How many flights depart from Colorado to Region of Ontario on average per week?

As of June 2026, 102 flights take off from Colorado and land in Region of Ontario each week. The most common flight departure day for this route is Wed, with 17% of weekly flights taking off on this day.

How long is the flight from Colorado to Region of Ontario?

Average flight duration from Colorado to Region of Ontario depends on which airport you fly into and out of. Flying from Denver to Toronto Pearson Intl Airport is 3h 10m on average, while flying from Colorado Springs to Toronto Pearson Intl Airport is 5h 19m on average. Toronto Pearson Intl Airport is the most popular airport in Region of Ontario.

What airlines fly to Region of Ontario?

Air Canada, United Airlines and WestJet are the top three most popular airlines that fly to Region of Ontario from Colorado according to our data. Air Canada is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Region of Ontario. Keep in mind that there are 3 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

How many flights depart from Colorado to Region of Ontario on average per day?

14 flights are operational daily from Colorado to Region of Ontario as of June 2026. The most popular departure time for this route is 11:00AM, with 59% of flights per day taking off at noon.

What is the cheapest airline that flies from Colorado to Ontario?

WestJet, United Airlines, and American Airlines are the most popular carriers operating from Colorado to Ontario

When did momondo last update prices for flights from Colorado to Ontario?

Prices for flights from Colorado to Ontario are updated daily.

How many operators does momondo search for flights from Colorado to Ontario?

As of June 2026, there are 3 operators available to choose from for flights from Colorado to Ontario.

How old do you have to be to fly from Colorado to Ontario?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to Ontario.

What documentation or ID do you need to fly to Ontario?

The travel and health documents you'll need for your trip to Ontario may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$127 Cheap Flights from Colorado to Ontario in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Colorado to Ontario

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:15 pm - 11:45 pm

DEN

YUL

9h 30m

1 stop

8:00 pm - 11:20 am

YUL

DEN

17h 20m

1 stop

$347WestJet

Sat, Aug 29 - Mon, Aug 31

12:15 pm - 11:45 pm

DEN

YUL

9h 30m

1 stop

7:15 am - 11:20 am

YUL

DEN

30h 05m

1 stop

$360WestJet

Tue, Aug 11 - Mon, Aug 17

12:15 pm - 11:45 pm

DEN

YUL

9h 30m

1 stop

10:35 am - 12:29 am

YUL

DEN

15h 54m

2 stops

$379Multiple Airlines

Fri, Sep 11 - Fri, Sep 18

12:15 pm - 11:45 pm

DEN

YUL

9h 30m

1 stop

10:35 am - 4:45 pm

YUL

DEN

32h 10m

2 stops

$396Multiple Airlines

Wed, Sep 2 - Fri, Sep 4

7:40 am - 10:36 pm

COS

YYZ

12h 56m

1 stop

7:00 am - 10:33 am

YYZ

COS

5h 33m

1 stop

$534United Airlines

Tue, Aug 25 - Wed, Aug 26

6:00 am - 5:19 pm

COS

YYZ

9h 19m

1 stop

10:00 am - 9:07 pm

YYZ

COS

13h 07m

2 stops

$544Delta

Mon, Jul 6 - Thu, Jul 9

5:44 am - 3:46 pm

COS

YYZ

8h 02m

1 stop

7:00 am - 11:09 am

YYZ

COS

6h 09m

1 stop

$575United Airlines

Wed, Jul 29 - Wed, Aug 5

6:00 am - 5:19 pm

COS

YYZ

9h 19m

1 stop

7:55 am - 9:38 pm

YYZ

COS

15h 43m

2 stops

$577Delta

Thu, Aug 6 - Tue, Aug 11

3:51 pm - 2:44 pm

COS

YUL

20h 53m

1 stop

10:31 am - 10:53 pm

YUL

COS

14h 22m

2 stops

$590American Airlines

Thu, Aug 20 - Tue, Aug 25

5:13 pm - 11:43 am

COS

YUL

16h 30m

2 stops

10:31 am - 10:53 pm

YUL

COS

14h 22m

2 stops

$595American Airlines

Thu, Aug 20 - Tue, Aug 25

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Air Canada flights from Colorado to Region of Ontario

