Cheap flights from Cincinnati to Los Angeles from $111
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 12/8. 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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Not ready to book? to track prices.Frontier flights from Cincinnati to Ontario
Our best Frontier deals on Cincinnati to Ontario flight tickets
Delta flights from Cincinnati to Ontario
Our best Delta deals on Cincinnati to Ontario flight tickets
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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
CincinnatiOntario
CVG Cincinnati Cinci./N. Kentucky - ONT Ontario
CVGONT
Cincinnati Cinci./N. Kentucky
Mon 11/2
2:59 pm-10:35 am
2 stops22h 36m
Ontario
Thu 11/5
11:52 am-3:22 pm
1 stop24h 30m
CincinnatiOntario
CVG Cincinnati Cinci./N. Kentucky - ONT Ontario
CVGONT
Cincinnati Cinci./N. Kentucky
Sat 10/24
4:32 pm-11:50 pm
1 stop10h 18m
Ontario
Wed 10/28
6:25 am-3:22 pm
1 stop5h 57m
CincinnatiOntario
CVG Cincinnati Cinci./N. Kentucky - ONT Ontario
CVGONT
Cincinnati Cinci./N. Kentucky
Tue 11/3
8:36 am-3:13 pm
1 stop9h 37m
Ontario
Tue 11/10
11:52 am-3:22 pm
1 stop24h 30m
CincinnatiOntario
CVG Cincinnati Cinci./N. Kentucky - ONT Ontario
CVGONT
Cincinnati Cinci./N. Kentucky
Tue 1/5
7:28 am-12:41 pm
1 stop8h 13m
Ontario
Sat 1/9
6:00 am-4:16 pm
1 stop7h 16m
CincinnatiOntario
CVG Cincinnati Cinci./N. Kentucky - ONT Ontario
CVGONT
Cincinnati Cinci./N. Kentucky
Wed 11/4
6:00 am-11:52 am
1 stop8h 52m
Ontario
Wed 11/11
10:30 pm-9:25 am
1 stop7h 55m
CincinnatiOntario
CVG Cincinnati Cinci./N. Kentucky - ONT Ontario
CVGONT
Cincinnati Cinci./N. Kentucky
Wed 1/6
6:40 am-12:30 pm
1 stop8h 50m
Ontario
Mon 1/11
1:00 pm-11:09 pm
1 stop7h 09m
CincinnatiOntario
CVG Cincinnati Cinci./N. Kentucky - ONT Ontario
CVGONT
Cincinnati Cinci./N. Kentucky
Mon 1/11
7:30 pm-10:48 pm
1 stop6h 18m
Ontario
Tue 1/12
6:00 am-3:09 pm
1 stop6h 09m
CincinnatiOntario
CVG Cincinnati Cinci./N. Kentucky - ONT Ontario
CVGONT
Cincinnati Cinci./N. Kentucky
Wed 11/4
1:20 pm-8:40 pm
2 stops10h 20m
Ontario
Wed 11/11
5:55 am-4:50 pm
2 stops7h 55m
CincinnatiOntario
CVG Cincinnati Cinci./N. Kentucky - ONT Ontario
CVGONT
Cincinnati Cinci./N. Kentucky
Thu 11/5
7:00 am-12:29 pm
1 stop8h 29m
Ontario
Sun 11/8
6:00 am-3:45 pm
1 stop6h 45m
CincinnatiOntario
CVG Cincinnati Cinci./N. Kentucky - ONT Ontario
CVGONT
Cincinnati Cinci./N. Kentucky
Thu 11/5
7:00 am-12:29 pm
1 stop8h 29m
Ontario
Sun 11/8
5:00 am-5:25 pm
2 stops9h 25m
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 typical price of a round-trip flight between Cincinnati and Ontario?
Prices are currently low for flights on this route.
Typical prices usually range from $278 to $532.The lowest price recently found on this route was $246.
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 $336. If you aren’t able to travel during the month of January, then book flights to Ontario from Cincinnati during July instead. Flights to Ontario in July, while not as cheap as those in January, still average around $358.
How have Cincinnati to Ontario flight prices changed over time?
As of October 2026, prices for Cincinnati to Ontario flights are approximately 136% more expensive when compared to flights at the same time last year.
What is the cheapest airline that flies from Cincinnati Cinci./N. Kentucky to Ontario?
Frontier is the most popular carrier operating from Cincinnati Cinci./N. Kentucky to Ontario
What airlines fly to Ontario?
Delta, American Airlines and United Airlines are the top three most popular airlines that fly to Ontario from Cincinnati according to our data. Delta is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 8 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.
Which airport is the most popular layover for flights between Cincinnati and Ontario?
Dallas (DFW) was the most common stop: 33% of momondo users choosing 1-stop flights on this route connected there.
Which layover airport offers the lowest fares from Cincinnati to Ontario?
Flights via Denver (DEN) offer the lowest average round-trip price of $486.
Which layover airport has the shortest travel time from Cincinnati to Ontario?
Flights connecting via Denver (DEN) have the shortest average one-way travel time: 6h 23m.
Which layover airport has the shortest connection time from Cincinnati to Ontario?
Salt Lake City (SLC) has the shortest average layover time for this route: 1h 01m.
When to book flights from Cincinnati to Ontario
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
Frequently asked questions about flying from Cincinnati to Ontario
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 51m.
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?
As of October 2026, there are 4 operators available to choose from 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?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Cincinnati to Ontario is American Airlines (34% of total bookings). The next most popular airlines are Frontier (31%), Delta (23%), and United Airlines (13%).
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 | ||
|---|---|---|---|---|---|
| PriceFrom $202 | Free Cancellation | Rating 5.5 2,550 reviews | |||
| PriceFrom $277 | Free Cancellation | Rating 7.8 8,634 reviews | |||
| PriceFrom $318 | Free Cancellation | Rating 7.0 12,128 reviews | |||
| PriceFrom $373 | Free Cancellation | Rating 7.4 10,287 reviews |
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.