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

The number of flights available between Denver and Region of Ontario is 66 per week as of February 2026. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.

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

American Airlines, Delta, and United Airlines are the most popular carriers operating from Denver Intl to Ontario

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

As of February 2026, 9 flights take off from Denver and land in Region of Ontario each day. The most common flight departure time for this route is 1:00PM, with 68% of daily flights 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 Denver 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 Denver Intl Airport to Ontario?

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

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

There are 5 operators available for flights from Denver Intl Airport to Ontario as of February 2026.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Denver Intl Airport to Ontario.

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

The necessary travel and health documents for your Ontario trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$104 Cheap Flights from Denver to Ontario in 2026

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2:37 pm - 6:13 am

DEN

YYZ

13h 36m

2 stops

8:00 pm - 12:19 am

YYZ

DEN

30h 19m

1 stop

$246Multiple Airlines

Tue, Apr 14 - Mon, Apr 20

11:59 pm - 2:20 pm

DEN

YYZ

12h 21m

1 stop

8:00 pm - 12:19 am

YYZ

DEN

30h 19m

1 stop

$253Multiple Airlines

Tue, Apr 14 - Mon, Apr 20

5:30 am - 2:44 pm

DEN

YUL

7h 14m

1 stop

7:29 am - 12:35 pm

YUL

DEN

7h 06m

1 stop

$326American Airlines

Thu, Apr 23 - Tue, Apr 28

5:30 am - 2:44 pm

DEN

YUL

7h 14m

1 stop

12:30 pm - 5:02 pm

YUL

DEN

6h 32m

1 stop

$336American Airlines

Thu, Apr 23 - Sat, Apr 25

12:15 pm - 11:45 pm

DEN

YUL

9h 30m

1 stop

7:15 am - 11:20 am

YUL

DEN

30h 05m

1 stop

$372WestJet

Mon, May 4 - Thu, May 7

12:15 pm - 11:45 pm

DEN

YUL

9h 30m

1 stop

8:00 pm - 11:20 am

YUL

DEN

17h 20m

1 stop

$382WestJet

Tue, Jun 9 - Tue, Jun 16

9:40 am - 7:52 pm

DEN

YTZ

8h 12m

1 stop

12:30 pm - 7:00 pm

YTZ

DEN

8h 30m

1 stop

$480Air Canada

Sun, May 3 - Wed, May 6

1:25 pm - 9:18 pm

DEN

YXU

5h 53m

1 stop

5:10 am - 10:18 am

YXU

DEN

7h 08m

1 stop

$704Air Canada

Wed, Apr 8 - Wed, Apr 15

9:02 pm - 9:18 pm

DEN

YXU

22h 16m

2 stops

5:10 am - 10:18 am

YXU

DEN

7h 08m

1 stop

$789United Airlines

Mon, Apr 6 - Mon, Apr 13

6:05 pm - 8:43 am

DEN

YXU

12h 38m

1 stop

5:10 am - 10:18 am

YXU

DEN

7h 08m

1 stop

$804United Airlines

Mon, Apr 6 - Mon, Apr 13

American Airlines flights from Denver to Region of Ontario

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

American Airlines

Mar 25

DEN7:00 amDenver Intl

8h 36m

1 stop

YYZ5:36 pmToronto Pearson Intl

Apr 1

YYZ6:10 amToronto Pearson Intl

11h 43m

1 stop

DEN3:53 pmDenver Intl

$284

American Airlines

Mar 30

DEN11:59 pmDenver Intl

13h 46m

1 stop

YYZ3:45 pmToronto Pearson Intl

Apr 1

YYZ6:10 amToronto Pearson Intl

7h 26m

1 stop

DEN11:36 amDenver Intl

$295

American Airlines

Mar 10

DEN12:33 pmDenver Intl

8h 06m

1 stop

YYZ10:39 pmToronto Pearson Intl

Mar 16

YYZ1:10 pmToronto Pearson Intl

11h 27m

1 stop

DEN10:37 pmDenver Intl

$305

Air Canada flights from Denver to Region of Ontario

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

Air Canada

Apr 6

DEN8:45 amDenver Intl

10h 18m

1 stop

YUL9:03 pmMontreal Pierre Elliott Trudeau Intl

Apr 13

YUL5:35 pmMontreal Pierre Elliott Trudeau Intl

4h 20m

DEN7:55 pmDenver Intl

$424

Air Canada

May 3

DEN9:40 amDenver Intl

8h 12m

1 stop

YTZ7:52 pmToronto Island

May 6

YTZ12:30 pmToronto Island

8h 30m

1 stop

DEN7:00 pmDenver Intl

$480

Air Canada

Mar 10

DEN1:25 pmDenver Intl

3h 10m

YYZ6:35 pmToronto Pearson Intl

Mar 16

YYZ8:30 amToronto Pearson Intl

3h 53m

DEN10:23 amDenver Intl

$481

Fly from

Fly to

Route

Depart

Return

Price

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Tue 4/14

2:37 pm-6:13 am

2 stops13h 36m

Toronto Pearson Intl

Mon 4/20

8:00 pm-12:19 am

1 stop30h 19m

$246

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Tue 4/14

11:59 pm-2:20 pm

1 stop12h 21m

Toronto Pearson Intl

Mon 4/20

8:00 pm-12:19 am

1 stop30h 19m

$253

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

Thu 4/23

5:30 am-2:44 pm

1 stop7h 14m

Montreal Pierre Elliott Trudeau Intl

Tue 4/28

7:29 am-12:35 pm

1 stop7h 06m

$326

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

Thu 4/23

5:30 am-2:44 pm

1 stop7h 14m

Montreal Pierre Elliott Trudeau Intl

Sat 4/25

12:30 pm-5:02 pm

1 stop6h 32m

$336

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

Mon 5/4

12:15 pm-11:45 pm

1 stop9h 30m

Montreal Pierre Elliott Trudeau Intl

Thu 5/7

7:15 am-11:20 am

1 stop30h 05m

$372

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

Tue 6/9

12:15 pm-11:45 pm

1 stop9h 30m

Montreal Pierre Elliott Trudeau Intl

Tue 6/16

8:00 pm-11:20 am

1 stop17h 20m

$382

DenverToronto

DEN - YTZ

DENYTZ

Denver Intl

Sun 5/3

9:40 am-7:52 pm

1 stop8h 12m

Toronto Island

Wed 5/6

12:30 pm-7:00 pm

1 stop8h 30m

$480

DenverLondon

DEN - YXU

DENYXU

Denver Intl

Wed 4/8

1:25 pm-9:18 pm

1 stop5h 53m

London

Wed 4/15

5:10 am-10:18 am

1 stop7h 08m

$704

DenverLondon

DEN - YXU

DENYXU

Denver Intl

Mon 4/6

9:02 pm-9:18 pm

2 stops22h 16m

London

Mon 4/13

5:10 am-10:18 am

1 stop7h 08m

$789

DenverLondon

DEN - YXU

DENYXU

Denver Intl

Mon 4/6

6:05 pm-8:43 am

1 stop12h 38m

London

Mon 4/13

