$109+ 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 5/11. Fares are subject to change and may not be available on all flights or dates of travel.
CMH — ONT
May 25 — Jun 11
Round-trip
1 adult, Economy
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Find cheap flights from Columbus to Ontario with Cheapflights
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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 April 25, 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 April 25, 2026.
This Frontier deal was found by Cheapflights users on 4/20. 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.
Mon 6/86:43 pm
CMH
- ONT
1 stop8h 06m
Frontier
Fri 6/126:00 am
ONT
- CMH
1 stop7h 02m
Frontier
Deal found 4/20![Frontier logo]()
$230
This Expedia deal was found by Cheapflights users on 4/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/56:43 pm
CMH
- ONT
1 stop18h 22m
Frontier
Mon 6/86:00 am
ONT
- CMH
1 stop8h 48m
Frontier
Deal found 4/21![Frontier logo]()
$250
This Frontier deal was found by Cheapflights users on 4/25. 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 5/86:43 pm
CMH
- ONT
1 stop8h 06m
Frontier
Fri 5/156:00 am
ONT
- CMH
1 stop8h 48m
Frontier
Deal found 4/25![Frontier logo]()
$251
This Frontier deal was found by Cheapflights users on 4/23. 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 5/86:43 pm
CMH
- ONT
1 stop8h 06m
Frontier
Mon 5/116:00 am
ONT
- CMH
1 stop8h 48m
Frontier
Deal found 4/23![Frontier logo]()
$252
This CheapOair deal was found by Cheapflights users on 4/22. 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 4/308:08 pm
CMH
- ONT
1 stop14h 23m
Frontier
Sun 5/312:59 am
ONT
- CMH
1 stop15h 04m
Frontier
Deal found 4/22![Frontier logo]()
$261
This Trip.com deal was found by Cheapflights users on 4/23. 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.
Thu 4/308:08 pm
CMH
- ONT
1 stop14h 23m
Frontier
Sat 5/212:59 am
ONT
- CMH
1 stop15h 24m
Frontier
Deal found 4/23![Frontier logo]()
$268
This Expedia deal was found by Cheapflights users on 4/23. 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 6/124:47 pm
CMH
- ONT
1 stop20h 18m
Frontier
Wed 6/176:00 am
ONT
- CMH
1 stop7h 02m
Frontier
Deal found 4/23![Frontier logo]()
$270
This CheapOair deal was found by Cheapflights users on 4/22. 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 4/238:15 pm
CMH
- ONT
1 stop14h 16m
Frontier
Sat 4/2512:59 am
ONT
- CMH
1 stop15h 35m
Frontier
Deal found 4/22![Frontier logo]()
$281
This Frontier deal was found by Cheapflights users on 4/21. 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 6/56:43 pm
CMH
- ONT
1 stop8h 06m
Frontier
Wed 6/106:00 am
ONT
- CMH
1 stop7h 02m
Frontier
Deal found 4/21![Frontier logo]()
$290
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 April 25, 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 April 25, 2026.
This Delta deal was found by Cheapflights users on 4/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/267:30 am
CMH
- ONT
1 stop7h 49m
Delta
Tue 6/212:07 pm
ONT
- CMH
1 stop9h 18m
Delta
Deal found 4/20![Delta logo]()
$369
This Southwest deal was found by Cheapflights users on 4/22. 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 6/236:10 pm
CMH
- ONT
2 stops7h 50m
Southwest
Sun 6/284:50 pm
ONT
- CMH
1 stop6h 00m
Southwest
Deal found 4/22![Southwest logo]()
$482
This Alaska Airlines deal was found by Cheapflights users on 4/24. 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 5/107:17 pm
CMH
- ONT
1 stop17h 28m
Alaska Airlines
Thu 5/287:41 pm
ONT
- CMH
1 stop20h 08m
Alaska Airlines
Deal found 4/24![Alaska Airlines logo]()
$509
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Wed 7/83:30 pm
CMH
- ONT
1 stop8h 12m
United Airlines
Sun 7/126:30 am
ONT
- CMH
1 stop7h 23m
United Airlines
Deal found 4/23![United Airlines logo]()
$577
This Delta deal was found by Cheapflights users on 4/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/25:58 pm
CMH
- ONT
2 stops8h 36m
Delta
Thu 6/115:24 pm
ONT
- CMH
2 stops12h 43m
Delta
Deal found 4/20![Delta logo]()
$401
This Delta deal was found by Cheapflights users on 4/25. 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 5/274:49 pm
CMH
- ONT
2 stops9h 45m
Delta
Mon 6/14:57 pm
ONT
- CMH
2 stops13h 08m
Delta
Deal found 4/25![Delta logo]()
$422
This Southwest deal was found by Cheapflights users on 4/20. 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.
