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 102 per week as of June 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?

WestJet, Delta, and Air Canada 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 June 2026, there are 14 flights per day flying from Denver to Region of Ontario. The most common time of day flights depart is 11:00a.m., with 55% of flights taking off at noon.

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

Prices for flights from Denver Intl Airport to Ontario were last updated today.

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

As of June 2026, there is 1 operator available to choose from for flights from Denver Intl Airport to Ontario.

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 required travel and health documents for your Ontario 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 Ontario. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

C$ 231 Cheap Flights from Denver to Ontario in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Denver to Ontario

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:56 p.m. - 2:25 p.m.

DEN

YTZ

18h 29m

1 stop

1:40 p.m. - 12:29 a.m.

YTZ

DEN

12h 49m

1 stop

C$ 463Multiple Airlines

Wed, 16 Sep - Sat, 19 Sep

6:25 a.m. - 2:25 p.m.

DEN

YTZ

6h 00m

1 stop

1:40 p.m. - 12:29 a.m.

YTZ

DEN

12h 49m

1 stop

C$ 496Multiple Airlines

Tue, 22 Sep - Tue, 29 Sep

8:52 p.m. - 8:50 p.m.

DEN

YYZ

21h 58m

1 stop

12:55 p.m. - 9:41 p.m.

YYZ

DEN

10h 46m

1 stop

C$ 506Multiple Airlines

Wed, 22 Jul - Tue, 28 Jul

12:15 p.m. - 11:45 p.m.

DEN

YUL

9h 30m

1 stop

7:15 a.m. - 11:20 a.m.

YUL

DEN

30h 05m

1 stop

C$ 571WestJet

Mon, 24 Aug - Thu, 27 Aug

12:15 p.m. - 7:50 p.m.

DEN

YKF

29h 35m

1 stop

8:40 p.m. - 11:20 a.m.

YKF

DEN

16h 40m

1 stop

C$ 605WestJet

Tue, 7 Jul - Tue, 14 Jul

12:15 p.m. - 11:45 p.m.

DEN

YUL

9h 30m

1 stop

8:00 p.m. - 11:20 a.m.

YUL

DEN

17h 20m

1 stop

C$ 608WestJet

Thu, 27 Aug - Thu, 3 Sep

11:30 a.m. - 8:32 p.m.

DEN

YXU

7h 02m

1 stop

3:30 p.m. - 8:22 p.m.

YXU

DEN

6h 52m

1 stop

C$ 969Air Canada

Fri, 31 Jul - Sun, 9 Aug

11:30 a.m. - 8:32 p.m.

DEN

YXU

7h 02m

1 stop

5:40 a.m. - 10:35 a.m.

YXU

DEN

6h 55m

1 stop

C$ 970Air Canada

Fri, 31 Jul - Sun, 9 Aug

11:30 a.m. - 8:32 p.m.

DEN

YXU

7h 02m

1 stop

5:40 a.m. - 10:35 a.m.

YXU

DEN

6h 55m

1 stop

C$ 1,130Air Canada

Fri, 31 Jul - Sun, 9 Aug

9:40 a.m. - 9:40 p.m.

DEN

YXU

10h 00m

2 stops

5:40 a.m. - 10:35 a.m.

