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

As of September 2025, there are 13 flights per day flying from Region of Ontario to Colorado. The most common time of day flights depart is 6:00PM, with 48% of flights taking off at noon.

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

92 flights are operational weekly from Region of Ontario to Colorado as of September 2025. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.

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

Flight times from Region of Ontario to Colorado vary, but if you’re flying out of Ottawa and flying into Denver (one of the most popular routes), then the duration is 6h 45m on average. Another popular route from Region of Ontario to Colorado is flying from Toronto to Denver, which will take roughly 9h 57m. Keep in mind that layovers or delays could extend your travel time.

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

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

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

Prices for flights from Ontario to Colorado were last updated today.

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

The number of operators available for flights from Ontario to Colorado is 2 as of September 2025.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to Colorado.

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

The required travel and health documents for your Colorado trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Colorado. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$137 Cheap Flights from Ontario to Colorado in 2025/26

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Find the cheapest flights from Ontario to Colorado

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

5:50 pm - 11:15 pmYOW-DEN

7h 25m1 stop

11:59 pm - 2:13 pmDEN-YOW

12h 14m1 stop

$251United Airlines

Find Deal

Fri, Oct 3 - Tue, Oct 21

5:25 pm - 11:30 pmYOW-DEN

8h 05m1 stop

8:28 pm - 2:04 pmDEN-YOW

15h 36m1 stop

$262United Airlines

Find Deal

Thu, Oct 2 - Wed, Oct 8

5:30 pm - 11:24 amYUL-DEN

19h 54m1 stop

8:00 am - 12:41 amDEN-YUL

14h 41m2 stops

$283Multiple Airlines

Find Deal

Sat, Sep 27 - Sat, Oct 11

5:30 pm - 11:24 amYUL-DEN

19h 54m1 stop

8:00 am - 12:41 amDEN-YUL

14h 41m2 stops

$285Multiple Airlines

Find Deal

Sun, Oct 12 - Wed, Oct 22

7:00 am - 11:24 amYUL-DEN

30h 24m1 stop

12:15 pm - 12:27 amDEN-YUL

34h 12m2 stops

$291WestJet

Find Deal

Sat, Sep 27 - Mon, Sep 29

6:45 am - 11:24 amYUL-DEN

30h 39m2 stops

12:15 pm - 12:27 amDEN-YUL

34h 12m2 stops

$303WestJet

Find Deal

Sat, Sep 27 - Mon, Sep 29

5:25 pm - 7:55 pmYUL-DEN

4h 30mnonstop

11:15 am - 4:58 pmDEN-YUL

3h 43mnonstop

$308Air Canada

Find Deal

Thu, Oct 30 - Thu, Nov 6

7:30 am - 5:44 pmYUL-DEN

12h 14m1 stop

11:15 am - 4:58 pmDEN-YUL

3h 43mnonstop

$311Air Canada

Find Deal

Thu, Oct 30 - Thu, Nov 6

6:49 am - 10:08 pmYYZ-COS

17h 19m1 stop

5:16 pm - 12:30 pmCOS-YYZ

17h 14m1 stop

$327American Airlines

Find Deal

Sat, Sep 27 - Fri, Oct 3

4:15 pm - 11:25 pmYYZ-DEN

9h 10m1 stop

7:16 am - 2:31 pmDEN-YYZ

5h 15m1 stop

$327American Airlines

Find Deal

Thu, Oct 2 - Sat, Oct 4

Delta flights from Region of Ontario to Colorado

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

Delta

Oct 11

YYZ1:20 pmToronto Pearson Intl

8h 55m

