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ONT - CVG

$88 Find cheap flights from Ontario to Cincinnati

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Cincinnati departing on 8/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Wed 7/10
Wed 7/17

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Cincinnati, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Cincinnati, as well as popular online travel agencies
In the last 7 days travelers have searched 42,898,604 times on KAYAK, and here is why:

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Cheap flight deals from Ontario to Cincinnati (ONT-CVG)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Cincinnati that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
12:59 am - 10:19 amONT-CVG
6h 20m1 stop
1:25 pm - 5:53 pmCVG-ONT
7h 28m1 stop
$154Frontier
Find Deal
Tue, Jul 9 - Tue, Jul 30
12:59 am - 10:19 amONT-CVG
6h 20m1 stop
1:25 pm - 5:53 pmCVG-ONT
7h 28m1 stop
$158Frontier
Find Deal
Tue, Jul 9 - Tue, Jul 16
5:00 pm - 8:31 amONT-CVG
12h 31m2 stops
4:32 pm - 11:59 pmCVG-ONT
10h 27m2 stops
$328Delta
Find Deal
Wed, Jul 10 - Tue, Jul 16
10:00 pm - 8:43 amONT-CVG
7h 43m1 stop
5:55 pm - 10:42 pmCVG-ONT
7h 47m1 stop
$338Delta
Find Deal
Wed, Oct 16 - Sat, Oct 19
10:51 am - 10:40 pmONT-CVG
8h 49m1 stop
3:59 pm - 9:44 pmCVG-ONT
8h 45m2 stops
$343American Airlines
Find Deal
Thu, Sep 26 - Tue, Oct 8
9:41 am - 10:40 pmONT-CVG
9h 59m2 stops
3:59 pm - 9:44 pmCVG-ONT
8h 45m2 stops
$398American Airlines
Find Deal
Thu, Sep 26 - Tue, Oct 8
6:00 am - 5:59 pmONT-CVG
8h 59m1 stop
5:30 am - 12:15 pmCVG-ONT
9h 45m1 stop
Wed, Nov 20 - Sun, Dec 1
5:15 am - 2:27 pmONT-CVG
6h 12m1 stop
3:33 pm - 12:45 amCVG-ONT
12h 12m2 stops
$485United Airlines
Find Deal
Sun, Sep 22 - Wed, Sep 25
6:20 pm - 3:09 pmONT-CVG
17h 49m2 stops
5:46 pm - 1:07 pmCVG-ONT
22h 21m2 stops
$489United Airlines
Find Deal
Fri, Oct 18 - Mon, Oct 21
9:36 pm - 12:13 pmONT-CVG
11h 37m1 stop
5:26 pm - 9:05 amCVG-ONT
18h 39m2 stops
Mon, Jul 1 - Mon, Jul 8

Flights from Ontario to Cincinnati - Travel Insights & Trends

Get data-powered insights and trends into flights from Ontario to Cincinnati to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Ontario to Cincinnati?

The average price of all flights from Ontario to Cincinnati clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Ontario to Cincinnati, look for departures on Wednesdays and avoid leaving on a Tuesday, as it's usually the priciest day. When flying back from Cincinnati, Wednesday is the cheapest day to fly and Thursday is the most expensive.

What is the cheapest month to fly from Ontario to Cincinnati?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ontario to Cincinnati, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Ontario to Cincinnati is July, where tickets cost $279 on average. On the other hand, the most expensive months are February and December, where the average cost of tickets is $415 and $408 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Ontario to Cincinnati, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Ontario to Cincinnati, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 40 days before departure.

Which airlines provide the cheapest flights from Ontario to Cincinnati?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest one-way tickets to Cincinnati from Ontario were found on Frontier ($88) and Delta ($164), and the lowest round-trip tickets were found on Frontier ($154) and Delta ($328).

Good to know

Low season

January

High season

March

Cheapest flight

$88
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from Ontario to Cincinnati

When to book flights from Ontario to Cincinnati

Are your dates flexible? Find out the best times to travel from Ontario to Cincinnati based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Cincinnati

  • What is the cheapest flight from Ontario to Cincinnati?

    In the last 3 days, the lowest price for a flight from Ontario to Cincinnati was $88 for a one-way ticket and $154 for a round-trip.

  • Do I need a passport to fly between Ontario and Cincinnati?

