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

28 flights are operational weekly from Region of Ontario to Colorado as of October 2025. The most popular departure day for this route is Wed, with 25% of flights per week taking off on this day.

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

American Airlines, Air Canada, and Alaska Airlines 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 October 2025, there are 4 flights per day flying from Region of Ontario to Colorado. The most common time of day flights depart is 4:00PM, with 57% of flights taking off in the afternoon.

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 7h 23m on average. Another popular route from Region of Ontario to Colorado is flying from Toronto to Denver, which will take roughly 9h 14m. Keep in mind that layovers or delays could extend your travel time.

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 October 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.

$146 Cheap Flights from Ontario to Colorado in 2025/26

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Cheap round-trip flights

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5:10 pm - 7:09 pmYUL-DEN

27h 59m1 stop

11:59 pm - 7:44 pmDEN-YUL

17h 45m2 stops

$344Multiple Airlines

Find Deal

Tue, Dec 9 - Mon, Dec 15

7:55 pm - 3:58 amYYZ-DEN

10h 03m1 stop

4:25 pm - 7:55 amDEN-YYZ

13h 30m1 stop

$346Multiple Airlines

Find Deal

Fri, Dec 12 - Wed, Jan 7

4:45 pm - 6:03 pmYYZ-DEN

27h 18m1 stop

8:22 pm - 3:35 pmDEN-YYZ

17h 13m1 stop

$350Alaska Airlines

Find Deal

Tue, Dec 9 - Tue, Jan 6

12:30 pm - 7:55 pmYTZ-DEN

9h 25m1 stop

11:15 am - 9:35 pmDEN-YTZ

8h 20m1 stop

$352Air Canada

Find Deal

Thu, Nov 20 - Wed, Nov 26

5:25 pm - 7:55 pmYUL-DEN

4h 30mnonstop

11:15 am - 4:58 pmDEN-YUL

3h 43mnonstop

$353Air Canada

Find Deal

Thu, Nov 20 - Wed, Nov 26

4:45 pm - 6:03 pmYYZ-DEN

27h 18m1 stop

11:49 am - 3:35 pmDEN-YYZ

25h 46m2 stops

$360Alaska Airlines

Find Deal

Tue, Dec 9 - Fri, Jan 9

7:00 pm - 8:49 amYUL-DEN

15h 49m2 stops

7:50 am - 9:17 pmDEN-YUL

11h 27m1 stop

$432United Airlines

Find Deal

Fri, Jan 23 - Tue, Jan 27

8:05 am - 8:13 pmYUL-DEN

14h 08m2 stops

11:15 am - 7:45 amDEN-YUL

18h 30m2 stops

$452United Airlines

Find Deal

Wed, Feb 4 - Thu, Feb 12

5:45 pm - 10:29 pmYOW-DEN

30h 44m2 stops

12:15 pm - 12:40 amDEN-YOW

10h 25m1 stop

$655WestJet

Find Deal

Mon, Apr 20 - Wed, Apr 29

6:20 am - 3:35 pmYKF-DEN

35h 15m2 stops

6:30 am - 5:29 amDEN-YKF

20h 59m2 stops

$687WestJet

Find Deal

Mon, Mar 2 - Mon, Mar 9

Delta flights from Region of Ontario to Colorado

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

Delta

Dec 4

YUL9:35 amMontreal Pierre Elliott Trudeau Intl

13h 02m

1 stop

DEN8:37 pmDenver Intl

Dec 8

DEN12:04 pmDenver Intl

21h 56m

2 stops

YUL12:00 pmMontreal Pierre Elliott Trudeau Intl

$416

Find similar

Delta

Dec 4

YUL9:35 amMontreal Pierre Elliott Trudeau Intl

13h 02m

1 stop

DEN8:37 pmDenver Intl

Dec 8

DEN5:45 pmDenver Intl

13h 00m

1 stop

YUL8:45 amMontreal Pierre Elliott Trudeau Intl

$424

Find similar

Delta

Dec 9

YUL6:00 amMontreal Pierre Elliott Trudeau Intl

10h 12m

1 stop

DEN2:12 pmDenver Intl

Dec 15

DEN6:46 amDenver Intl

10h 08m

1 stop

YUL6:54 pmMontreal Pierre Elliott Trudeau Intl

$451

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

Jan 23

YUL7:00 pmMontreal Pierre Elliott Trudeau Intl

15h 49m

2 stops

DEN8:49 amDenver Intl

Jan 27

DEN7:50 amDenver Intl

11h 27m

1 stop

YUL9:17 pmMontreal Pierre Elliott Trudeau Intl

$432

Find similar

United Airlines

Feb 4

YUL8:05 amMontreal Pierre Elliott Trudeau Intl

14h 08m

2 stops

DEN8:13 pmDenver Intl

Feb 12

DEN11:15 amDenver Intl

18h 30m

2 stops

YUL7:45 amMontreal Pierre Elliott Trudeau Intl

$452

Find similar

United Airlines

Jan 16

YUL5:25 pmMontreal Pierre Elliott Trudeau Intl

4h 30m

DEN7:55 pmDenver Intl

Jan 21

DEN6:00 amDenver Intl

10h 40m

1 stop

YUL6:40 pmMontreal Pierre Elliott Trudeau Intl

$470

Find similar

Fly from

Fly to

Route

Depart

Return

Price

MontrealDenver

YUL - DEN

YULDEN

Montreal Pierre Elliott Trudeau Intl

Tue 12/9

5:10 pm-7:09 pm

1 stop27h 59m

Denver Intl

Mon 12/15

11:59 pm-7:44 pm

