$141+ 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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
CMH — ONT
Jun 20 — Jun 271
Round-trip
1 adult, Economy
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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
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Cheapest flights from Columbus to OntarioExplore 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 May 21, 2026.
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 May 21, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/18. 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 8/174:47 pm
CMH
- ONT
1 stop20h 18m
Frontier
Mon 8/243:34 pm
ONT
- CMH
2 stops22h 38m
Frontier
Deal found 5/18![Frontier logo]()
$289
This Frontier deal was found by Cheapflights users on 5/19. 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 8/284:47 pm
CMH
- ONT
1 stop10h 02m
Frontier
Wed 9/26:00 am
ONT
- CMH
1 stop7h 02m
Frontier
Deal found 5/19![Frontier logo]()
$298
This Frontier deal was found by Cheapflights users on 5/18. 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.
Wed 9/234:57 pm
CMH
- ONT
1 stop9h 58m
Frontier
Wed 10/146:00 am
ONT
- CMH
1 stop6h 32m
Frontier
Deal found 5/18![Frontier logo]()
$310
This Booking.com deal was found by Cheapflights users on 5/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/314:47 pm
CMH
- ONT
1 stop20h 17m
Frontier
Wed 8/56:00 am
ONT
- CMH
1 stop7h 02m
Frontier
Deal found 5/21![Frontier logo]()
$311
This Orbitz deal was found by Cheapflights users on 5/21. 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.
Wed 9/164:57 pm
CMH
- ONT
1 stop9h 58m
Frontier
Wed 9/236:00 am
ONT
- CMH
1 stop6h 57m
Frontier
Deal found 5/21![Frontier logo]()
$313
This Frontier deal was found by Cheapflights users on 5/20. 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.
Wed 6/36:43 pm
CMH
- ONT
1 stop8h 06m
Frontier
Wed 6/106:00 am
ONT
- CMH
1 stop7h 02m
Frontier
Deal found 5/20![Frontier logo]()
$314
This Frontier deal was found by Cheapflights users on 5/20. 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 7/34:47 pm
CMH
- ONT
1 stop10h 02m
Frontier
Mon 7/66:00 am
ONT
- CMH
1 stop7h 02m
Frontier
Deal found 5/20![Frontier logo]()
$318
This Frontier deal was found by Cheapflights users on 5/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:43 pm
CMH
- ONT
1 stop8h 06m
Frontier
Mon 6/86:00 am
ONT
- CMH
1 stop8h 48m
Frontier
Deal found 5/17![Frontier logo]()
$330
This Expedia deal was found by Cheapflights users on 5/20. 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.
Fri 7/34:47 pm
CMH
- ONT
1 stop20h 18m
Frontier
Wed 7/86:00 am
ONT
- CMH
1 stop7h 02m
Frontier
Deal found 5/20![Frontier logo]()
$333
This Booking.com deal was found by Cheapflights users on 5/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/314:47 pm
CMH
- ONT
1 stop20h 18m
Frontier
Thu 9/310:50 am
ONT
- CMH
1 stop26h 12m
Frontier
Deal found 5/18![Frontier logo]()
$335
This Booking.com deal was found by Cheapflights users on 5/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/194:47 pm
CMH
- ONT
1 stop20h 18m
Frontier
Tue 6/2310:50 am
ONT
- CMH
1 stop26h 12m
Frontier
Deal found 5/20![Frontier logo]()
$346
Best flights from Columbus to OntarioDiscover carefully curated flight deals from Columbus to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 21, 2026.
Discover carefully curated flight deals from Columbus to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 21, 2026.
This Booking.com deal was found by Cheapflights users on 5/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/124:47 pm
CMH
- ONT
1 stop20h 18m
Frontier
Sun 6/1410:50 am
ONT
- CMH
1 stop26h 12m
Frontier
Deal found 5/16![Frontier logo]()
$393
This Southwest deal was found by Cheapflights users on 5/21. 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.
