Ontario

$85+ 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
CMH — ONT
abr 4 — abr 111
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

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 março 5, 2026.

This CheapOair deal was found by Cheapflights users on 3/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 5/47:58 pm
CMH
-
ONT
1 stop6h 57m
Frontier
qui 5/712:59 am
ONT
-
CMH
1 stop15h 24m
Frontier
Deal found 3/4$201
This Expedia deal was found by Cheapflights users on 3/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 4/247:53 pm
CMH
-
ONT
1 stop7h 02m
Frontier
sáb 4/2512:59 am
ONT
-
CMH
1 stop15h 35m
Frontier
Deal found 3/3$211
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 4/178:18 pm
CMH
-
ONT
2 stops39h 06m
Frontier
qui 4/2312:59 am
ONT
-
CMH
1 stop14h 59m
Frontier
Deal found 3/3$218
This CheapOair deal was found by Cheapflights users on 3/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 4/238:15 pm
CMH
-
ONT
1 stop14h 16m
Frontier
sáb 4/2512:59 am
ONT
-
CMH
1 stop15h 35m
Frontier
Deal found 3/1$222
This Kiwi.com deal was found by Cheapflights users on 3/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 4/146:05 am
CMH
-
ONT
2 stops17h 34m
Multiple Airlines
dom 4/1912:59 am
ONT
-
CMH
1 stop15h 27m
Multiple Airlines
Deal found 3/2$238
This Frontier deal was found by Cheapflights users on 3/4. 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.
sex 4/37:14 pm
CMH
-
ONT
1 stop7h 42m
Frontier
sex 4/106:20 am
ONT
-
CMH
1 stop8h 59m
Frontier
Deal found 3/4$240
This CheapOair deal was found by Cheapflights users on 3/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 4/168:18 pm
CMH
-
ONT
1 stop14h 13m
Frontier
dom 4/1912:59 am
ONT
-
CMH
1 stop15h 27m
Frontier
Deal found 3/4$243
This Frontier deal was found by Cheapflights users on 3/4. 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.
dom 3/297:33 pm
CMH
-
ONT
1 stop7h 26m
Frontier
sex 4/106:20 am
ONT
-
CMH
1 stop8h 59m
Frontier
Deal found 3/4$260
This CheapOair deal was found by Cheapflights users on 3/3. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 4/308:08 pm
CMH
-
ONT
1 stop6h 47m
Frontier
sáb 5/912:59 am
ONT
-
CMH
1 stop15h 24m
Frontier
Deal found 3/3$272
This Frontier deal was found by Cheapflights users on 3/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 4/107:14 pm
CMH
-
ONT
1 stop7h 42m
Frontier
seg 4/136:20 am
ONT
-
CMH
1 stop8h 59m
Frontier
Deal found 3/3$281
This Alaska Airlines deal was found by Cheapflights users on 3/1. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 4/217:30 pm
CMH
-
ONT
1 stop17h 15m
Alaska Airlines
ter 4/286:00 am
ONT
-
CMH
1 stop9h 21m
Alaska Airlines
Deal found 3/1$283
This Priceline deal was found by Cheapflights users on 3/1. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 3/157:33 pm
CMH
-
ONT
1 stop7h 26m
Frontier
qui 3/196:15 am
ONT
-
CMH
1 stop9h 23m
Frontier
Deal found 3/1$290

Find 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 março 5, 2026.

