$318+ Cheap flights from Ontario to Columbia, MO (ONT - COU)
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 7/5. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — COU
Jul 14 — Jul 211
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Columbia 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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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 Ontario to Columbia
Cheapest
Best
Last-minute
One-way
Cheapest flights from Ontario to ColumbiaExplore the most affordable flight options available from Ontario to Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 14, 2026.
Explore the most affordable flight options available from Ontario to Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 14, 2026.
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/512:59 am
ONT
- COU
1 stop8h 15m
American Airlines
Sat 7/117:26 pm
COU
- ONT
1 stop6h 33m
American Airlines
Deal found 6/12![American Airlines logo]()
$318
This American Airlines deal was found by Cheapflights users on 6/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/112:15 pm
ONT
- COU
1 stop6h 05m
American Airlines
Sat 7/187:26 pm
COU
- ONT
1 stop6h 33m
American Airlines
Deal found 6/13![American Airlines logo]()
$379
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/247:15 pm
ONT
- COU
2 stops12h 46m
American Airlines
Mon 7/277:26 pm
COU
- ONT
1 stop6h 33m
American Airlines
Deal found 6/12![American Airlines logo]()
$403
This United Airlines deal was found by Cheapflights users on 6/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/121:18 pm
ONT
- COU
1 stop5h 41m
United Airlines
Mon 9/213:11 pm
COU
- ONT
1 stop9h 48m
United Airlines
Deal found 6/12![United Airlines logo]()
$408
This United Airlines deal was found by Cheapflights users on 6/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/221:18 pm
ONT
- COU
1 stop5h 41m
United Airlines
Sat 9/2611:19 am
COU
- ONT
2 stops13h 40m
United Airlines
Deal found 6/13![United Airlines logo]()
$414
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/51:18 pm
ONT
- COU
1 stop5h 41m
United Airlines
Wed 9/911:20 am
COU
- ONT
2 stops10h 41m
United Airlines
Deal found 6/11![United Airlines logo]()
$454
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/272:18 pm
ONT
- COU
1 stop6h 02m
American Airlines
Wed 7/15:19 pm
COU
- ONT
1 stop8h 40m
American Airlines
Deal found 6/11![American Airlines logo]()
$478
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/56:11 am
ONT
- COU
2 stops10h 45m
American Airlines
Sat 7/117:26 pm
COU
- ONT
1 stop6h 33m
American Airlines
Deal found 6/11![American Airlines logo]()
$483
Best flights from Ontario to ColumbiaDiscover carefully curated flight deals from Ontario to Columbia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 14, 2026.
Discover carefully curated flight deals from Ontario to Columbia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 14, 2026.
This American Airlines deal was found by Cheapflights users on 6/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/111:11 pm
ONT
- COU
2 stops7h 09m
American Airlines
Sat 7/187:26 pm
COU
- ONT
1 stop6h 33m
American Airlines
Deal found 6/13![American Airlines logo]()
$384
This United Airlines deal was found by Cheapflights users on 6/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/121:18 pm
ONT
- COU
1 stop5h 41m
United Airlines
Fri 9/183:11 pm
COU
- ONT
1 stop9h 48m
United Airlines
Deal found 6/12![United Airlines logo]()
$408
This United Airlines deal was found by Cheapflights users on 6/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/221:18 pm
ONT
- COU
1 stop5h 41m
United Airlines
Sat 9/2611:19 am
COU
- ONT
2 stops13h 40m
United Airlines
Deal found 6/13![United Airlines logo]()
$414
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/51:18 pm
ONT
- COU
1 stop5h 41m
United Airlines
Wed 9/911:20 am
COU
- ONT
2 stops10h 41m
United Airlines
Deal found 6/11![United Airlines logo]()
$454
Last-minute flights from Ontario to ColumbiaDiscover last-minute flight deals from Ontario to Columbia. Data last updated June 14, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Columbia. Data last updated June 14, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/247:00 am
ONT
- COU
1 stop7h 49m
American Airlines
Wed 7/15:19 pm
COU
- ONT
1 stop8h 40m
American Airlines
Deal found 6/11![American Airlines logo]()
$559
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/262:18 pm
ONT
- COU
1 stop6h 02m
American Airlines
Mon 6/297:39 pm
COU
- ONT
1 stop6h 20m
American Airlines
Deal found 6/11![American Airlines logo]()
$601
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/272:18 pm
ONT
- COU
1 stop6h 02m
American Airlines
Wed 7/15:19 pm
COU
- ONT
1 stop8h 40m
American Airlines
Deal found 6/11![American Airlines logo]()
$478
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/272:18 pm
ONT
- COU
1 stop6h 02m
American Airlines
Thu 7/27:26 pm
COU
- ONT
1 stop6h 33m
American Airlines
Deal found 6/11![American Airlines logo]()
$504
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/512:59 am
ONT
- COU
1 stop8h 15m
American Airlines
Sat 7/117:26 pm
COU
- ONT
1 stop6h 33m
American Airlines
Deal found 6/12![American Airlines logo]()
$318
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/56:11 am
ONT
- COU
2 stops10h 45m
American Airlines
Sat 7/117:26 pm
COU
- ONT
1 stop6h 33m
American Airlines
Deal found 6/11![American Airlines logo]()
$483
This American Airlines deal was found by Cheapflights users on 6/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/112:15 pm
ONT
- COU
1 stop6h 05m
American Airlines
Sat 7/187:26 pm
COU
- ONT
1 stop6h 33m
American Airlines
Deal found 6/13![American Airlines logo]()
$379
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/247:15 pm
ONT
- COU
2 stops12h 46m
American Airlines
Mon 7/277:26 pm
COU
- ONT
1 stop6h 33m
American Airlines
Deal found 6/12![American Airlines logo]()
$403
One-way flights from Ontario to ColumbiaSearch for one-way flight options from Ontario to Columbia. Find affordable one-way fares based on user searches. Data last updated June 14, 2026.
