HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$144+ Cheap flights from Columbus (CMH) to Ontario (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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
CMH — ONT
Mar 30 — Apr 61
Sun 3/30
Sun 4/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Columbus to Ontario 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.

Cheap flight deals from Columbus to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Columbus (CMH) 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 March 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$298
(Frontier)

One-way from

$144
(Trip.com)

Popular in

April

Cheapest in

February

Average price

$380
Provider with most accurate pricing for Columbus-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Columbus-Ontario flights.
Search Deals
From Columbus to Ontario
Search Deals
One-way flight from Columbus to Ontario
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($69 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find flight deals from Columbus to Ontario

Cheapest flights from Columbus to Ontario
Explore the most affordable flight options available from Columbus to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 25, 2025.

This Frontier deal was found by Cheapflights users on 3/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/225:21 pmCMH - ONT
1 stop9h 30mFrontier
Wed 5/2812:59 amONT - CMH
1 stop12h 25mFrontier
Deal found 3/24$298
This Southwest deal was found by Cheapflights users on 3/24. 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.
Thu 5/16:15 pmCMH - ONT
1 stop7h 45mSouthwest
Thu 5/223:55 pmONT - CMH
1 stop6h 00mSouthwest
Deal found 3/24$343
This Delta deal was found by Cheapflights users on 3/23. 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.
Sun 4/204:10 pmCMH - ONT
1 stop9h 26mDelta
Thu 4/241:20 pmONT - CMH
1 stop6h 36mDelta
Deal found 3/23$345
This American Airlines deal was found by Cheapflights users on 3/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/811:33 amCMH - ONT
2 stops9h 50mAmerican Airlines
Tue 5/1310:00 amONT - CMH
2 stops9h 51mAmerican Airlines
Deal found 3/24$353
This Alaska Airlines deal was found by Cheapflights users on 3/24. 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 9/166:30 amCMH - ONT
1 stop10h 36mAlaska Airlines
Tue 9/236:00 amONT - CMH
1 stop8h 37mAlaska Airlines
Deal found 3/24$387
This United Airlines deal was found by Cheapflights users on 3/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/38:55 amCMH - ONT
1 stop6h 36mUnited Airlines
Tue 6/106:00 amONT - CMH
1 stop6h 50mUnited Airlines
Deal found 3/24$428
This Hawaiian Airlines deal was found by Cheapflights users on 3/24. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/166:28 pmCMH - ONT
1 stop8h 45mHawaiian Airlines
Wed 8/206:00 amONT - CMH
1 stop8h 37mHawaiian Airlines
Deal found 3/24$438
This Orbitz deal was found by Cheapflights users on 3/24. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/16:31 pmCMH - ONT
1 stop8h 28mMultiple Airlines
Wed 5/2112:59 amONT - CMH
1 stop12h 25mMultiple Airlines
Deal found 3/24$521

Cheapflights Fare Finder

Customize your flight search to find flights from Columbus 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 March 25, 2025.
Use the filters below to find and compare flights from Columbus Airport to Ontario that are best for you.

Fly from

Columbus

Fly to

Ontario

Route

Depart

Return

Price

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Thu 5/22

5:21 pm-11:51 pm

1 stop9h 30m

Ontario

Wed 5/28

12:59 am-4:24 pm

1 stop12h 25m

$298

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Thu 5/1

6:15 pm-11:00 pm

1 stop7h 45m

Ontario

Thu 5/22

3:55 pm-12:55 am

1 stop6h 00m

$343

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Sun 4/20

4:10 pm-10:36 pm

1 stop9h 26m

Ontario

Thu 4/24

1:20 pm-10:56 pm

1 stop6h 36m

$345

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Thu 5/8

11:33 am-6:23 pm

2 stops9h 50m

Ontario

Tue 5/13

10:00 am-10:51 pm

2 stops9h 51m

$353

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Tue 9/16

6:30 am-2:06 pm

1 stop10h 36m

Ontario

Tue 9/23

6:00 am-5:37 pm

1 stop8h 37m

$387

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Tue 6/3

8:55 am-12:31 pm

1 stop6h 36m

Ontario

Tue 6/10

6:00 am-3:50 pm

1 stop6h 50m

$428

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Sat 8/16

6:28 pm-12:13 am

1 stop8h 45m

Ontario

Wed 8/20

6:00 am-5:37 pm

1 stop8h 37m

$438

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Thu 5/1

6:31 pm-11:59 pm

1 stop8h 28m

Ontario

Wed 5/21

12:59 am-4:24 pm

1 stop12h 25m

$521

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Wed 4/23

8:24 pm-7:20 am

1 stop13h 56m

$144

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Thu 4/24

6:31 pm-11:59 pm

1 stop8h 28m

$171

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 16 results
1
2

Compare providers for flights from Columbus 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 Columbus to Ontario in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

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

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

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

Currently, August is the cheapest month in which you can book a flight from Columbus Airport to Ontario (average of $246). Flying from Columbus Airport to Ontario in March is currently the most expensive (average of $324). 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 CMH to ONT?

Find hourly flight availability from Columbus 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 March 25, 2025.

A simple way to save on the total cost of your ticket is to fly from Columbus Airport to Ontario in the evening. If you’re flexible enough to do this you can expect to save up to 45% on your trip compared to booking a flight at noon.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

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.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

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).

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 March 25, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Columbus to Ontario. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,785 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.2

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Alaska Airlines
8.0
Very good
9,785 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.2

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Southwest
8.0
Very good
4,272 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.2

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Delta
8.0
Very good
7,890 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.2

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
Hawaiian Airlines
7.9
Good
2,330 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.2

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot
United Airlines
7.4
Good
8,605 reviews
Alaska Airlines
8.0
Very good
9,785 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.2

Food

7.1

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Related info for your journey

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

  • What airport do you fly into for flights to Ontario from Columbus?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Columbus. On average, Ontario has 0 inbound flights from Columbus per day from 4 airlines. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

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

    Flying on Frontier is currently your cheapest option to Ontario, with prices starting at $298. Additional round-trip tickets that might be worth considering are offered by Southwest and Delta, with the lowest prices starting at $343 and $345, respectively. These flights start at 34% lower than the current average price 3 months from now.

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

    The cheapest airline one-way is Alaska Airlines, with whom users have recently found tickets for as low as $171. However, be on the lookout for offers from Southwest and American Airlines, as they are both options that can get you from Columbus Airport to Ontario for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Columbus 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 Columbus Airport to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Columbus Airport to Ontario (average of $246). Flying from Columbus Airport to Ontario in March is currently the most expensive (average of $324). 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

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

Top 4 airlines flying from Columbus to Ontario

Discover the top 4 airlines that operate flights from Columbus 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 March 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$306Average$511FlexibilityNo cancel feeOn-time69%
DeltaCheapest$308Average$416FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$342Average$488FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$355Average$446FlexibilityNo cancel feeOn-time63%
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.