$113 Cheap Flights from Cincinnati (CVG) to Ontario (ONT)

View $113 flight on Thu, Sep 25, 2025Opens in a new window

Popular airlines from Cincinnati-Northern Kentucky Int'l Airport (CVG) to Los Angeles - Ontario Intl. Airport (ONT)

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Cheap Flights from Cincinnati to Ontario (CVG-ONT)

Prices were available within the past 7 days and start at $113 for one-way flights and $181 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Tue, Aug 5 - Mon, Aug 11
CVG
Cincinnati
ONT
Ontario
$181 Roundtrip, found 5 days ago
$181
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Tue, Aug 5 from Cincinnati to Ontario, returning Mon, Aug 11, priced at $181 found 5 days ago
Frontier Airlines
Sat, Jul 26 - Wed, Aug 13
CVG
Cincinnati
ONT
Ontario
$203 Roundtrip, found 5 days ago
$203
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sat, Jul 26 from Cincinnati to Ontario, returning Wed, Aug 13, priced at $203 found 5 days ago
Frontier Airlines
Mon, Aug 4 - Thu, Aug 14
CVG
Cincinnati
ONT
Ontario
$205 Roundtrip, found 5 days ago
$205
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Mon, Aug 4 from Cincinnati to Ontario, returning Thu, Aug 14, priced at $205 found 5 days ago
Frontier Airlines
Wed, Jul 30 - Sat, Aug 16
CVG
Cincinnati
ONT
Ontario
$207 Roundtrip, found 5 days ago
$207
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Wed, Jul 30 from Cincinnati to Ontario, returning Sat, Aug 16, priced at $207 found 5 days ago
Frontier Airlines
Tue, Aug 5 - Wed, Aug 6
CVG
Cincinnati
ONT
Ontario
$210 Roundtrip, found 5 days ago
$210
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Tue, Aug 5 from Cincinnati to Ontario, returning Wed, Aug 6, priced at $210 found 5 days ago
Frontier Airlines
Sat, Sep 13 - Wed, Sep 24
CVG
Cincinnati
ONT
Ontario
$214 Roundtrip, found 1 day ago
$214
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Sep 13 from Cincinnati to Ontario, returning Wed, Sep 24, priced at $214 found 1 day ago
Southwest Airlines
Wed, Aug 20 - Sat, Aug 23
CVG
Cincinnati
ONT
Ontario
$279 Roundtrip, found 4 hours ago
$279
Roundtrip
found 4 hours ago
Select Southwest Airlines flight, departing Wed, Aug 20 from Cincinnati to Ontario, returning Sat, Aug 23, priced at $279 found 4 hours ago
American Airlines
Wed, Aug 20 - Sat, Aug 23
CVG
Cincinnati
ONT
Ontario
$279 Roundtrip, found 4 hours ago
$279
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Wed, Aug 20 from Cincinnati to Ontario, returning Sat, Aug 23, priced at $279 found 4 hours ago
Delta
Wed, Aug 20 - Sat, Aug 23
CVG
Cincinnati
ONT
Ontario
$279 Roundtrip, found 4 hours ago
$279
Roundtrip
found 4 hours ago
Select Delta flight, departing Wed, Aug 20 from Cincinnati to Ontario, returning Sat, Aug 23, priced at $279 found 4 hours ago
United
Wed, Aug 20 - Sat, Aug 23
CVG
Cincinnati
ONT
Ontario
$279 Roundtrip, found 4 hours ago
$279
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Aug 20 from Cincinnati to Ontario, returning Sat, Aug 23, priced at $279 found 4 hours ago

Find the cheapest month to fly from Cincinnati (CVG) to Ontario (ONT)

November is typically the cheapest month to fly

From $138 - $591 per traveler.

Graph displaying average flight prices per month

Alternative airports near Ontario

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to John Wayne SNA. Cheapest option available. Average driving time to city center is 42 minutes. Flights from $318
SNA
John Wayne
Cheapest
Average driving time to city center42 min
Flights from $318
Flights from Cincinnati (CVG) to Ontario (ONT)
Origin airport
Cincinnati - Northern Kentucky Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Roundtrip price
$181
Distance
1849 mi

Cincinnati to Ontario Flights

The cheapest times to fly from Cincinnati to Ontario

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Cincinnati to Ontario are during the month of August. You can find some of the cheapest flights from Cincinnati to Ontario with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Cincinnati to Ontario

Sunday is one of the best days to book for cheap flights from Cincinnati to Ontario: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Cincinnati to Ontario

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Cincinnati to Ontario in 2025. You can also book with separate airlines for your outbound and return journeys, from $113 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Cincinnati to Ontario flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Cincinnati to Ontario airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Cincinnati - Northern Kentucky Intl. Airport (CVG) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Discover the latest flight deals from CVG to ONT by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from CVG to ONT?
The cheapest flights from CVG to ONT are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from CVG to ONT?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from CVG to ONT. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Cincinnati - Northern Kentucky Intl. Airport (CVG) to Los Angeles - Ontario Intl. Airport (ONT)?
Direct flights from Cincinnati - Northern Kentucky Intl. Airport (CVG) to Los Angeles - Ontario Intl. Airport (ONT) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from CVG to ONT?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary based on a number of factors, such as the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Cincinnati - Northern Kentucky Intl. Airport (CVG) to Los Angeles - Ontario Intl. Airport (ONT)?
To avoid potential delays on the Cincinnati - Northern Kentucky Intl. Airport (CVG) to Los Angeles - Ontario Intl. Airport (ONT) route, travel before 3 PM. Departures after this hour have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Ontario from Cincinnati - Northern Kentucky Intl. Airport (CVG)?
Check out your flight options from Cincinnati - Northern Kentucky Intl. Airport (CVG) to Los Angeles Intl. Airport (LAX). This is the only Ontario airport you can jet into if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Cincinnati - Northern Kentucky Intl. Airport (CVG) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Booking your flight from CVG to ONT just before your trip is typically more expensive. However, if you're flexible with your schedule, you could land a cheap last-minute fare.
Is it cheaper to book a CVG to ONT flight and hotel package?
You can save money by booking a CVG to ONT flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've selected your preferred accommodations and flights, consider other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Cincinnati - Northern Kentucky Intl. Airport (CVG) to Los Angeles - Ontario Intl. Airport (ONT)?
Typically, it's possible to cancel or reschedule your CVG to ONT flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.