1 stop

DEN8:15 pmDenver Intl

Oct 13

DEN12:50 amDenver Intl

7h 52m

1 stop

YYZ10:42 amToronto Pearson Intl

$329

Find similar

Delta

Sep 30

YYZ11:36 amToronto Pearson Intl

11h 03m

1 stop

COS8:39 pmColorado Springs

Nov 6

COS1:16 pmColorado Springs

8h 42m

1 stop

YYZ11:58 pmToronto Pearson Intl

$339

Find similar

Delta

Oct 21

YUL7:00 amMontreal Pierre Elliott Trudeau Intl

8h 52m

1 stop

DEN1:52 pmDenver Intl

Oct 27

DEN6:00 amDenver Intl

9h 34m

1 stop

YUL5:34 pmMontreal Pierre Elliott Trudeau Intl

$342

Find similar

United Airlines flights from Region of Ontario to Colorado

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

United Airlines

Oct 3

YOW5:50 pmOttawa

7h 25m

1 stop

DEN11:15 pmDenver Intl

Oct 21

DEN11:59 pmDenver Intl

12h 14m

1 stop

YOW2:13 pmOttawa

$251

Find similar

United Airlines

Oct 2

YOW5:25 pmOttawa

8h 05m

1 stop

DEN11:30 pmDenver Intl

Oct 8

DEN8:28 pmDenver Intl

15h 36m

1 stop

YOW2:04 pmOttawa

$262

Find similar

United Airlines

Feb 19

YOW12:05 pmOttawa

6h 35m

1 stop

DEN4:40 pmDenver Intl

Feb 24

DEN4:05 pmDenver Intl

16h 21m

1 stop

YOW10:26 amOttawa

$263

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Fri 10/3

5:50 pm-11:15 pm

1 stop7h 25m

Denver Intl

Tue 10/21

11:59 pm-2:13 pm

1 stop12h 14m

$251

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Thu 10/2

5:25 pm-11:30 pm

1 stop8h 05m

Denver Intl

Wed 10/8

8:28 pm-2:04 pm

1 stop15h 36m

$262

MontrealDenver

YUL - DEN

YULDEN

Montreal Pierre Elliott Trudeau Intl

Sat 9/27

5:30 pm-11:24 am

1 stop19h 54m

Denver Intl

Sat 10/11

8:00 am-12:41 am

2 stops14h 41m

$283

MontrealDenver

YUL - DEN

YULDEN

Montreal Pierre Elliott Trudeau Intl

Sun 10/12

5:30 pm-11:24 am

1 stop19h 54m

Denver Intl

Wed 10/22

8:00 am-12:41 am

2 stops14h 41m

$285

MontrealDenver

YUL - DEN

YULDEN

Montreal Pierre Elliott Trudeau Intl

Sat 9/27

7:00 am-11:24 am

1 stop30h 24m

Denver Intl

Mon 9/29

12:15 pm-12:27 am

2 stops34h 12m

$291

MontrealDenver

YUL - DEN

YULDEN

Montreal Pierre Elliott Trudeau Intl

Sat 9/27

6:45 am-11:24 am

2 stops30h 39m

Denver Intl

Mon 9/29

12:15 pm-12:27 am

2 stops34h 12m

$303

MontrealDenver

YUL - DEN

YULDEN

Montreal Pierre Elliott Trudeau Intl

Thu 10/30

5:25 pm-7:55 pm

Nonstop4h 30m

Denver Intl

Thu 11/6

11:15 am-4:58 pm

Nonstop3h 43m

$308

MontrealDenver

YUL - DEN

YULDEN

Montreal Pierre Elliott Trudeau Intl

Thu 10/30

7:30 am-5:44 pm

1 stop12h 14m

Denver Intl

Thu 11/6

11:15 am-4:58 pm

Nonstop3h 43m

$311

TorontoColorado Springs

YYZ - COS

YYZCOS

Toronto Pearson Intl

Sat 9/27

6:49 am-10:08 pm

1 stop17h 19m

Colorado Springs

Fri 10/3

5:16 pm-12:30 pm

1 stop17h 14m

$327

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Thu 10/2

4:15 pm-11:25 pm

1 stop9h 10m

Denver Intl

Sat 10/4

7:16 am-2:31 pm

1 stop5h 15m

$327

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

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 Colorado?

The month of November is, on average, the cheapest month to fly to Colorado from Region of Ontario, with most prices found around $421. The month of October is another great option to travel to Colorado, with average flight prices from Region of Ontario averaging around $423.

What is the cheapest day to depart on your flight to Colorado?

