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

WestJet, Air Canada, and American 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 week?

The number of flights available between Denver and Region of Ontario is 109 per week as of July 2025. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.

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

As of July 2025, there are 15 flights per day flying from Denver to Region of Ontario. The most common time of day flights depart is 11:00a.m., with 81% 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 July 2025, 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$ 155 Cheap Flights from Denver to Ontario in 2025

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Find the cheapest flights from Denver to Ontario

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

12:15 p.m. - 12:22 a.m.DEN-YYZ

10h 07m1 stop

10:00 a.m. - 6:48 p.m.YYZ-DEN

10h 48m1 stop

C$ 380WestJet

Find Deal

Thu, 4 Sep - Sun, 7 Sep

12:28 p.m. - 8:02 p.m.DEN-YTZ

5h 34m1 stop

7:30 a.m. - 6:26 p.m.YTZ-DEN

12h 56m1 stop

C$ 382

Find Deal

Fri, 12 Sep - Mon, 15 Sep

7:05 p.m. - 8:19 a.m.DEN-YOW

11h 14m1 stop

6:00 a.m. - 10:21 a.m.YOW-DEN

6h 21m1 stop

C$ 424Air Canada

Find Deal

Sat, 2 Aug - Fri, 8 Aug

6:37 p.m. - 2:54 p.m.DEN-YUL

18h 17m1 stop

5:29 p.m. - 8:51 a.m.YUL-DEN

17h 22m1 stop

C$ 440American Airlines

Find Deal

Thu, 7 Aug - Fri, 8 Aug

11:35 a.m. - 1:35 a.m.DEN-YOW

12h 00m2 stops

6:00 a.m. - 10:21 a.m.YOW-DEN

6h 21m1 stop

C$ 449Air Canada

Find Deal

Sun, 24 Aug - Sun, 31 Aug

6:00 a.m. - 5:26 p.m.DEN-YUL

9h 26m1 stop

9:45 a.m. - 2:46 p.m.YUL-DEN

7h 01m1 stop

C$ 503United Airlines

Find Deal

Thu, 7 Aug - Thu, 14 Aug

6:03 a.m. - 4:43 p.m.DEN-YOW

8h 40m1 stop

7:29 p.m. - 12:30 a.m.YOW-DEN

7h 01m1 stop

C$ 505United Airlines

Find Deal

Sat, 26 Jul - Sat, 26 Jul

6:35 p.m. - 2:45 p.m.DEN-YUL

18h 10m1 stop

12:30 p.m. - 10:15 p.m.YUL-DEN

11h 45m2 stops

C$ 517American Airlines

Find Deal

Mon, 4 Aug - Wed, 13 Aug

12:59 a.m. - 11:41 a.m.DEN-YUL

8h 42m1 stop

6:20 a.m. - 12:47 p.m.YUL-DEN

8h 27m1 stop

C$ 555Delta

Find Deal

Sun, 3 Aug - Tue, 12 Aug

6:15 a.m. - 5:14 a.m.DEN-YXU

20h 59m2 stops

6:00 a.m. - 11:49 p.m.YXU-DEN

19h 49m2 stops

C$ 859Delta

Find Deal

Fri, 8 Aug - Wed, 13 Aug

WestJet flights from Denver to Region of Ontario

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

WestJet

4 Sep

DEN12:15 p.m.Denver Intl

10h 07m

1 stop

YYZ12:22 a.m.Toronto Pearson Intl

7 Sep

YYZ10:00 a.m.Toronto Pearson Intl

10h 48m

1 stop

DEN6:48 p.m.Denver Intl

C$ 380

Find similar

WestJet

7 Sep

DEN7:40 p.m.Denver Intl

8h 32m

1 stop

YYZ6:12 a.m.Toronto Pearson Intl

13 Sep

YYZ10:25 p.m.Toronto Pearson Intl

14h 59m

1 stop

DEN11:24 a.m.Denver Intl

C$ 398

Find similar

WestJet

18 Sep

DEN12:15 p.m.Denver Intl

8h 37m

1 stop

YYZ10:52 p.m.Toronto Pearson Intl

21 Sep

YYZ10:25 p.m.Toronto Pearson Intl

14h 59m

1 stop

DEN11:24 a.m.Denver Intl

C$ 408

Find similar

Air Canada flights from Denver to Region of Ontario

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

Air Canada

2 Aug

DEN7:05 p.m.Denver Intl

11h 14m

1 stop

YOW8:19 a.m.Ottawa

8 Aug

YOW6:00 a.m.Ottawa

6h 21m

1 stop

DEN10:21 a.m.Denver Intl

C$ 424

Find similar

Air Canada

24 Aug

DEN11:35 a.m.Denver Intl

12h 00m

2 stops

YOW1:35 a.m.Ottawa

31 Aug

YOW6:00 a.m.Ottawa

6h 21m

1 stop

DEN10:21 a.m.Denver Intl

C$ 449

Find similar

Air Canada

24 Aug

DEN7:05 p.m.Denver Intl

11h 14m

1 stop

YOW8:19 a.m.Ottawa

31 Aug

YOW6:00 a.m.Ottawa

6h 21m

1 stop

DEN10:21 a.m.Denver Intl

C$ 450

Find similar

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, March 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$ 356. If you are unable to visit Region of Ontario during the month of March, then departing from Denver during the month January is also very affordable. Most momondo users find prices during this month for around C$ 434.

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 Thursday. Travellers who choose to depart for Region of Ontario on a Thursday will often find tickets for as low as C$ 319. The most expensive day to fly to Region of Ontario is Friday, with ticket prices averaging around C$ 870.

