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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 9/29. 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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Cheap round-trip flights

Frontier Logo
6:14 pm - 11:50 pmCVG-ONT
8h 36m1 stop
Frontier Logo
6:53 am - 1:39 amONT-CVG
15h 46m1 stop
$150Frontier
Find Deal
Thu, Oct 23 - Mon, Oct 27
Frontier Logo
8:00 am - 11:50 pmCVG-ONT
18h 50m1 stop
Frontier Logo
7:04 am - 11:59 pmONT-CVG
13h 55m1 stop
$151Frontier
Find Deal
Tue, Oct 14 - Tue, Oct 21
Frontier Logo
6:05 am - 11:50 pmCVG-ONT
20h 45m1 stop
Frontier Logo
4:05 pm - 1:39 amONT-CVG
6h 34m1 stop
$152Frontier
Find Deal
Wed, Oct 29 - Mon, Nov 3
Frontier Logo
3:21 pm - 7:53 amCVG-ONT
19h 32m1 stop
Frontier Logo
12:13 pm - 9:59 pmONT-CVG
6h 46m1 stop
$153Frontier
Find Deal
Thu, Oct 2 - Mon, Oct 6
Frontier Logo
9:10 pm - 8:42 pmCVG-ONT
26h 32m1 stop
Frontier Logo
6:53 am - 1:39 amONT-CVG
15h 46m1 stop
$156Frontier
Find Deal
Fri, Oct 24 - Tue, Oct 28
Frontier Logo
8:00 am - 11:50 pmCVG-ONT
18h 50m1 stop
Frontier Logo
6:05 am - 6:54 amONT-CVG
21h 49m1 stop
$157Frontier
Find Deal
Sat, Oct 11 - Thu, Oct 16
Frontier Logo
8:00 am - 2:00 pmCVG-ONT
9h 00m1 stop
Frontier Logo
12:13 pm - 9:59 pmONT-CVG
6h 46m1 stop
$158Frontier
Find Deal
Mon, Sep 29 - Mon, Oct 6
Frontier Logo
9:10 pm - 7:47 amCVG-ONT
13h 37m1 stop
Frontier Logo
8:34 am - 11:59 pmONT-CVG
12h 25m1 stop
$159Frontier
Find Deal
Sun, Oct 19 - Fri, Oct 24
Frontier Logo
8:00 am - 11:10 amCVG-ONT
6h 10m1 stop
Frontier Logo
12:05 pm - 1:39 amONT-CVG
10h 34m1 stop
$160Frontier
Find Deal
Sat, Nov 1 - Thu, Nov 6
Frontier Logo
3:21 pm - 7:54 pmCVG-ONT
7h 33m1 stop
Frontier Logo
10:30 am - 1:39 amONT-CVG
12h 09m1 stop
$162Frontier
Find Deal
Thu, Oct 2 - Thu, Oct 9

Frontier flights from Cincinnati to Ontario

Our best Frontier deals on Cincinnati to Ontario flight tickets
Frontier
Oct 23
CVG6:14 pmCincinnati Cinci./N. Kentucky
8h 36m
1 stop
ONT11:50 pmOntario
Oct 27
ONT6:53 amOntario
15h 46m
1 stop
CVG1:39 amCincinnati Cinci./N. Kentucky
$150
Find similar
Frontier
Oct 14
CVG8:00 amCincinnati Cinci./N. Kentucky
18h 50m
1 stop
ONT11:50 pmOntario
Oct 21
ONT7:04 amOntario
13h 55m
1 stop
CVG11:59 pmCincinnati Cinci./N. Kentucky
$151
Find similar
Frontier
Oct 29
CVG6:05 amCincinnati Cinci./N. Kentucky
20h 45m
1 stop
ONT11:50 pmOntario
Nov 3
ONT4:05 pmOntario
6h 34m
1 stop
CVG1:39 amCincinnati Cinci./N. Kentucky
$152
Find similar

Delta flights from Cincinnati to Ontario

Our best Delta deals on Cincinnati to Ontario flight tickets
Delta
Oct 1
CVG4:53 pmCincinnati Cinci./N. Kentucky
8h 30m
1 stop
ONT10:23 pmOntario
Oct 14
ONT11:36 amOntario
9h 23m
1 stop
CVG11:59 pmCincinnati Cinci./N. Kentucky
$442
Find similar
Delta
Oct 1
CVG6:00 amCincinnati Cinci./N. Kentucky
7h 42m
1 stop
ONT10:42 amOntario
Oct 13
ONT10:00 pmOntario
7h 49m
1 stop
CVG8:49 amCincinnati Cinci./N. Kentucky
$453
Find similar
Delta
Oct 1
CVG7:00 amCincinnati Cinci./N. Kentucky
15h 15m
2 stops
ONT7:15 pmOntario
Oct 14
ONT11:36 amOntario
9h 23m
1 stop
CVG11:59 pmCincinnati Cinci./N. Kentucky
$457
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 September 17, 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 10/23

6:14 pm-11:50 pm

1 stop8h 36m

Ontario

Mon 10/27

6:53 am-1:39 am

1 stop15h 46m

$150

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 10/14

8:00 am-11:50 pm

1 stop18h 50m

Ontario

Tue 10/21

7:04 am-11:59 pm

1 stop13h 55m

$151

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Wed 10/29

6:05 am-11:50 pm

1 stop20h 45m

Ontario

Mon 11/3

4:05 pm-1:39 am

1 stop6h 34m

$152

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 10/2

3:21 pm-7:53 am

1 stop19h 32m

Ontario

Mon 10/6

12:13 pm-9:59 pm

1 stop6h 46m

$153

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Fri 10/24

9:10 pm-8:42 pm

1 stop26h 32m

Ontario

Tue 10/28

6:53 am-1:39 am

1 stop15h 46m

$156

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 10/11

8:00 am-11:50 pm

1 stop18h 50m

Ontario

Thu 10/16

6:05 am-6:54 am

1 stop21h 49m

$157

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 9/29

8:00 am-2:00 pm

1 stop9h 00m

Ontario

Mon 10/6

12:13 pm-9:59 pm

1 stop6h 46m

$158

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sun 10/19

9:10 pm-7:47 am

1 stop13h 37m

Ontario

Fri 10/24

8:34 am-11:59 pm

1 stop12h 25m

$159

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 11/1

8:00 am-11:10 am

1 stop6h 10m

Ontario

Thu 11/6

12:05 pm-1:39 am

1 stop10h 34m

$160

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 10/2

3:21 pm-7:54 pm

1 stop7h 33m

Ontario

Thu 10/9

10:30 am-1:39 am

1 stop12h 09m

$162

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 $276. 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 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 $383 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 $326 on momondo.

How have Cincinnati to Ontario flight prices changed over time?

As of September 2025, prices for Cincinnati to Ontario flights are approximately 131% 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 6h 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 $148Free CancellationRating
5.8
3,173 reviews
Search Frontier flights
American AirlinesPriceFrom $250Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $316Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
DeltaPriceFrom $318Free CancellationRating
7.9
7,961 reviews
Search Delta flights
SouthwestPriceFrom $374Free CancellationRating
8.0
4,242 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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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