How long does it take to fly to Denver?

Flight times vary depending on what airport in Region of Ontario you fly out of and what airport in Denver you fly into. For example, flying from Toronto to Denver takes 8h 32m on average. On the other hand, flying from Ottawa to Denver takes 12h 43m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

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

The number of flights available between Region of Ontario and Denver is 8 per day as of November 2025. The most frequent departure time is 8:00AM, with 62% of daily flights leaving in the afternoon.

What is the cheapest airline that flies from Ontario to Denver Intl?

Air Canada is the most popular carrier operating from Ontario to Denver Intl

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

As of November 2025, 58 flights take off from Region of Ontario and land in Denver each week. The most common flight departure day for this route is Wed, with 17% of weekly flights taking off on this day.

When did momondo last update prices for flights from Ontario to Denver Intl Airport?

Prices for flights from Ontario to Denver Intl Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Ontario to Denver Intl Airport?

The number of operators available for flights from Ontario to Denver Intl Airport is 2 as of November 2025.

How old do you have to be to fly from Ontario to Denver Intl Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario to Denver Intl Airport.

What documentation or ID do you need to fly to Denver Intl Airport?

The travel and health documents required for your trip to Denver Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Denver Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$142 Cheap Flights from Ontario to Denver in 2025/26

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4:20 pm - 7:50 amYOW-DEN

17h 30m1 stop

11:59 pm - 5:13 pmDEN-YOW

15h 14m1 stop

$269Multiple Airlines

Find Deal

Thu, Jan 8 - Mon, Jan 12

3:52 pm - 10:49 amYUL-DEN

20h 57m1 stop

4:30 pm - 3:08 pmDEN-YUL

20h 38m1 stop

$292American Airlines

Find Deal

Mon, Jan 26 - Fri, Jan 30

4:45 pm - 12:38 pmYYZ-DEN

21h 53m1 stop

7:00 am - 3:35 pmDEN-YYZ

30h 35m1 stop

$368Alaska Airlines

Find Deal

Sun, Feb 1 - Sun, Feb 8

10:10 am - 7:55 pmYYZ-DEN

11h 45m2 stops

7:05 pm - 6:47 amDEN-YYZ

9h 42m1 stop

$370Air Canada

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Thu, Nov 27 - Wed, Dec 3

4:45 pm - 4:13 pmYYZ-DEN

25h 28m1 stop

7:00 am - 3:35 pmDEN-YYZ

30h 35m1 stop

$372Alaska Airlines

Find Deal

Sun, Feb 1 - Sun, Feb 8

1:00 pm - 7:55 pmYYZ-DEN

8h 55m1 stop

5:30 pm - 10:41 pmDEN-YYZ

3h 11mnonstop

$377Air Canada

Find Deal

Thu, Nov 27 - Sun, Nov 30

9:35 am - 8:37 pmYUL-DEN

13h 02m1 stop

5:45 pm - 8:45 amDEN-YUL

13h 00m1 stop

$403Delta

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Thu, Dec 4 - Mon, Dec 8

9:35 am - 8:37 pmYUL-DEN

13h 02m1 stop

5:45 pm - 8:45 amDEN-YUL

13h 00m1 stop

$404Delta

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Thu, Dec 4 - Mon, Dec 8

2:15 pm - 10:18 amYOW-DEN

22h 03m2 stops

5:42 pm - 5:12 pmDEN-YOW

21h 30m2 stops

$559United Airlines

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Fri, Jan 23 - Tue, Jan 27

2:15 pm - 10:18 amYOW-DEN

22h 03m2 stops

5:42 pm - 5:12 pmDEN-YOW

21h 30m2 stops

$569United Airlines

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Thu, Jan 8 - Mon, Jan 12

Alaska Airlines flights from Region of Ontario to Denver

Our best Alaska Airlines deals on Region of Ontario to Denver flight tickets

Alaska Airlines

Feb 1

YYZ4:45 pmToronto Pearson Intl

21h 53m

1 stop

DEN12:38 pmDenver Intl

Feb 8

DEN7:00 amDenver Intl

30h 35m

1 stop

YYZ3:35 pmToronto Pearson Intl

$368

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Alaska Airlines

Feb 1

YYZ4:45 pmToronto Pearson Intl

25h 28m

1 stop

DEN4:13 pmDenver Intl

Feb 8

DEN7:00 amDenver Intl

30h 35m

1 stop

YYZ3:35 pmToronto Pearson Intl

$372

Find similar

Alaska Airlines

Feb 1

YYZ4:45 pmToronto Pearson Intl

20h 08m

2 stops

DEN10:53 amDenver Intl

Feb 8

DEN7:00 amDenver Intl

30h 35m

1 stop

YYZ3:35 pmToronto Pearson Intl

$381

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Air Canada flights from Region of Ontario to Denver

