What’s the top layover airport for flights from Cincinnati to Ontario?

Las Vegas (LAS) – chosen by Cheapflights users on 67% of 1-stop itineraries from Cincinnati to Ontario on Cheapflights.

What’s the cheapest layover airport for flights from Cincinnati to Ontario?

Las Vegas (LAS) is the most affordable 1-stop option, with an average round-trip price of $168.

What’s the fastest layover option from Cincinnati to Ontario?

Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 6h 25m.

Which airport typically offers the quickest layover for flights from Cincinnati to Ontario?

Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 1h 13m.

How long is the flight from Cincinnati to Ontario?

There are many flights that can get you from Cincinnati to Ontario in 10h 08m. Fly via Frontier, Delta, or Alaska Airlines to get the fastest option. The distance from Cincinnati to Ontario is about 1849 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

According to our current data, Frontier ($148), American Airlines ($250), and Delta ($312) 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 $106. Delta flights start at $148 while deals on Alaska Airlines start at $159 one-way.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

What are the most popular airlines that fly from Cincinnati to Ontario?

American Airlines, Frontier and Delta are the most popular airlines when flying from Cincinnati to Ontario.

Most accurate provider : When it comes to deals on Cincinnati-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Cincinnati-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Cincinnati-Ontario flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Cincinnati-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Cincinnati-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

$62+ Flights from Cincinnati to Ontario

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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.

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Cheapflights Tip: The best prices from Cincinnati Cinci./N. Kentucky to Ontario are usually found in January or March, booked 26 days in advance, depart on a Thursday or Sunday and return on a Wednesday

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 October 20, 2025.

Tue 10/286:05 amCVG - ONT

1 stop20h 45mFrontier

Tue 11/188:45 amONT - CVG

1 stop10h 23mFrontier

Deal found 10/19

$150

Mon 11/171:27 pmCVG - ONT

1 stop13h 23mFrontier

Wed 11/1912:58 amONT - CVG

1 stop6h 48mFrontier

Deal found 10/19

$170

Wed 11/129:30 pmCVG - ONT

1 stop27h 27mFrontier

Mon 11/176:53 amONT - CVG

1 stop10h 27mFrontier

Deal found 10/19

$172

Mon 10/276:05 amCVG - ONT

1 stop6h 30mFrontier

Tue 11/188:45 amONT - CVG

1 stop10h 23mFrontier

Deal found 10/20

$182

Thu 11/139:30 pmCVG - ONT

1 stop27h 27mFrontier

Sun 11/166:53 amONT - CVG

1 stop15h 46mFrontier

Deal found 10/19

$184

Mon 10/276:05 amCVG - ONT

1 stop6h 30mFrontier

Sat 11/112:05 pmONT - CVG

1 stop8h 54mFrontier

Deal found 10/19

$194

Thu 12/46:10 amCVG - ONT

1 stop7h 59mFrontier

Thu 12/1112:04 pmONT - CVG

1 stop22h 09mFrontier

Deal found 10/19

$196

Sat 11/15:43 pmCVG - ONT

2 stops21h 27mFrontier

Sat 11/86:53 amONT - CVG

1 stop14h 06mFrontier

Deal found 10/19

$200

Mon 11/33:22 pmCVG - ONT

1 stop11h 28mFrontier

Fri 11/76:53 amONT - CVG

1 stop10h 27mFrontier

Deal found 10/19

$202

Fri 12/56:10 amCVG - ONT

1 stop11h 15mFrontier

Thu 12/1112:04 pmONT - CVG

1 stop22h 09mFrontier

Deal found 10/19

$204

Best flights from Cincinnati to Ontario
Discover carefully curated flight deals from Cincinnati to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 20, 2025.

Sat 11/11:27 pmCVG - ONT

1 stop13h 23mFrontier

Wed 11/58:00 amONT - CVG

1 stop19h 54mFrontier

Deal found 10/18

$172

Thu 12/46:30 amCVG - ONT

1 stop19h 17mDelta

Mon 12/812:40 pmONT - CVG

1 stop27h 03mDelta

Deal found 10/19

$315

Tue 1/278:00 amCVG - ONT

1 stop10h 08mAlaska Airlines

Thu 1/296:00 amONT - CVG

1 stop10h 43mAlaska Airlines

Deal found 10/19

$338

Sat 2/218:00 amCVG - ONT

1 stop17h 37mAlaska Airlines

Sat 2/286:00 amONT - CVG

1 stop8h 10mAlaska Airlines

Deal found 10/19

$342

Fri 12/1211:59 amCVG - ONT

2 stops13h 48mDelta

Sat 12/136:00 amONT - CVG

1 stop6h 10mDelta

Deal found 10/19

$346

Thu 1/16:39 pmCVG - ONT

1 stop8h 35mAlaska Airlines

Tue 1/66:00 amONT - CVG

1 stop8h 39mAlaska Airlines

Deal found 10/19

$351

Thu 12/46:56 pmCVG - ONT

1 stop7h 08mDelta

Thu 12/116:00 amONT - CVG

1 stop6h 10mDelta

Deal found 10/19

$359

Thu 12/48:05 amCVG - ONT

1 stop7h 29mDelta

Sun 12/71:29 pmONT - CVG

1 stop6h 25mDelta

Deal found 10/19

$361

Sun 3/18:00 amCVG - ONT

1 stop17h 37mAlaska Airlines

Sat 3/76:00 amONT - CVG

1 stop8h 10mAlaska Airlines

Deal found 10/19

$362

Mon 1/126:55 pmCVG - ONT

1 stop6h 57mDelta

Fri 1/166:45 amONT - CVG

1 stop9h 01mDelta

Deal found 10/19

$361

Last-minute flights from Cincinnati to Ontario
Discover last-minute flight deals from Cincinnati to Ontario. Data last updated October 20, 2025 and is based on user searches.

