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

8 flights are operational daily from Colorado to Region of Ontario as of November 2025. The most popular departure time for this route is 1:00PM, with 66% of flights per day taking off in the afternoon.

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 63% 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.

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

As of November 2025, 62 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 16% 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 09m on average, while flying from Colorado Springs to Toronto Pearson Intl Airport is 8h 16m on average. Toronto Pearson Intl Airport is the most popular airport in Region of Ontario.

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

American Airlines and Alaska 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 November 2025, there are 5 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.

$129 Cheap Flights from Colorado to Ontario in 2025/26

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11:59 pm - 12:30 amDEN-YUL

22h 31m1 stop

6:45 am - 10:55 pmYUL-DEN

18h 10m2 stops

$291Multiple Airlines

Find Deal

sáb, dez 13 - seg, jan 12

12:59 am - 11:55 pmDEN-YYZ

20h 56m2 stops

7:15 am - 8:13 pmYYZ-DEN

14h 58m1 stop

$311Multiple Airlines

Find Deal

ter, dez 2 - qua, dez 10

11:15 am - 7:55 pmDEN-YTZ

6h 40m1 stop

12:30 pm - 7:55 pmYTZ-DEN

9h 25m1 stop

$430Air Canada

Find Deal

sex, fev 20 - qua, fev 25

12:15 pm - 12:42 amDEN-YUL

10h 27m1 stop

5:30 pm - 11:25 amYUL-DEN

19h 55m1 stop

$488WestJet

Find Deal

sex, mai 1 - dom, mai 10

11:15 am - 9:35 pmDEN-YTZ

8h 20m1 stop

12:30 pm - 7:55 pmYTZ-DEN

9h 25m1 stop

$504Air Canada

Find Deal

qui, dez 11 - sáb, dez 13

12:50 pm - 9:21 pmCOS-YYZ

6h 31m1 stop

3:30 pm - 9:57 pmYYZ-COS

8h 27m1 stop

$504United Airlines

Find Deal

ter, dez 2 - sáb, dez 6

1:42 pm - 9:58 pmCOS-YYZ

6h 16m1 stop

6:05 am - 12:36 pmYYZ-COS

8h 31m2 stops

$513Delta

Find Deal

ter, dez 2 - sáb, dez 6

8:10 am - 11:27 pmCOS-YYZ

13h 17m2 stops

6:05 am - 5:19 pmYYZ-COS

13h 14m2 stops

$519Delta

Find Deal

sáb, dez 6 - qua, dez 10

9:29 am - 7:45 pmCOS-YYZ

8h 16m1 stop

4:10 pm - 9:59 pmYYZ-COS

7h 49m1 stop

$536United Airlines

Find Deal

qui, nov 27 - seg, dez 1

4:15 pm - 5:28 amDEN-YKF

35h 13m2 stops

6:20 am - 6:58 pmYKF-DEN

14h 38m2 stops

$828WestJet

Find Deal

ter, dez 2 - sáb, dez 6

American Airlines flights from Colorado to Region of Ontario

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

American Airlines

Dec 3

DEN7:26 amDenver Intl

12h 03m

1 stop

YYZ9:29 pmToronto Pearson Intl

Dec 10

YYZ1:10 pmToronto Pearson Intl

11h 10m

1 stop

DEN10:20 pmDenver Intl

$312

Find similar

American Airlines

Feb 3

DEN12:28 pmDenver Intl

24h 40m

1 stop

YUL3:08 pmMontreal Pierre Elliott Trudeau Intl

Feb 9

YUL3:52 pmMontreal Pierre Elliott Trudeau Intl

20h 57m

1 stop

DEN10:49 amDenver Intl

$314

Find similar

American Airlines

Feb 3

DEN3:14 pmDenver Intl

21h 54m

1 stop

YUL3:08 pmMontreal Pierre Elliott Trudeau Intl

Feb 9

YUL3:52 pmMontreal Pierre Elliott Trudeau Intl

20h 57m

1 stop

DEN10:49 amDenver Intl

$315

Find similar

United Airlines flights from Colorado to Region of Ontario

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

United Airlines

Dec 2

COS12:50 pmColorado Springs

6h 31m

1 stop

YYZ9:21 pmToronto Pearson Intl

Dec 6

YYZ3:30 pmToronto Pearson Intl

8h 27m

1 stop

COS9:57 pmColorado Springs

$504

Find similar

United Airlines

Nov 27

COS9:29 amColorado Springs

8h 16m

1 stop

YYZ7:45 pmToronto Pearson Intl

Dec 1

YYZ4:10 pmToronto Pearson Intl

7h 49m

1 stop

COS9:59 pmColorado Springs

$536

Find similar

United Airlines

Nov 27

COS8:30 amColorado Springs

8h 27m

2 stops

YYZ6:57 pmToronto Pearson Intl

Dec 1

YYZ4:10 pmToronto Pearson Intl

7h 49m

1 stop

COS9:59 pmColorado Springs

$546

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

sáb 12/13

11:59 pm-12:30 am

1 stop22h 31m

Montreal Pierre Elliott Trudeau Intl

seg 1/12

6:45 am-10:55 pm

2 stops18h 10m

$291

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

ter 12/2

12:59 am-11:55 pm

2 stops20h 56m

Toronto Pearson Intl

qua 12/10

7:15 am-8:13 pm

1 stop14h 58m

$311

DenverToronto

DEN - YTZ

DENYTZ

Denver Intl

sex 2/20

11:15 am-7:55 pm

1 stop6h 40m

Toronto Island

qua 2/25

12:30 pm-7:55 pm

1 stop9h 25m

$430

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

sex 5/1

12:15 pm-12:42 am

1 stop10h 27m

Montreal Pierre Elliott Trudeau Intl

dom 5/10

5:30 pm-11:25 am

1 stop19h 55m

$488

DenverToronto

DEN - YTZ

DENYTZ

Denver Intl

qui 12/11

11:15 am-9:35 pm

1 stop8h 20m

Toronto Island

sáb 12/13

12:30 pm-7:55 pm

1 stop9h 25m

$504

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

ter 12/2

12:50 pm-9:21 pm

1 stop6h 31m

Toronto Pearson Intl

sáb 12/6

3:30 pm-9:57 pm

1 stop8h 27m

$504

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

ter 12/2

1:42 pm-9:58 pm

1 stop6h 16m

Toronto Pearson Intl

sáb 12/6

6:05 am-12:36 pm

2 stops8h 31m

$513

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

sáb 12/6

8:10 am-11:27 pm

2 stops13h 17m

Toronto Pearson Intl

qua 12/10

