Cheap flights from Cincinnati to Los Angeles from $76
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 11/13. 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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Frontier flights from Cincinnati to Ontario
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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 $303 on momondo.
What is the cheapest airline that flies from Cincinnati Cinci./N. Kentucky to Ontario?
Frontier, Alaska Airlines, and Delta are the most popular carriers operating from Cincinnati Cinci./N. Kentucky to Ontario
What airlines fly to Ontario?
Delta, American Airlines and Frontier 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 7 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.
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
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 04m.
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 July 2025, there are 5 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 (30% of total bookings). The next most popular airlines are Delta (29%), Frontier (26%), and Southwest (11%).
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 $148 | Free Cancellation | Rating 5.9 3,289 reviews | |||
| PriceFrom $254 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $312 | Free Cancellation | Rating 8.0 7,974 reviews | |||
| PriceFrom $318 | Free Cancellation | Rating 7.4 8,858 reviews | |||
| PriceFrom $377 | Free Cancellation | Rating 8.0 4,275 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.