2 stops17h 45m

$344

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Fri 12/12

7:55 pm-3:58 am

1 stop10h 03m

Denver Intl

Wed 1/7

4:25 pm-7:55 am

1 stop13h 30m

$346

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Tue 12/9

4:45 pm-6:03 pm

1 stop27h 18m

Denver Intl

Tue 1/6

8:22 pm-3:35 pm

1 stop17h 13m

$350

TorontoDenver

YTZ - DEN

YTZDEN

Toronto Island

Thu 11/20

12:30 pm-7:55 pm

1 stop9h 25m

Denver Intl

Wed 11/26

11:15 am-9:35 pm

1 stop8h 20m

$352

MontrealDenver

YUL - DEN

YULDEN

Montreal Pierre Elliott Trudeau Intl

Thu 11/20

5:25 pm-7:55 pm

Nonstop4h 30m

Denver Intl

Wed 11/26

11:15 am-4:58 pm

Nonstop3h 43m

$353

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Tue 12/9

4:45 pm-6:03 pm

1 stop27h 18m

Denver Intl

Fri 1/9

11:49 am-3:35 pm

2 stops25h 46m

$360

MontrealDenver

YUL - DEN

YULDEN

Montreal Pierre Elliott Trudeau Intl

Fri 1/23

7:00 pm-8:49 am

2 stops15h 49m

Denver Intl

Tue 1/27

7:50 am-9:17 pm

1 stop11h 27m

$432

MontrealDenver

YUL - DEN

YULDEN

Montreal Pierre Elliott Trudeau Intl

Wed 2/4

8:05 am-8:13 pm

2 stops14h 08m

Denver Intl

Thu 2/12

11:15 am-7:45 am

2 stops18h 30m

$452

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Mon 4/20

5:45 pm-10:29 pm

2 stops30h 44m

Denver Intl

Wed 4/29

12:15 pm-12:40 am

1 stop10h 25m

$655

TorontoDenver

YKF - DEN

YKFDEN

Toronto Region of Waterloo Intl

Mon 3/2

6:20 am-3:35 pm

2 stops35h 15m

Denver Intl

Mon 3/9

6:30 am-5:29 am

2 stops20h 59m

$687

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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 $418. The month of August is another great option to travel to Colorado, with average flight prices from Region of Ontario averaging around $425.

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 $430. 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 $603.

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 $424. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $519 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 $458 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 $411 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 19% 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	$265
Fastest flight time	3h 50m
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 $265. The best round-trip flight deal from Region of Ontario to Colorado found on momondo in the last 72 hours is $424.

The fastest flight from Region of Ontario to Colorado takes 3h 50m

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 October 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 33.13% of the total bookings. Other popular models include Airbus A319 with 19.61%, Embraer 195 E2 with 16.59%, and Boeing 737 MAX 8 with 6.14%.

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
United Airlines	PriceFrom $251	Free Cancellation	Rating 7.4 8,998 reviews		Search United Airlines flights
Air Canada	PriceFrom $267	Free Cancellation	Rating 7.1 10,381 reviews		Search Air Canada 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 $146

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 1/26. 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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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 $418. The month of August is another great option to travel to Colorado, with average flight prices from Region of Ontario averaging around $425.

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 $424. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $519 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 19% 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?

American Airlines, Air Canada, and Alaska Airlines 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 October 2025, there are 4 flights per day flying from Region of Ontario to Colorado. The most common time of day flights depart is 4:00PM, with 57% of flights taking off in the afternoon.

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

28 flights are operational weekly from Region of Ontario to Colorado as of October 2025. The most popular departure day for this route is Wed, with 25% 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