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Cheap flights from Cincinnati to Los Angeles from $68

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 1/23. 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
6:10 am - 11:56 pmCVG-ONT
20h 46m1 stop
Frontier Logo
6:20 am - 8:48 pmONT-CVG
11h 28m1 stop
$140Frontier
Find Deal
Mon, Jan 12 - Thu, Jan 22
Frontier Logo
6:10 am - 11:56 pmCVG-ONT
20h 46m1 stop
Frontier Logo
8:48 pm - 8:53 pmONT-CVG
21h 05m2 stops
$175Frontier
Find Deal
Mon, Jan 12 - Thu, Jan 22
Frontier Logo
1:45 pm - 12:20 amCVG-ONT
13h 35m1 stop
Frontier Logo
6:20 am - 8:53 pmONT-CVG
11h 33m1 stop
$179Frontier
Find Deal
Thu, Feb 5 - Sun, Feb 8
Frontier Logo
1:45 pm - 12:20 amCVG-ONT
13h 35m1 stop
Frontier Logo
6:20 am - 8:48 pmONT-CVG
11h 28m1 stop
$182Frontier
Find Deal
Thu, Jan 22 - Thu, Jan 29
Frontier Logo
8:20 pm - 5:22 pmCVG-ONT
24h 02m1 stop
Frontier Logo
6:00 am - 7:10 pmONT-CVG
10h 10m1 stop
$183Frontier
Find Deal
Mon, Dec 22 - Fri, Dec 26
Frontier Logo
9:30 pm - 9:27 pmCVG-ONT
26h 57m1 stop
Frontier Logo
6:00 am - 8:30 pmONT-CVG
11h 30m1 stop
$184Frontier
Find Deal
Sat, Dec 20 - Sat, Dec 27
Frontier Logo
6:15 am - 11:59 pmCVG-ONT
20h 44m1 stop
Frontier Logo
6:00 am - 1:15 pmONT-CVG
28h 15m1 stop
$203Frontier
Find Deal
Thu, Feb 12 - Thu, Feb 19
Frontier Logo
8:32 pm - 2:25 pmCVG-ONT
20h 53m1 stop
Frontier Logo
2:59 pm - 11:58 pmONT-CVG
5h 59m1 stop
$207Frontier
Find Deal
Sun, Dec 7 - Thu, Dec 11
Frontier Logo
1:22 pm - 1:32 pmCVG-ONT
27h 10m2 stops
Frontier Logo
6:20 am - 8:53 pmONT-CVG
11h 33m1 stop
$212Frontier
Find Deal
Thu, Feb 5 - Sun, Feb 8
Frontier Logo
2:18 pm - 7:22 pmCVG-ONT
8h 04m1 stop
Frontier Logo
8:31 am - 12:32 amONT-CVG
13h 01m1 stop
$217Frontier
Find Deal
Thu, Jan 8 - Sun, Jan 11

Frontier flights from Cincinnati to Ontario

Our best Frontier deals on Cincinnati to Ontario flight tickets
Frontier
Jan 12
CVG6:10 amCincinnati Cinci./N. Kentucky
20h 46m
1 stop
ONT11:56 pmOntario
Jan 22
ONT6:20 amOntario
11h 28m
1 stop
CVG8:48 pmCincinnati Cinci./N. Kentucky
$140
Find similar
Frontier
Jan 12
CVG6:10 amCincinnati Cinci./N. Kentucky
20h 46m
1 stop
ONT11:56 pmOntario
Jan 22
ONT8:48 pmOntario
21h 05m
2 stops
CVG8:53 pmCincinnati Cinci./N. Kentucky
$175
Find similar
Frontier
Feb 5
CVG1:45 pmCincinnati Cinci./N. Kentucky
13h 35m
1 stop
ONT12:20 amOntario
Feb 8
ONT6:20 amOntario
11h 33m
1 stop
CVG8:53 pmCincinnati Cinci./N. Kentucky
$179
Find similar