6:05 am-5:19 pm

2 stops13h 14m

$519

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

qui 11/27

9:29 am-7:45 pm

1 stop8h 16m

Toronto Pearson Intl

seg 12/1

4:10 pm-9:59 pm

1 stop7h 49m

$536

DenverToronto

DEN - YKF

DENYKF

Denver Intl

ter 12/2

4:15 pm-5:28 am

2 stops35h 13m

Toronto Region of Waterloo Intl

sáb 12/6

6:20 am-6:58 pm

2 stops14h 38m

$828

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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

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Other information

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

The month of March is, on average, the cheapest month to fly to Region of Ontario from Colorado, with most prices found around $253. If you aren’t able to travel during the month of March, then book flights to Region of Ontario from Colorado during January instead. Flights to Region of Ontario in January, while not as cheap as those in March, still average around $317.

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 $665. 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 $811. 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 in the evening. momondo users have found flights departing from Colorado to Region of Ontario in the evening for as low as $588. 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 $735.

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 $502 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 $326 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 7% 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	$263
Fastest flight time	3h 08m
Direct flights	Every day
Airports in Region of Ontario	2 airports

The best one-way flight to Region of Ontario from Colorado in the past 72 hours is $263. The best round-trip flight deal from Colorado to Region of Ontario found on momondo in the last 72 hours is $554.

The fastest flight from Colorado to Region of Ontario takes 3h 08m

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

There are 2 airports near Region of Ontario: 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 November 2025, there are 5 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 A220-300, making up 34.10% of the total bookings. Other popular models include Airbus A319 with 24.00%, Airbus A320-100/200 with 20.46%, and Airbus A330-200 with 6.82%.

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
WestJet	PriceFrom $143	Free Cancellation	Rating 7.2 3,155 reviews	Search WestJet flights
Delta	PriceFrom $144	Free Cancellation	Rating 7.9 8,001 reviews	Search Delta flights
United Airlines	PriceFrom $180	Free Cancellation	Rating 7.4 9,007 reviews	Search United Airlines flights
Air Canada	PriceFrom $221	Free Cancellation	Rating 7.1 10,416 reviews	Search Air Canada 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.

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Find better results for your trip to Ontario

Popular cities in Ontario

Flights to Torontofrom $103

Flights to Vancouverfrom $77

Flights to Montrealfrom $156

Flights to Calgaryfrom $168

Flights to Ottawafrom $184

Flights to Halifaxfrom $207

Flights to Winnipegfrom $151

Flights to Québec Cityfrom $200

Flights to Saskatoonfrom $125

Flights to Kelownafrom $140

Flights to St. John'sfrom $305

Flights to Reginafrom $223

Cheap flights from Colorado to Ontario from $129

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 12/5. 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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American Airlines flights from Colorado to Region of Ontario

Our best American Airlines 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

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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

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?

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?

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 7% on your flight if you consider stops on a Colorado to Region of Ontario flight.

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

American Airlines and Alaska Airlines are the most popular carriers operating 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?

8 flights are operational daily from Colorado to Region of Ontario as of November 2025. The most popular departure time for this route is 1:00PM, with 66% of flights per day taking off in the afternoon.

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

As of November 2025, 62 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 16% of weekly flights taking off on this day.

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

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

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

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

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

What is the most popular plane model from Colorado to 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?

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

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

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

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

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