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Ontario

$316+ Cheap flights from Columbia, MO to Ontario (COU - 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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
COU — ONT
Apr 15 — Apr 221
Wed 4/15
Wed 4/22
1 adult, Economy
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Cheap flight deals from Columbia to Ontario

Cheapest flights from Columbia to Ontario
Explore the most affordable flight options available from Columbia to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 16, 2026.

This American Airlines deal was found by Cheapflights users on 3/16. 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 4/15:39 pm
COU
-
ONT
1 stop6h 51m
American Airlines
Sat 4/42:39 pm
ONT
-
COU
1 stop5h 57m
American Airlines
Deal found 3/16$368
This United Airlines deal was found by Cheapflights users on 3/16. 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 4/29:02 am
COU
-
ONT
1 stop5h 36m
United Airlines
Sat 4/41:34 pm
ONT
-
COU
1 stop5h 29m
United Airlines
Deal found 3/16$388
This United Airlines deal was found by Cheapflights users on 3/11. 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.
Wed 4/153:23 pm
COU
-
ONT
1 stop9h 08m
United Airlines
Sat 4/181:34 pm
ONT
-
COU
1 stop5h 29m
United Airlines
Deal found 3/11$398
This United Airlines deal was found by Cheapflights users on 3/12. 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 5/211:30 am
COU
-
ONT
1 stop8h 31m
United Airlines
Tue 5/56:59 pm
ONT
-
COU
2 stops13h 56m
United Airlines
Deal found 3/12$404
This American Airlines deal was found by Cheapflights users on 3/16. 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 4/412:27 pm
COU
-
ONT
2 stops8h 42m
American Airlines
Tue 4/712:19 pm
ONT
-
COU
2 stops8h 34m
American Airlines
Deal found 3/16$419
This United Airlines deal was found by Cheapflights users on 3/11. 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.
Wed 4/153:23 pm
COU
-
ONT
1 stop9h 08m
United Airlines
Tue 4/211:34 pm
ONT
-
COU
1 stop5h 29m
United Airlines
Deal found 3/11$423

Find flight deals from Columbia to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Columbia (COU) 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 March 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$368
(American Airlines)

One-way from

$316
(American Airlines)

Popular in

November

Cheapest in

January

Average price

$325
Provider with most accurate pricing for Columbia Regional-Ontario flight deals.
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Provider most trusted by Cheapflights users for Columbia Regional-Ontario flights.
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From Columbia Regional to Ontario
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One-way flight from Columbia Regional to Ontario
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Columbia 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 March 16, 2026.
Use the filters below to find and compare flights from Columbia to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Wed 4/15

3:23 pm-10:31 pm

1 stop9h 08m

Ontario

Fri 4/24

1:43 pm-9:03 pm

1 stop5h 20m

$398

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Thu 4/2

11:30 am-10:45 pm

2 stops13h 15m

Ontario

Sat 4/4

1:34 pm-9:03 pm

1 stop5h 29m

$402

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Sat 5/2

11:30 am-8:36 pm

2 stops11h 06m

Ontario

Sat 5/9

6:00 am-8:49 pm

2 stops12h 49m

$409

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Sat 5/2

11:30 am-10:59 pm

2 stops13h 29m

Ontario

Tue 5/5

6:59 pm-10:55 am

2 stops13h 56m

$409
Quickest round-trip

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Fri 4/17

9:02 am-12:37 pm

1 stop5h 35m

Ontario

Sat 4/18

1:34 pm-9:03 pm

1 stop5h 29m

$423

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Thu 4/16

9:02 am-12:38 pm

1 stop5h 36m

Ontario

Sat 4/18

1:34 pm-9:03 pm

1 stop5h 29m

$423

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Wed 4/15

3:23 pm-10:31 pm

1 stop9h 08m

Ontario

Wed 4/22

1:34 pm-9:03 pm

1 stop5h 29m

$423
Cheapest one-way

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Sat 4/18

12:06 pm-6:37 pm

1 stop8h 31m

$316

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Sat 4/25

7:43 pm-11:46 pm

1 stop6h 03m

$318

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Sat 4/25

5:00 am-12:38 pm

2 stops9h 38m

$364

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/15

Showing 1-10 of 13 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on Columbia, Missouri-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Columbia, Missouri-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Columbia, Missouri-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Columbia, Missouri-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 Columbia, Missouri-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 Columbia to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Columbia with our price prediction graph.
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 Columbia to Ontario

What is the cheapest month to book a flight from Columbia, Missouri to Ontario?

Currently, January is the cheapest month in which you can book a flight from Columbia, Missouri to Ontario (average of $258). Flying from Columbia, Missouri to Ontario in November is currently the most expensive (average of $503). 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.

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 March 16, 2026.
See what other customers who have flown with American Airlines from Columbia to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.1
Good
11,466 reviews

Food

6.4

Crew

7.9

Boarding

7.5

Comfort

7.2

Overall

7.1

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

MIA - SFO

Horrible. When they power flights for other airlines there is nothing they can do to change or accommodate any changes
American Airlines
7.1
Good
11,466 reviews
American Airlines
7.1
Good
11,466 reviews

Food

6.4

Crew

7.9

Boarding

7.5

Comfort

7.2

Overall

7.1

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

MIA - SFO

Horrible. When they power flights for other airlines there is nothing they can do to change or accommodate any changes

Related info for your journey

Find useful and relevant information for your journey from Columbia to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Columbia, Missouri to Ontario?

    United Airlines can get you from Columbia, Missouri to Ontario in just under 9h 08m. Your travel time can differ by up to . Airlines will cover a distance of 1442 mi.

  • What is the cheapest airline to fly from Columbia, Missouri to Ontario round-trip?

    Our cheapest airline available from Columbia, Missouri to Ontario is American Airlines. Our recent data shows that you can find tickets from as low as $444 on this airline.

  • Can I find deals for flights from Columbia to Ontario that include hotel bookings?

    Yes. In addition to deals on Columbia to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Columbia to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Columbia to Ontario.

  • Can I find deals for business class flights from Columbia to Ontario?

    Yes. Cheapflights offers flight deals from Columbia to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Columbia, Missouri to Ontario?

    Currently, January is the cheapest month in which you can book a flight from Columbia, Missouri to Ontario (average of $258). Flying from Columbia, Missouri to Ontario in November is currently the most expensive (average of $503). 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.

See more FAQs

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Top airline flying from Columbia to Ontario

Discover the top airline that operate flights from Columbia 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 March 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$444Average$556FlexibilityNo cancel feeOn-time71%

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