Sun 6/288:05 pm
CMH
- ONT
1 stop7h 20m
Southwest
Sun 7/511:55 pm
ONT
- CMH
1 stop7h 10m
Southwest
Deal found 4/20![Southwest logo]()
$494
This Delta deal was found by Cheapflights users on 4/25. 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 5/2612:55 pm
CMH
- ONT
1 stop8h 41m
Delta
Sun 5/3110:00 pm
ONT
- CMH
2 stops15h 20m
Delta
Deal found 4/25![Delta logo]()
$439
This United Airlines deal was found by Cheapflights users on 4/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/205:55 pm
CMH
- ONT
1 stop7h 56m
United Airlines
Thu 7/236:30 am
ONT
- CMH
1 stop7h 23m
United Airlines
Deal found 4/21![United Airlines logo]()
$577
This Delta deal was found by Cheapflights users on 4/24. 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.
Sun 7/56:00 am
CMH
- ONT
1 stop7h 40m
Delta
Thu 7/910:00 pm
ONT
- CMH
1 stop8h 02m
Delta
Deal found 4/24![Delta logo]()
$477
This Delta deal was found by Cheapflights users on 4/24. 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.
Sun 7/56:00 am
CMH
- ONT
1 stop7h 40m
Delta
Wed 7/81:00 pm
ONT
- CMH
1 stop6h 52m
Delta
Deal found 4/24![Delta logo]()
$477
Last-minute flights from Columbus to OntarioDiscover last-minute flight deals from Columbus to Ontario. Data last updated April 25, 2026 and is based on user searches.
Discover last-minute flight deals from Columbus to Ontario. Data last updated April 25, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 4/22. 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 4/238:15 pm
CMH
- ONT
1 stop14h 16m
Frontier
Sat 4/2512:59 am
ONT
- CMH
1 stop15h 35m
Frontier
Deal found 4/22![Frontier logo]()
$281
This CheapOair deal was found by Cheapflights users on 4/22. 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 4/308:08 pm
CMH
- ONT
1 stop14h 23m
Frontier
Sun 5/312:59 am
ONT
- CMH
1 stop15h 04m
Frontier
Deal found 4/22![Frontier logo]()
$261
This Trip.com deal was found by Cheapflights users on 4/23. 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.
Thu 4/308:08 pm
CMH
- ONT
1 stop14h 23m
Frontier
Sat 5/212:59 am
ONT
- CMH
1 stop15h 24m
Frontier
Deal found 4/23![Frontier logo]()
$268
This CheapOair deal was found by Cheapflights users on 4/24. 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 5/18:08 pm
CMH
- ONT
1 stop6h 47m
Frontier
Thu 5/2810:50 am
ONT
- CMH
1 stop27h 58m
Frontier
Deal found 4/24![Frontier logo]()
$317
This Frontier deal was found by Cheapflights users on 4/21. 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.
Mon 5/47:58 pm
CMH
- ONT
1 stop6h 57m
Frontier
Fri 5/86:00 am
ONT
- CMH
1 stop8h 48m
Frontier
Deal found 4/21![Frontier logo]()
$327
This Frontier deal was found by Cheapflights users on 4/25. 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 5/86:43 pm
CMH
- ONT
1 stop8h 06m
Frontier
Fri 5/156:00 am
ONT
- CMH
1 stop8h 48m
Frontier
Deal found 4/25![Frontier logo]()
$251
This Frontier deal was found by Cheapflights users on 4/23. 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 5/86:43 pm
CMH
- ONT
1 stop8h 06m
Frontier
Mon 5/116:00 am
ONT
- CMH
1 stop8h 48m
Frontier
Deal found 4/23![Frontier logo]()
$252
This American Airlines deal was found by Cheapflights users on 4/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:00 am
CMH
- ONT
1 stop7h 34m
American Airlines
Wed 5/2712:40 pm
ONT
- CMH
1 stop8h 18m
American Airlines
Deal found 4/21![American Airlines logo]()
$323
This Frontier deal was found by Cheapflights users on 4/25. 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 5/296:43 pm
CMH
- ONT
1 stop8h 06m
Frontier
Mon 6/16:00 am
ONT
- CMH
1 stop8h 48m
Frontier
Deal found 4/25![Frontier logo]()
$270
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 April 25, 2026.
Search for one-way flight options from Columbus to Ontario. Find affordable one-way fares based on user searches. Data last updated April 25, 2026.
This Super.com deal was found by Cheapflights users on 4/21. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/116:43 pm
CMH
- ONT
1 stop18h 22m
Frontier
Deal found 4/21![Frontier logo]()
$109
This Expedia deal was found by Cheapflights users on 4/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:43 pm
CMH
- ONT
1 stop18h 22m
Frontier
Deal found 4/21![Frontier logo]()
$113
This Super.com deal was found by Cheapflights users on 4/23. 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 5/47:58 pm
CMH
- ONT
1 stop6h 57m
Frontier
Deal found 4/23![Frontier logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/177:20 pm
CMH
- ONT
2 stops41h 45m
Frontier
Deal found 4/21![Frontier logo]()
$138
This Frontier deal was found by Cheapflights users on 4/20. 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.
