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$116+ Cheap flights from Columbus 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
CMH — ONT
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 (C01) 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 September 17, 2025.

Round-trip from

$163
(Frontier)

One-way from

$116
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$259
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. 16% potential increase in price ($80 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 17, 2025.

This Frontier deal was found by Cheapflights users on 9/16. 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 10/237:04 pmCMH - ONT
1 stop7h 46mFrontier
Sun 10/266:53 amONT - CMH
1 stop8h 20mFrontier
Deal found 9/16$163
This Frontier deal was found by Cheapflights users on 9/15. 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 10/247:04 pmCMH - ONT
1 stop7h 46mFrontier
Mon 10/276:53 amONT - CMH
1 stop8h 16mFrontier
Deal found 9/15$199
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Wed 10/112:53 pmCMH - ONT
1 stop12h 03mMultiple Airlines
Wed 10/156:53 amONT - CMH
1 stop27h 05mMultiple Airlines
Deal found 9/14$222
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 9/3012:53 pmCMH - ONT
1 stop12h 03mMultiple Airlines
Sat 10/48:00 amONT - CMH
1 stop11h 45mMultiple Airlines
Deal found 9/15$223
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 9/3012:53 pmCMH - ONT
1 stop12h 03mMultiple Airlines
Wed 10/156:53 amONT - CMH
1 stop27h 05mMultiple Airlines
Deal found 9/14$225
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Sat 10/412:53 pmCMH - ONT
1 stop12h 03mMultiple Airlines
Wed 10/156:53 amONT - CMH
1 stop27h 05mMultiple Airlines
Deal found 9/14$226
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Sun 10/58:34 pmCMH - ONT
1 stop14h 19mFrontier
Mon 10/276:53 amONT - CMH
1 stop8h 16mFrontier
Deal found 9/14$227
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Mon 10/68:34 pmCMH - ONT
1 stop30h 16mFrontier
Mon 10/276:53 amONT - CMH
1 stop8h 16mFrontier
Deal found 9/14$232
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 9/3012:53 pmCMH - ONT
1 stop12h 03mMultiple Airlines
Sat 10/188:00 amONT - CMH
1 stop11h 34mMultiple Airlines
Deal found 9/14$238
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Wed 10/112:53 pmCMH - ONT
1 stop12h 03mMultiple Airlines
Sat 10/188:00 amONT - CMH
1 stop11h 34mMultiple Airlines
Deal found 9/14$239
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 9/3012:53 pmCMH - ONT
1 stop12h 03mMultiple Airlines
Thu 10/166:54 pmONT - CMH
1 stop24h 40mMultiple Airlines
Deal found 9/14$246

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 September 17, 2025.
Use the filters below to find and compare flights from Columbus to Ontario that are best for you.

Fly from

Columbus

Fly to

Ontario

Route

Depart

Return

Price

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Sat 11/1

11:09 am-10:41 pm

2 stops14h 32m

Ontario

Sat 11/8

7:35 am-11:38 pm

2 stops13h 03m

$310

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Wed 11/5

4:28 pm-10:22 pm

1 stop8h 54m

Ontario

Tue 11/11

10:25 pm-8:55 am

1 stop7h 30m

$317

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Tue 11/4

12:17 pm-7:19 pm

1 stop10h 02m

Ontario

Wed 11/12

11:45 am-12:18 am

1 stop9h 33m

$317

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Tue 11/4

8:10 am-12:14 pm

1 stop7h 04m

Ontario

Mon 11/10

1:20 pm-10:51 pm

1 stop6h 31m

$327

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Sat 11/8

8:10 am-12:16 pm

1 stop7h 06m

Ontario

Tue 11/11

10:25 pm-8:55 am

1 stop7h 30m

$327

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Mon 12/8

6:39 pm-11:03 pm

1 stop7h 24m

Ontario

Wed 12/10

1:20 pm-10:54 pm

1 stop6h 34m

$334

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Sat 11/1

6:24 pm-12:05 pm

1 stop20h 41m

Ontario

Sat 11/8

11:59 am-5:28 pm

1 stop26h 29m

$336

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Sat 11/8

8:10 am-12:16 pm

1 stop7h 06m

Ontario

Mon 11/10

1:20 pm-10:51 pm

1 stop6h 31m

$337

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Fri 11/7

8:03 pm-11:50 pm

1 stop6h 47m

Ontario

Mon 11/10

6:53 am-7:08 pm

1 stop9h 15m

$346

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Wed 11/5

4:28 pm-10:22 pm

1 stop8h 54m

Ontario

Wed 11/12

6:00 am-6:20 pm

2 stops9h 20m

$373

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 22 results
1
2
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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 to Ontario

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

Currently, August is the cheapest month in which you can book a flight from Columbus to Ontario (average of $246). Flying from Columbus to Ontario in March is currently the most expensive (average of $327). 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 September 17, 2025.

A simple way to save on the total cost of your ticket is to fly from Columbus 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.

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 September 17, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from Columbus to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

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
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

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
7,961 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

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
8,926 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

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
4,242 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

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?

    Located just 3.1 mi from the city center, Ontario is the airport most travelers will use when flying to Ontario from Columbus. Booking flights from Columbus to Ontario (ONT) should be relatively easy as there are 0 daily inbound flights from Columbus from 4 different airlines.

  • How long is the flight from Columbus to Ontario?

    Airlines like Delta fly from Columbus to Ontario in about 14h 32m. The time it takes to get you to your destination can typically vary by up to . The distance between Columbus and Ontario is about 1944 mi.

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

    Our cheapest airline available from Columbus to Ontario is United Airlines. Our recent data shows that you can find tickets from as low as $228 on this airline. Additional options worth looking into are Delta and American Airlines, starting at $276 and $296 round-trip. These flights start at 43% 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 to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Columbus to Ontario (average of $246). Flying from Columbus to Ontario in March is currently the most expensive (average of $327). 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 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$228Average$414FlexibilityNo cancel feeOn-time69%
DeltaCheapest$254Average$379FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$278Average$419FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$346Average$437FlexibilityNo cancel feeOn-time63%

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