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Cheap flights from Cincinnati to Los Angeles from $72

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 5/8. 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
8:38 pm - 10:44 am
CVG
-
ONT
17h 06m
1 stop
Frontier Logo
12:59 am - 7:12 pm
ONT
-
CVG
15h 13m
1 stop
$190Frontier
Mon, Apr 20 - Thu, Apr 23
Frontier Logo
8:38 pm - 10:44 am
CVG
-
ONT
17h 06m
1 stop
Frontier Logo
11:47 am - 5:53 am
ONT
-
CVG
15h 06m
1 stop
$192Frontier
Fri, Apr 17 - Thu, Apr 23
Frontier Logo
7:35 am - 11:56 pm
CVG
-
ONT
19h 21m
1 stop
Frontier Logo
8:59 pm - 5:53 am
ONT
-
CVG
5h 54m
1 stop
$197Frontier
Mon, Apr 13 - Fri, Apr 17
Frontier Logo
1:10 pm - 11:58 pm
CVG
-
ONT
13h 48m
1 stop
Frontier Logo
12:59 am - 7:12 pm
ONT
-
CVG
15h 13m
1 stop
$201Frontier
Fri, Apr 24 - Sat, Apr 25
Frontier Logo
6:00 am - 3:34 pm
CVG
-
ONT
12h 34m
1 stop
Frontier Logo
8:20 pm - 5:53 am
ONT
-
CVG
6h 33m
1 stop
$211Frontier
Thu, Apr 30 - Fri, May 1
Frontier Logo
8:20 am - 11:59 pm
CVG
-
ONT
18h 39m
1 stop
Frontier Logo
10:03 pm - 12:42 pm
ONT
-
CVG
11h 39m
1 stop
$220Frontier
Sat, Mar 21 - Wed, Mar 25
Frontier Logo
6:00 am - 3:34 pm
CVG
-
ONT
12h 34m
1 stop
Frontier Logo
12:59 am - 8:24 pm
ONT
-
CVG
16h 25m
1 stop
$222Frontier
Thu, Apr 30 - Sun, May 3
Frontier Logo
1:10 pm - 11:58 pm
CVG
-
ONT
13h 48m
1 stop
Frontier Logo
8:59 pm - 5:53 am
ONT
-
CVG
5h 54m
1 stop
$232Frontier
Fri, Apr 17 - Mon, Apr 20
Frontier Logo
8:17 pm - 11:55 pm
CVG
-
ONT
30h 38m
1 stop
Frontier Logo
9:59 pm - 6:36 pm
ONT
-
CVG
17h 37m
2 stops
$235Frontier
Mon, Apr 20 - Fri, Apr 24
Frontier Logo
7:20 am - 11:56 pm
CVG
-
ONT
19h 36m
1 stop
Frontier Logo
10:03 pm - 6:03 am
ONT
-
CVG
29h 00m
1 stop
$238Frontier
Wed, Apr 1 - Wed, Apr 8

Frontier flights from Cincinnati to Ontario

Our best Frontier deals on Cincinnati to Ontario flight tickets
Frontier
Apr 20
CVG8:38 pmCincinnati Cinci./N. Kentucky
17h 06m
1 stop
ONT10:44 amOntario
Apr 23
ONT12:59 amOntario
15h 13m
1 stop
CVG7:12 pmCincinnati Cinci./N. Kentucky
$190
Frontier
Apr 17
CVG8:38 pmCincinnati Cinci./N. Kentucky
17h 06m
1 stop
ONT10:44 amOntario
Apr 23
ONT11:47 amOntario
15h 06m
1 stop
CVG5:53 amCincinnati Cinci./N. Kentucky
$192
Frontier
Apr 13
CVG7:35 amCincinnati Cinci./N. Kentucky
19h 21m
1 stop
ONT11:56 pmOntario
Apr 17
ONT8:59 pmOntario
5h 54m
1 stop
CVG5:53 amCincinnati Cinci./N. Kentucky
$197

Alaska Airlines flights from Cincinnati to Ontario

Our best Alaska Airlines deals on Cincinnati to Ontario flight tickets
Alaska Airlines
Apr 27
CVG6:58 pmCincinnati Cinci./N. Kentucky
17h 47m
1 stop
ONT9:45 amOntario
May 1
ONT3:26 pmOntario
23h 32m
1 stop
CVG5:58 pmCincinnati Cinci./N. Kentucky
$265
Alaska Airlines
Apr 16
CVG7:29 pmCincinnati Cinci./N. Kentucky
31h 30m
1 stop
ONT11:59 pmOntario
Apr 22
ONT6:00 amOntario
8h 58m
1 stop
CVG5:58 pmCincinnati Cinci./N. Kentucky
$274
Alaska Airlines
Apr 17
CVG7:29 pmCincinnati Cinci./N. Kentucky
31h 30m
1 stop
ONT11:59 pmOntario
Apr 21
ONT6:00 amOntario
9h 29m
1 stop
CVG6:29 pmCincinnati Cinci./N. Kentucky
$303

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 26, 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 4/20

8:38 pm-10:44 am

1 stop17h 06m

Ontario

Thu 4/23

12:59 am-7:12 pm

1 stop15h 13m

$190

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Fri 4/17

8:38 pm-10:44 am

1 stop17h 06m

Ontario

Thu 4/23

11:47 am-5:53 am

1 stop15h 06m

$192

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 4/13

7:35 am-11:56 pm

1 stop19h 21m

Ontario

Fri 4/17

8:59 pm-5:53 am

1 stop5h 54m

$197

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Fri 4/24

1:10 pm-11:58 pm

1 stop13h 48m

Ontario

Sat 4/25

12:59 am-7:12 pm

1 stop15h 13m

$201

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 4/30

6:00 am-3:34 pm

1 stop12h 34m

Ontario

Fri 5/1

8:20 pm-5:53 am

1 stop6h 33m

$211

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 3/21

8:20 am-11:59 pm

1 stop18h 39m

Ontario

Wed 3/25

10:03 pm-12:42 pm

1 stop11h 39m

$220

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 4/30

6:00 am-3:34 pm

1 stop12h 34m

Ontario

Sun 5/3

12:59 am-8:24 pm

1 stop16h 25m

$222

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Fri 4/17

1:10 pm-11:58 pm

1 stop13h 48m

Ontario

Mon 4/20

8:59 pm-5:53 am

1 stop5h 54m

$232

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 4/20

8:17 pm-11:55 pm

1 stop30h 38m

Ontario

Fri 4/24

9:59 pm-6:36 pm

2 stops17h 37m

$235

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Wed 4/1

7:20 am-11:56 pm

1 stop19h 36m

Ontario

Wed 4/8

10:03 pm-6:03 am

1 stop29h 00m

$238

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 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 February 2026, prices for Cincinnati to Ontario flights are approximately 72% 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 38m

Direct flights

None
The fastest flight from Cincinnati to Ontario takes 6h 38m
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 38m.

  • 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 $150Free CancellationRating
5.7
3,040 reviews
Search Frontier flights
American AirlinesPriceFrom $246Free CancellationRating
7.2
11,352 reviews
Search American Airlines flights
DeltaPriceFrom $312Free CancellationRating
7.9
8,237 reviews
Search Delta flights
United AirlinesPriceFrom $316Free CancellationRating
7.4
9,348 reviews
Search United Airlines flights
SouthwestPriceFrom $318Free CancellationRating
8.0
4,299 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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