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$138+ 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
CMH — ONT
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$300
(Frontier)

One-way from

$138
(Frontier)

Popular in

December

Cheapest in

February

Average price

$451
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 ($58 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 3, 2025.

This Frontier deal was found by Cheapflights users on 7/2. 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 7/245:25 pmCMH - ONT
1 stop9h 25mFrontier
Wed 7/3012:59 amONT - CMH
1 stop12h 31mFrontier
Deal found 7/2$300
This American Airlines deal was found by Cheapflights users on 6/30. 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 8/287:03 amCMH - ONT
1 stop7h 50mAmerican Airlines
Sun 8/316:10 amONT - CMH
1 stop6h 24mAmerican Airlines
Deal found 6/30$329
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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.
Mon 8/46:28 pmCMH - ONT
1 stop8h 47mAlaska Airlines
Thu 8/144:00 pmONT - CMH
1 stop10h 13mAlaska Airlines
Deal found 7/3$342
This Delta deal was found by Cheapflights users on 7/3. 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.
Wed 7/305:08 pmCMH - ONT
1 stop8h 19mDelta
Mon 8/1810:00 pmONT - CMH
1 stop8h 04mDelta
Deal found 7/3$345
This Southwest deal was found by Cheapflights users on 7/3. 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.
Sat 8/27:40 pmCMH - ONT
1 stop6h 20mSouthwest
Sat 8/1611:15 amONT - CMH
1 stop8h 30mSouthwest
Deal found 7/3$347
This United Airlines deal was found by Cheapflights users on 7/2. 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.
Sat 10/42:17 pmCMH - ONT
2 stops11h 25mUnited Airlines
Tue 10/71:15 pmONT - CMH
1 stop6h 16mUnited Airlines
Deal found 7/2$356
This Hawaiian Airlines deal was found by Cheapflights users on 7/1. 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.
Fri 8/156:28 pmCMH - ONT
1 stop8h 47mHawaiian Airlines
Mon 8/184:00 pmONT - CMH
1 stop10h 13mHawaiian Airlines
Deal found 7/1$365
This Orbitz deal was found by Cheapflights users on 7/3. 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 7/175:25 pmCMH - ONT
1 stop9h 25mMultiple Airlines
Thu 7/244:00 pmONT - CMH
1 stop10h 13mMultiple Airlines
Deal found 7/3$386

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 July 3, 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

Sun 8/31

8:30 pm-11:50 pm

1 stop6h 20m

Ontario

Sun 9/28

8:59 pm-7:39 pm

1 stop19h 40m

$288

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Thu 8/28

7:03 am-11:53 am

1 stop7h 50m

Ontario

Sun 8/31

6:10 am-3:34 pm

1 stop6h 24m

$329

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Mon 8/4

6:28 pm-12:15 am

1 stop8h 47m

Ontario

Thu 8/14

4:00 pm-5:13 am

1 stop10h 13m

$342

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Wed 7/30

5:08 pm-10:27 pm

1 stop8h 19m

Ontario

Mon 8/18

10:00 pm-9:04 am

1 stop8h 04m

$345

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Sat 8/2

7:40 pm-11:00 pm

1 stop6h 20m

Ontario

Sat 8/16

11:15 am-10:45 pm

1 stop8h 30m

$347

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Fri 8/15

6:28 pm-12:15 am

1 stop8h 47m

Ontario

Mon 8/18

4:00 pm-5:13 am

1 stop10h 13m

$365

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Thu 7/17

5:25 pm-11:50 pm

1 stop9h 25m

Ontario

Thu 7/24

4:00 pm-5:13 am

1 stop10h 13m

$386

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Sun 8/31

8:30 pm-11:50 pm

1 stop6h 20m

$138

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Tue 9/30

6:54 am-2:12 pm

1 stop10h 18m

$171

ColumbusOntario

CMH - ONT

CMHONT

Columbus

Thu 9/4

7:01 am-1:50 pm

1 stop9h 49m

$172

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Showing 1-10 of 15 results
1
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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 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 July 3, 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.

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 July 3, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,270 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,970 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,545 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,845 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 $300. Additional round-trip tickets that might be worth considering are offered by American Airlines and Alaska Airlines, with the lowest prices starting at $329 and $342, respectively. These flights start at 29% 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 Frontier, with whom users have recently found tickets for as low as $138. However, be on the lookout for offers from Alaska Airlines 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 $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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$228Average$394FlexibilityNo cancel feeOn-time69%
DeltaCheapest$276Average$380FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$330Average$432FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$355Average$437FlexibilityNo cancel feeOn-time63%

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