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

As of March 2026, 71 flights take off from Colorado and land in Region of Ontario each week. The most common flight departure day for this route is Mon, with 15% of weekly flights taking off on this day.

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

10 flights are operational daily from Colorado to Region of Ontario as of March 2026. The most popular departure time for this route is 1:00PM, with 78% of flights per day taking off in the afternoon.

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

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

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 6h 07m 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 Delta 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 62% of people opting to fly with this airline when traveling to Region of Ontario. Keep in mind that there are 4 different airlines that fly to Region of Ontario on a routine basis, so you have a few additional options to choose from.

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 March 2026, there are 4 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.

$137 Cheap Flights from Colorado to Ontario in 2026

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Round-trip

One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 10:05 pm

COS

YOW

14h 05m

2 stops

6:25 am - 10:47 am

YOW

COS

6h 22m

1 stop

$354United Airlines

Wed, Apr 29 - Sat, May 2

6:00 am - 10:05 pm

COS

YOW

14h 05m

2 stops

10:00 am - 6:22 pm

YOW

COS

10h 22m

2 stops

$359United Airlines

Wed, Apr 29 - Sat, May 2

10:57 am - 10:58 pm

COS

YYZ

10h 01m

1 stop

12:30 pm - 10:29 pm

YYZ

COS

11h 59m

2 stops

$440Delta

Mon, Jun 15 - Fri, Jun 19

4:59 pm - 10:10 pm

DEN

YUL

27h 11m

2 stops

7:10 am - 11:31 am

YUL

DEN

6h 21m

1 stop

$443Multiple Airlines

Tue, May 12 - Tue, May 19

8:15 am - 10:59 pm

COS

YYZ

12h 44m

2 stops

10:00 am - 9:32 pm

YYZ

COS

13h 32m

2 stops

$445Delta

Thu, May 7 - Thu, May 14

3:32 pm - 12:30 am

DEN

YUL

30h 58m

1 stop

6:45 am - 9:25 am

YUL

DEN

28h 40m

2 stops

$446Multiple Airlines

Tue, Apr 21 - Tue, Apr 28

1:25 pm - 12:46 am

COS

YOW

9h 21m

2 stops

5:25 pm - 11:59 pm

YOW

COS

8h 34m

2 stops

$454Air Canada

Wed, May 6 - Wed, May 13

1:25 pm - 8:06 am

COS

YOW

16h 41m

2 stops

5:05 am - 2:24 pm

YOW

COS

11h 19m

2 stops

$481Air Canada

Sun, May 3 - Sun, May 10

12:15 pm - 5:15 pm

DEN

YHM

27h 00m

1 stop

6:10 pm - 11:20 am

YHM

DEN

19h 10m

1 stop

$743WestJet

Sat, Jun 6 - Mon, Jun 8

12:15 pm - 5:15 pm

DEN

YHM

27h 00m

1 stop

6:10 pm - 11:20 am

YHM

DEN

19h 10m

1 stop

$761WestJet

Sat, Jun 6 - Mon, Jun 8

Air Canada flights from Colorado to Region of Ontario

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

Air Canada

May 6

COS1:25 pmColorado Springs

9h 21m

2 stops

YOW12:46 amOttawa

May 13

YOW5:25 pmOttawa

8h 34m

2 stops

COS11:59 pmColorado Springs

$454

Air Canada

May 3

COS1:25 pmColorado Springs

16h 41m

2 stops

YOW8:06 amOttawa

May 10

YOW5:05 amOttawa

11h 19m

2 stops

COS2:24 pmColorado Springs

$481

Air Canada

May 8

DEN6:10 pmDenver Intl

3h 13m

YYZ11:23 pmToronto Pearson Intl

May 10

YYZ6:40 pmToronto Pearson Intl

3h 48m

DEN8:28 pmDenver Intl

$485

Delta flights from Colorado to Region of Ontario

Our best Delta deals on Colorado to Region of Ontario flight tickets

Delta

Jun 15

COS10:57 amColorado Springs

10h 01m

1 stop

YYZ10:58 pmToronto Pearson Intl

Jun 19

YYZ12:30 pmToronto Pearson Intl

11h 59m

2 stops

COS10:29 pmColorado Springs

$440

Delta

May 7

COS8:15 amColorado Springs

12h 44m

2 stops

YYZ10:59 pmToronto Pearson Intl

May 14

YYZ10:00 amToronto Pearson Intl

13h 32m

2 stops

COS9:32 pmColorado Springs

$445

Delta

Apr 7

DEN5:55 pmDenver Intl

13h 33m

1 stop

YYZ9:28 amToronto Pearson Intl

Apr 10

YYZ6:00 amToronto Pearson Intl

17h 09m

1 stop

DEN9:09 pmDenver Intl

$474

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Colorado SpringsOttawa

COS - YOW

COSYOW

Colorado Springs

Wed 4/29

6:00 am-10:05 pm

2 stops14h 05m

Ottawa

Sat 5/2

6:25 am-10:47 am

1 stop6h 22m

$354

Colorado SpringsOttawa

COS - YOW

COSYOW

Colorado Springs

Wed 4/29

6:00 am-10:05 pm

2 stops14h 05m

Ottawa

Sat 5/2

10:00 am-6:22 pm

2 stops10h 22m

$359

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Mon 6/15

10:57 am-10:58 pm

1 stop10h 01m

Toronto Pearson Intl

Fri 6/19

12:30 pm-10:29 pm

2 stops11h 59m

$440

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

Tue 5/12

4:59 pm-10:10 pm

2 stops27h 11m

