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Cheap flights from Cincinnati to Los Angeles from $77

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 2/20. 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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0 bags

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Find the cheapest flights from Cincinnati to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
2:11 pm - 7:10 pm
CVG
-
ONT
7h 59m
1 stop
Frontier Logo
2:08 pm - 11:42 pm
ONT
-
CVG
6h 34m
1 stop
$180Frontier
Mon, Feb 9 - Thu, Feb 12
Frontier Logo
2:10 pm - 2:41 pm
CVG
-
ONT
27h 31m
1 stop
Frontier Logo
7:17 pm - 11:59 pm
ONT
-
CVG
25h 42m
1 stop
$199Frontier
Sun, Feb 8 - Wed, Feb 11
Frontier Logo
7:00 am - 11:59 pm
CVG
-
ONT
19h 59m
1 stop
Frontier Logo
2:06 pm - 12:59 am
ONT
-
CVG
7h 53m
1 stop
$201Frontier
Thu, Feb 19 - Mon, Feb 23
Frontier Logo
7:00 am - 11:59 pm
CVG
-
ONT
19h 59m
1 stop
Frontier Logo
7:22 pm - 12:22 am
ONT
-
CVG
26h 00m
1 stop
$202Frontier
Mon, Feb 23 - Thu, Feb 26
Frontier Logo
6:42 pm - 11:59 pm
CVG
-
ONT
32h 17m
2 stops
Frontier Logo
2:06 pm - 12:59 am
ONT
-
CVG
7h 53m
1 stop
$207Frontier
Thu, Feb 19 - Mon, Feb 23
Frontier Logo
7:20 am - 11:59 pm
CVG
-
ONT
19h 39m
1 stop
Frontier Logo
10:03 pm - 12:42 pm
ONT
-
CVG
11h 39m
1 stop
$210Frontier
Wed, Mar 18 - Wed, Mar 25
Frontier Logo
7:20 am - 11:59 pm
CVG
-
ONT
19h 39m
1 stop
Frontier Logo
6:20 am - 2:22 pm
ONT
-
CVG
29h 02m
1 stop
$214Frontier
Tue, Mar 24 - Wed, Apr 1
Frontier Logo
1:45 pm - 12:20 am
CVG
-
ONT
13h 35m
1 stop
Frontier Logo
6:20 am - 8:53 pm
ONT
-
CVG
11h 33m
1 stop
$215Frontier
Thu, Feb 5 - Fri, Feb 6
Frontier Logo
7:00 am - 11:59 pm
CVG
-
ONT
19h 59m
1 stop
Frontier Logo
7:22 pm - 12:22 am
ONT
-
CVG
26h 00m
1 stop
$216Frontier
Fri, Feb 20 - Thu, Feb 26
Frontier Logo
7:20 am - 11:59 pm
CVG
-
ONT
19h 39m
1 stop
Frontier Logo
10:03 pm - 12:42 pm
ONT
-
CVG
11h 39m
1 stop
$220Frontier
Tue, Mar 17 - Wed, Mar 25

Frontier flights from Cincinnati to Ontario

Our best Frontier deals on Cincinnati to Ontario flight tickets
Frontier
Feb 9
CVG2:11 pmCincinnati Cinci./N. Kentucky
7h 59m
1 stop
ONT7:10 pmOntario
Feb 12
ONT2:08 pmOntario
6h 34m
1 stop
CVG11:42 pmCincinnati Cinci./N. Kentucky
$180
Frontier
Feb 8
CVG2:10 pmCincinnati Cinci./N. Kentucky
27h 31m
1 stop
ONT2:41 pmOntario
Feb 11
ONT7:17 pmOntario
25h 42m
1 stop
CVG11:59 pmCincinnati Cinci./N. Kentucky
$199
Frontier
Feb 19
CVG7:00 amCincinnati Cinci./N. Kentucky
19h 59m
1 stop
ONT11:59 pmOntario
Feb 23
ONT2:06 pmOntario
7h 53m
1 stop
CVG12:59 amCincinnati Cinci./N. Kentucky
$201