Wed 9/166:50 am
CMH
- ONT
2 stops8h 40m
Southwest
Wed 9/235:45 am
ONT
- CMH
1 stop6h 45m
Southwest
Deal found 5/21![Southwest logo]()
$402
This Alaska Airlines deal was found by Cheapflights users on 5/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:02 am
CMH
- ONT
1 stop10h 07m
Alaska Airlines
Wed 9/23:05 pm
ONT
- CMH
1 stop11h 03m
Alaska Airlines
Deal found 5/17![Alaska Airlines logo]()
$417
This Alaska Airlines deal was found by Cheapflights users on 5/18. 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.
Sat 8/227:02 am
CMH
- ONT
1 stop10h 07m
Alaska Airlines
Wed 8/263:05 pm
ONT
- CMH
1 stop11h 03m
Alaska Airlines
Deal found 5/18![Alaska Airlines logo]()
$430
This Southwest deal was found by Cheapflights users on 5/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:10 am
CMH
- ONT
2 stops9h 05m
Southwest
Sun 11/158:05 am
ONT
- CMH
1 stop6h 25m
Southwest
Deal found 5/17![Southwest logo]()
$452
This Frontier deal was found by Cheapflights users on 5/16. 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.
Wed 6/174:47 pm
CMH
- ONT
1 stop10h 02m
Frontier
Mon 6/226:00 am
ONT
- CMH
1 stop7h 02m
Frontier
Deal found 5/16![Frontier logo]()
$489
This Southwest deal was found by Cheapflights users on 5/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/76:10 pm
CMH
- ONT
2 stops7h 35m
Southwest
Wed 7/1510:10 am
ONT
- CMH
2 stops8h 50m
Southwest
Deal found 5/16![Southwest logo]()
$457
This Alaska Airlines deal was found by Cheapflights users on 5/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/275:48 pm
CMH
- ONT
1 stop8h 36m
Alaska Airlines
Fri 10/23:12 pm
ONT
- CMH
1 stop10h 56m
Alaska Airlines
Deal found 5/17![Alaska Airlines logo]()
$477
This Southwest deal was found by Cheapflights users on 5/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:30 am
CMH
- ONT
2 stops11h 20m
Southwest
Sun 8/307:00 am
ONT
- CMH
2 stops12h 45m
Southwest
Deal found 5/17![Southwest logo]()
$476
This Southwest deal was found by Cheapflights users on 5/20. 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.
Mon 6/297:00 pm
CMH
- ONT
1 stop6h 35m
Southwest
Sat 7/410:00 am
ONT
- CMH
1 stop6h 50m
Southwest
Deal found 5/20![Southwest logo]()
$477
This Southwest deal was found by Cheapflights users on 5/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/26:35 am
CMH
- ONT
2 stops9h 10m
Southwest
Sun 7/54:35 pm
ONT
- CMH
1 stop6h 15m
Southwest
Deal found 5/17![Southwest logo]()
$482
Last-minute flights from Columbus to OntarioDiscover last-minute flight deals from Columbus to Ontario. Data last updated May 21, 2026 and is based on user searches.
Discover last-minute flight deals from Columbus to Ontario. Data last updated May 21, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 5/16. 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 6/16:43 pm
CMH
- ONT
1 stop8h 06m
Frontier
Fri 6/56:00 am
ONT
- CMH
1 stop8h 48m
Frontier
Deal found 5/16![Frontier logo]()
$350
This Super.com deal was found by Cheapflights users on 5/16. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:43 pm
CMH
- ONT
1 stop8h 06m
Frontier
Thu 6/410:50 am
ONT
- CMH
1 stop27h 58m
Frontier
Deal found 5/16![Frontier logo]()
$355
This Frontier deal was found by Cheapflights users on 5/20. 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.
Wed 6/36:43 pm
CMH
- ONT
1 stop8h 06m
Frontier
Wed 6/106:00 am
ONT
- CMH
1 stop7h 02m
Frontier
Deal found 5/20![Frontier logo]()
$314
This Frontier deal was found by Cheapflights users on 5/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:43 pm
CMH
- ONT
1 stop8h 06m
Frontier
Mon 6/86:00 am
ONT
- CMH
1 stop8h 48m
Frontier
Deal found 5/17![Frontier logo]()
$330
This CheapOair deal was found by Cheapflights users on 5/20. 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.