Mon 10/276:05 amCVG - ONT

1 stop6h 30mFrontier

Tue 11/188:45 amONT - CVG

1 stop10h 23mFrontier

Deal found 10/20

$182

Mon 10/276:05 amCVG - ONT

1 stop6h 30mFrontier

Sat 11/112:05 pmONT - CVG

1 stop8h 54mFrontier

Deal found 10/19

$194

Mon 10/276:05 amCVG - ONT

1 stop6h 30mFrontier

Mon 11/176:53 amONT - CVG

1 stop10h 27mFrontier

Deal found 10/20

$208

Tue 10/286:05 amCVG - ONT

1 stop20h 45mFrontier

Tue 11/188:45 amONT - CVG

1 stop10h 23mFrontier

Deal found 10/19

$150

Wed 10/296:05 amCVG - ONT

1 stop20h 45mFrontier

Thu 10/306:53 amONT - CVG

1 stop15h 46mFrontier

Deal found 10/19

$196

Sat 11/15:43 pmCVG - ONT

2 stops21h 27mFrontier

Sat 11/86:53 amONT - CVG

1 stop14h 06mFrontier

Deal found 10/19

$200

Mon 11/33:22 pmCVG - ONT

1 stop11h 28mFrontier

Fri 11/76:53 amONT - CVG

1 stop10h 27mFrontier

Deal found 10/19

$202

Mon 11/33:22 pmCVG - ONT

1 stop11h 28mFrontier

Sat 11/812:05 pmONT - CVG

1 stop8h 54mFrontier

Deal found 10/18

$210

Wed 11/129:30 pmCVG - ONT

1 stop27h 27mFrontier

Mon 11/176:53 amONT - CVG

1 stop10h 27mFrontier

Deal found 10/19

$172

Thu 11/139:30 pmCVG - ONT

1 stop27h 27mFrontier

Sun 11/166:53 amONT - CVG

1 stop15h 46mFrontier

Deal found 10/19

$184

Mon 11/171:27 pmCVG - ONT

1 stop13h 23mFrontier

Wed 11/1912:58 amONT - CVG

1 stop6h 48mFrontier

Deal found 10/19

$170

One-way flights from Cincinnati to Ontario
Search for one-way flight options from Cincinnati to Ontario. Find affordable one-way fares based on user searches. Data last updated October 20, 2025.

Sat 11/159:52 amCVG - ONT

1 stop16h 58mFrontier

Deal found 10/19

$62

Wed 11/1910:24 amCVG - ONT

1 stop14h 03mFrontier

Deal found 10/18

$66

Tue 11/410:24 amCVG - ONT

1 stop14h 03mFrontier

Deal found 10/19

$67

Fri 1/96:15 amCVG - ONT

1 stop20h 44mFrontier

Deal found 10/18

$68

Sat 11/11:27 pmCVG - ONT

1 stop13h 23mFrontier

Deal found 10/18

$72

Thu 1/86:15 amCVG - ONT

1 stop20h 44mFrontier

Deal found 10/19

$75

Tue 11/1110:24 amCVG - ONT

1 stop14h 05mFrontier

Deal found 10/19

$82

Thu 11/612:01 pmCVG - ONT

1 stop9h 48mFrontier

Deal found 10/19

$85

Sat 11/83:47 pmCVG - ONT

1 stop11h 03mFrontier

Deal found 10/19

$91

Wed 11/1210:24 amCVG - ONT

1 stop14h 05mFrontier

Deal found 10/19

$92

Tue 10/286:05 amCVG - ONT

1 stop20h 45mFrontier

Deal found 10/19

$94

Cheap flight deals from Cincinnati to Ontario

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$170 (Frontier)
One-way from	$62 (Trip.com)
Popular in	June
Cheapest in	January
Average price	$379

Provider with most accurate pricing for Cincinnati Cinci./N. Kentucky-Ontario flight deals.

Search Deals

Provider most trusted by Cheapflights users for Cincinnati Cinci./N. Kentucky-Ontario flights.

