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$76+ Cheap flights from Cincinnati to Ontario (CVG - ONT)

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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
CVG — ONT
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
1 adult, Economy
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Cheapflights Tip: The best prices from Cincinnati Cinci./N. Kentucky to Ontario are usually found in January or March, booked 27 days in advance, depart on a Thursday or Sunday and return on a Wednesday

Cheap flight deals from Cincinnati to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Cincinnati (CVG) to Ontario (ONT). 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 July 1, 2025.

Round-trip from

$153
(Priceline)

One-way from

$76
(Priceline)

Popular in

December

Cheapest in

January

Average price

$436
From Cincinnati Cinci./N. Kentucky to Ontario
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One-way flight from Cincinnati Cinci./N. Kentucky to Ontario
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Highest demand for flights based on searches. 1% potential increase in price ($4 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Cincinnati to Ontario

Cheapest flights from Cincinnati to Ontario
Explore the most affordable flight options available from Cincinnati to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.

This Mytrip deal was found by Cheapflights users on 6/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/127:15 amCVG - ONT
1 stop28h 54mFrontier
Fri 8/1512:59 amONT - CVG
1 stop20h 55mFrontier
Deal found 6/30$205
This Alaska Airlines deal was found by Cheapflights users on 6/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/296:37 pmCVG - ONT
1 stop8h 38mAlaska Airlines
Sat 8/166:51 pmONT - CVG
1 stop9h 16mAlaska Airlines
Deal found 6/29$279
This Southwest deal was found by Cheapflights users on 6/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/207:05 amCVG - ONT
2 stops10h 15mSouthwest
Tue 9/3010:55 amONT - CVG
1 stop8h 30mSouthwest
Deal found 6/30$284
This Delta deal was found by Cheapflights users on 6/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/202:37 pmCVG - ONT
2 stops11h 06mDelta
Tue 9/306:00 amONT - CVG
2 stops10h 34mDelta
Deal found 6/30$289

Cheapflights Fare Finder

Customize your flight search to find flights from Cincinnati to Ontario 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 July 1, 2025.
Use the filters below to find and compare flights from Cincinnati to Ontario that are best for you.

Fly from

Cincinnati

Fly to

Ontario

Route

Depart

Return

Price

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 8/12

7:15 am-9:09 am

1 stop28h 54m

Ontario

Fri 8/15

12:59 am-12:54 am

1 stop20h 55m

$205

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 7/29

6:37 pm-12:15 am

1 stop8h 38m

Ontario

Sat 8/16

6:51 pm-7:07 am

1 stop9h 16m

$279

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 9/20

7:05 am-2:20 pm

2 stops10h 15m

Ontario

Tue 9/30

10:55 am-10:25 pm

1 stop8h 30m

$284

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 9/20

2:37 pm-10:43 pm

2 stops11h 06m

Ontario

Tue 9/30

6:00 am-7:34 pm

2 stops10h 34m

$289

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 8/4

6:08 pm-11:50 pm

1 stop8h 42m

$79

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Wed 8/13

6:37 pm-12:15 am

1 stop8h 38m

$139

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Wed 8/20

7:00 am-9:58 am

1 stop5h 58m

$140

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Fri 7/18

6:15 am-11:50 pm

1 stop20h 35m

$152

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Best time to book a flight from Cincinnati to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Cincinnati 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 Cincinnati to Ontario

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

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

The best time to book flights from Cincinnati to Ontario is 26 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from Cincinnati to Ontario (average of $246). Flying from Cincinnati to Ontario in March is currently the most expensive (average of $328). 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 CVG to ONT?

Find hourly flight availability from Cincinnati to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 1, 2025.

A simple way to save on the total cost of your ticket is to fly from Cincinnati to Ontario at noon. If you’re flexible enough to do this you can expect to save up to 27% on your trip compared to booking a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Cincinnati to Ontario. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Cincinnati to Ontario flight should consider departing on Saturday at noon when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated July 1, 2025.
Read through reviews of airlines operating flights from Cincinnati to Ontario, such as Alaska Airlines, Delta, and Hawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.1

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

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,974 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.1

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
2,538 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.1

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

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

Boarding

8.1

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 Cincinnati to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Cincinnati to Ontario round-trip?

    According to our current data, Frontier ($153), Hawaiian Airlines ($249), and Alaska Airlines ($279) offers the cheapest pricing from Cincinnati to Ontario. You may be able to fly from Cincinnati to Ontario for 60% less than the average price by searching for these airlines.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $76. Alaska Airlines flights start at $139 while deals on Delta start at $140 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Cincinnati to Ontario 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 Cincinnati to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Cincinnati to Ontario (average of $246). Flying from Cincinnati to Ontario in March is currently the most expensive (average of $328). 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.

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Top 5 airlines flying from Cincinnati to Ontario

Discover the top 5 airlines that operate flights from Cincinnati to Ontario. 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 July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$148Average$267FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$254Average$411FlexibilityNo cancel feeOn-time71%
DeltaCheapest$312Average$454FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$318Average$442FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$377Average$429FlexibilityNo cancel feeOn-time63%

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