    No, a passport isn't needed to fly from Ontario to Cincinnati. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Ontario to Cincinnati?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Cincinnati?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Ontario and Cincinnati, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Ontario to Cincinnati, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Ontario to Cincinnati are Delta and United Airlines. With an average price for the route of $437 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $469 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Ontario to Cincinnati?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Cincinnati.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Cincinnati?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Cincinnati from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Cincinnati?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Cincinnati with an airline and back to Ontario with another airline. Booking your flights between Ontario and CVG can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Cincinnati?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Cincinnati from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Ontario to Cincinnati

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Cincinnati. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Cincinnati? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10295 reviews
8.6Crew
7.4Food
8.2Boarding
8.0Entertainment
7.9Comfort
Airline reviews

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

4.0 OkayBrooke, Jun 2024SFO - MSP
Read more about Delta reviews

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

I had a wonderful experience flying with delta. The gentleman taking care of us on our flight was so nice, accommodating, and attentive. He always was smiling and giving pins to the kids which made me smile. The flight was quick too and without turbulence. Thank you for the great flying experience.

There was a loud squeaky sound the whole time we were flying.

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Plane was late because of a mechanical malfunction and the food listed as available was not. Flight attendants seem over worked and under paid. They just done seem happy. And that can be seen in their faces.

Everything went well with the flight. But one of the flight attendants had on inappropriate pants. She had on an old worn out pair of sweat pants. The back seam was unrivaled and should not have been worn for work. If I had not seen her in the airport with the standard type of luggage, I certainly would not have thought she was working for Delta. Not a good look at all for representation.

Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.

The plane was one hour late cause they were doing some reparations with us on the plane no mention I was in the first seat and the door was open the entire time with 8 degrees! The plane was totally dirty no mention old ! The staff was nice but no put together, the attention to details and passenger experience is missing and i always travel first !!! Is better the lounge than the plane! KLM/air France every details is taken care maybe you need a creative creator or experience client need asap was terrible and not memorable for the price that I payed very dissatisfied

Flight was good, boarding was a breeze, flight attendants were friendly and professional. There was a medical issue with another passenger and the crew handled it in a calm and professional way.

The net issue I had was with the gate agent. We had added a carryon to our boarding pass when we checked bags. When I got to the boarding gate the agent was rude asking why I had a backpack - I said I added it - even had an orange tag on it. She ripped my tag off and swung her monitor around to show me how she was right- saying it isn’t wasn’t listed - only a checked bag. I explained again that I wasn’t sure what the issue was but I wouldn’t have an orange tag if I hadn’t added it. Then she finally checked my husband’s boarding pass and found that the agent at checkin had added my carryon to his boarding pass instead of mine. She sent me on my way without my orange tag. Was a bit embarrassing for me the tone she used with me assuming I was trying to get away with something.

Gate agent asked if I could switch seats so a family could sit together. Agent moved me to a seat in the front of the plane, no charge. It was easy. The agent did a great job.

Great seat space. However food and drink prices outrageous. Jabbing to pay for a carry on bag or stuck paying at the gate too much.

Every Allegiant Air flight I've ever taken has been delayed. This flight was delayed a full 2 hours. It was excuse after excuse after excuse. It was a flight from southern Florida. They made us board the plane on time, but made us wait for 2 hours on the tarmac. Because the engines were kept shut off, so was the air conditioning. One can only imagine how hot the air was in the cabin over those 2 hours on the tarmac, while in the hot Florida sun. Just terrible.

Actually, for the price, I'm willing to put up with a little discomfort (upright chairs) and at times inconveniences (like any airline), lack of entertainment (I can bring my own). My flight was non stop and smooth. I would fly this route again.

The flight was delayed 6 hours and we were only offered an $8 food credit. My husband stood in line to get the credit for 45 minutes and when he got close to the end of the line the computers went down.

Worst ever! Flight cancelled supposedly for weather even though we k ow of many others who flew into Bangor same time no problem. At the airport there was no customer service at all just refund and no possibility of rebook for 3-4 days. Aweful won’t fly with them again!!

It’s a budget airline so adjust expectations accordingly. Nothing is without a fee but such is necessary for tickets to remain so affordable.

No complaints. It’s a budget airline so can’t expect any frills.

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

I had a great flight. Everything went smoothly and the flight arrived early.

On time take off…US cabins look tired and need of refresh!

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

The flight was delayed several times without explanation. The seats were terribly uncomfortable and wifi isn’t included. All these make for a less than ideal flight.

Internet service was erratic. Crew service was poor and slow. My luggage on this non-stop flight was lost and not recovered

Experience was bad. 3.5 hour delay for a 2.5 hour trip. There was no r Transparency about the reason for the delay and it was done 30 mins at a time.