YXU

DEN

6h 55m

1 stop

C$ 1,150Air Canada

Tue, 1 Sep - Sat, 5 Sep

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

WestJet flights from Denver to Region of Ontario

Our best WestJet deals on Denver to Region of Ontario flight tickets

WestJet

24 Aug

DEN12:15 p.m.Denver Intl

9h 30m

1 stop

YUL11:45 p.m.Montreal Pierre Elliott Trudeau Intl

27 Aug

YUL7:15 a.m.Montreal Pierre Elliott Trudeau Intl

30h 05m

1 stop

DEN11:20 a.m.Denver Intl

C$ 571

WestJet

7 Jul

DEN12:15 p.m.Denver Intl

29h 35m

1 stop

YKF7:50 p.m.Toronto Region of Waterloo Intl

14 Jul

YKF8:40 p.m.Toronto Region of Waterloo Intl

16h 40m

1 stop

DEN11:20 a.m.Denver Intl

C$ 605

WestJet

14 Jul

DEN12:15 p.m.Denver Intl

9h 55m

1 stop

YYZ12:10 a.m.Toronto Pearson Intl

20 Jul

YYZ10:25 p.m.Toronto Pearson Intl

14h 55m

1 stop

DEN11:20 a.m.Denver Intl

C$ 606

Air Canada flights from Denver to Region of Ontario

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

Air Canada

25 Jun

DEN6:05 p.m.Denver Intl

3h 12m

YYZ11:17 p.m.Toronto Pearson Intl

2 Jul

YYZ8:55 a.m.Toronto Pearson Intl

3h 40m

DEN10:35 a.m.Denver Intl

C$ 647

Air Canada

25 Jun

DEN6:05 p.m.Denver Intl

3h 12m

YYZ11:17 p.m.Toronto Pearson Intl

2 Jul

YYZ8:55 a.m.Toronto Pearson Intl

3h 40m

DEN10:35 a.m.Denver Intl

C$ 649

Air Canada

25 Jun

DEN6:05 p.m.Denver Intl

3h 12m

YYZ11:17 p.m.Toronto Pearson Intl

1 Jul

YYZ12:30 a.m.Toronto Pearson Intl

12h 03m

1 stop

DEN10:33 a.m.Denver Intl

C$ 702

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverToronto

DEN - YTZ

DENYTZ

Denver Intl

Wed 16/9

5:56 p.m.-2:25 p.m.

1 stop18h 29m

Toronto Island

Sat 19/9

1:40 p.m.-12:29 a.m.

1 stop12h 49m

C$ 463

DenverToronto

DEN - YTZ

DENYTZ

Denver Intl

Tue 22/9

6:25 a.m.-2:25 p.m.

1 stop6h 00m

Toronto Island

Tue 29/9

1:40 p.m.-12:29 a.m.

1 stop12h 49m

C$ 496

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Wed 22/7

8:52 p.m.-8:50 p.m.

1 stop21h 58m

Toronto Pearson Intl

Tue 28/7

12:55 p.m.-9:41 p.m.

1 stop10h 46m

C$ 506

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

Mon 24/8

12:15 p.m.-11:45 p.m.

1 stop9h 30m

Montreal Pierre Elliott Trudeau Intl

Thu 27/8

7:15 a.m.-11:20 a.m.

1 stop30h 05m

C$ 571

DenverToronto

DEN - YKF

DENYKF

Denver Intl

Tue 7/7

12:15 p.m.-7:50 p.m.

1 stop29h 35m

Toronto Region of Waterloo Intl

Tue 14/7

8:40 p.m.-11:20 a.m.

1 stop16h 40m

C$ 605

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

Thu 27/8

12:15 p.m.-11:45 p.m.

1 stop9h 30m

Montreal Pierre Elliott Trudeau Intl

Thu 3/9

8:00 p.m.-11:20 a.m.

1 stop17h 20m

C$ 608

Quickest round-trip

DenverLondon

DEN - YXU

DENYXU

Denver Intl

Fri 31/7

11:30 a.m.-8:32 p.m.

1 stop7h 02m

London

Sun 9/8

3:30 p.m.-8:22 p.m.

1 stop6h 52m

C$ 969

DenverLondon

DEN - YXU

DENYXU

Denver Intl

Fri 31/7

11:30 a.m.-8:32 p.m.

1 stop7h 02m

London

Sun 9/8

5:40 a.m.-10:35 a.m.

1 stop6h 55m

C$ 970

DenverLondon

DEN - YXU

DENYXU

Denver Intl

Fri 31/7

11:30 a.m.-8:32 p.m.

1 stop7h 02m

London

Sun 9/8

5:40 a.m.-10:35 a.m.

1 stop6h 55m

C$ 1,130

DenverLondon

DEN - YXU

DENYXU

Denver Intl

Tue 1/9

9:40 a.m.-9:40 p.m.

