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Cheap flights from Cincinnati to Los Angeles from $80

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 5/1. 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
1 adult, Economy, 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
9:29 pm - 10:05 am
CVG
-
ONT
15h 36m
1 stop
Frontier Logo
6:00 am - 12:00 pm
ONT
-
CVG
27h 00m
1 stop
$161Frontier
Mon, May 4 - Mon, May 11
Frontier Logo
8:38 pm - 6:49 pm
CVG
-
ONT
25h 11m
1 stop
Frontier Logo
5:33 pm - 7:12 pm
ONT
-
CVG
22h 39m
1 stop
$162Frontier
Mon, Apr 20 - Thu, Apr 23
Frontier Logo
12:55 pm - 10:05 am
CVG
-
ONT
24h 10m
1 stop
Frontier Logo
6:00 am - 12:00 pm
ONT
-
CVG
27h 00m
1 stop
$171Frontier
Wed, May 6 - Mon, May 11
Frontier Logo
8:17 pm - 11:55 pm
CVG
-
ONT
6h 38m
1 stop
Frontier Logo
6:00 am - 12:00 pm
ONT
-
CVG
27h 00m
1 stop
$185Frontier
Fri, May 1 - Sun, May 10
Frontier Logo
12:55 pm - 11:49 pm
CVG
-
ONT
13h 54m
1 stop
Frontier Logo
6:00 am - 12:00 pm
ONT
-
CVG
27h 00m
1 stop
$198Frontier
Wed, May 13 - Tue, May 19
Frontier Logo
8:48 pm - 8:07 pm
CVG
-
ONT
26h 19m
1 stop
Frontier Logo
6:20 am - 2:22 pm
ONT
-
CVG
29h 02m
1 stop
$200Frontier
Sun, Apr 5 - Tue, Apr 7
Frontier Logo
8:12 pm - 11:55 pm
CVG
-
ONT
6h 43m
1 stop
Frontier Logo
6:15 am - 7:23 pm
ONT
-
CVG
10h 08m
1 stop
$205Frontier
Thu, Apr 16 - Fri, Apr 17
Frontier Logo
8:38 pm - 6:49 pm
CVG
-
ONT
25h 11m
1 stop
Frontier Logo
12:59 am - 8:24 pm
ONT
-
CVG
16h 25m
1 stop
$206Frontier
Mon, Apr 20 - Sun, Apr 26
Frontier Logo
9:29 pm - 11:49 pm
CVG
-
ONT
29h 20m
1 stop
Frontier Logo
6:00 am - 12:00 pm
ONT
-
CVG
27h 00m
1 stop
$210Frontier
Mon, May 4 - Fri, May 8
Frontier Logo
8:48 pm - 8:04 am
CVG
-
ONT
14h 16m
1 stop
Frontier Logo
6:20 am - 2:22 pm
ONT
-
CVG
29h 02m
1 stop
$211Frontier
Sun, Apr 5 - Tue, Apr 7

Frontier flights from Cincinnati to Ontario

Our best Frontier deals on Cincinnati to Ontario flight tickets
Frontier
May 4
CVG9:29 pmCincinnati Cinci./N. Kentucky
15h 36m
1 stop
ONT10:05 amOntario
May 11
ONT6:00 amOntario
27h 00m
1 stop
CVG12:00 pmCincinnati Cinci./N. Kentucky
$161
Frontier
Apr 20
CVG8:38 pmCincinnati Cinci./N. Kentucky
25h 11m
1 stop
ONT6:49 pmOntario
Apr 23
ONT5:33 pmOntario
22h 39m
1 stop
CVG7:12 pmCincinnati Cinci./N. Kentucky
$162
Frontier
May 6
CVG12:55 pmCincinnati Cinci./N. Kentucky
24h 10m
1 stop
ONT10:05 amOntario
May 11
ONT6:00 amOntario
27h 00m
1 stop
CVG12:00 pmCincinnati Cinci./N. Kentucky
$171

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 March 22, 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

Mon 5/4

9:29 pm-10:05 am

1 stop15h 36m

Ontario

Mon 5/11

6:00 am-12:00 pm

1 stop27h 00m

$161

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 4/20

8:38 pm-6:49 pm

1 stop25h 11m

Ontario

Thu 4/23

5:33 pm-7:12 pm

1 stop22h 39m

$162

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Wed 5/6

12:55 pm-10:05 am

1 stop24h 10m

Ontario

Mon 5/11

6:00 am-12:00 pm

1 stop27h 00m

$171

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Fri 5/1

8:17 pm-11:55 pm

1 stop6h 38m

Ontario

Sun 5/10

6:00 am-12:00 pm

1 stop27h 00m

$185

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Wed 5/13

12:55 pm-11:49 pm

1 stop13h 54m

Ontario

Tue 5/19

6:00 am-12:00 pm

1 stop27h 00m

$198

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sun 4/5

8:48 pm-8:07 pm

1 stop26h 19m

Ontario

Tue 4/7

6:20 am-2:22 pm

1 stop29h 02m

$200
Quickest round-trip

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 4/16

8:12 pm-11:55 pm

1 stop6h 43m

Ontario

Fri 4/17

6:15 am-7:23 pm

1 stop10h 08m

$205

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 4/20

8:38 pm-6:49 pm

1 stop25h 11m

Ontario

Sun 4/26

12:59 am-8:24 pm

1 stop16h 25m

$206

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 5/4

9:29 pm-11:49 pm

1 stop29h 20m

Ontario

Fri 5/8

6:00 am-12:00 pm

1 stop27h 00m

$210

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sun 4/5

8:48 pm-8:04 am

1 stop14h 16m

Ontario

Tue 4/7

6:20 am-2:22 pm

1 stop29h 02m

$211

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 $320.

How have Cincinnati to Ontario flight prices changed over time?

As of March 2026, prices for Cincinnati to Ontario flights are approximately 40% cheaper 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 $157Free CancellationRating
5.7
3,018 reviews
Search Frontier flights
American AirlinesPriceFrom $215Free CancellationRating
7.1
11,489 reviews
Search American Airlines flights
DeltaPriceFrom $312Free CancellationRating
7.9
8,314 reviews
Search Delta flights
United AirlinesPriceFrom $316Free CancellationRating
7.4
9,455 reviews
Search United Airlines flights
SouthwestPriceFrom $318Free CancellationRating
8.0
4,324 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.

An easier way to manage your Ontario trip

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