HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$329+ 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 11/29. Fares are subject to change and may not be available on all flights or dates of travel.
COU — ONT
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Columbia to Ontario 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.

Find 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 October 29, 2025.

This United Airlines deal was found by Cheapflights users on 10/28. 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 11/49:00 amCOU - ONT
1 stop5h 31mUnited Airlines
Mon 11/101:29 pmONT - COU
1 stop5h 22mUnited Airlines
Deal found 10/28$458
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Tue 11/253:02 pmCOU - ONT
1 stop9h 29mUnited Airlines
Mon 12/295:05 amONT - COU
2 stops10h 20mUnited Airlines
Deal found 10/27$467
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Thu 10/303:02 pmCOU - ONT
1 stop9h 29mUnited Airlines
Sat 11/11:32 pmONT - COU
1 stop5h 19mUnited Airlines
Deal found 10/26$518
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Sun 11/233:02 pmCOU - ONT
1 stop9h 29mUnited Airlines
Thu 11/276:00 amONT - COU
2 stops8h 23mUnited Airlines
Deal found 10/27$529
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Sat 11/299:00 amCOU - ONT
1 stop5h 33mUnited Airlines
Mon 12/295:05 amONT - COU
2 stops10h 20mUnited Airlines
Deal found 10/27$552
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Sat 11/299:00 amCOU - ONT
1 stop5h 33mUnited Airlines
Mon 12/225:05 amONT - COU
1 stop13h 23mUnited Airlines
Deal found 10/27$572
This United Airlines deal was found by Cheapflights users on 10/28. 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 10/303:02 pmCOU - ONT
1 stop9h 29mUnited Airlines
Thu 11/61:29 pmONT - COU
1 stop5h 22mUnited Airlines
Deal found 10/28$579
This United Airlines deal was found by Cheapflights users on 10/27. 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 12/119:00 amCOU - ONT
1 stop13h 42mUnited Airlines
Thu 12/185:05 amONT - COU
2 stops14h 14mUnited Airlines
Deal found 10/27$584

Cheap 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 October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$437
(United Airlines)

One-way from

$329
(United Airlines)

Popular in

March

Cheapest in

January

Average price

$338
Provider with most accurate pricing for Columbia Regional-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Columbia Regional-Ontario flights.
Search Deals
From Columbia Regional to Ontario
Search Deals
One-way flight from Columbia Regional to Ontario
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($114 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 29, 2025.
Use the filters below to find and compare flights from Columbia to Ontario that are best for you.

Fly from

Columbia

Fly to

Ontario

Route

Depart

Return

Price

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Tue 1/6

11:17 am-10:53 pm

2 stops13h 36m

Ontario

Wed 1/14

1:24 pm-9:05 pm

1 stop5h 41m

$437

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Sun 11/23

3:02 pm-10:31 pm

1 stop9h 29m

Ontario

Thu 11/27

6:00 am-4:23 pm

2 stops8h 23m

$529

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Sat 11/29

9:00 am-12:33 pm

1 stop5h 33m

Ontario

Mon 12/29

5:05 am-5:25 pm

2 stops10h 20m

$552

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Thu 12/11

9:00 am-8:42 pm

1 stop13h 42m

Ontario

Thu 12/18

5:05 am-9:19 pm

2 stops14h 14m

$584

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Sat 11/29

9:00 am-12:33 pm

1 stop5h 33m

Ontario

Tue 12/23

5:05 am-8:28 pm

1 stop13h 23m

$602

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Tue 12/23

3:10 pm-10:25 pm

1 stop9h 15m

Ontario

Mon 12/29

5:05 am-5:25 pm

2 stops10h 20m

$627

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Sat 11/29

9:00 am-12:33 pm

1 stop5h 33m

Ontario

Sun 12/28

5:05 am-5:25 pm

2 stops10h 20m

$639

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Tue 11/25

3:02 pm-10:31 pm

1 stop9h 29m

Ontario

Mon 12/29

11:59 pm-2:35 pm

1 stop12h 36m

$962

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Sat 11/29

9:00 am-12:33 pm

1 stop5h 33m

$329

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Mon 12/29

8:45 am-12:38 pm

1 stop5h 53m

$453

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 15 results
1
2

Compare providers for flights from Columbia 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 Columbia to Ontario in October.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Columbia, Missouri-Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Columbia, Missouri-Ontario flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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 October 29, 2025.
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
7.2
Good
11,032 reviews

Comfort

7.2

Entertainment

6.9

Crew

8.0

Food

6.4

Boarding

7.5

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2024

LHR - SAN

This was the best flight I have experienced in all the years I have been f doing this journey with BA. Flight, food and service A1. Well done BA.
American Airlines
7.2
Good
11,032 reviews
American Airlines
7.2
Good
11,032 reviews

Comfort

7.2

Entertainment

6.9

Crew

8.0

Food

6.4

Boarding

7.5

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2024

LHR - SAN

This was the best flight I have experienced in all the years I have been f doing this journey with BA. Flight, food and service A1. Well done BA.

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 13h 36m. Your travel time can differ by up to . Airlines will cover a distance of 1442 mi.

  • 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.

See more FAQs

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 for Columbia to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
St. Louis to Las Vegas flights
Kansas City to Las Vegas flights
Kansas City to Los Angeles flights
St. Louis to Los Angeles flights
St. Louis to San Francisco flights
St. Louis to San Diego flights
Kansas City to Ontario flights
Kansas City to San Francisco flights
Kansas City to San Diego flights
St. Louis to Ontario flights
Kansas City to Santa Ana flights
Kansas City to Burbank flights
St. Louis to Santa Ana flights
Springfield to Los Angeles flights
St. Louis to Burbank flights
St. Louis to Sacramento flights
Kansas City to Sacramento flights
St. Louis to San Jose flights
Springfield to Las Vegas flights
Kansas City to San Jose flights
Springfield to San Diego flights
Kansas City to Oakland flights
Kansas City to Palm Springs flights
Springfield to Ontario flights
Springfield to Sacramento flights
St. Louis to Oakland flights
St. Louis to Long Beach flights
Springfield to San Jose flights
Kansas City to Fresno flights
St. Louis to Palm Springs flights
Kansas City to Long Beach flights
Kansas City to Reno flights
Springfield to Santa Ana flights
St. Louis to Fresno flights
St. Louis to Reno flights
Springfield to San Francisco flights
Kansas City to Monterey flights
St. Louis to Medford flights
Joplin to Los Angeles flights
St. Louis to Monterey flights
Columbia to Los Angeles flights
Kansas City to Medford flights
Columbia to Las Vegas flights
Springfield to Santa Barbara flights
Columbia to San Jose flights
Joplin to Ontario flights
Columbia to San Diego flights
Kansas City to Bakersfield flights
Springfield to Reno flights

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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$444Average$556FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.