Our best Air Canada deals on Colorado to Region of Ontario flight tickets

Air Canada

Jul 9

DEN6:05 pmDenver Intl

3h 12m

YYZ11:17 pmToronto Pearson Intl

Jul 20

YYZ8:55 amToronto Pearson Intl

3h 40m

DEN10:35 amDenver Intl

$539

Air Canada

Jul 9

DEN11:25 amDenver Intl

6h 30m

1 stop

YYZ7:55 pmToronto Pearson Intl

Jul 20

YYZ8:55 amToronto Pearson Intl

3h 40m

DEN10:35 amDenver Intl

$548

Air Canada

Jul 8

DEN11:30 amDenver Intl

3h 10m

YYZ4:40 pmToronto Pearson Intl

Jul 12

YYZ8:55 amToronto Pearson Intl

3h 40m

DEN10:35 amDenver Intl

$550

United Airlines flights from Colorado to Region of Ontario

Our best United Airlines deals on Colorado to Region of Ontario flight tickets

United Airlines

Aug 25

COS7:40 amColorado Springs

12h 56m

1 stop

YYZ10:36 pmToronto Pearson Intl

Aug 26

YYZ7:00 amToronto Pearson Intl

5h 33m

1 stop

COS10:33 amColorado Springs

$534

United Airlines

Jul 29

COS5:44 amColorado Springs

8h 02m

1 stop

YYZ3:46 pmToronto Pearson Intl

Aug 5

YYZ7:00 amToronto Pearson Intl

6h 09m

1 stop

COS11:09 amColorado Springs

$575

United Airlines

Jul 23

COS1:30 pmColorado Springs

6h 02m

1 stop

YYZ9:32 pmToronto Pearson Intl

Jul 26

YYZ7:00 amToronto Pearson Intl

6h 09m

1 stop

COS11:09 amColorado Springs

$614

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

Sat 8/29

12:15 pm-11:45 pm

1 stop9h 30m

Montreal Pierre Elliott Trudeau Intl

Mon 8/31

8:00 pm-11:20 am

1 stop17h 20m

$347

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

Tue 8/11

12:15 pm-11:45 pm

1 stop9h 30m

Montreal Pierre Elliott Trudeau Intl

Mon 8/17

7:15 am-11:20 am

1 stop30h 05m

$360

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

Fri 9/11

12:15 pm-11:45 pm

1 stop9h 30m

Montreal Pierre Elliott Trudeau Intl

Fri 9/18

10:35 am-12:29 am

2 stops15h 54m

$379

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

Wed 9/2

12:15 pm-11:45 pm

1 stop9h 30m

Montreal Pierre Elliott Trudeau Intl

Fri 9/4

10:35 am-4:45 pm

2 stops32h 10m

$396

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Tue 8/25

7:40 am-10:36 pm

1 stop12h 56m

Toronto Pearson Intl

Wed 8/26

7:00 am-10:33 am

1 stop5h 33m

$534

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Mon 7/6

6:00 am-5:19 pm

1 stop9h 19m

Toronto Pearson Intl

Thu 7/9

10:00 am-9:07 pm

2 stops13h 07m

$544

Quickest round-trip

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Wed 7/29

5:44 am-3:46 pm

1 stop8h 02m

Toronto Pearson Intl

Wed 8/5

7:00 am-11:09 am

1 stop6h 09m

$575

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Thu 8/6

6:00 am-5:19 pm

1 stop9h 19m

Toronto Pearson Intl

Tue 8/11

7:55 am-9:38 pm

2 stops15h 43m

$577

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Thu 8/20

3:51 pm-2:44 pm

1 stop20h 53m

Montreal Pierre Elliott Trudeau Intl

Tue 8/25

10:31 am-10:53 pm

2 stops14h 22m

$590

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Thu 8/20

5:13 pm-11:43 am

2 stops16h 30m

Montreal Pierre Elliott Trudeau Intl

Tue 8/25

10:31 am-10:53 pm

2 stops14h 22m

$595

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Colorado to Region of Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Region of Ontario?

The month of January is, on average, the cheapest month to fly to Region of Ontario from Colorado, with most prices found around $129. If you aren’t able to travel during the month of January, then book flights to Region of Ontario from Colorado during March instead. Flights to Region of Ontario in March, while not as cheap as those in January, still average around $159.

What is the cheapest day to depart on your flight to Region of Ontario?

According to our data, Thursday is the cheapest day to fly to Region of Ontario from Colorado. The lowest ticket price found for a Thursday departure recently was $680. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Colorado to Region of Ontario on a Sunday will generally be more expensive and average around $814. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Region of Ontario?

According to our data, the cheapest time of day to fly to Region of Ontario is at noon. momondo users have found flights departing from Colorado to Region of Ontario at noon for as low as $702. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $790.

What is the cheapest Colorado to Ontario flight route?

Fly from Denver Intl to Toronto Pearson Intl for the best Colorado - Ontario flight prices

How far in advance should I book a flight from Colorado to Ontario?

You are more likely to see cheaper flights to Region of Ontario from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around $576 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Region of Ontario from Colorado for as low as $455 on momondo.

What cabin class options are available on Colorado to Region of Ontario flights?

There are 4 cabin classes available to choose from on Colorado to Region of Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Colorado to Region of Ontario flights?