Mon 5/186:43 pm
CMH
- ONT
1 stop8h 06m
Frontier
Deal found 4/20![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 4/25. 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.
Thu 6/48:48 pm
CMH
- ONT
2 stops40h 17m
Frontier
Deal found 4/25![Frontier logo]()
$147
This Expedia deal was found by Cheapflights users on 4/23. 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.
Wed 6/104:47 pm
CMH
- ONT
1 stop20h 18m
Frontier
Deal found 4/23![Frontier logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 5/106:05 pm
CMH
- ONT
2 stops40h 30m
Frontier
Deal found 4/23![Frontier logo]()
$153
This Delta deal was found by Cheapflights users on 4/23. 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 6/102:00 pm
CMH
- ONT
2 stops12h 45m
Delta
Deal found 4/23![Delta logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 4/25. 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 6/26:05 pm
CMH
- ONT
2 stops28h 27m
Frontier
Deal found 4/25![Frontier logo]()
$165
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 April 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $230 (Frontier) |
One-way from | $109 (Super.com) |
Popular in | February |
Cheapest in | September |
Average price | $504 |
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 April 25, 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 - ONT
CMHONT
Columbus
Tue 5/26
7:30 am-12:19 pm
1 stop7h 49m
Ontario
Tue 6/2
12:07 pm-12:25 am
1 stop9h 18m
$369
ColumbusOntario
CMH - ONT
CMHONT
Columbus
Tue 6/2
5:58 pm-11:34 pm
2 stops8h 36m
Ontario
Thu 6/11
5:24 pm-9:07 am
2 stops12h 43m
$401
ColumbusOntario
CMH - ONT
CMHONT
Columbus
Wed 5/27
4:49 pm-11:34 pm
2 stops9h 45m
Ontario
Mon 6/1
4:57 pm-9:05 am
2 stops13h 08m
$422
ColumbusOntario
CMH - ONT
CMHONT
Columbus
Tue 5/26
12:55 pm-6:36 pm
1 stop8h 41m
Ontario
Sun 5/31
10:00 pm-4:20 pm
2 stops15h 20m
$439
ColumbusOntario
CMH - ONT
CMHONT
Columbus
Sun 7/5
6:00 am-10:40 am
1 stop7h 40m
Ontario
Thu 7/9
10:00 pm-9:02 am
1 stop8h 02m
$477
ColumbusOntario
CMH - ONT
CMHONT
Columbus
Sun 7/5
6:00 am-10:40 am
1 stop7h 40m
Ontario
Wed 7/8
1:00 pm-10:52 pm
1 stop6h 52m
$477
Quickest round-trip
ColumbusOntario
CMH - ONT
CMHONT
Columbus
Tue 6/23
6:10 pm-11:00 pm
2 stops7h 50m
Ontario
Sun 6/28
4:50 pm-1:50 am
1 stop6h 00m
$482
ColumbusOntario
CMH - ONT
CMHONT
Columbus
Sun 6/28
8:05 pm-12:25 am
1 stop7h 20m
Ontario
Sun 7/5
11:55 pm-10:05 am
1 stop7h 10m
$494
ColumbusOntario
CMH - ONT
CMHONT
Columbus
Sun 5/10
7:17 pm-9:45 am
1 stop17h 28m
Ontario
Thu 5/28
7:41 pm-6:49 pm
1 stop20h 08m
$509
ColumbusOntario
CMH - ONT
CMHONT
Columbus
Wed 7/8
3:30 pm-8:42 pm
1 stop8h 12m
Ontario
Sun 7/12
6:30 am-4:53 pm
1 stop7h 23m
$577
Showing 1-10 of 22 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 April.
| 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*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | 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
Prices
More
What is the cheapest month to book a flight from Columbus Airport to Ontario?
Currently, September is the cheapest month in which you can book a flight from Columbus Airport to Ontario (average of $290). 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?
What’s the top layover airport for flights from Columbus Airport to Ontario?
Share of 1-stop round-trip flights from Columbus Airport to Ontario chosen by Cheapflights users in the past 12 months, using the same layover each way.
Dallas (DFW) – chosen by Cheapflights users on 60% of 1-stop itineraries from Columbus Airport to Ontario on Cheapflights.
What’s the cheapest layover airport for flights from Columbus Airport to Ontario?
Average round-trip fare for 1-stop flights from Columbus Airport to Ontario, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Dallas (DFW) is the most affordable 1-stop option, with an average round-trip price of $186.
What’s the fastest layover option from Columbus Airport to Ontario?
Shortest average travel time for 1-stop one-way flights from Columbus Airport to Ontario, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 6h 37m.
Which airport typically offers the quickest layover for flights from Columbus Airport to Ontario?
Average layover duration for 1-stop one-way flights from Columbus Airport to Ontario, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 1h 11m.
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 April 25, 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.
Overall
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Food
7.0
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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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 April 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$208 | Average$344 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$228 | Average$488 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$296 | Average$436 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$342 | Average$449 | FlexibilityNo cancel fee | On-time63% |