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Cheap flights from Cincinnati to Los Angeles from $46

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 1/5. 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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Find the cheapest flights from Cincinnati to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
2:26 pm - 2:31 pmCVG-ONT
27h 05m1 stop
Frontier Logo
6:00 am - 1:21 pmONT-CVG
28h 21m1 stop
$130Frontier
Find Deal
Thu, Jan 8 - Thu, Jan 15
Frontier Logo
8:20 pm - 5:15 pmCVG-ONT
23h 55m1 stop
Frontier Logo
6:00 am - 1:13 pmONT-CVG
28h 13m1 stop
$133Frontier
Find Deal
Sun, Jan 4 - Sun, Jan 11
Frontier Logo
2:23 pm - 9:17 pmCVG-ONT
9h 54m1 stop
Frontier Logo
6:15 am - 7:10 pmONT-CVG
9h 55m1 stop
$134Frontier
Find Deal
Fri, Dec 12 - Mon, Dec 15
Frontier Logo
6:30 am - 2:26 pmCVG-ONT
10h 56m1 stop
Frontier Logo
6:15 am - 7:10 pmONT-CVG
9h 55m1 stop
$137Frontier
Find Deal
Tue, Nov 25 - Mon, Dec 8
Frontier Logo
2:28 pm - 2:33 pmCVG-ONT
27h 05m1 stop
Frontier Logo
5:57 pm - 11:56 pmONT-CVG
26h 59m1 stop
$138Frontier
Find Deal
Thu, Jan 15 - Thu, Jan 22
Frontier Logo
2:23 pm - 9:17 pmCVG-ONT
9h 54m1 stop
Frontier Logo
6:45 am - 2:08 amONT-CVG
16h 23m1 stop
$141Frontier
Find Deal
Fri, Dec 12 - Thu, Dec 25
Frontier Logo
6:30 am - 2:26 pmCVG-ONT
10h 56m1 stop
Frontier Logo
6:25 am - 4:03 pmONT-CVG
6h 38m1 stop
$142Frontier
Find Deal
Tue, Nov 25 - Fri, Nov 28
Frontier Logo
6:54 pm - 4:21 pmCVG-ONT
24h 27m1 stop
Frontier Logo
12:58 am - 12:39 amONT-CVG
20h 41m1 stop
$144Frontier
Find Deal
Mon, Nov 24 - Sun, Nov 30
Frontier Logo
9:30 pm - 5:42 pmCVG-ONT
23h 12m1 stop
Frontier Logo
6:00 am - 7:10 pmONT-CVG
10h 10m1 stop
$145Frontier
Find Deal
Sat, Dec 20 - Sun, Dec 28
Frontier Logo
9:30 pm - 5:42 pmCVG-ONT
23h 12m1 stop
Frontier Logo
6:00 am - 6:11 pmONT-CVG
33h 11m2 stops
$156Frontier
Find Deal
Sat, Dec 20 - Fri, Dec 26

Frontier flights from Cincinnati to Ontario

Our best Frontier deals on Cincinnati to Ontario flight tickets
Frontier
Jan 8
CVG2:26 pmCincinnati Cinci./N. Kentucky
27h 05m
1 stop
ONT2:31 pmOntario
Jan 15
ONT6:00 amOntario
28h 21m
1 stop
CVG1:21 pmCincinnati Cinci./N. Kentucky
$130
Find similar
Frontier
Jan 4
CVG8:20 pmCincinnati Cinci./N. Kentucky
23h 55m
1 stop
ONT5:15 pmOntario
Jan 11
ONT6:00 amOntario
28h 13m
1 stop
CVG1:13 pmCincinnati Cinci./N. Kentucky
$133
Find similar
Frontier
Dec 12
CVG2:23 pmCincinnati Cinci./N. Kentucky
9h 54m
1 stop
ONT9:17 pmOntario
Dec 15
ONT6:15 amOntario
9h 55m
1 stop
CVG7:10 pmCincinnati Cinci./N. Kentucky
$134
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 12, 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

Thu 1/8

2:26 pm-2:31 pm

1 stop27h 05m

Ontario

Thu 1/15

6:00 am-1:21 pm

1 stop28h 21m

$130

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sun 1/4

8:20 pm-5:15 pm

1 stop23h 55m

Ontario

Sun 1/11

6:00 am-1:13 pm

1 stop28h 13m

$133

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Fri 12/12

2:23 pm-9:17 pm

1 stop9h 54m

Ontario

Mon 12/15

6:15 am-7:10 pm

1 stop9h 55m

$134

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 11/25

6:30 am-2:26 pm

1 stop10h 56m

Ontario

Mon 12/8

6:15 am-7:10 pm

1 stop9h 55m

$137

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 1/15

2:28 pm-2:33 pm

1 stop27h 05m

Ontario

Thu 1/22

5:57 pm-11:56 pm

1 stop26h 59m

$138

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Fri 12/12

2:23 pm-9:17 pm

1 stop9h 54m

Ontario

Thu 12/25

6:45 am-2:08 am

1 stop16h 23m

$141

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 11/25

6:30 am-2:26 pm

1 stop10h 56m

Ontario

Fri 11/28

6:25 am-4:03 pm

1 stop6h 38m

$142

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 11/24

6:54 pm-4:21 pm

1 stop24h 27m

Ontario

Sun 11/30

12:58 am-12:39 am

1 stop20h 41m

$144

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 12/20

9:30 pm-5:42 pm

1 stop23h 12m

Ontario

Sun 12/28

6:00 am-7:10 pm

1 stop10h 10m

$145

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 12/20

9:30 pm-5:42 pm

1 stop23h 12m

Ontario

Fri 12/26

6:00 am-6:11 pm

2 stops33h 11m

$156

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 86% 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

Direct flights

None
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 43m.

  • 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
5.8
3,114 reviews
Search Frontier flights
American AirlinesPriceFrom $250Free CancellationRating
7.2
11,049 reviews
Search American Airlines flights
DeltaPriceFrom $312Free CancellationRating
7.9
8,009 reviews
Search Delta flights
United AirlinesPriceFrom $316Free CancellationRating
7.4
9,015 reviews
Search United Airlines flights
SouthwestPriceFrom $321Free CancellationRating
8.0
4,235 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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