7:35 pm

1 stop25h 05m

$212

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 5/12

12:50 pm-10:05 am

1 stop24h 15m

Ontario

Wed 5/13

4:39 pm-7:35 pm

1 stop23h 56m

$216

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 6/1

8:40 pm-3:44 pm

1 stop22h 04m

Ontario

Sun 6/7

3:30 pm-7:35 pm

1 stop25h 05m

$221

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 6/8

8:36 pm-10:05 am

1 stop16h 29m

Ontario

Mon 8/10

3:40 pm-7:48 pm

1 stop25h 08m

$224

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sun 5/10

1:51 pm-7:11 pm

1 stop8h 20m

Ontario

Sat 5/16

10:50 am-10:44 am

1 stop20h 54m

$225

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, 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 April 2026, prices for Cincinnati to Ontario flights are approximately 42% 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 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.
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 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?

  • 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
2,969 reviews
Search Frontier flights
American AirlinesPriceFrom $215Free CancellationRating
7.1
11,681 reviews
Search American Airlines flights
DeltaPriceFrom $312Free CancellationRating
7.9
8,463 reviews
Search Delta flights
United AirlinesPriceFrom $316Free CancellationRating
7.4
9,677 reviews
Search United Airlines 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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