Montreal Pierre Elliott Trudeau Intl

Tue 5/19

7:10 am-11:31 am

1 stop6h 21m

$443

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Thu 5/7

8:15 am-10:59 pm

2 stops12h 44m

Toronto Pearson Intl

Thu 5/14

10:00 am-9:32 pm

2 stops13h 32m

$445

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

Tue 4/21

3:32 pm-12:30 am

1 stop30h 58m

Montreal Pierre Elliott Trudeau Intl

Tue 4/28

6:45 am-9:25 am

2 stops28h 40m

$446

Quickest round-trip

Colorado SpringsOttawa

COS - YOW

COSYOW

Colorado Springs

Wed 5/6

1:25 pm-12:46 am

2 stops9h 21m

Ottawa

Wed 5/13

5:25 pm-11:59 pm

2 stops8h 34m

$454

Colorado SpringsOttawa

COS - YOW

COSYOW

Colorado Springs

Sun 5/3

1:25 pm-8:06 am

2 stops16h 41m

Ottawa

Sun 5/10

5:05 am-2:24 pm

2 stops11h 19m

$481

DenverHamilton

DEN - YHM

DENYHM

Denver Intl

Sat 6/6

12:15 pm-5:15 pm

1 stop27h 00m

Hamilton

Mon 6/8

6:10 pm-11:20 am

1 stop19h 10m

$743

DenverHamilton

DEN - YHM

DENYHM

Denver Intl

Sat 6/6

12:15 pm-5:15 pm

1 stop27h 00m

Hamilton

Mon 6/8

6:10 pm-11:20 am

1 stop19h 10m

$761

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 September is, on average, the cheapest month to fly to Region of Ontario from Colorado, with most prices found around $458. If you aren’t able to travel during the month of September, then book flights to Region of Ontario from Colorado during October instead. Flights to Region of Ontario in October, while not as cheap as those in September, still average around $490.

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 $617. 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 $805. 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 $683. 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 morning are often more expensive with an average ticket price of $712.

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 to Region of 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 $546 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 $400 on momondo.

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

There are 4 cabin classes available to choose from on Colorado to 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 28% 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	$323
Fastest flight time	3h 10m
Direct flights	Every day
Airports in Region of Ontario	123 airports

The best one-way flight to Region of Ontario from Colorado in the past 72 hours is $323. The best round-trip flight deal from Colorado to Region of Ontario found on momondo in the last 72 hours is $681.

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 123 airports in Region of Ontario. From Colorado there are direct flights to Montreal Pierre Elliott Trudeau Intl (YUL), Toronto Pearson Intl (YYZ).

Search flight deals

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 March 2026, there are 4 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 43.53% of the total bookings. Other popular models include Airbus A220-300 with 26.12%, Boeing 787 Dreamliner with 8.58%, and Boeing 777 with 4.87%.

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 $81	Free Cancellation	Rating 7.1 10,835 reviews	Search Air Canada flights
Delta	PriceFrom $144	Free Cancellation	Rating 7.9 8,318 reviews	Search Delta flights
United Airlines	PriceFrom $177	Free Cancellation	Rating 7.4 9,462 reviews	Search United Airlines flights
WestJet	PriceFrom $258	Free Cancellation	Rating 7.2 3,300 reviews	Search WestJet 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

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Popular cities in Ontario

Flights to Torontofrom $148

Flights to Vancouverfrom $132

Flights to Montrealfrom $197

Flights to Calgaryfrom $228

Flights to Ottawafrom $244

Flights to Halifaxfrom $242

Flights to Winnipegfrom $276

Flights to Québec Cityfrom $276

Flights to Kelownafrom $245

Flights to Saskatoonfrom $282

Flights to St. John'sfrom $371

Flights to Reginafrom $359

Cheap flights from Colorado to Ontario from $137

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 4/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Air Canada flights from Colorado to Region of Ontario

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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 to Region of Ontario?

What cabin class options are available on Colorado to 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

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

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According to popular flight searches on momondo this year

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