Wed 6/36:43 pm
CMH
- ONT
1 stop8h 06m
Frontier
Thu 6/410:50 am
ONT
- CMH
1 stop27h 58m
Frontier
Deal found 5/20![Frontier logo]()
$364
This Frontier deal was found by Cheapflights users on 5/19. 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 6/56:43 pm
CMH
- ONT
1 stop8h 06m
Frontier
Wed 6/106:00 am
ONT
- CMH
1 stop7h 02m
Frontier
Deal found 5/19![Frontier logo]()
$353
This Frontier deal was found by Cheapflights users on 5/19. 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 6/56:43 pm
CMH
- ONT
1 stop8h 06m
Frontier
Mon 6/86:00 am
ONT
- CMH
1 stop8h 48m
Frontier
Deal found 5/19![Frontier logo]()
$358
This Frontier deal was found by Cheapflights users on 5/19. 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.
Wed 6/104:47 pm
CMH
- ONT
1 stop10h 02m
Frontier
Wed 6/176:00 am
ONT
- CMH
1 stop7h 02m
Frontier
Deal found 5/19![Frontier logo]()
$370
This Booking.com deal was found by Cheapflights users on 5/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/174:47 pm
CMH
- ONT
1 stop20h 18m
Frontier
Wed 6/246:00 am
ONT
- CMH
1 stop7h 02m
Frontier
Deal found 5/20![Frontier logo]()
$361
This Booking.com deal was found by Cheapflights users on 5/20. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/194:47 pm
CMH
- ONT
1 stop20h 18m
Frontier
Tue 6/2310:50 am
ONT
- CMH
1 stop26h 12m
Frontier
Deal found 5/20![Frontier logo]()
$346
This Frontier deal was found by Cheapflights users on 5/21. 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 6/194:47 pm
CMH
- ONT
1 stop10h 02m
Frontier
Wed 6/246:00 am
ONT
- CMH
1 stop7h 02m
Frontier
Deal found 5/21![Frontier logo]()
$368
One-way flights from Columbus to OntarioSearch for one-way flight options from Columbus to Ontario. Find affordable one-way fares based on user searches. Data last updated May 21, 2026.
Search for one-way flight options from Columbus to Ontario. Find affordable one-way fares based on user searches. Data last updated May 21, 2026.
This Priceline deal was found by Cheapflights users on 5/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/234:57 pm
CMH
- ONT
1 stop9h 58m
Frontier
Deal found 5/16![Frontier logo]()
$141
This Frontier deal was found by Cheapflights users on 5/19. 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.
Wed 6/104:47 pm
CMH
- ONT
1 stop10h 02m
Frontier
Deal found 5/19![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 5/19. 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 9/237:26 pm
CMH
- ONT
2 stops31h 29m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$152
This Frontier deal was found by Cheapflights users on 5/18. 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 7/134:47 pm
CMH
- ONT
1 stop10h 03m
Frontier
Deal found 5/18![Frontier logo]()
$160
This Travelocity deal was found by Cheapflights users on 5/18. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/124:47 pm
CMH
- ONT
1 stop20h 18m
Frontier
Deal found 5/18![Frontier logo]()
$161
This Frontier deal was found by Cheapflights users on 5/20. 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 7/314:47 pm
CMH
- ONT
1 stop10h 03m
Frontier
Deal found 5/20![Frontier logo]()
$165
This Super.com deal was found by Cheapflights users on 5/18. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:43 pm
CMH
- ONT
1 stop8h 06m
Frontier
Deal found 5/18![Frontier logo]()
$171
This Super.com deal was found by Cheapflights users on 5/20. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:43 pm
CMH
- ONT
1 stop8h 06m
Frontier
Deal found 5/20![Frontier logo]()
$174
This Super.com deal was found by Cheapflights users on 5/20. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/56:43 pm
CMH
- ONT
1 stop8h 06m
Frontier
Deal found 5/20![Frontier logo]()
$178
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 May 21, 2026.