Search for one-way flight options from Ontario to Columbia. Find affordable one-way fares based on user searches. Data last updated June 14, 2026.
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/76:10 am
ONT
- COU
1 stop6h 40m
United Airlines
Deal found 6/11![United Airlines logo]()
$363
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Mon 7/136:39 pm
ONT
- COU
2 stops13h 34m
United Airlines
Deal found 6/10![United Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 6/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/121:18 pm
ONT
- COU
1 stop5h 21m
United Airlines
Deal found 6/13![United Airlines logo]()
$414
This United Airlines deal was found by Cheapflights users on 6/10. 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 6/196:05 am
ONT
- COU
1 stop6h 44m
United Airlines
Deal found 6/10![United Airlines logo]()
$584
Find flight deals from Ontario to Columbia
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Columbia (COU). 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 June 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $318 (American Airlines) |
Popular in | June |
Cheapest in | December |
Average price | $706 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Columbia 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 June 14, 2026.
Use the filters below to find and compare flights from Ontario to Columbia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
OntarioColumbia
ONT - COU
ONTCOU
Ontario
Sat 7/11
1:11 pm-10:20 pm
2 stops7h 09m
Columbia Regional
Sat 7/18
7:26 pm-11:59 pm
1 stop6h 33m
$384
OntarioColumbia
ONT - COU
ONTCOU
Ontario
Sat 9/12
1:18 pm-8:59 pm
1 stop5h 41m
Columbia Regional
Fri 9/18
3:11 pm-10:59 pm
1 stop9h 48m
$408
OntarioColumbia
ONT - COU
ONTCOU
Ontario
Tue 9/22
1:18 pm-8:59 pm
1 stop5h 41m
Columbia Regional
Sat 9/26
11:19 am-10:59 pm
2 stops13h 40m
$414
OntarioColumbia
ONT - COU
ONTCOU
Ontario
Sat 9/5
1:18 pm-8:59 pm
1 stop5h 41m
Columbia Regional
Wed 9/9
11:20 am-8:01 pm
2 stops10h 41m
$454
Cheapest one-way
OntarioColumbia
ONT - COU
ONTCOU
Ontario
Fri 8/7
6:10 am-2:50 pm
1 stop6h 40m
$363
Quickest one-way
OntarioColumbia
ONT - COU
ONTCOU
Ontario
Sun 7/12
1:18 pm-8:39 pm
1 stop5h 21m
$414
OntarioColumbia
ONT - COU
ONTCOU
Ontario
Fri 6/19
6:05 am-2:49 pm
1 stop6h 44m
$584
Sorted by cheapest first
Compare providers for flights from Ontario to Columbia
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 Ontario to Columbia in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Ontario-Columbia, Missouri flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Columbia, Missouri flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Columbia, Missouri flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Columbia, Missouri 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 Ontario-Columbia, Missouri 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 Ontario to Columbia
Have a flexible travel schedule? Discover the best time to fly to Columbia from Ontario with our price prediction graph.
ONT-COU
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.
Reviews of airlines servicing Columbia
Get insights into the airlines that provide service to Columbia. 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 Columbia. Reviews last updated June 14, 2026.
Read reviews from past customers who have flown American Airlines from Ontario to Columbia. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
7.9
Entertainment
6.9
Food
6.4
Overall
7.1
Boarding
7.5
Comfort
7.2
Reviews
1 / 20
2.0
MediocreAnonymous,Apr 2026
DFW - BDL
Crew
7.9
Entertainment
6.9
Food
6.4
Overall
7.1
Boarding
7.5
Comfort
7.2
Reviews
1 / 20
2.0
MediocreAnonymous,Apr 2026
DFW - BDL
Related info for your journey
Find useful and relevant information for your journey from Ontario to Columbia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Columbia?
Book flights to Columbia if you plan to visit one of these locationsJefferson City
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Other flights to Columbia
Explore flights to Columbia departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 14, 2026.
Complete your trip
Complete your trip to Columbia by adding a car rental and/or hotel reservation to your travel itinerary.
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Ontario and Columbia flights
Browse other Ontario and Columbia flight options. Last updated on June 14, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on June 14, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Ontario to Columbia
Discover the top airline that operate flights from Ontario to Columbia. 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 June 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$418 | Average$547 | FlexibilityNo cancel fee | On-time71% |