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 at noon. Flights from Denver to Region of Ontario during this time can be as low as C$ 444. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 659 on average. Flights to Region of Ontario from Denver in the morning 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 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 C$ 647 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$ 431 on momondo.

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

There are 3 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?

No. A direct flight is the cheapest option for a flight between Denver to Region of Ontario.

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$ 155
Fastest flight time	3h 10m
Direct flights	Every day
Airports in Region of Ontario	6 airports

The best one-way flight to Region of Ontario from Denver in the past 72 hours is C$ 155. The best round-trip flight deal from Denver to Region of Ontario found on momondo in the last 72 hours is C$ 380.

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 6 airports near Region of Ontario: Ottawa (YOW), Montreal Pierre Elliott Trudeau Intl (YUL), Toronto Region of Waterloo Intl (YKF), Toronto Pearson Intl (YYZ), Toronto Island (YTZ), Hamilton (YHM)

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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 July 2025, 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 A320-100/200, making up 48.38% of the total bookings. Other popular models include Airbus A220-300 with 30.54%, Boeing 737-800 with 5.45%, and Boeing 787-9 Dreamliner with 3.63%.

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$ 213	Free Cancellation	Rating 7.1 9,695 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

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Find better results for your trip to Ontario

Popular Cities in Ontario

Flights to Torontofrom C$ 118

Flights to Vancouverfrom C$ 82

Flights to Montrealfrom C$ 235

Flights to Calgaryfrom C$ 86

Flights to Ottawafrom C$ 200

Flights to Winnipegfrom C$ 124

Flights to Halifaxfrom C$ 129

Flights to Kelownafrom C$ 109

Flights to Saskatoonfrom C$ 146

Flights to Reginafrom C$ 161

Flights to St. John'sfrom C$ 257

Flights to Québec Cityfrom C$ 297

Cheap flights from Denver to Ontario from C$ 155

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 19/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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

Find the cheapest flights from Denver to Ontario

Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

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

See travel insights to Ontario from

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

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?

The cheapest day to depart from Denver to Region of Ontario is on a Thursday. Travellers who choose to depart for Region of Ontario on a Thursday will often find tickets for as low as C$ 319. The most expensive day to fly to Region of Ontario is Friday, with ticket prices averaging around C$ 870.

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?

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?

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

There are 3 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?

No. A direct flight is the cheapest option for a flight between Denver to Region of Ontario.

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

WestJet, Air Canada, and American 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 July 2025, there are 15 flights per day flying from Denver to Region of Ontario. The most common time of day flights depart is 11:00a.m., with 81% of flights taking off at noon.

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 109 per week as of July 2025. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.

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

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

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

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

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

What is the most popular plane model from Denver to 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

Popular Cities in Ontario

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