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Cheap flights from Cincinnati to Los Angeles from $78

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 4/27. 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
1:09 pm - 5:48 pm
CVG
-
ONT
7h 39m
1 stop
Frontier Logo
2:06 pm - 12:59 am
ONT
-
CVG
7h 53m
1 stop
$179Frontier
Mon, Feb 23 - Mon, Mar 2
Frontier Logo
1:05 pm - 11:24 pm
CVG
-
ONT
13h 19m
1 stop
Frontier Logo
8:59 pm - 6:15 am
ONT
-
CVG
6h 16m
1 stop
$190Frontier
Thu, Apr 16 - Thu, Apr 23
Frontier Logo
1:09 pm - 5:48 pm
CVG
-
ONT
7h 39m
1 stop
Frontier Logo
2:08 pm - 11:42 pm
ONT
-
CVG
6h 34m
1 stop
$200Frontier
Mon, Feb 23 - 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
$201Frontier
Tue, Mar 10 - Wed, Mar 25
Frontier Logo
1:09 pm - 9:29 pm
CVG
-
ONT
11h 20m
1 stop
Frontier Logo
2:08 pm - 11:42 pm
ONT
-
CVG
6h 34m
1 stop
$204Frontier
Sun, Mar 1 - Thu, Mar 5
Frontier Logo
7:59 pm - 11:55 pm
CVG
-
ONT
6h 56m
1 stop
Frontier Logo
6:15 am - 7:23 pm
ONT
-
CVG
10h 08m
1 stop
$211Frontier
Thu, Apr 23 - Sun, Apr 26
Frontier Logo
7:00 am - 11:59 pm
CVG
-
ONT
19h 59m
1 stop
Frontier Logo
7:17 pm - 11:59 pm
ONT
-
CVG
25h 42m
1 stop
$214Frontier
Sun, Feb 22 - Wed, Feb 25
Frontier Logo
8:48 pm - 8:04 am
CVG
-
ONT
14h 16m
1 stop
Frontier Logo
6:15 am - 7:23 pm
ONT
-
CVG
10h 08m
1 stop
$222Frontier
Sun, Apr 19 - Sun, Apr 26
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
$224Frontier
Fri, Feb 27 - Mon, Mar 2
Frontier Logo
7:20 am - 11:59 pm
CVG
-
ONT
19h 39m
1 stop
Frontier Logo
11:17 am - 6:01 am
ONT
-
CVG
15h 44m
1 stop
$225Frontier
Tue, Mar 10 - Mon, Mar 16

Frontier flights from Cincinnati to Ontario

Our best Frontier deals on Cincinnati to Ontario flight tickets
Frontier
Feb 23
CVG1:09 pmCincinnati Cinci./N. Kentucky
7h 39m
1 stop
ONT5:48 pmOntario
Mar 2
ONT2:06 pmOntario
7h 53m
1 stop
CVG12:59 amCincinnati Cinci./N. Kentucky
$179
Frontier
Apr 16
CVG1:05 pmCincinnati Cinci./N. Kentucky
13h 19m
1 stop
ONT11:24 pmOntario
Apr 30
ONT6:15 amOntario
10h 08m
1 stop
CVG7:23 pmCincinnati Cinci./N. Kentucky
$190
Frontier
Mar 6
CVG11:58 amCincinnati Cinci./N. Kentucky
15h 01m
1 stop
ONT11:59 pmOntario
Mar 8
ONT6:15 amOntario
25h 33m
1 stop
CVG10:48 amCincinnati Cinci./N. Kentucky
$193

Delta flights from Cincinnati to Ontario

Our best Delta deals on Cincinnati to Ontario flight tickets
Delta
Feb 28
CVG8:12 amCincinnati Cinci./N. Kentucky
6h 55m
1 stop
ONT12:07 pmOntario
Mar 3
ONT10:20 pmOntario
7h 44m
1 stop
CVG9:04 amCincinnati Cinci./N. Kentucky
$277
Delta
Apr 14
CVG3:00 pmCincinnati Cinci./N. Kentucky
11h 44m
2 stops
ONT11:44 pmOntario
Apr 22
ONT1:29 pmOntario
6h 19m
1 stop
CVG10:48 pmCincinnati Cinci./N. Kentucky
$282

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 February 8, 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 2/23

1:09 pm-5:48 pm

1 stop7h 39m

Ontario

Mon 3/2

2:06 pm-12:59 am

1 stop7h 53m

$179

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 4/16

1:05 pm-11:24 pm

1 stop13h 19m

Ontario

Thu 4/23

8:59 pm-6:15 am

1 stop6h 16m

$190

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 2/23

1:09 pm-5:48 pm

1 stop7h 39m

Ontario

Thu 2/26

2:08 pm-11:42 pm

1 stop6h 34m

$200

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 3/10

7:20 am-11:59 pm

1 stop19h 39m

Ontario

Wed 3/25

10:03 pm-12:42 pm

1 stop11h 39m

$201

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sun 3/1

1:09 pm-9:29 pm

1 stop11h 20m

Ontario

Thu 3/5

2:08 pm-11:42 pm

1 stop6h 34m

$204

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 4/23

7:59 pm-11:55 pm

1 stop6h 56m

Ontario

Sun 4/26

6:15 am-7:23 pm

1 stop10h 08m

$211

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sun 2/22

7:00 am-11:59 pm

1 stop19h 59m

Ontario

Wed 2/25

7:17 pm-11:59 pm

1 stop25h 42m

$214

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sun 4/19

8:48 pm-8:04 am

1 stop14h 16m

Ontario

Sun 4/26

6:15 am-7:23 pm

1 stop10h 08m

$222

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Fri 2/27

7:00 am-11:59 pm

1 stop19h 59m

Ontario

Mon 3/2

2:06 pm-12:59 am

1 stop7h 53m

$224

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 3/10

7:20 am-11:59 pm

1 stop19h 39m

Ontario

Mon 3/16

11:17 am-6:01 am

1 stop15h 44m

$225

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 February 2026, prices for Cincinnati to Ontario flights are approximately 62% 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 39m

Direct flights

None
The fastest flight from Cincinnati to Ontario takes 6h 39m
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 39m.

  • 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 $140Free CancellationRating
5.7
3,052 reviews
Search Frontier flights
American AirlinesPriceFrom $246Free CancellationRating
7.2
11,249 reviews
Search American Airlines flights
DeltaPriceFrom $312Free CancellationRating
7.9
8,172 reviews
Search Delta flights
United AirlinesPriceFrom $316Free CancellationRating
7.4
9,254 reviews
Search United Airlines flights
SouthwestPriceFrom $318Free CancellationRating
8.0
4,280 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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