$135+ Cheap flights from Columbus (CMH) to Ontario (ONT)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
CMH — ONT
Oct 14 — Oct 211
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
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
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Last-minute
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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 September 14, 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 September 14, 2026.
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:20 am -
1 stop7h 35m
Tue 11/171:55 pm -
1 stop5h 40m
Deal found 9/14![Southwest logo]()
$268
This Frontier deal was found by Cheapflights users on 9/10. 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 10/304:21 pm -
1 stop10h 30m
Mon 11/26:25 am -
1 stop6h 01m
Deal found 9/10![Frontier logo]()
$285
This Frontier deal was found by Cheapflights users on 9/10. 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 10/164:27 pm -
1 stop10h 23m
Fri 10/236:15 am -
1 stop6h 17m
Deal found 9/10![Frontier logo]()
$292
This CheapOair deal was found by Cheapflights users on 9/9. 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.
Mon 11/24:21 pm -
1 stop21h 14m
Tue 11/106:25 am -
2 stops9h 27m
Deal found 9/9![Frontier logo]()
$299
This Trip.com deal was found by Cheapflights users on 9/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/214:27 pm -
1 stop10h 23m
Fri 10/236:15 am -
1 stop6h 17m
Deal found 9/11![Frontier logo]()
$310
This Frontier deal was found by Cheapflights users on 9/10. 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 10/164:27 pm -
1 stop10h 23m
Mon 10/196:15 am -
1 stop6h 17m
Deal found 9/10![Frontier logo]()
$315
This CheapOair deal was found by Cheapflights users on 9/9. 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.
Fri 11/134:21 pm -
1 stop21h 21m
Wed 11/1811:52 am -
2 stops27h 41m
Deal found 9/9![Frontier logo]()
$320
This CheapOair deal was found by Cheapflights users on 9/10. 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.
Tue 10/137:44 pm -
2 stops17h 45m
Wed 10/145:33 pm -
2 stops22h 15m
Deal found 9/10![Frontier logo]()
$326
This Frontier deal was found by Cheapflights users on 9/11. 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 10/144:27 pm -
1 stop10h 23m
Mon 10/196:15 am -
1 stop6h 17m
Deal found 9/11![Frontier logo]()
$330
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 September 14, 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 September 14, 2026.
This Delta deal was found by Cheapflights users on 9/9. 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.
Sat 10/107:00 am -
1 stop8h 36m
Tue 10/137:07 am -
1 stop8h 02m
Deal found 9/9![Delta logo]()
$377
This Southwest deal was found by Cheapflights users on 9/13. 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 11/245:35 am -
1 stop7h 15m
Fri 11/275:35 am -
2 stops8h 10m
Deal found 9/13![Southwest logo]()
$455
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 10/297:00 am -
2 stops8h 30m
Tue 11/35:00 am -
2 stops8h 49m
Deal found 9/10![United Airlines logo]()
$487
This Delta deal was found by Cheapflights users on 9/10. 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.
Thu 10/296:00 am -
1 stop8h 06m
Tue 11/312:16 pm -
1 stop8h 14m
Deal found 9/10![Delta logo]()
$377
This Delta deal was found by Cheapflights users on 9/9. 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.
Sat 11/77:00 am -
1 stop8h 36m
Mon 11/91:15 pm -
1 stop6h 53m
Deal found 9/9![Delta logo]()
$377
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 10/304:58 pm -
1 stop7h 42m
Tue 11/35:00 am -
2 stops8h 49m
Deal found 9/10![United Airlines logo]()
$499
This Delta deal was found by Cheapflights users on 9/10. 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.
Fri 10/306:00 am -
1 stop8h 06m
Tue 11/312:16 pm -
1 stop8h 14m
Deal found 9/10![Delta logo]()
$448
This Delta deal was found by Cheapflights users on 9/13. 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.
Thu 11/261:19 pm -
1 stop9h 30m
Wed 12/212:20 pm -
1 stop7h 10m
Deal found 9/13![Delta logo]()
$450
This Delta deal was found by Cheapflights users on 9/13. 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 11/256:00 am -
1 stop8h 08m
Thu 11/2612:18 pm -
1 stop8h 23m
Deal found 9/13![Delta logo]()
$450
This Delta deal was found by Cheapflights users on 9/13. 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.
Tue 11/247:00 am -
1 stop8h 20m
Wed 12/21:11 pm -
1 stop6h 49m
Deal found 9/13![Delta logo]()
$456
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/95:39 pm -
1 stop7h 18m
Wed 11/181:15 pm -
1 stop6h 53m
Deal found 9/14![Delta logo]()
$460
This Delta deal was found by Cheapflights users on 9/13. 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.
Thu 11/261:19 pm -
1 stop9h 30m
Tue 12/11:11 pm -
1 stop6h 49m
Deal found 9/13![Delta logo]()
$493
Last-minute flights from Columbus to OntarioDiscover last-minute flight deals from Columbus to Ontario. Data last updated September 14, 2026 and is based on user searches.
Discover last-minute flight deals from Columbus to Ontario. Data last updated September 14, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 9/12. 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 9/234:30 pm -
1 stop10h 17m
Wed 9/306:15 am -
1 stop6h 20m
Deal found 9/12![Frontier logo]()
$347
This Expedia deal was found by Cheapflights users on 9/13. 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.
Mon 10/54:30 pm -
1 stop21h 00m
Wed 10/146:15 am -
1 stop6h 17m
Deal found 9/13![Frontier logo]()
$332
This CheapOair deal was found by Cheapflights users on 9/9. 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.
Mon 10/54:30 pm -
1 stop21h 00m
Sat 10/106:15 am -
2 stops33h 33m
Deal found 9/9![Frontier logo]()
$334
This CheapOair deal was found by Cheapflights users on 9/10. 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.
