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$82+ 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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
CMH — ONT
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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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 August 14, 2025.

Round-trip from

$170
(FlightHub)

One-way from

$82
(Frontier)

Popular in

December

Cheapest in

February

Average price

$395
From Columbus to Ontario
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One-way flight from Columbus to Ontario
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Highest demand for flights based on searches. 12% potential increase in price ($60 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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 August 14, 2025.

This Mytrip deal was found by Cheapflights users on 8/13. 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.
Fri 10/38:34 pmCMH - ONT
1 stop26h 20mFrontier
Sun 10/53:43 pmONT - CMH
1 stop24h 56mFrontier
Deal found 8/13$183
This Frontier deal was found by Cheapflights users on 8/14. 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.
Fri 10/107:17 pmCMH - ONT
1 stop7h 33mFrontier
Thu 10/166:05 amONT - CMH
2 stops9h 04mFrontier
Deal found 8/14$196
This Frontier deal was found by Cheapflights users on 8/14. 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.
Mon 8/258:27 pmCMH - ONT
1 stop6h 23mFrontier
Sun 9/77:15 pmONT - CMH
2 stops19h 30mFrontier
Deal found 8/14$222
This Frontier deal was found by Cheapflights users on 8/14. 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 10/97:04 pmCMH - ONT
1 stop7h 46mFrontier
Thu 10/166:05 amONT - CMH
2 stops9h 04mFrontier
Deal found 8/14$232
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/912:53 pmCMH - ONT
1 stop12h 03mMultiple Airlines
Tue 9/168:00 amONT - CMH
1 stop11h 45mMultiple Airlines
Deal found 8/13$239
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/512:53 pmCMH - ONT
1 stop26h 50mMultiple Airlines
Mon 9/86:00 amONT - CMH
1 stop13h 45mMultiple Airlines
Deal found 8/13$240
This Frontier deal was found by Cheapflights users on 8/14. 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 10/97:04 pmCMH - ONT
1 stop7h 46mFrontier
Fri 10/106:05 amONT - CMH
2 stops9h 27mFrontier
Deal found 8/14$249
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/112:53 pmCMH - ONT
1 stop12h 03mMultiple Airlines
Tue 10/78:00 amONT - CMH
1 stop11h 45mMultiple Airlines
Deal found 8/11$253
This Frontier deal was found by Cheapflights users on 8/14. 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.
Mon 8/254:53 pmCMH - ONT
2 stops9h 57mFrontier
Mon 9/86:00 amONT - CMH
2 stops10h 39mFrontier
Deal found 8/14$255
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/912:53 pmCMH - ONT
1 stop12h 03mMultiple Airlines
Fri 9/1912:13 pmONT - CMH
2 stops29h 20mMultiple Airlines
Deal found 8/14$260

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 August 14, 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

Fri 10/3

8:34 pm-7:54 pm

1 stop26h 20m

Ontario

Sun 10/5

3:43 pm-7:39 pm

1 stop24h 56m

$183

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Fri 10/10

7:17 pm-11:50 pm

1 stop7h 33m

Ontario

Thu 10/16

6:05 am-6:09 pm

2 stops9h 04m

$196

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Mon 8/25

8:27 pm-11:50 pm

1 stop6h 23m

Ontario

Mon 9/8

6:00 am-7:39 pm

2 stops10h 39m

$222

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Mon 8/25

8:27 pm-11:50 pm

1 stop6h 23m

Ontario

Sun 9/7

7:15 pm-5:45 pm

2 stops19h 30m

$222

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Sun 10/12

7:08 pm-11:50 pm

1 stop7h 42m

Ontario

Thu 10/16

6:05 am-6:09 pm

2 stops9h 04m

$232

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Thu 10/9

7:04 pm-11:50 pm

1 stop7h 46m

Ontario

Thu 10/16

6:05 am-6:09 pm

2 stops9h 04m

$232

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Tue 9/9

12:53 pm-9:56 pm

1 stop12h 03m

Ontario

Tue 9/16

8:00 am-10:45 pm

1 stop11h 45m

$239

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Fri 9/5

12:53 pm-12:43 pm

1 stop26h 50m

Ontario

Mon 9/8

6:00 am-10:45 pm

1 stop13h 45m

$240

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Thu 10/9

7:04 pm-11:50 pm

1 stop7h 46m

Ontario

Fri 10/10

6:05 am-6:32 pm

2 stops9h 27m

$249

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Wed 10/1

12:53 pm-9:56 pm

1 stop12h 03m

Ontario

Tue 10/7

8:00 am-10:45 pm

1 stop11h 45m

$253

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 19 results
1
2

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 $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 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 August 14, 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.

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

Share of 1-stop round-trip flights from Columbus Airport to Ontario chosen by Cheapflights users in the past 12 months, using the same layover each way.

Dallas (DFW) – chosen by Cheapflights users on 50% of 1-stop itineraries from Columbus Airport to Ontario on Cheapflights.

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

Average round-trip fare for 1-stop flights from Columbus Airport to Ontario, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Dallas (DFW) is the most affordable 1-stop option, with an average round-trip price of $186.

What’s the fastest layover option from Columbus Airport to Ontario?

Shortest average travel time for 1-stop one-way flights from Columbus Airport to Ontario, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 6h 31m.

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

Average layover duration for 1-stop one-way flights from Columbus Airport to Ontario, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 1h 06m.

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 August 14, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Columbus Airport to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,244 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

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
4,244 reviews
Southwest
8.0
Very good
4,244 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

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.
Delta
8.0
Very good
7,980 reviews
Southwest
8.0
Very good
4,244 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

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.
United Airlines
7.4
Good
8,916 reviews
Southwest
8.0
Very good
4,244 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

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.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,244 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

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.

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 United Airlines is currently your cheapest option to Ontario, with prices starting at $228. Additional round-trip tickets that might be worth considering are offered by Delta and American Airlines, with the lowest prices starting at $276 and $324, respectively. These flights start at 45% lower than the current average price 3 months from now.

  • 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 $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.

See more FAQs

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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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$228Average$445FlexibilityNo cancel feeOn-time69%
DeltaCheapest$276Average$396FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$324Average$425FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$346Average$437FlexibilityNo cancel feeOn-time63%

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