$328+ 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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — COU
Sep 26 — Oct 31
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 August 27, 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 August 27, 2026.
This United Airlines deal was found by Cheapflights users on 8/26. 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 10/241:22 pm -
1 stop5h 11m
Tue 11/39:01 am -
1 stop5h 32m
Deal found 8/26![United Airlines logo]()
$328
This United Airlines deal was found by Cheapflights users on 8/26. 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 10/248:03 am -
2 stops10h 30m
Sat 10/3111:20 am -
2 stops11h 31m
Deal found 8/26![United Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 8/23. 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.
Sat 10/178:03 am -
2 stops10h 30m
Tue 10/203:19 pm -
1 stop9h 30m
Deal found 8/23![United Airlines logo]()
$341
This American Airlines deal was found by Cheapflights users on 8/26. 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 10/142:22 pm -
1 stop5h 31m
Sat 10/175:14 pm -
1 stop5h 57m
Deal found 8/26![American Airlines logo]()
$398
This American Airlines deal was found by Cheapflights users on 8/26. 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.
Thu 10/227:34 pm -
2 stops12h 27m
Sat 10/315:14 pm -
1 stop5h 57m
Deal found 8/26![American Airlines logo]()
$404
This United Airlines deal was found by Cheapflights users on 8/26. 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 10/311:29 pm -
1 stop5h 12m
Wed 11/48:00 am -
2 stops14h 15m
Deal found 8/26![United Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 8/26. 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 10/26:32 pm -
2 stops14h 07m
Sat 10/103:19 pm -
1 stop9h 30m
Deal found 8/26![United Airlines logo]()
$456
This American Airlines deal was found by Cheapflights users on 8/26. 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.
Thu 10/227:34 pm -
2 stops12h 27m
Sun 11/15:11 pm -
1 stop8h 35m
Deal found 8/26![American Airlines logo]()
$474
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 August 27, 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 August 27, 2026.
This American Airlines deal was found by Cheapflights users on 8/26. 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 10/167:34 pm -
2 stops12h 24m
Sat 10/245:14 pm -
1 stop6h 07m
Deal found 8/26![American Airlines logo]()
$334
This United Airlines deal was found by Cheapflights users on 8/26. 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 10/241:22 pm -
1 stop5h 11m
Tue 11/39:01 am -
2 stops13h 14m
Deal found 8/26![United Airlines logo]()
$334
This American Airlines deal was found by Cheapflights users on 8/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:34 pm -
2 stops12h 24m
Tue 10/205:14 pm -
1 stop8h 38m
Deal found 8/23![American Airlines logo]()
$334
This United Airlines deal was found by Cheapflights users on 8/26. 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 10/248:03 am -
2 stops10h 30m
Sat 10/3111:20 am -
2 stops11h 31m
Deal found 8/26![United Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 8/26. 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.
Thu 10/227:34 pm -
2 stops12h 27m
Sat 10/3110:40 am -
2 stops10h 03m
Deal found 8/26![American Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 8/26. 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 10/311:29 pm -
1 stop5h 12m
Wed 11/48:00 am -
2 stops14h 15m
Deal found 8/26![United Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 8/26. 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 10/26:32 pm -
2 stops14h 07m
Sat 10/103:19 pm -
1 stop9h 30m
Deal found 8/26![United Airlines logo]()
$456
Last-minute flights from Ontario to ColumbiaDiscover last-minute flight deals from Ontario to Columbia. Data last updated August 27, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Columbia. Data last updated August 27, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/27. 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 8/279:01 am -
2 stops11h 54m
Mon 8/3110:55 am -
2 stops14h 04m
Deal found 8/27![United Airlines logo]()
$1,089
This United Airlines deal was found by Cheapflights users on 8/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/289:01 am -
2 stops11h 54m
Sun 8/309:00 am -
1 stop5h 50m
Deal found 8/25![United Airlines logo]()
$789
This American Airlines deal was found by Cheapflights users on 8/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:05 am -
1 stop7h 42m
Fri 9/114:51 pm -
1 stop7h 46m
Deal found 8/23![American Airlines logo]()
$897
This United Airlines deal was found by Cheapflights users on 8/23. 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.