You could potentially save up to 3% on your flight if you consider stops on a Colorado to Region of Ontario flight.

Cheap Colorado to Region of Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Region of Ontario

Best Price Found	$295
Fastest flight time	3h 10m
Direct flights	Every day
Airports in Region of Ontario	125 airports

The best one-way flight to Region of Ontario from Colorado in the past 72 hours is $295. The best round-trip flight deal from Colorado to Region of Ontario found on momondo in the last 72 hours is $612.

The fastest flight from Colorado to Region of Ontario takes 3h 10m

Direct flights go from Colorado to Region of Ontario every day.

There are 125 airports in Region of Ontario. From Colorado there are direct flights to Toronto Pearson Intl (YYZ).

Search flight deals

Frequently asked questions about flying from Colorado to Ontario

When did momondo last update prices for flights from Colorado to Ontario?
Prices for flights from Colorado to Ontario are updated daily.
How many operators does momondo search for flights from Colorado to Ontario?
As of June 2026, there are 3 operators available to choose from for flights from Colorado to Ontario.
How old do you have to be to fly from Colorado to Ontario?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Colorado to Ontario.
What documentation or ID do you need to fly to Ontario?
The travel and health documents you'll need for your trip to Ontario may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Colorado to Region of Ontario?
Based on momondo bookings for flights between Colorado and Region of Ontario, the leading plane model is Airbus A319, making up 30.79% of the total bookings. Other popular models include Airbus A220-300 with 27.32%, Airbus A320-100/200 with 9.57%, and Airbus A220 with 8.60%.

Best airlines flying from Colorado to Region of Ontario

Compare and see reviews for airlines that fly from Colorado to Region of Ontario with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom $195	Free Cancellation	Rating 7.1 11,257 reviews	Search Air Canada flights
WestJet	PriceFrom $223	Free Cancellation	Rating 7.2 3,384 reviews	Search WestJet flights
United Airlines	PriceFrom $224	Free Cancellation	Rating 7.4 9,889 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Colorado to Ontario?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Colorado to Ontario for you.

Can I find flights from Colorado to Ontario with flexible booking policies on momondo?

Flights from Colorado to Ontario with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Colorado to Ontario?

Once you have performed a search for Colorado to Ontario flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Colorado to Ontario right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Ontario from Colorado. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Region of Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Sun 7/26

Sun 8/2

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ontario

Popular cities

Other flights from Colorado

Other flights to Ontario

Airlines

Complete your trip

Feeling lucky

Popular cities in Ontario

Flights to Torontofrom $188

Flights to Vancouverfrom $125

Flights to Montrealfrom $220

Flights to Calgaryfrom $214

Flights to Ottawafrom $225

Flights to Halifaxfrom $249

Flights to Winnipegfrom $334

Flights to Québec Cityfrom $316

Flights to Saskatoonfrom $331

Flights to Kelownafrom $317

Flights to St. John'sfrom $306

Flights to Reginafrom $382

Cheap flights from Colorado to Ontario from $127

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Ontario departing on 7/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Colorado to Ontario

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Air Canada flights from Colorado to Region of Ontario

Our best Air Canada deals on Colorado to Region of Ontario flight tickets

United Airlines flights from Colorado to Region of Ontario

Our best United Airlines deals on Colorado to Region of Ontario flight tickets

momondo Fare Finder

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

See travel insights to Ontario from

How to get the cheapest flight ticket from Colorado to Region of Ontario

What is the cheapest month to fly to Region of Ontario?

What is the cheapest day to depart on your flight to Region of Ontario?

What is the cheapest time of day to depart on your flight to Region of Ontario?

What is the cheapest Colorado to Ontario flight route?

How far in advance should I book a flight from Colorado to Ontario?

What cabin class options are available on Colorado to Region of Ontario flights?

Can stopping save me money on Colorado to Region of Ontario flights?

What is the cheapest airline that flies from Colorado to Ontario?

What airlines fly to Region of Ontario?

How many flights depart from Colorado to Region of Ontario on average per day?

How many flights depart from Colorado to Region of Ontario on average per week?

How long is the flight from Colorado to Region of Ontario?

Cheap Colorado to Region of Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Colorado to Region of Ontario

Best Price Found

Fastest flight time

Direct flights

Airports in Region of Ontario

Frequently asked questions about flying from Colorado to Ontario

Best airlines flying from Colorado to Region of Ontario

Compare and see reviews for airlines that fly from Colorado to Region of Ontario with momondo

Why use momondo?

An easier way to manage your Region of Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Ontario

Popular cities in Ontario

Popular flights according to clicks in the last 7 days on momondo

Colorado flight routes

According to popular flight searches on momondo this year

Region of Ontario flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Ontario

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Complete your trip to Ontario

Explore popular destinations other users love

According to popular flight searches on momondo this year