The cheapest day to depart from Region of Ontario to Colorado is on a Friday when prices can be found for as low as $429. On the other hand, Sunday is the most expensive day to depart from Region of Ontario because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $597.

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

The cheapest time of day to fly to Colorado is at noon when flights can be purchased for as low as $420. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $510 per ticket.

What is the cheapest Ontario to Colorado flight route?

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

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

You are more likely to see cheaper flights to Colorado from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Colorado for around $460 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Colorado from Region of Ontario for as low as $402 on momondo.

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

There are 4 cabin classes available to choose from on Ontario to Colorado 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 Region of Ontario to Colorado flights?

You could potentially save up to 9% on your flight if you consider stops on a Region of Ontario to Colorado flight.

Cheap Region of Ontario to Colorado flight deals and tips

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

Best Price Found	$231
Fastest flight time	3h 34m
Direct flights	Every day
Airports in Colorado	1 airport

The best one-way flight to Colorado from Region of Ontario in the past 72 hours is $231. The best round-trip flight deal from Region of Ontario to Colorado found on momondo in the last 72 hours is $364.

The fastest flight from Region of Ontario to Colorado takes 3h 34m

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

There is 1 airport near Colorado: Denver Intl (DEN)

Search flight deals

When did momondo last update prices for flights from Ontario to Colorado?
Prices for flights from Ontario to Colorado were last updated today.
How many operators does momondo search for flights from Ontario to Colorado?
The number of operators available for flights from Ontario to Colorado is 2 as of September 2025.
How old do you have to be to fly from Ontario to Colorado?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario to Colorado.
What documentation or ID do you need to fly to Colorado?
The required travel and health documents for your Colorado trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Colorado. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Region of Ontario to Colorado?
Based on momondo bookings for flights between Region of Ontario and Colorado, the leading plane model is Airbus A220-300, making up 29.58% of the total bookings. Other popular models include Airbus A319 with 18.01%, Embraer 195 E2 with 15.96%, and Airbus A350-900 with 7.28%.

Best airlines flying from Region of Ontario to Colorado

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

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom $254	Free Cancellation	Rating 7.1 10,000 reviews		Search Air Canada flights
United Airlines	PriceFrom $384	Free Cancellation	Rating 7.4 8,924 reviews		Search United Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Colorado. momondo saves you time and could save you money on your trip.

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

Flights from Ontario to Colorado 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 Ontario to Colorado?

Once all potential Ontario to Colorado flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Ontario to Colorado flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Popular cities in Colorado

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Cheap flights from Ontario to Colorado 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 Ontario to Colorado departing on 10/6. 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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Big names and deals

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Find the cheapest flights from Ontario to Colorado

Cheap round-trip flights

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Delta flights from Region of Ontario to Colorado

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

United Airlines flights from Region of Ontario to Colorado

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

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

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 Colorado?

The month of November is, on average, the cheapest month to fly to Colorado from Region of Ontario, with most prices found around $421. The month of October is another great option to travel to Colorado, with average flight prices from Region of Ontario averaging around $423.

What is the cheapest day to depart on your flight to Colorado?

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

The cheapest time of day to fly to Colorado is at noon when flights can be purchased for as low as $420. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $510 per ticket.

What is the cheapest Ontario to Colorado flight route?

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

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

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

There are 4 cabin classes available to choose from on Ontario to Colorado 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 Region of Ontario to Colorado flights?

You could potentially save up to 9% on your flight if you consider stops on a Region of Ontario to Colorado flight.

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

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

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

As of September 2025, there are 13 flights per day flying from Region of Ontario to Colorado. The most common time of day flights depart is 6:00PM, with 48% of flights taking off at noon.

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

92 flights are operational weekly from Region of Ontario to Colorado as of September 2025. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.

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

Cheap Region of Ontario to Colorado flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Colorado

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

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

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

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

What is the most popular plane model from Region of Ontario to Colorado?

Best airlines flying from Region of Ontario to Colorado

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

Why use momondo?

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

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

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

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

An easier way to manage your Colorado 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 Colorado

Popular cities in Colorado

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