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

United Airlines can get you from Columbia, Missouri to Ontario in just under 6h 02m. Your travel time can differ by up to . Airlines will cover a distance of 1442 mi.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

What is the cheapest time of day to fly from COU to ONT?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Columbia, Missouri to Ontario as you normally would.

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.

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.

$358+ Flights from Columbia, MO to Ontario

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1. Tell us where you want to go

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2. Select your favorite providers

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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 December 15, 2025.

Thu 12/183:10 pmCOU - ONT

1 stop9h 15mUnited Airlines

Sat 12/206:00 amONT - COU

2 stops12h 28mUnited Airlines

Deal found 12/14

$1,060

Best flights from Columbia to Ontario
Discover carefully curated flight deals from Columbia to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 15, 2025.

Sat 2/78:45 amCOU - ONT

1 stop6h 02mUnited Airlines

Sat 2/141:45 pmONT - COU

1 stop4h 55mUnited Airlines

Deal found 12/14

$358

Sat 1/1011:17 amCOU - ONT

2 stops11h 41mUnited Airlines

Tue 1/131:24 pmONT - COU

1 stop5h 09mUnited Airlines

Deal found 12/12

$364

Fri 1/23:10 pmCOU - ONT

1 stop9h 15mUnited Airlines

Wed 1/71:24 pmONT - COU

1 stop5h 09mUnited Airlines

Deal found 12/13

$383

Mon 3/162:46 pmCOU - ONT

1 stop9h 39mUnited Airlines

Mon 3/306:53 pmONT - COU

2 stops13h 36mUnited Airlines

Deal found 12/14

$389

Last-minute flights from Columbia to Ontario
Discover last-minute flight deals from Columbia to Ontario. Data last updated December 15, 2025 and is based on user searches.

Thu 12/183:10 pmCOU - ONT

1 stop9h 15mUnited Airlines

Sat 12/206:00 amONT - COU

2 stops12h 28mUnited Airlines

Deal found 12/14

$1,060

Fri 1/23:10 pmCOU - ONT

1 stop9h 15mUnited Airlines

Wed 1/76:00 amONT - COU

2 stops12h 33mUnited Airlines

Deal found 12/13

$414

Sat 1/1011:17 amCOU - ONT

2 stops11h 41mUnited Airlines

Tue 1/131:24 pmONT - COU

1 stop5h 09mUnited Airlines

Deal found 12/14

$364

One-way flights from Columbia to Ontario
Search for one-way flight options from Columbia to Ontario. Find affordable one-way fares based on user searches. Data last updated December 15, 2025.

Thu 1/18:45 amCOU - ONT

1 stop5h 53mUnited Airlines

Deal found 12/13

$389

Find flight deals from Columbia to Ontario

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$358 (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

Highest demand for flights based on searches. 22% potential increase in price ($136 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($23 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Sat 2/7

8:45 am-12:47 pm

1 stop6h 02m

Ontario

Sat 2/14

1:45 pm-8:40 pm

1 stop4h 55m

$358

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Sat 1/10

11:17 am-8:58 pm

2 stops11h 41m

Ontario

Tue 1/13

1:24 pm-8:33 pm

1 stop5h 09m

$364

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Fri 1/2

3:10 pm-10:25 pm

1 stop9h 15m

Ontario

Wed 1/7

1:24 pm-8:33 pm

1 stop5h 09m

$383

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Mon 3/16

2:46 pm-10:25 pm

1 stop9h 39m

Ontario

Mon 3/30

6:53 pm-10:29 am

2 stops13h 36m

$389

ColumbiaOntario

COU - ONT

COUONT

Columbia Regional

Thu 1/1

8:45 am-12:38 pm

1 stop5h 53m

$389

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Compare providers for flights from Columbia to Ontario

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Columbia to Ontario in December.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars

*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.

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 March is currently the most expensive (average of $660). 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

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

11,052 reviews

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

11,052 reviews

American Airlines

7.2

Good

11,052 reviews

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

How long is the flight from Columbia, Missouri to Ontario?
United Airlines can get you from Columbia, Missouri to Ontario in just under 6h 02m. 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.
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 March is currently the most expensive (average of $660). 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

Browse thousands of different options on Cheapflights for your next trip

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Other flights to Ontario

Top airline flying from Columbia to Ontario

Airline	Cheapest	Average	Flexibility	On-time
American Airlines	Cheapest$444	Average$556	FlexibilityNo cancel fee	On-time71%

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$358+ Cheap flights from Columbia, MO to Ontario (COU - ONT)

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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Columbia to Ontario with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Columbia to Ontario

Cheapest flights from Columbia to OntarioExplore 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 December 15, 2025.

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 December 15, 2025.

Find flight deals from Columbia to Ontario

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

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 December.

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.

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?

Reviews of airlines servicing Ontario

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.

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?

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

How can I find direct flights from Columbia to Ontario?

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

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

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.

Top airline flying from Columbia to Ontario

100% Free

Book with Flexibility

Travel Smart

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 December 15, 2025.