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

Air Canada

Nov 27

YYZ10:10 amToronto Pearson Intl

11h 45m

2 stops

DEN7:55 pmDenver Intl

Dec 3

DEN7:05 pmDenver Intl

9h 42m

1 stop

YYZ6:47 amToronto Pearson Intl

$370

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Air Canada

Nov 27

YYZ1:00 pmToronto Pearson Intl

8h 55m

1 stop

DEN7:55 pmDenver Intl

Nov 30

DEN5:30 pmDenver Intl

3h 11m

YYZ10:41 pmToronto Pearson Intl

$377

Find similar

Air Canada

Nov 26

YYZ8:30 amToronto Pearson Intl

3h 53m

DEN10:23 amDenver Intl

Jan 28

DEN5:30 pmDenver Intl

3h 11m

YYZ10:41 pmToronto Pearson Intl

$379

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Route

Depart

Return

Price

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Thu 1/8

4:20 pm-7:50 am

1 stop17h 30m

Denver Intl

Mon 1/12

11:59 pm-5:13 pm

1 stop15h 14m

$269

MontrealDenver

YUL - DEN

YULDEN

Montreal Pierre Elliott Trudeau Intl

Mon 1/26

3:52 pm-10:49 am

1 stop20h 57m

Denver Intl

Fri 1/30

4:30 pm-3:08 pm

1 stop20h 38m

$292

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Sun 2/1

4:45 pm-12:38 pm

1 stop21h 53m

Denver Intl

Sun 2/8

7:00 am-3:35 pm

1 stop30h 35m

$368

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Thu 11/27

10:10 am-7:55 pm

2 stops11h 45m

Denver Intl

Wed 12/3

7:05 pm-6:47 am

1 stop9h 42m

$370

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Sun 2/1

4:45 pm-4:13 pm

1 stop25h 28m

Denver Intl

Sun 2/8

7:00 am-3:35 pm

1 stop30h 35m

$372

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Thu 11/27

1:00 pm-7:55 pm

1 stop8h 55m

Denver Intl

Sun 11/30

5:30 pm-10:41 pm

Nonstop3h 11m

$377

MontrealDenver

YUL - DEN

YULDEN

Montreal Pierre Elliott Trudeau Intl

Thu 12/4

9:35 am-8:37 pm

1 stop13h 02m

Denver Intl

Mon 12/8

5:45 pm-8:45 am

1 stop13h 00m

$403

MontrealDenver

YUL - DEN

YULDEN

Montreal Pierre Elliott Trudeau Intl

Thu 12/4

9:35 am-8:37 pm

1 stop13h 02m

Denver Intl

Mon 12/8

5:45 pm-8:45 am

1 stop13h 00m

$404

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Fri 1/23

2:15 pm-10:18 am

2 stops22h 03m

Denver Intl

Tue 1/27

5:42 pm-5:12 pm

2 stops21h 30m

$559

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Thu 1/8

2:15 pm-10:18 am

2 stops22h 03m

Denver Intl

Mon 1/12

5:42 pm-5:12 pm

2 stops21h 30m

$569

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

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 Denver?

The cheapest month to fly to Denver from Region of Ontario is in November. Flight prices, which tend to average around $419, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in November, then you should wait until August to fly from Region of Ontario, when ticket prices are also cheap, with an average price of $425.

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

The cheapest day to depart on your flight to Denver is on a Friday when prices can be found for as low as $432. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $608.

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

The cheapest time of day to fly to Denver is at noon when flights can be purchased for as low as $426. Flights in the morning are often more expensive with an average ticket price of $517.