Mon 9/76:00 am -
2 stops26h 39m
Fri 9/113:11 pm -
2 stops31h 42m
Deal found 8/23![United Airlines logo]()
$967
This United Airlines deal was found by Cheapflights users on 8/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/81:56 pm -
2 stops18h 43m
Sat 9/123:11 pm -
1 stop9h 48m
Deal found 8/24![United Airlines logo]()
$597
This United Airlines deal was found by Cheapflights users on 8/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/171:18 pm -
1 stop5h 21m
Sun 9/2011:17 am -
1 stop13h 42m
Deal found 8/25![United Airlines logo]()
$906
This United Airlines deal was found by Cheapflights users on 8/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/241:24 pm -
1 stop5h 09m
Mon 9/283:19 pm -
1 stop9h 30m
Deal found 8/24![United Airlines logo]()
$797
This United Airlines deal was found by Cheapflights users on 8/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/251:24 pm -
1 stop5h 09m
Mon 9/289:00 am -
1 stop13h 58m
Deal found 8/24![United Airlines logo]()
$1,069
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 August 27, 2026.
Search for one-way flight options from Ontario to Columbia. Find affordable one-way fares based on user searches. Data last updated August 27, 2026.
This United Airlines deal was found by Cheapflights users on 8/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:00 am -
1 stop13h 33m
Deal found 8/24![United Airlines logo]()
$412
This United Airlines deal was found by Cheapflights users on 8/23. 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.
Sun 8/307:13 pm -
2 stops13h 03m
Deal found 8/23![United Airlines logo]()
$504
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 August 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $328 (United Airlines) |
Popular in | June |
Cheapest in | December |
Average price | $338 |
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 7,457,451 searches. Data last updated August 27, 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
OntarioColumbia
ONT Ontario - COU Columbia Regional
ONTCOU
Ontario
Fri 10/16
7:34 pm-9:58 am
2 stops12h 24m
Columbia Regional
Sat 10/24
5:14 pm-9:21 pm
1 stop6h 07m
$334
Quickest round-trip
OntarioColumbia
ONT Ontario - COU Columbia Regional
ONTCOU
Ontario
Sat 10/24
1:22 pm-8:33 pm
1 stop5h 11m
Columbia Regional
Tue 11/3
9:01 am-8:15 pm
2 stops13h 14m
$334
OntarioColumbia
ONT Ontario - COU Columbia Regional
ONTCOU
Ontario
Fri 10/16
7:34 pm-9:58 am
2 stops12h 24m
Columbia Regional
Tue 10/20
5:14 pm-11:52 pm
1 stop8h 38m
$334
OntarioColumbia
ONT Ontario - COU Columbia Regional
ONTCOU
Ontario
Sat 10/24
8:03 am-8:33 pm
2 stops10h 30m
Columbia Regional
Sat 10/31
11:20 am-8:51 pm
2 stops11h 31m
$339
OntarioColumbia
ONT Ontario - COU Columbia Regional
ONTCOU
Ontario
Thu 10/22
7:34 pm-10:01 am
2 stops12h 27m
Columbia Regional
Sat 10/31
10:40 am-6:43 pm
2 stops10h 03m
$409
OntarioColumbia
ONT Ontario - COU Columbia Regional
ONTCOU
Ontario
Sat 10/31
1:29 pm-8:41 pm
1 stop5h 12m
Columbia Regional
Wed 11/4
8:00 am-8:15 pm
2 stops14h 15m
$424
OntarioColumbia
ONT Ontario - COU Columbia Regional
ONTCOU
Ontario
Fri 10/2
6:32 pm-10:39 am
2 stops14h 07m
Columbia Regional
Sat 10/10
3:19 pm-10:49 pm
1 stop9h 30m
$456
Cheapest one-way
OntarioColumbia
ONT Ontario - COU Columbia Regional
ONTCOU
Ontario
Thu 10/22
5:00 am-8:33 pm
1 stop13h 33m
$412
Quickest one-way
OntarioColumbia
ONT Ontario - COU Columbia Regional
ONTCOU
Ontario
Sun 8/30
7:13 pm-10:16 am
2 stops13h 03m
$504
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 August.
| 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 August 27, 2026.
Read reviews from past customers who have flown United Airlines and 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.
Comfort
7.3
Crew
8.1
Entertainment
7.1
Boarding
7.7
Food
6.7
Overall
7.4
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Comfort
7.3
Crew
8.1
Entertainment
7.1
Boarding
7.7
Food
6.7
Overall
7.4
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Comfort
7.3
Crew
8.1
Entertainment
7.1
Boarding
7.7
Food
6.7
Overall
7.4
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
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 August 27, 2026.
Complete your trip
Complete your trip to Columbia by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Columbia by cabin class
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Ontario and Columbia flights
Browse other Ontario and Columbia flight options. Last updated on August 27, 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 August 27, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Ontario to Columbia
Discover the top 2 airlines 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 7,457,451 searches. Data last updated August 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$398 | Average$547 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$418 | Average$425 | FlexibilityNo cancel fee | On-time69% |