Delta flights from Cincinnati to Ontario

Our best Delta deals on Cincinnati to Ontario flight tickets
Delta
Mar 24
CVG5:53 amCincinnati Cinci./N. Kentucky
8h 54m
1 stop
ONT11:47 amOntario
Mar 31
ONT6:00 amOntario
10h 04m
1 stop
CVG7:04 pmCincinnati Cinci./N. Kentucky
$277
Delta
Feb 3
CVG6:42 amCincinnati Cinci./N. Kentucky
17h 23m
2 stops
ONT9:05 pmOntario
Feb 8
ONT10:30 pmOntario
7h 23m
1 stop
CVG8:53 amCincinnati Cinci./N. Kentucky
$445
Delta
Jan 28
CVG6:42 amCincinnati Cinci./N. Kentucky
17h 23m
2 stops
ONT9:05 pmOntario
Feb 3
ONT10:30 pmOntario
15h 39m
2 stops
CVG5:09 pmCincinnati Cinci./N. Kentucky
$526

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 January 20, 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

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 2/9

2:11 pm-7:10 pm

1 stop7h 59m

Ontario

Thu 2/12

2:08 pm-11:42 pm

1 stop6h 34m

$180

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sun 2/8

2:10 pm-2:41 pm

1 stop27h 31m

Ontario

Wed 2/11

7:17 pm-11:59 pm

1 stop25h 42m

$199

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 2/19

7:00 am-11:59 pm

1 stop19h 59m

Ontario

Mon 2/23

2:06 pm-12:59 am

1 stop7h 53m

$201

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 2/23

7:00 am-11:59 pm

1 stop19h 59m

Ontario

Thu 2/26

7:22 pm-12:22 am

1 stop26h 00m

$202

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 2/19

6:42 pm-11:59 pm

2 stops32h 17m

Ontario

Mon 2/23

2:06 pm-12:59 am

1 stop7h 53m

$207

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Wed 3/18

7:20 am-11:59 pm

1 stop19h 39m

Ontario

Wed 3/25

10:03 pm-12:42 pm

1 stop11h 39m

$210

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 3/24

7:20 am-11:59 pm

1 stop19h 39m

Ontario

Wed 4/1

6:20 am-2:22 pm

1 stop29h 02m

$214

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 2/5

1:45 pm-12:20 am

1 stop13h 35m

Ontario

Fri 2/6

6:20 am-8:53 pm

1 stop11h 33m

$215

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Fri 2/20

7:00 am-11:59 pm

1 stop19h 59m

Ontario

Thu 2/26

7:22 pm-12:22 am

1 stop26h 00m

$216

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 3/17

7:20 am-11:59 pm

1 stop19h 39m

Ontario

Wed 3/25

10:03 pm-12:42 pm

1 stop11h 39m

$220

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 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 $319. If you aren’t able to travel during the month of August, then book flights to Ontario from Cincinnati during September instead. Flights to Ontario in September, while not as cheap as those in August, still average around $331.

How have Cincinnati to Ontario flight prices changed over time?

As of January 2026, prices for Cincinnati to Ontario flights are approximately 91% 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 45m

Direct flights

None
The fastest flight from Cincinnati to Ontario takes 6h 45m
There are no direct flights from Cincinnati to Ontario. There are no popular flight routes from Cincinnati to Ontario.
Search flight deals

  • 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 45m.

  • 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 $137Free CancellationRating
5.7
3,056 reviews
Search Frontier flights
American AirlinesPriceFrom $246Free CancellationRating
7.2
11,164 reviews
Search American Airlines flights
DeltaPriceFrom $312Free CancellationRating
7.9
8,076 reviews
Search Delta flights
United AirlinesPriceFrom $315Free CancellationRating
7.4
9,180 reviews
Search United Airlines flights
SouthwestPriceFrom $321Free CancellationRating
8.0
4,267 reviews
Search Southwest 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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