What is the cheapest Ontario to Denver Intl flight route?

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

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

You are more likely to see cheaper flights to Denver from Region of Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $458 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Region of Ontario for as low as $411 on momondo.

What cabin class options are available on Ontario to Denver Intl flights?

There are 4 cabin classes available to choose from on Ontario to Denver Intl 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 Denver flights?

You could potentially save up to 39% on your flight if you consider stops on a Region of Ontario to Denver flight.

Cheap Region of Ontario to Denver flight deals and tips

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

Best Price Found	$265
Fastest flight time	3h 45m
Direct flights	Every day
Airports in Denver	1 airport

The best one-way flight to Denver from Region of Ontario in the past 72 hours is $265. The best round-trip flight deal from Region of Ontario to Denver found on momondo in the last 72 hours is $445.

The fastest flight from Region of Ontario to Denver takes 3h 45m

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

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

Search flight deals

When did momondo last update prices for flights from Ontario to Denver Intl Airport?
Prices for flights from Ontario to Denver Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Ontario to Denver Intl Airport?
The number of operators available for flights from Ontario to Denver Intl Airport is 2 as of November 2025.
How old do you have to be to fly from Ontario to Denver Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario to Denver Intl Airport.
What documentation or ID do you need to fly to Denver Intl Airport?
The travel and health documents required for your trip to Denver Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Denver Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Region of Ontario to Denver?
Based on momondo bookings for flights between Region of Ontario and Denver, the leading plane model is Airbus A220-300, making up 33.61% of the total bookings. Other popular models include Airbus A319 with 19.96%, Embraer 195 E2 with 17.68%, and Boeing 737 MAX 8 with 6.09%.

Best airlines flying from Region of Ontario to Denver

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

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $251	Free Cancellation	Rating 7.4 9,007 reviews		Search United Airlines flights
Air Canada	PriceFrom $267	Free Cancellation	Rating 7.1 10,416 reviews		Search Air Canada flights

Breckenridge

Estes Park

Black Hawk

Aurora

Fort Collins

Keystone

Cripple Creek

Manitou Springs

Longmont

Boulder

Greeley

Lakewood

Thornton

Westminster

Winter Park

Copper Mountain

Silverthorne

Frisco

Centennial

Grand Lake

Why use momondo?

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

It is quick and easy to find Ontario to Denver flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Denver that suits you.

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

Yes. All flights to Denver from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Denver from Ontario.

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

Yes momondo offers price alerts on flights to Denver from Ontario. 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 Denver trip

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Cheap flights from Ontario to Denver from $142

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 Denver departing on 2/9. 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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Alaska Airlines flights from Region of Ontario to Denver

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

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 Denver?

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

The cheapest day to depart on your flight to Denver is on a Friday when prices can be found for as low as $432. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $608.

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

The cheapest time of day to fly to Denver is at noon when flights can be purchased for as low as $426. Flights in the morning are often more expensive with an average ticket price of $517.

What is the cheapest Ontario to Denver Intl flight route?

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

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

What cabin class options are available on Ontario to Denver Intl flights?

There are 4 cabin classes available to choose from on Ontario to Denver Intl 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 Denver flights?

You could potentially save up to 39% on your flight if you consider stops on a Region of Ontario to Denver flight.

What is the cheapest airline that flies from Ontario to Denver Intl?

Air Canada is the most popular carrier operating from Ontario to Denver Intl

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

The number of flights available between Region of Ontario and Denver is 8 per day as of November 2025. The most frequent departure time is 8:00AM, with 62% of daily flights leaving in the afternoon.

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

As of November 2025, 58 flights take off from Region of Ontario and land in Denver 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 does it take to fly to Denver?

Cheap Region of Ontario to Denver flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Denver

When did momondo last update prices for flights from Ontario to Denver Intl Airport?

How many operators does momondo search for flights from Ontario to Denver Intl Airport?

How old do you have to be to fly from Ontario to Denver Intl Airport?

What documentation or ID do you need to fly to Denver Intl Airport?

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

Best airlines flying from Region of Ontario to Denver

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

Traveling to a place near Denver?

Why use momondo?

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

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

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

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

An easier way to manage your Denver 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 the United States

Airports servicing Colorado