Round-trip from | $289 (Kiwi.com) |
|---|---|
One-way from | $141 (Priceline) |
Popular in | February |
Cheapest in | September |
Average price | $456 |
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 May 21, 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
Cheapest round-trip
ColumbusOntario
CMH - ONT
CMHONT
Columbus
Fri 6/12
4:47 pm-10:05 am
1 stop20h 18m
Ontario
Sun 6/14
10:50 am-4:02 pm
1 stop26h 12m
$393
ColumbusOntario
CMH - ONT
CMHONT
Columbus
Wed 9/16
6:50 am-12:30 pm
2 stops8h 40m
Ontario
Wed 9/23
5:45 am-3:30 pm
1 stop6h 45m
$402
ColumbusOntario
CMH - ONT
CMHONT
Columbus
Tue 9/1
7:02 am-2:09 pm
1 stop10h 07m
Ontario
Wed 9/2
3:05 pm-5:08 am
1 stop11h 03m
$417
ColumbusOntario
CMH - ONT
CMHONT
Columbus
Sat 8/22
7:02 am-2:09 pm
1 stop10h 07m
Ontario
Wed 8/26
3:05 pm-5:08 am
1 stop11h 03m
$430
ColumbusOntario
CMH - ONT
CMHONT
Columbus
Wed 11/11
6:10 am-12:15 pm
2 stops9h 05m
Ontario
Sun 11/15
8:05 am-5:30 pm
1 stop6h 25m
$452
ColumbusOntario
CMH - ONT
CMHONT
Columbus
Tue 7/7
6:10 pm-10:45 pm
2 stops7h 35m
Ontario
Wed 7/15
10:10 am-10:00 pm
2 stops8h 50m
$457
ColumbusOntario
CMH - ONT
CMHONT
Columbus
Thu 8/27
9:30 am-5:50 pm
2 stops11h 20m
Ontario
Sun 8/30
7:00 am-10:45 pm
2 stops12h 45m
$476
ColumbusOntario
CMH - ONT
CMHONT
Columbus
Sun 9/27
5:48 pm-11:24 pm
1 stop8h 36m
Ontario
Fri 10/2
3:12 pm-5:08 am
1 stop10h 56m
$477
Quickest round-trip
ColumbusOntario
CMH - ONT
CMHONT
Columbus
Mon 6/29
7:00 pm-10:35 pm
1 stop6h 35m
Ontario
Sat 7/4
10:00 am-7:50 pm
1 stop6h 50m
$477
ColumbusOntario
CMH - ONT
CMHONT
Columbus
Thu 7/2
6:35 am-12:45 pm
2 stops9h 10m
Ontario
Sun 7/5
4:35 pm-1:50 am
1 stop6h 15m
$482
Showing 1-10 of 21 resultsSorted by cheapest first
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.
C01-ONT
CMH-ONT
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
C01-ONT
CMH-ONT
What is the cheapest month to book a flight from Columbus to Ontario?
Currently, October is the cheapest month in which you can book a flight from Columbus to Ontario (average of $179). Flying from Columbus to Ontario in May is currently the most expensive (average of $436). 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.
How much does it cost to fly round-trip from Columbus to Ontario?
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 May 21, 2026.
See what other customers who have flown with Southwest,Delta, andUnited 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
Boarding
8.1
Overall
7.9
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Boarding
8.1
Overall
7.9
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Boarding
8.1
Overall
7.9
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Boarding
8.1
Overall
7.9
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Boarding
8.1
Overall
7.9
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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.
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Alternative routes for Columbus to Ontario
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Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Columbus to Ontario by cabin class
Find flights from Columbus to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on May 21, 2026.
Columbus and Ontario flights
Browse other Columbus and Ontario flight options. Last updated on May 21, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 May 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$179 | Average$354 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$228 | Average$443 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$296 | Average$476 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$342 | Average$476 | FlexibilityNo cancel fee | On-time63% |