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ONT - CVG

$45 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 5/21. 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
Sun 5/26
Sun 6/2

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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 44,335,567 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 - 10:18 amONT-CVG
6h 19m1 stop
5:30 am - 1:24 pmCVG-ONT
10h 54m1 stop
$120Frontier
Find Deal
Sun, May 19 - Tue, May 21
12:55 am - 11:16 amONT-CVG
7h 21m1 stop
2:01 pm - 9:04 amCVG-ONT
22h 03m1 stop
$152Frontier
Find Deal
Fri, May 10 - Fri, May 17
10:58 pm - 12:58 pmONT-CVG
11h 00m1 stop
5:25 am - 9:29 amCVG-ONT
7h 04m1 stop
$154Frontier
Find Deal
Thu, May 9 - Sun, May 12
10:00 pm - 8:34 amONT-CVG
7h 34m1 stop
1:40 pm - 7:42 pmCVG-ONT
9h 02m1 stop
$310Delta
Find Deal
Wed, Jul 10 - Tue, Jul 16
5:35 am - 3:57 pmONT-CVG
7h 22m1 stop
4:34 pm - 11:43 pmCVG-ONT
10h 09m2 stops
$315Delta
Find Deal
Thu, Jul 4 - Tue, Jul 9
12:53 pm - 11:58 pmONT-CVG
8h 05m2 stops
6:07 pm - 11:56 pmCVG-ONT
8h 49m1 stop
$355American Airlines
Find Deal
Sat, May 25 - Sat, Jun 1
11:00 pm - 10:29 amONT-CVG
8h 29m1 stop
3:59 pm - 9:44 pmCVG-ONT
8h 45m2 stops
$365American Airlines
Find Deal
Fri, Sep 6 - Mon, Sep 9
6:00 am - 6:10 pmONT-CVG
9h 10m1 stop
12:15 pm - 8:00 pmCVG-ONT
10h 45m1 stop
$493Southwest
Find Deal
Sun, May 12 - Thu, May 16
6:25 pm - 10:24 pmONT-CVG
24h 59m1 stop
3:41 pm - 8:48 pmCVG-ONT
8h 07m1 stop
$556United Airlines
Find Deal
Mon, Jun 3 - Wed, Jun 5
5:15 am - 10:35 pmONT-CVG
14h 20m1 stop
9:00 am - 8:53 pmCVG-ONT
14h 53m2 stops
$581United Airlines
Find Deal
Tue, May 7 - Sat, May 11

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, Monday 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 $264 on average. On the other hand, the most expensive months are December and November, where the average cost of tickets is $448 and $415 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 88 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 ($45) and Delta ($155), and the lowest round-trip tickets were found on Frontier ($120) and Delta ($310).

Good to know

Low season

February

High season

July

Cheapest flight

$45
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 30% 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 $45 for a one-way ticket and $120 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 $440 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 10966 reviews
8.0entertainment
7.9comfort
8.2boarding
8.6crew
7.4food
Airline reviews

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

6.0 GoodEliza, Apr 2024SAN - LAX
Read more about Delta reviews

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

Great, on time departure, friendly and accommodating crew, great leg room, Smith flight

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

Aircraft very cramped. Check-in was great with an agent helping us. Food was almost non-existent. Pre-flight went well once I got the app reloaded on my phone since we don’t fly much anymore.

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.

My TSA number was missing from my ticket which shouldn’t have happened since it’s in my file. The on board flight attendant who was a male, did not want to help me put my luggage in the overhead bin and made a very rude comment and was very unpleasant. The good… the woman who fixed my ticket with the TSA number was excellent and I had extra legroom which was perfect.

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.

Awful. I got stuck next to a person carrying a dog and behind someone with a dog. People need to board these dogs downstairs. The cabin is crowded enough with your pets

Packed in like sardines, very uncomfortable. Sitting the aisle my shoulder was rammed into numerous times by rushing flight attendants. Also flight was very cold.

the head jack on my seat didn't work and the power outlet didn't work for my seat

Left 2 hours later for delayed I had to take care a kid with special need since people don’t want to move to accommodate the rest of the family. . It wasn’t bad but that made me upset that people can be that selfish.

For a 22 minute flight all you expect is for it to be safe and comfortable

Flight was on time. Staff were friendly. I paid for Economy Plus but was required to check my standard carry-on luggage due to lack of space on the aircraft. This cost me 30 minutes, unexpectedly, in waiting at the baggage claim. This experience did not meet my expectations.

Wouldn’t let me check in said couldn’t find a ticket had to wait very long Time

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!

We are gluten free, there were not any available complimentary gluten free options.

Don't often sit in 1st class. Our experience was great.

No meal on a cross country flight? SFO-MiA is pretty much the definition of a coast to coast flight. No meal provided. Sky high wi-fi rates too. Stop nickel and diming your customers.

