HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Cincinnati

$68+ Cheap flights from Ontario to Cincinnati (ONT - CVG)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CVG
jul. 5 — jul. 121
sáb. 7/5
sáb. 7/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Cincinnati with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Ontario to Cincinnati Cinci./N. Kentucky are usually found in October or March, booked 81 days in advance, depart on a Wednesday or Monday and return on a Thursday

Cheap flight deals from Ontario to Cincinnati

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Cincinnati (CVG). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated junio 30, 2025.

Round-trip from

$141
(CheapOair)

One-way from

$68
(CheapOair)

Popular in

December

Cheapest in

October

Average price

$456
From Ontario to Cincinnati Cinci./N. Kentucky
Search Deals
One-way flight from Ontario to Cincinnati Cinci./N. Kentucky
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

Find flight deals from Ontario to Cincinnati

Cheapest flights from Ontario to Cincinnati
Explore the most affordable flight options available from Ontario to Cincinnati. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 30, 2025.

This CheapOair deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/228:00 amONT - CVG
1 stop19h 54mFrontier
jue. 10/231:37 pmCVG - ONT
1 stop13h 13mFrontier
Deal found 6/28$141

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Cincinnati 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, Cheapflights users made 2,558,603 searches. Data last updated junio 30, 2025.
Use the filters below to find and compare flights from Ontario to Cincinnati that are best for you.

Fly from

Ontario

Fly to

Cincinnati

Route

Depart

Return

Price

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

mié. 10/22

8:00 am-6:54 am

1 stop19h 54m

Cincinnati Cinci./N. Kentucky

jue. 10/23

1:37 pm-11:50 pm

1 stop13h 13m

$141

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

sáb. 8/9

5:13 pm-12:59 am

1 stop28h 46m

$68

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

mié. 10/15

6:00 am-5:49 pm

1 stop8h 49m

$133

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

jue. 7/24

12:59 am-12:42 pm

1 stop8h 43m

$139

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

sáb. 8/9

12:47 pm-11:06 pm

1 stop7h 19m

$140

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

mié. 10/22

5:05 am-2:21 pm

1 stop6h 16m

$185

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

lun. 10/13

6:00 am-5:49 pm

1 stop8h 49m

$191

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Best time to book a flight from Ontario to Cincinnati

Have a flexible travel schedule? Discover the best time to fly to Cincinnati from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Cincinnati

How far ahead should I book a flight from Ontario to Cincinnati?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Cincinnati. Price data was last updated on June 27, 2025.

To ensure you get the cheapest price possible for a flight from Ontario to Cincinnati, you should look to book at least 80 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Ontario to Cincinnati?

Currently, August is the cheapest month in which you can book a flight from Ontario to Cincinnati (average of $239). Flying from Ontario to Cincinnati in March is currently the most expensive (average of $292). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to CVG?

Find hourly flight availability from Ontario to Cincinnati. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 30, 2025.

It’s optimal to fly from Ontario to Cincinnati in the evening. By choosing this option you can save up to 48% on the cost of your flight, compared to a flight in the morning.

Reviews of airlines servicing Cincinnati

Get insights into the airlines that provide service to Cincinnati. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cincinnati. Reviews last updated junio 30, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Hawaiian Airlines, and United Airlines from Ontario to Cincinnati to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,533 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,852 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Frontier
5.9
Fair
3,289 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Entertainment

7.1

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Cincinnati. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What is the cheapest airline to fly from Ontario to Cincinnati round-trip?

    Flying on Frontier is currently your cheapest option to Cincinnati, with prices starting at $141. This flight start at 66% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Ontario to Cincinnati one-way?

    The cheapest airlines for a one-way flight from Ontario to Cincinnati are Frontier ($68), Hawaiian Airlines ($133), and American Airlines ($140).

  • Can I find deals for flights from Ontario to Cincinnati that include hotel bookings?

    Yes. In addition to deals on Ontario to Cincinnati flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Cincinnati?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Cincinnati.

  • Can I find deals for business class flights from Ontario to Cincinnati?

    Yes. Cheapflights offers flight deals from Ontario to Cincinnati by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Cincinnati?

    Currently, August is the cheapest month in which you can book a flight from Ontario to Cincinnati (average of $239). Flying from Ontario to Cincinnati in March is currently the most expensive (average of $292). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Ontario?

Book flights to Ontario if you plan to visit one of these locations
Sharonville
Newport
Florence
Mason
West Chester
Covington
Hebron
Lawrenceburg
Fairfield
Blue Ash
Williamstown
Middletown
Sparta
Oxford
Dry Ridge
Edgewood

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Cincinnati

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Detroit flights
San Francisco to Detroit flights
Los Angeles to Cleveland flights
Ontario to Detroit flights
Los Angeles to Cincinnati flights
San Francisco to Pittsburgh flights
San Francisco to Columbus flights
San Francisco to Cleveland flights
Santa Ana to Detroit flights
Burbank to Detroit flights
Los Angeles to Columbus flights
San Diego to Detroit flights
Los Angeles to Pittsburgh flights
San Jose to Detroit flights
San Diego to Pittsburgh flights
Oakland to Detroit flights
Las Vegas to Detroit flights
Ontario to Cleveland flights
Las Vegas to Pittsburgh flights
San Francisco to Cincinnati flights
Las Vegas to Cleveland flights
Sacramento to Detroit flights
Santa Ana to Cincinnati flights
San Diego to Cleveland flights
Ontario to Pittsburgh flights
San Diego to Cincinnati flights
Ontario to Columbus flights
Santa Ana to Pittsburgh flights
Santa Ana to Columbus flights
Sacramento to Cleveland flights
Las Vegas to Cincinnati flights
Long Beach to Detroit flights
San Diego to Columbus flights
Los Angeles to Dayton flights
Burbank to Cincinnati flights
Sacramento to Columbus flights
San Jose to Pittsburgh flights
Santa Ana to Cleveland flights
Las Vegas to Columbus flights
Oakland to Pittsburgh flights
Burbank to Pittsburgh flights
Oakland to Columbus flights
Burbank to Cleveland flights
San Jose to Columbus flights
Palm Springs to Detroit flights
Ontario to Dayton flights
San Luis Obispo to Detroit flights
Burbank to Columbus flights
Reno to Detroit flights

Top 5 airlines flying from Ontario to Cincinnati

Discover the top 5 airlines that operate flights from Ontario to Cincinnati. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated junio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$157Average$260FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$322Average$425FlexibilityNo cancel feeOn-time71%
DeltaCheapest$322Average$473FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$350Average$448FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$377Average$559FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.