Tue 10/137:44 pm -
2 stops17h 45m
Wed 10/145:33 pm -
2 stops22h 15m
Deal found 9/10![Frontier logo]()
$326
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:00 am -
1 stop7h 06m
Sat 10/1712:16 pm -
1 stop8h 24m
Deal found 9/14![Delta logo]()
$277
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:00 am -
1 stop8h 06m
Mon 10/1911:08 pm -
1 stop8h 02m
Deal found 9/14![Delta logo]()
$316
This Frontier deal was found by Cheapflights users on 9/11. 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 10/144:27 pm -
1 stop10h 23m
Mon 10/196:15 am -
1 stop6h 17m
Deal found 9/11![Frontier logo]()
$330
This Frontier deal was found by Cheapflights users on 9/10. 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 10/164:27 pm -
1 stop10h 23m
Fri 10/236:15 am -
1 stop6h 17m
Deal found 9/10![Frontier logo]()
$292
This Frontier deal was found by Cheapflights users on 9/10. 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 10/164:27 pm -
1 stop10h 23m
Mon 10/196:15 am -
1 stop6h 17m
Deal found 9/10![Frontier logo]()
$315
This Trip.com deal was found by Cheapflights users on 9/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/214:27 pm -
1 stop10h 23m
Fri 10/236:15 am -
1 stop6h 17m
Deal found 9/11![Frontier logo]()
$310
This Frontier deal was found by Cheapflights users on 9/10. 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 10/304:21 pm -
1 stop10h 30m
Mon 11/26:25 am -
1 stop6h 01m
Deal found 9/10![Frontier logo]()
$285
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 September 14, 2026.
Search for one-way flight options from Columbus to Ontario. Find affordable one-way fares based on user searches. Data last updated September 14, 2026.
This Super.com deal was found by Cheapflights users on 9/10. 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 10/74:30 pm -
1 stop10h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 10/67:50 pm -
2 stops30h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Frontier logo]()
$141
This Super.com deal was found by Cheapflights users on 9/11. 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 11/94:21 pm -
1 stop10h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 11/157:44 pm -
2 stops40h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$162
This Frontier deal was found by Cheapflights users on 9/13. 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 10/214:27 pm -
1 stop10h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Frontier logo]()
$163
This Frontier deal was found by Cheapflights users on 9/11. 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 10/304:21 pm -
1 stop10h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$171
This CheapOair deal was found by Cheapflights users on 9/12. 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 9/304:30 pm -
1 stop10h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Frontier logo]()
$173
This Super.com deal was found by Cheapflights users on 9/13. 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 10/124:27 pm -
1 stop10h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Frontier logo]()
$177
This CheapOair deal was found by Cheapflights users on 9/10. 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.
Thu 10/157:44 pm -
2 stops41h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$183
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 10/15:48 pm -
1 stop8h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Alaska Airlines logo]()
$189
Find 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 September 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $268 (Southwest) |
One-way from | $135 (Super.com) |
Popular in | February |
Cheapest in | August |
Average price | $509 |
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 7,457,451 searches. Data last updated September 14, 2026.
Use the filters below to find and compare flights from Columbus Airport to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ColumbusOntario
CMH Columbus - ONT Ontario
CMHONT
Columbus
Thu 10/1
5:48 pm-11:24 pm
1 stop8h 36m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$189
ColumbusOntario
CMH Columbus - ONT Ontario
CMHONT
Columbus
Mon 10/5
5:07 pm-10:24 pm
1 stop8h 17m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$189
ColumbusOntario
CMH Columbus - ONT Ontario
CMHONT
Columbus
Wed 10/28
8:34 am-6:00 pm
1 stop12h 26m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$194
ColumbusOntario
CMH Columbus - ONT Ontario
CMHONT
Columbus
Tue 10/20
7:00 am-11:06 am
1 stop7h 06m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$207
ColumbusOntario
CMH Columbus - ONT Ontario
CMHONT
Columbus
Sun 11/15
6:50 pm-10:40 pm
1 stop6h 50m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$244
ColumbusOntario
CMH Columbus - ONT Ontario
CMHONT
Columbus
Wed 10/7
5:24 am-1:16 pm
2 stops10h 52m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$244
ColumbusOntario
CMH Columbus - ONT Ontario
CMHONT
Columbus
Wed 12/23
8:02 am-3:05 pm
1 stop10h 03m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$271
Quickest round-trip
ColumbusOntario
CMH Columbus - ONT Ontario
CMHONT
Columbus
Sun 10/18
8:45 pm-11:55 pm
1 stop6h 10m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$274
ColumbusOntario
CMH Columbus - ONT Ontario
CMHONT
Columbus
Fri 10/30
7:00 am-12:30 pm
2 stops8h 30m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$280
ColumbusOntario
CMH Columbus - ONT Ontario
CMHONT
Columbus
Thu 10/22
7:21 am-12:18 pm
1 stop7h 57m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$285
Showing 1-10 of 23 resultsSorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars |
- 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 FlightHub the most. FlightHub 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.
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 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 $354). Flying from Columbus Airport to Ontario in February is currently the most expensive (average of $694). 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 Airport to Ontario?
Airfare is below average for this route at the moment.
Columbus Airport to Ontario flights typically cost between $399 and $695 in November.The cheapest round-trip price found within the last 5 days was $268 on Southwest (Nov 10-Nov 17).
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 14, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited 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.
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
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Top 5 airlines flying from Columbus to Ontario
Discover the top 5 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 7,457,451 searches. Data last updated September 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$129 | Average$318 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$238 | Average$366 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$306 | Average$509 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$342 | Average$476 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$372 | Average$506 | FlexibilityNo cancel fee | On-time71% |