Delta flights from Cincinnati to Ontario

Our best Delta deals on Cincinnati to Ontario flight tickets
Delta
Jan 6
CVG6:45 amCincinnati Cinci./N. Kentucky
12h 27m
2 stops
ONT4:12 pmOntario
Jan 14
ONT7:30 amOntario
12h 05m
2 stops
CVG10:35 pmCincinnati Cinci./N. Kentucky
$307
Find similar
Delta
Jan 12
CVG6:45 amCincinnati Cinci./N. Kentucky
12h 27m
2 stops
ONT4:12 pmOntario
Jan 22
ONT7:30 amOntario
12h 05m
2 stops
CVG10:35 pmCincinnati Cinci./N. Kentucky
$317
Find similar
Delta
Dec 4
CVG6:05 amCincinnati Cinci./N. Kentucky
14h 03m
2 stops
ONT5:08 pmOntario
Dec 8
ONT10:25 pmOntario
12h 06m
2 stops
CVG1:31 pmCincinnati Cinci./N. Kentucky
$735
Find similar

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 November 26, 2025.
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 1/12

6:10 am-11:56 pm

1 stop20h 46m

Ontario

Thu 1/22

6:20 am-8:48 pm

1 stop11h 28m

$140

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 1/12

6:10 am-11:56 pm

1 stop20h 46m

Ontario

Thu 1/22

8:48 pm-8:53 pm

2 stops21h 05m

$175

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 2/5

1:45 pm-12:20 am

1 stop13h 35m

Ontario

Sun 2/8

6:20 am-8:53 pm

1 stop11h 33m

$179

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 1/22

1:45 pm-12:20 am

1 stop13h 35m

Ontario

Thu 1/29

6:20 am-8:48 pm

1 stop11h 28m

$182

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 12/22

8:20 pm-5:22 pm

1 stop24h 02m

Ontario

Fri 12/26

6:00 am-7:10 pm

1 stop10h 10m

$183

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 12/20

9:30 pm-9:27 pm

1 stop26h 57m

Ontario

Sat 12/27

6:00 am-8:30 pm

1 stop11h 30m

$184

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 2/12

6:15 am-11:59 pm

1 stop20h 44m

Ontario

Thu 2/19

6:00 am-1:15 pm

1 stop28h 15m

$203

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sun 12/7

8:32 pm-2:25 pm

1 stop20h 53m

Ontario

Thu 12/11

2:59 pm-11:58 pm

1 stop5h 59m

$207

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 2/5

1:22 pm-1:32 pm

2 stops27h 10m

Ontario

Sun 2/8

6:20 am-8:53 pm

1 stop11h 33m

$212

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 1/8

2:18 pm-7:22 pm

1 stop8h 04m

Ontario

Sun 1/11

8:31 am-12:32 am

1 stop13h 01m

$217

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, January 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 $240. If you aren’t able to travel during the month of January, then book flights to Ontario from Cincinnati during March instead. Flights to Ontario in March, while not as cheap as those in January, still average around $312.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Thursday when prices can be found for as low as $366. This is often the case because there is less demand to fly during this day of the week. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Cincinnati to Ontario for around $451.

What is the cheapest time of day to depart on your flight to Ontario?

At noon is the cheapest time of day to fly from Cincinnati to Ontario when you can find flight prices for as low as $306. Flying to Ontario at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $415 on average. Flights to Ontario from Cincinnati in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How have Cincinnati to Ontario flight prices changed over time?

As of November 2025, prices for Cincinnati to Ontario flights are approximately 71% 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 55m

Direct flights

None
The fastest flight from Cincinnati to Ontario takes 6h 55m
There are no direct flights from Cincinnati to Ontario. There are no popular flight routes from Cincinnati to Ontario.
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  • 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 7h 10m.

  • 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
5.8
3,099 reviews
Search Frontier flights
American AirlinesPriceFrom $250Free CancellationRating
7.2
11,038 reviews
Search American Airlines flights
DeltaPriceFrom $312Free CancellationRating
7.9
7,999 reviews
Search Delta flights
United AirlinesPriceFrom $316Free CancellationRating
7.4
9,046 reviews
Search United Airlines flights
SouthwestPriceFrom $321Free CancellationRating
8.0
4,254 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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