$348+ 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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — COU
Dec 5 — Dec 121
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
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 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 November 5, 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 November 5, 2026.
This United Airlines deal was found by Cheapflights users on 11/1. 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 12/31:40 pm -
1 stop5h 59m
Sat 12/511:25 am -
1 stop9h 19m
Deal found 11/1![United Airlines logo]()
$348
This American Airlines deal was found by Cheapflights users on 11/1. 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 12/37:49 pm -
2 stops11h 58m
Sat 12/55:11 pm -
1 stop7h 47m
Deal found 11/1![American Airlines logo]()
$354
This United Airlines deal was found by Cheapflights users on 11/1. 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 12/41:40 pm -
1 stop5h 59m
Sat 12/511:25 am -
1 stop9h 19m
Deal found 11/1![United Airlines logo]()
$458
This United Airlines deal was found by Cheapflights users on 11/1. 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 12/41:40 pm -
1 stop5h 59m
Sun 12/69:00 am -
1 stop5h 34m
Deal found 11/1![United Airlines logo]()
$603
This American Airlines deal was found by Cheapflights users on 11/2. 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 12/151:02 pm -
1 stop6h 37m
Thu 12/176:44 pm -
1 stop7h 15m
Deal found 11/2![American Airlines logo]()
$666
This American Airlines deal was found by Cheapflights users on 11/2. 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 11/196:30 am -
2 stops10h 48m
Sun 11/227:48 pm -
1 stop6h 11m
Deal found 11/2![American Airlines logo]()
$675
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 November 5, 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 November 5, 2026.
This United Airlines deal was found by Cheapflights users on 11/1. 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 12/31:40 pm -
1 stop5h 59m
Sat 12/511:25 am -
1 stop9h 19m
Deal found 11/1![United Airlines logo]()
$348
This United Airlines deal was found by Cheapflights users on 11/1. 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 12/41:40 pm -
1 stop5h 59m
Sat 12/511:25 am -
1 stop9h 19m
Deal found 11/1![United Airlines logo]()
$458
This United Airlines deal was found by Cheapflights users on 10/31. 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 1/309:45 am -
2 stops8h 45m
Wed 2/38:53 am -
1 stop5h 47m
Deal found 10/31![United Airlines logo]()
$464
This United Airlines deal was found by Cheapflights users on 11/4. 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 2/246:37 pm -
2 stops14h 23m
Sat 2/2711:35 am -
2 stops11h 42m
Deal found 11/4![United Airlines logo]()
$479
Last-minute flights from Ontario to ColumbiaDiscover last-minute flight deals from Ontario to Columbia. Data last updated November 5, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Columbia. Data last updated November 5, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 10/31. 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 11/412:42 pm -
1 stop7h 01m
Sat 11/712:05 pm -
1 stop8h 37m
Deal found 10/31![American Airlines logo]()
$518
This American Airlines deal was found by Cheapflights users on 10/31. 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 11/1112:42 pm -
1 stop7h 01m
Sat 11/1412:05 pm -
1 stop8h 37m
Deal found 10/31![American Airlines logo]()
$453
This United Airlines deal was found by Cheapflights users on 10/31. 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 11/111:29 pm -
1 stop5h 12m
Sat 11/148:00 am -
2 stops14h 15m
Deal found 10/31![United Airlines logo]()
$459
This United Airlines deal was found by Cheapflights users on 11/1. 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 12/31:40 pm -
1 stop5h 59m
Sat 12/511:25 am -
1 stop9h 19m
Deal found 11/1![United Airlines logo]()
$348
This American Airlines deal was found by Cheapflights users on 11/1. 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 12/37:49 pm -
2 stops11h 58m
Sat 12/55:11 pm -
1 stop7h 47m
Deal found 11/1![American Airlines logo]()
$354
This United Airlines deal was found by Cheapflights users on 11/1. 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 12/41:40 pm -
1 stop5h 59m
Sat 12/511:25 am -
1 stop9h 19m
Deal found 11/1![United Airlines logo]()
$458
This United Airlines deal was found by Cheapflights users on 11/1. 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 12/41:40 pm -
1 stop5h 59m
Sun 12/69:00 am -
1 stop5h 34m
Deal found 11/1![United Airlines logo]()
$603
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 November 5, 2026.
Search for one-way flight options from Ontario to Columbia. Find affordable one-way fares based on user searches. Data last updated November 5, 2026.
This United Airlines deal was found by Cheapflights users on 11/2. 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 12/31:40 pm -
1 stop5h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![United Airlines logo]()
$374
This United Airlines deal was found by Cheapflights users on 11/2. 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 11/171:29 pm -
1 stop5h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![United Airlines logo]()
$423
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 November 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $348 (United Airlines) |
Popular in | June |
Cheapest in | August |
Average price | $578 |
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 November 5, 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
Thu 12/3
1:40 pm-9:39 pm
1 stop5h 59m
Columbia Regional
Sat 12/5
11:25 am-6:44 pm
1 stop9h 19m
$348
Quickest round-trip
OntarioColumbia
ONT Ontario - COU Columbia Regional
ONTCOU
Ontario
Tue 11/17
1:29 pm-8:41 pm
1 stop5h 12m
Columbia Regional
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$423
OntarioColumbia
ONT Ontario - COU Columbia Regional
ONTCOU
Ontario
Fri 12/4
1:40 pm-9:39 pm
1 stop5h 59m
Columbia Regional
Sat 12/5
11:25 am-6:44 pm
1 stop9h 19m
$458
OntarioColumbia
ONT Ontario - COU Columbia Regional
ONTCOU
Ontario
Sat 1/30
9:45 am-8:30 pm
2 stops8h 45m
Columbia Regional
Wed 2/3
8:53 am-12:40 pm
1 stop5h 47m
$464
OntarioColumbia
ONT Ontario - COU Columbia Regional
ONTCOU
Ontario
Wed 2/24
6:37 pm-11:00 am
2 stops14h 23m
Columbia Regional
Sat 2/27
11:35 am-9:17 pm
2 stops11h 42m
$479
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 November.
| 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 November 5, 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.
Crew
8.1
Comfort
7.3
Food
6.7
Boarding
7.7
Overall
7.3
Entertainment
7.1
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Crew
8.1
Comfort
7.3
Food
6.7
Boarding
7.7
Overall
7.3
Entertainment
7.1
Reviews
1 / 20
4.0
OkayDynasty,May 2026
LAX - EWR
Crew
8.1
Comfort
7.3
Food
6.7
Boarding
7.7
Overall
7.3
Entertainment
7.1
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
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Columbia flight routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Ontario
Popular flights
Alternative routes for Ontario to Columbia
See prices for flight routes from nearby airports that may be better suited for you.
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 November 5, 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
Find flights from Ontario to Columbia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Columbia flights
Browse other Ontario and Columbia flight options. Last updated on November 5, 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 November 5, 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 November 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$328 | Average$547 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$348 | Average$425 | FlexibilityNo cancel fee | On-time69% |