Search Deals

From Cincinnati Cinci./N. Kentucky to Ontario

Search Deals

One-way flight from Cincinnati Cinci./N. Kentucky to Ontario

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($39 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 11/1

1:27 pm-11:50 pm

1 stop13h 23m

Ontario

Wed 11/5

8:00 am-6:54 am

1 stop19h 54m

$172

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 12/4

6:30 am-10:47 pm

1 stop19h 17m

Ontario

Mon 12/8

12:40 pm-6:43 pm

1 stop27h 03m

$315

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Tue 1/27

8:00 am-3:08 pm

1 stop10h 08m

Ontario

Thu 1/29

6:00 am-7:43 pm

1 stop10h 43m

$338

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sat 2/21

8:00 am-10:37 pm

1 stop17h 37m

Ontario

Sat 2/28

6:00 am-5:10 pm

1 stop8h 10m

$342

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Fri 12/12

11:59 am-10:47 pm

2 stops13h 48m

Ontario

Sat 12/13

6:00 am-3:10 pm

1 stop6h 10m

$346

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 1/1

6:39 pm-12:14 am

1 stop8h 35m

Ontario

Tue 1/6

6:00 am-5:39 pm

1 stop8h 39m

$351

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 12/4

6:56 pm-11:04 pm

1 stop7h 08m

Ontario

Thu 12/11

6:00 am-3:10 pm

1 stop6h 10m

$359

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 12/4

8:05 am-12:34 pm

1 stop7h 29m

Ontario

Sun 12/7

1:29 pm-10:54 pm

1 stop6h 25m

$361

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Mon 1/12

6:55 pm-10:52 pm

1 stop6h 57m

Ontario

Fri 1/16

6:45 am-6:46 pm

1 stop9h 01m

$361

CincinnatiOntario

CVG - ONT

CVGONT

Cincinnati Cinci./N. Kentucky

Sun 3/1

8:00 am-10:37 pm

1 stop17h 37m

Ontario

Sat 3/7

6:00 am-5:10 pm

1 stop8h 10m

$362

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/19

Showing 1-10 of 22 results

Compare providers for flights from Cincinnati to Ontario

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Cincinnati to Ontario in October.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
JustAirTicket	Price Accuracy-	Trust Score*3 stars
Cheapfaremart	Price Accuracy-	Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Cincinnati-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Cincinnati-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Cincinnati-Ontario flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Cincinnati-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Cincinnati-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Prices

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

Currently, May is the cheapest month in which you can book a flight from Cincinnati to Ontario (average of $93). Flying from Cincinnati to Ontario in April is currently the most expensive (average of $166). 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?

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 26% on your trip compared to booking a flight in the afternoon.

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

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

Read through reviews of airlines operating flights from Cincinnati to Ontario, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,239 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Southwest

8.0

Very good

4,239 reviews

Southwest

8.0

Very good

4,239 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Delta

7.9

Good

7,978 reviews

Southwest

8.0

Very good

4,239 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

United Airlines

7.4

Good

8,991 reviews

Southwest

8.0

Very good

4,239 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

American Airlines

7.2

Good

11,024 reviews

Southwest

8.0

Very good

4,239 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Frontier

5.8

Fair

3,130 reviews

Southwest

8.0

Very good

4,239 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Related info for your journey

How long is the flight from Cincinnati to Ontario?
There are many flights that can get you from Cincinnati to Ontario in 10h 08m. Fly via Frontier, Delta, or Alaska Airlines to get the fastest option. The distance from Cincinnati to Ontario is about 1849 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines flying from Cincinnati to Ontario round-trip?
According to our current data, Frontier ($148), American Airlines ($250), and Delta ($312) 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 $106. Delta flights start at $148 while deals on Alaska Airlines start at $159 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, May is the cheapest month in which you can book a flight from Cincinnati to Ontario (average of $93). Flying from Cincinnati to Ontario in April is currently the most expensive (average of $166). 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

Browse thousands of different options on Cheapflights for your next trip

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Other flights to Ontario

Top 5 airlines flying from Cincinnati to Ontario

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$148	Average$254	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$250	Average$378	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$312	Average$403	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$316	Average$442	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$321	Average$426	FlexibilityNo cancel fee	On-time63%

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$62+ 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Cincinnati to Ontario with Cheapflights

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Cheapflights Tip: The best prices from Cincinnati Cinci./N. Kentucky to Ontario are usually found in January or March, booked 26 days in advance, depart on a Thursday or Sunday and return on a Wednesday

Find flight deals from Cincinnati to Ontario

Cheapest flights from Cincinnati to OntarioExplore 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 October 20, 2025.

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 October 20, 2025.

Cheap flight deals from Cincinnati to Ontario

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Cincinnati to Ontario that are best for you.

Compare providers for flights from Cincinnati to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Cincinnati to Ontario in October.

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.

Cheapflights Insights

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

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

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

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

What’s the top layover airport for flights from Cincinnati to Ontario?

What’s the fastest layover option from Cincinnati to Ontario?

What’s the fastest layover option from Cincinnati to Ontario?

Which airport typically offers the quickest layover for flights from Cincinnati to Ontario?

Reviews of airlines servicing Ontario

Read through reviews of airlines operating flights from Cincinnati to Ontario, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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.

How long is the flight from Cincinnati to Ontario?

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

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

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

How can I find direct flights from Cincinnati to Ontario?

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

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Cincinnati to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Cincinnati to Ontario

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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 October 20, 2025.