2 stops10h 00m

London

Sat 5/9

5:40 a.m.-10:35 a.m.

1 stop6h 55m

C$ 1,150

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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?

In general, July is the cheapest month to fly from Denver to Region of Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 166. If you are unable to visit Region of Ontario during the month of July, then departing from Denver during the month January is also very affordable. Most momondo users find prices during this month for around C$ 180.

What is the cheapest day to depart on your flight to Region of Ontario?

The cheapest day to depart from Denver to Region of Ontario is on a Monday. Travellers who choose to depart for Region of Ontario on a Monday will often find tickets for as low as C$ 274. The most expensive day to fly to Region of Ontario is Friday, with ticket prices averaging around C$ 941.

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

Our most recent data shows that the best time of day to fly to Region of Ontario is in the afternoon. Flights from Denver to Region of Ontario during this time can be as low as C$ 401. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 885 on average. Flights to Region of Ontario from Denver at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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 from Denver to 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 C$ 784 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 C$ 629 on momondo.

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

There are 2 cabin classes available to choose from on Denver to Region of 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 81% 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	C$ 704
Fastest flight time	3h 10m
Direct flights	Every day
Airports in Region of Ontario	125 airports

The best one-way flight to Region of Ontario from Denver in the past 72 hours is C$ 704. The best round-trip flight deal from Denver to Region of Ontario found on momondo in the last 72 hours is C$ 401.

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 125 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

Frequently asked questions about flying from Denver to Ontario

When did momondo last update prices for flights from Denver Intl Airport to Ontario?
Prices for flights from Denver Intl Airport to Ontario were last updated today.
How many operators does momondo search for flights from Denver Intl Airport to Ontario?
As of June 2026, there is 1 operator available to choose from for flights from Denver Intl Airport to Ontario.
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 required travel and health documents for your Ontario 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 Ontario. 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 Denver to Region of Ontario?
Based on momondo bookings for flights between Denver and Region of Ontario, the leading plane model is Airbus A319, making up 30.45% of the total bookings. Other popular models include Airbus A220-300 with 28.82%, Airbus A320-100/200 with 9.74%, and Airbus A220 with 6.36%.

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
Air Canada	PriceFrom C$ 290	Free Cancellation	Rating 7.1 11,160 reviews		Search Air Canada flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Denver to Ontario . Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Denver to Ontario on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Ontario from Denver. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are not ready to book a flight from Denver to Ontario now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ontario and let you know when they 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.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Sat 11/7

Sat 18/7

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Ontario

Popular cities

Other flights from Denver

Other flights to Ontario

Airlines

Complete your trip

Feeling lucky

Popular Cities in Ontario

Flights to Torontofrom C$ 139

Flights to Vancouverfrom C$ 109

Flights to Montrealfrom C$ 295

Flights to Calgaryfrom C$ 149

Flights to Winnipegfrom C$ 151

Flights to Ottawafrom C$ 269

Flights to Halifaxfrom C$ 169

Flights to Kelownafrom C$ 130

Flights to Saskatoonfrom C$ 226

Flights to Reginafrom C$ 245

Flights to St. John'sfrom C$ 276

Flights to Québec Cityfrom C$ 321

Cheap flights from Denver to Ontario from C$ 231

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 5/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Denver to Ontario

Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

WestJet flights from Denver to Region of Ontario

Our best WestJet deals on Denver to Region of Ontario flight tickets

Air Canada flights from Denver to Region of Ontario

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

momondo Fare Finder

Use the filters below to find and compare flights from Denver to Ontario that are best for you.

See travel insights to Ontario from

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 from Denver to Ontario?

What cabin class options are available on Denver to Region of 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?

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

Frequently asked questions about flying from Denver to 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?

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

Denver flight routes

According to popular flight searches on momondo this year

Region of Ontario flight routes

According to popular flight searches on momondo this year

Fly your favourite airline to Ontario

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Complete your trip to Ontario

Explore popular destinations other users love

According to popular flight searches on momondo this year