Flight was 1/2 hour delayed leaving Phoenix. Otherwise it was an average flight. Flight crew on this trip was very nice.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

Comfort of seats, ease of boarding. Food selection could be better

Food options were limited which is absolutely embarrassing for a Flight of this size The staff did not come around as much and I am not accustomed to such poor service from American Airlines Drinks I believe were limited to soda and water

Do not eat the bagel! Otherwise, good albeit late, breakfast in first. Boarding downgrade only because flight was delayed due to plane change due to undisclosed problem with original aircraft. I did not use entertainment.

Crew were attentive and friendly. Flight was smooth and early! I enjoyed the less crowded plane. Thank you!

I strongly dislike Frontier. I find them barebones, the seats not particularly comfortable, the nickel and diming is maddening, the app is TERRIBLE - super confusing to navigate, and the last 4 frontier flights I have flown have been on AVERAGE 2 hours late, one ruining a fancy night out in Vegas with reservations made well in advance, which was nodded to with a measly 5000 miles, which translates to almost nothing. At least credit a free checked bag or something.

8 hr delay. had to buy another ticket with another airline

Four and a half hour delay in total. What frustrates me most is the poor communication and disorganization.

I appreciated the upgrade to free cary-on bag and seat selection at no charge

Flight was delay 9hrs and nothing was provided at airport, had to go and get a room to sleep in, paid for Uber back and fort with no offers until we landed back home a 1hr later for a $75 voucher for a future flight.

Fecal matter in seat back pocket. Presumably from a kids diaper.

Our flight was delayed an hour, then when we got to board our flight finally, we were waiting in our seats for take off for 45 minutes before it was communicated that there was a maintenance issue therefore we waited on the plane for over an hour while that was resolved. We did not get to Phoenix until almost 3 hours after we were originally supposed to. This was the first and last time I will be flying Frontier.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The process of buying the ticket and navigating all the hidden charges that Frontier throws at you was a terrible experience. The actual airport experience and flying was fine.

Book cheap flights from Ontario to Cincinnati

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ontario to Cincinnati found on KAYAK in the last 72 hours.
8/13Tue
1 stopFrontier
6h 30mONT-CVG
$88
8/14Wed
1 stopFrontier
12h 51mONT-CVG
$93
8/14Wed
1 stopFrontier
8h 29mONT-CVG
$95
9/4Wed
2 stopsDelta
12h 03mONT-CVG
$164
9/23Mon
1 stopDelta
7h 53mONT-CVG
$179
7/11Thu
1 stopSouthwest
10h 25mONT-CVG
$219
6/25Tue
1 stopAmerican Airlines
9h 49mONT-CVG
$253
7/4Thu
2 stopsUnited Airlines
17h 09mONT-CVG
$268
7/9Tue
2 stopsUnited Airlines
19h 24mONT-CVG
$272
6/20Thu
2 stopsAmerican Airlines
10h 02mONT-CVG
$408

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Last minute flights from Ontario to Cincinnati

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Ontario to Cincinnati that are departing in the next 10 days.
6/14Fri
multi-stopFrontier
9h 04mONT-CVG
6/16Sun
multi-stopFrontier
7h 16mCVG-ONT
$287
6/14Fri
multi-stopFrontier
8h 11mONT-CVG
6/17Mon
multi-stopFrontier
13h 16mCVG-ONT
$298
6/15Sat
multi-stopFrontier
28h 29mONT-CVG
6/24Mon
multi-stopFrontier
13h 16mCVG-ONT
$318
6/13Thu
multi-stopFrontier
6h 25mONT-CVG
6/16Sun
multi-stopFrontier
28h 03mCVG-ONT
$329
6/13Thu
multi-stopFrontier
6h 25mONT-CVG
6/16Sun
multi-stopFrontier
28h 03mCVG-ONT
$333
6/13Thu
multi-stopFrontier
6h 25mONT-CVG
6/16Sun
multi-stopFrontier
28h 03mCVG-ONT
$334
6/14Fri
multi-stop
13h 26mONT-CVG
6/16Sun
multi-stop
7h 16mCVG-ONT
$652
6/14Fri
multi-stopAmerican Airlines
13h 53mONT-CVG
6/16Sun
multi-stopAmerican Airlines
12h 06mCVG-ONT
$843
6/13Thu
multi-stopAlaska Airlines
11h 13mONT-CVG
6/16Sun
multi-stopAlaska Airlines
8h 42mCVG-ONT
$1,217
6/13Thu
multi-stopAlaska Airlines
11h 13mONT-CVG
6/16Sun
multi-stopAlaska Airlines
8h 42mCVG-ONT
$1,279

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Ontario - Cincinnati Flights

Departure:

Ontario (ONT)United States

Destination:

Cincinnati (CVG)United States

Return flight deals:

Cincinnati - Ontario

Cabin classes: