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Cheap flights from Cincinnati to Los Angeles from $84

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 3/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
6:42 pm - 7:26 am
CVG
-
ONT
15h 44m
1 stop
Frontier Logo
2:06 pm - 12:59 am
ONT
-
CVG
7h 53m
1 stop
$195Frontier
Fri, Feb 27 - Mon, Mar 2
Frontier Logo
1:45 pm - 12:20 am
CVG
-
ONT
13h 35m
1 stop
Frontier Logo
2:06 pm - 12:59 am
ONT
-
CVG
7h 53m
1 stop
$201Frontier
Mon, Feb 2 - Thu, Feb 12
Frontier Logo
8:40 pm - 8:06 am
CVG
-
ONT
14h 26m
1 stop
Frontier Logo
2:06 pm - 6:01 am
ONT
-
CVG
12h 55m
1 stop
$205Frontier
Sun, Mar 8 - Thu, Mar 12
Frontier Logo
6:42 pm - 7:26 am
CVG
-
ONT
15h 44m
1 stop
Frontier Logo
7:17 pm - 11:12 am
ONT
-
CVG
12h 55m
2 stops
$210Frontier
Fri, Feb 27 - Wed, Mar 4
Frontier Logo
1:09 pm - 1:11 pm
CVG
-
ONT
27h 02m
1 stop
Frontier Logo
7:17 pm - 11:12 am
ONT
-
CVG
12h 55m
2 stops
$213Frontier
Sun, Mar 1 - Wed, Mar 4
Frontier Logo
3:43 pm - 7:59 am
CVG
-
ONT
19h 16m
2 stops
Frontier Logo
2:06 pm - 12:59 am
ONT
-
CVG
7h 53m
1 stop
$216Frontier
Sat, Feb 28 - Mon, Mar 2
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
$222Frontier
Mon, Feb 2 - Mon, Feb 9
Frontier Logo
8:30 am - 3:55 pm
CVG
-
ONT
10h 25m
1 stop
Frontier Logo
10:03 pm - 12:42 pm
ONT
-
CVG
11h 39m
1 stop
$224Frontier
Thu, Mar 12 - Wed, Mar 25
Frontier Logo
1:09 pm - 9:29 pm
CVG
-
ONT
11h 20m
1 stop
Frontier Logo
2:06 pm - 12:59 am
ONT
-
CVG
7h 53m
1 stop
$230Frontier
Sun, Mar 1 - Mon, Mar 2
Frontier Logo
7:20 am - 11:59 pm
CVG
-
ONT
19h 39m
1 stop
Frontier Logo
6:15 am - 2:24 pm
ONT
-
CVG
29h 09m
1 stop
$231Frontier
Tue, Mar 24 - Mon, Mar 30

Frontier flights from Cincinnati to Ontario

Our best Frontier deals on Cincinnati to Ontario flight tickets
Frontier
Feb 27
CVG6:42 pmCincinnati Cinci./N. Kentucky
15h 44m
1 stop
ONT7:26 amOntario
Mar 2
ONT2:06 pmOntario
7h 53m
1 stop
CVG12:59 amCincinnati Cinci./N. Kentucky
$195
Frontier
Mar 8
CVG8:40 pmCincinnati Cinci./N. Kentucky
14h 26m
1 stop
ONT8:06 amOntario
Mar 12
ONT2:06 pmOntario
12h 55m
1 stop
CVG6:01 amCincinnati Cinci./N. Kentucky
$205
Frontier
Feb 27
CVG6:42 pmCincinnati Cinci./N. Kentucky
15h 44m
1 stop
ONT7:26 amOntario
Mar 4
ONT7:17 pmOntario
12h 55m
2 stops
CVG11:12 amCincinnati Cinci./N. Kentucky
$210

United Airlines flights from Cincinnati to Ontario

Our best United Airlines deals on Cincinnati to Ontario flight tickets
United Airlines
Feb 11
CVG3:29 pmCincinnati Cinci./N. Kentucky
8h 29m
1 stop
ONT8:58 pmOntario
Feb 18
ONT5:00 amOntario
6h 15m
1 stop
CVG2:15 pmCincinnati Cinci./N. Kentucky
$412
United Airlines
Feb 11
CVG7:00 amCincinnati Cinci./N. Kentucky
8h 47m
2 stops
ONT12:47 pmOntario
Feb 18
ONT6:37 pmOntario
12h 01m
2 stops
CVG9:38 amCincinnati Cinci./N. Kentucky
$447
United Airlines
Feb 11
CVG11:15 amCincinnati Cinci./N. Kentucky
13h 43m
2 stops
ONT9:58 pmOntario
Feb 18
ONT6:37 pmOntario
15h 40m
3 stops
CVG1:17 pmCincinnati Cinci./N. Kentucky
$558

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 28, 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

Fri 2/27

6:42 pm-7:26 am

1 stop15h 44m

Ontario

Mon 3/2

2:06 pm-12:59 am

1 stop7h 53m

$195

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 2/2

1:45 pm-12:20 am

1 stop13h 35m

Ontario

Thu 2/12

2:06 pm-12:59 am

1 stop7h 53m

$201

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sun 3/8

8:40 pm-8:06 am

1 stop14h 26m

Ontario

Thu 3/12

2:06 pm-6:01 am

1 stop12h 55m

$205

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Fri 2/27

6:42 pm-7:26 am

1 stop15h 44m

Ontario

Wed 3/4

7:17 pm-11:12 am

2 stops12h 55m

$210

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sun 3/1

1:09 pm-1:11 pm

1 stop27h 02m

Ontario

Wed 3/4

7:17 pm-11:12 am

2 stops12h 55m

$213

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 2/28

3:43 pm-7:59 am

2 stops19h 16m

Ontario

Mon 3/2

2:06 pm-12:59 am

1 stop7h 53m

$216

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 2/2

1:45 pm-12:20 am

1 stop13h 35m

Ontario

Mon 2/9

6:20 am-8:53 pm

1 stop11h 33m

$222

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 3/12

8:30 am-3:55 pm

1 stop10h 25m

Ontario

Wed 3/25

10:03 pm-12:42 pm

1 stop11h 39m

$224

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sun 3/1

1:09 pm-9:29 pm

1 stop11h 20m

Ontario

Mon 3/2

2:06 pm-12:59 am

1 stop7h 53m

$230

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 3/24

7:20 am-11:59 pm

1 stop19h 39m

Ontario

Mon 3/30

6:15 am-2:24 pm

1 stop29h 09m

$231

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 far in advance should I book a flight to Ontario?

You are more likely to see cheaper flights to Ontario from Cincinnati when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $388 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Cincinnati for as low as $252 on momondo.

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 49m

Direct flights

None
The fastest flight from Cincinnati to Ontario takes 6h 49m
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 49m.

  • 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
11,205 reviews
Search American Airlines flights
United AirlinesPriceFrom $315Free CancellationRating
7.4
9,215 reviews
Search United Airlines flights
SouthwestPriceFrom $321Free CancellationRating
8.0
4,267 reviews
Search Southwest flights
DeltaPriceFrom $325Free CancellationRating
7.9
8,128 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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