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$90+ 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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
CMH — ONT
Feb 18 — Feb 251
Wed 2/18
Wed 2/25
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 January 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$189
(Kiwi.com)

One-way from

$90
(Frontier)

Popular in

December

Cheapest in

September

Average price

$395
Provider with most accurate pricing for Columbus-Ontario flight deals.
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Provider most trusted by Cheapflights users for Columbus-Ontario flights.
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From Columbus to Ontario
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One-way flight from Columbus to Ontario
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 19, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/17. 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 2/158:09 pm
CMH
-
ONT
1 stop30h 50m
Frontier
Thu 2/196:05 am
ONT
-
CMH
1 stop10h 18m
Frontier
Deal found 1/17$189
This Frontier deal was found by Cheapflights users on 1/16. 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.
Mon 2/168:13 pm
CMH
-
ONT
1 stop6h 46m
Frontier
Thu 2/266:05 am
ONT
-
CMH
1 stop10h 18m
Frontier
Deal found 1/16$209
This Kiwi.com deal was found by Cheapflights users on 1/17. 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 2/158:09 pm
CMH
-
ONT
1 stop30h 50m
Multiple Airlines
Thu 2/192:06 pm
ONT
-
CMH
2 stops16h 53m
Multiple Airlines
Deal found 1/17$226
This Kiwi.com deal was found by Cheapflights users on 1/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/912:03 pm
CMH
-
ONT
2 stops15h 17m
Frontier
Thu 2/196:05 am
ONT
-
CMH
1 stop10h 18m
Frontier
Deal found 1/16$228
This Kiwi.com deal was found by Cheapflights users on 1/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/912:03 pm
CMH
-
ONT
2 stops15h 17m
Frontier
Sun 2/156:10 am
ONT
-
CMH
1 stop10h 14m
Frontier
Deal found 1/16$230
This Kiwi.com deal was found by Cheapflights users on 1/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/158:09 pm
CMH
-
ONT
1 stop30h 50m
Multiple Airlines
Sat 2/218:21 am
ONT
-
CMH
2 stops23h 11m
Multiple Airlines
Deal found 1/16$234
This Kiwi.com deal was found by Cheapflights users on 1/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/108:02 pm
CMH
-
ONT
2 stops40h 32m
Frontier
Thu 2/196:05 am
ONT
-
CMH
1 stop10h 18m
Frontier
Deal found 1/16$235
This Kiwi.com deal was found by Cheapflights users on 1/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/812:08 pm
CMH
-
ONT
2 stops29h 19m
Frontier
Thu 2/196:05 am
ONT
-
CMH
1 stop10h 18m
Frontier
Deal found 1/16$241
This Kiwi.com deal was found by Cheapflights users on 1/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/158:09 pm
CMH
-
ONT
1 stop30h 50m
Frontier
Thu 2/262:08 pm
ONT
-
CMH
2 stops17h 24m
Frontier
Deal found 1/16$242
This Kiwi.com deal was found by Cheapflights users on 1/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/812:08 pm
CMH
-
ONT
2 stops29h 19m
Frontier
Sun 2/156:10 am
ONT
-
CMH
1 stop10h 14m
Frontier
Deal found 1/16$243
This Frontier deal was found by Cheapflights users on 1/16. 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.
Mon 2/168:13 pm
CMH
-
ONT
1 stop6h 46m
Frontier
Sun 3/16:10 am
ONT
-
CMH
1 stop10h 14m
Frontier
Deal found 1/16$244

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 January 19, 2026.
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

Sun 2/15

8:09 pm-11:59 pm

1 stop30h 50m

Ontario

Thu 2/19

6:05 am-7:23 pm

1 stop10h 18m

$233

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Wed 3/18

7:00 am-12:18 pm

1 stop8h 18m

Ontario

Wed 3/25

1:50 pm-10:42 pm

1 stop5h 52m

$257

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Tue 2/10

7:30 am-12:16 pm

1 stop7h 46m

Ontario

Tue 2/17

10:20 pm-10:06 am

1 stop8h 46m

$277

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Wed 5/13

5:45 pm-10:09 pm

1 stop7h 24m

Ontario

Sat 5/16

10:59 pm-8:58 am

1 stop6h 59m

$277

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Wed 5/13

5:45 pm-10:09 pm

1 stop7h 24m

Ontario

Tue 5/19

10:59 pm-8:58 am

1 stop6h 59m

$277

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Tue 2/10

7:30 am-12:16 pm

1 stop7h 46m

Ontario

Wed 2/18

6:00 am-5:13 pm

2 stops8h 13m

$282

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Sat 4/11

7:07 am-11:47 am

1 stop7h 40m

Ontario

Sat 4/18

10:15 pm-9:56 am

2 stops8h 41m

$282

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Tue 2/17

7:30 am-12:07 pm

1 stop7h 37m

Ontario

Fri 2/27

1:10 pm-10:41 pm

1 stop6h 31m

$326

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Mon 2/9

7:30 am-12:16 pm

1 stop7h 46m

Ontario

Wed 2/18

10:20 pm-10:06 am

1 stop8h 46m

$326

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Thu 5/14

12:50 pm-6:15 pm

1 stop8h 25m

Ontario

Tue 5/19

10:59 pm-8:58 am

1 stop6h 59m

$326

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

Showing 1-10 of 22 results
1
2
3

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars
JustAirTicketPrice 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 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 Expedia the most. Expedia 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, May is the cheapest month in which you can book a flight from Columbus Airport to Ontario (average of $112). Flying from Columbus Airport to Ontario in March is currently the most expensive (average of $249). 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.

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 January 19, 2026.
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
4,262 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

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
4,262 reviews
Southwest
8.0
Very good
4,262 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

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
7.9
Good
8,075 reviews
Southwest
8.0
Very good
4,262 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

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
9,176 reviews
Southwest
8.0
Very good
4,262 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

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
11,160 reviews
Southwest
8.0
Very good
4,262 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Boarding

8.1

Food

7.0

Crew

8.6

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.

  • How long is the flight from Columbus Airport to Ontario?

    There are many flights that can get you from Columbus Airport to Ontario in 7h 46m. Fly via Frontier, United Airlines, or Delta to get the fastest option. There are 1944 mi between Columbus Airport and Ontario. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Flying on Delta is currently your cheapest option to Ontario, with prices starting at $208. Additional round-trip tickets that might be worth considering are offered by United Airlines and American Airlines, with the lowest prices starting at $228 and $296, respectively. These flights start at 46% 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 Delta, with whom users have recently found tickets for as low as $143. However, be on the lookout for offers from American Airlines and Southwest, 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, May is the cheapest month in which you can book a flight from Columbus Airport to Ontario (average of $112). Flying from Columbus Airport to Ontario in March is currently the most expensive (average of $249). 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 January 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$208Average$347FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$228Average$488FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$296Average$417FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$346Average$437FlexibilityNo cancel feeOn-time63%

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