5:10 am-10:18 am

1 stop7h 08m

$804

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How to get the cheapest flight ticket from Denver 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 Denver, 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 Denver during March instead. Flights to Region of Ontario in March, while not as cheap as those in September, still average around $460.

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 Denver. The lowest ticket price found for a Thursday departure recently was $632. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Denver to Region of Ontario on a Sunday will generally be more expensive and average around $782. 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 Denver to Region of Ontario at noon for as low as $671. 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 $729.

What is the cheapest Denver Intl to Ontario flight route?

Fly from Denver Intl to Toronto Pearson Intl for the best Denver Intl - 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 Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Region of Ontario for around $540 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 Denver for as low as $387 on momondo.

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

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

You could potentially save up to 34% on your flight if you consider stops on a Denver to Region of Ontario flight.

Cheap Denver to Region of Ontario flight deals and tips

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

Best Price Found	$284
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 Denver in the past 72 hours is $284. The best round-trip flight deal from Denver to Region of Ontario found on momondo in the last 72 hours is $596.

The fastest flight from Denver to Region of Ontario takes 3h 10m

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

There are 123 airports in Region of Ontario. From Denver 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 Denver Intl Airport to Ontario?
Prices for flights from Denver Intl Airport to Ontario are refreshed on a daily basis.
How many operators does momondo search for flights from Denver Intl Airport to Ontario?
There are 5 operators available for flights from Denver Intl Airport to Ontario as of February 2026.
How old do you have to be to fly from Denver Intl Airport to Ontario?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Denver Intl Airport to Ontario.
What documentation or ID do you need to fly to Ontario?
The necessary travel and health documents for your Ontario trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Denver to Region of Ontario?
momondo data reveals that the most frequently booked plane model on the route from Denver to Region of Ontario is Airbus A319, representing 42.82% of all bookings. The subsequent popular models are Airbus A220-300 at 27.09%, Boeing 787 Dreamliner at 8.62%, and Boeing 777 at 4.51%.

Best airlines flying from Denver to Region of Ontario

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

Airline	Rating	Free Cancellation	Price
WestJet	PriceFrom $130	Free Cancellation	Rating 7.2 3,273 reviews	Search WestJet flights
Air Canada	PriceFrom $198	Free Cancellation	Rating 7.1 10,742 reviews	Search Air Canada flights
Delta	PriceFrom $198	Free Cancellation	Rating 7.9 8,239 reviews	Search Delta flights
United Airlines	PriceFrom $218	Free Cancellation	Rating 7.4 9,344 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Denver 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 Denver to Ontario for you.

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

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

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

Once all potential Denver to Ontario 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 Denver to Ontario right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Ontario from Denver. 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 $110

Flights to Vancouverfrom $104

Flights to Montrealfrom $172

Flights to Calgaryfrom $173

Flights to Ottawafrom $169

Flights to Halifaxfrom $237

Flights to Winnipegfrom $174

Flights to Québec Cityfrom $305

Flights to Kelownafrom $161

Flights to Saskatoonfrom $213

Flights to St. John'sfrom $343

Flights to Reginafrom $252

Cheap flights from Denver to Ontario from $104

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Ontario departing on 4/20. 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 Denver to Region of Ontario

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How to get the cheapest flight ticket from Denver 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 Denver Intl to Ontario flight route?

How far in advance should I book a flight to Region of Ontario?

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

Can stopping save me money on Denver to Region of Ontario flights?

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

What airlines fly to Region of Ontario?

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

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

Cheap Denver to Region of Ontario flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Region of Ontario

Best airlines flying from Denver to Region of Ontario

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

Why use momondo?

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

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

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

I’m not ready to book a flight from Denver 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

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