Round-trip from

$201
(CheapOair)

One-way from

$85
(Kiwi.com)

Popular in

February

Cheapest in

September

Average price

$380
From Columbus to Ontario
One-way flight from Columbus to Ontario
Highest demand for flights based on searches. 11% potential increase in price ($50 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($22 potential savings vs. average RT price).
Average for round-trip flights in March 2026

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 março 5, 2026.
Use the filters below to find and compare flights from Columbus to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ColumbusOntario

CMH - ONT

CMHONT

Columbus

ter 3/24

2:24 pm-10:57 pm

2 stops11h 33m

Ontario

ter 3/31

5:10 am-2:32 pm

1 stop6h 22m

$328

ColumbusOntario

CMH - ONT

CMHONT

Columbus

ter 5/5

3:00 pm-9:00 pm

1 stop9h 00m

Ontario

sáb 5/9

10:00 pm-9:05 am

1 stop8h 05m

$343

ColumbusOntario

CMH - ONT

CMHONT

Columbus

sex 5/29

5:49 pm-10:46 pm

1 stop7h 57m

Ontario

sáb 6/6

5:00 am-2:28 pm

1 stop6h 28m

$437

ColumbusOntario

CMH - ONT

CMHONT

Columbus

sáb 5/30

10:00 am-3:35 pm

1 stop8h 35m

Ontario

sáb 6/6

1:20 pm-1:25 am

2 stops9h 05m

$442

ColumbusOntario

CMH - ONT

CMHONT

Columbus

qua 4/15

4:57 pm-9:50 pm

1 stop7h 53m

Ontario

dom 4/19

1:34 pm-10:43 pm

1 stop6h 09m

$470

ColumbusOntario

CMH - ONT

CMHONT

Columbus

sex 5/1

7:17 pm-9:45 am

1 stop17h 28m

Ontario

qua 5/6

6:00 am-6:21 pm

1 stop9h 21m

$478

ColumbusOntario

CMH - ONT

CMHONT

Columbus

seg 3/30

4:10 pm-10:26 pm

1 stop9h 16m

Ontario

sex 4/3

5:10 am-2:32 pm

1 stop6h 22m

$545

ColumbusOntario

CMH - ONT

CMHONT

Columbus

seg 5/25

4:09 pm-10:46 pm

1 stop9h 37m

Ontario

sáb 5/30

6:00 am-6:24 pm

1 stop9h 24m

$547

ColumbusOntario

CMH - ONT

CMHONT

Columbus

qui 5/28

7:54 pm-11:58 pm

1 stop31h 04m

Ontario

ter 6/9

7:41 pm-5:41 am

1 stop31h 00m

$553

ColumbusOntario

CMH - ONT

CMHONT

Columbus

qua 5/27

7:54 pm-11:10 am

1 stop18h 16m

Ontario

seg 6/8

4:03 pm-5:40 am

1 stop10h 37m

$565

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/3

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

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, May is the cheapest month in which you can book a flight from Columbus to Ontario (average of $112). Flying from Columbus 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 março 5, 2026.
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.

Comfort

8.0

Entertainment

7.5

Overall

8.0

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.

Comfort

8.0

Entertainment

7.5

Overall

8.0

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.

Comfort

8.0

Entertainment

7.5

Overall

8.0

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.

Comfort

8.0

Entertainment

7.5

Overall

8.0

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.

Comfort

8.0

Entertainment

7.5

Overall

8.0

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?

    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 United Airlines, Delta, and Southwest fly from Columbus to Ontario in about 8h 35m. The time it takes to get you to your destination can typically vary by up to 2h 58m. The distance between Columbus and Ontario is about 1944 mi. This flight may include one or multiple stops.

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

    Our cheapest airline available from Columbus to Ontario is Delta. Our recent data shows that you can find tickets from as low as $208 on this airline. Additional options worth looking into are United Airlines and American Airlines, starting at $228 and $296 round-trip. These flights start at 49% lower than the current average price 3 months from now.

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

    One-way options have recently been found by users for as low as $143 on Delta. Other airlines that offer cheap prices include American Airlines from $149 and Southwest from $155 one-way.

  • 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, May is the cheapest month in which you can book a flight from Columbus to Ontario (average of $112). Flying from Columbus 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

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.

Alternative routes for Columbus to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

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 março 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$208Average$355FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$228Average$447FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$437FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$346Average$434FlexibilityNo 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.