The staff was unprofessional and didn’t communicate very well. The boarding process was very disheveled, potentially due to a power outage the previous day but there was no contingency plan to properly get passengers boarded the following day. Once boarded the aircraft stayed on the tarmac for over 45 minutes due to high winds. The communication was sporadic but an announcement was finally made an additional 30 minutes later that the flight was cancelled but we couldn’t get off the plane. Prior to deplaning one of the gate agents came on the plane and made an announcement for everyone to pickup their checked bags and take a card to rebook a new reservation because they didn’t have adequate staff. Flights were missed, passengers went to different airports and there was little to no assistance from AA.

Apart from the delay due to unforeseen circumstances. The leg from sjc to dfw was fine. It was the leg from dfw to orf that we encountered issues mainly due to the flight attendant crew not being friendly. We had two small children and we needed some assistance to warm up milk so the baby would sleep. The crew just didn’t get it and made things very difficult. One made a remark that the baby’s dirty diaper smell was a “gift” to the plane in a rude way. Normally I’d brush that off as a funny comment if the rest of the trip the attendants were helpful or understanding of the difficulty we faced. But that wasn’t the case. We were met with rudeness on the second leg. Whereas on the first leg the crew were so nice and helpful.

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.

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Terrible. Seats are bad and the baggage policy is inconsistent

Better than I expected but I did pay for a seat and carry on bags ahead of time.

I hope to avoid flying with them in the future. First flight got cancelled then got stuck with a 13 hour layover in Denver. The process was long and frustrating to many people.

Flight was delayed on the runway for 40 minutes the crew did not even offer even water to passengers to compensate for the flight delayed. The flight was delayed due to aircraft mechanical issues. Worst customer service ever

The flight was delayed and I had to cancel because I would have missed my connection and there were no other flights for the next two days. They also lost my bag!!

The flight was canceled, then delayed twice, we were moved gates twice. Short staff at the counter and check in. We waited for our flight 9 hours. Will never use Frontier ever again, or Spirit.

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.
5/21Tue
1 stopFrontier
6h 19mONT-CVG
$45
5/19Sun
1 stopFrontier
6h 19mONT-CVG
$75
5/31Fri
1 stopDelta
8h 26mONT-CVG
$155
8/3Sat
1 stopDelta
7h 34mONT-CVG
$158
5/22Wed
2 stopsAmerican Airlines
8h 05mONT-CVG
$160
5/25Sat
1 stopAmerican Airlines
7h 41mONT-CVG
$174
5/25Sat
2 stopsUnited Airlines
17h 00mONT-CVG
$226
5/13Mon
1 stopAlaska Airlines
8h 49mONT-CVG
$244
5/10Fri
2 stopsAlaska Airlines
11h 19mONT-CVG
$258
5/15Wed
2 stopsUnited Airlines
15h 31mONT-CVG
$274

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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.
4/29Mon
multi-stopFrontier
17h 22mONT-CVG
5/4Sat
multi-stopFrontier
11h 05mCVG-ONT
$227
4/29Mon
multi-stopFrontier
17h 22mONT-CVG
5/4Sat
multi-stopFrontier
19h 12mCVG-ONT
$233
5/1Wed
multi-stopFrontier
21h 59mONT-CVG
5/4Sat
multi-stopFrontier
14h 04mCVG-ONT
$235
4/29Mon
multi-stopUnited Airlines
13h 40mONT-CVG
5/4Sat
multi-stopUnited Airlines
14h 49mCVG-ONT
$663
4/29Mon
multi-stopUnited Airlines
13h 40mONT-CVG
5/4Sat
multi-stopUnited Airlines
14h 53mCVG-ONT
$667
4/29Mon
multi-stopDelta
8h 17mONT-CVG
4/30Tue
multi-stopDelta
9h 06mCVG-ONT
$706
4/27Sat
multi-stopAmerican Airlines
9h 33mONT-CVG
4/28Sun
multi-stopAmerican Airlines
7h 56mCVG-ONT
$709
4/27Sat
multi-stopDelta
10h 58mONT-CVG
4/28Sun
multi-stopDelta
8h 32mCVG-ONT
$716
4/27Sat
multi-stopAlaska Airlines
12h 49mONT-CVG
4/30Tue
multi-stopAlaska Airlines
14h 02mCVG-ONT
$794
4/28Sun
multi-stopAlaska Airlines
8h 49mONT-CVG
4/30Tue
multi-stopAlaska Airlines
14h 02mCVG-ONT
$811

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Ontario - Cincinnati Flights

Departure:

Ontario (ONT)United States

Destination:

Cincinnati (CVG)United States

Return flight deals:

Cincinnati - Ontario

Cabin classes: