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

WestJet, Sun Country Air, 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 week?

The number of flights available between Denver and Region of Ontario is 74 per week as of July 2026. The most frequent departure day is Wed, with 20% of weekly flights leaving on this day.

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

As of July 2026, there are 10 flights per day flying from Denver to Region of Ontario. The most common time of day flights depart is 11:00a.m., with 54% 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 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$ 179 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.

10:44 a.m. - 12:55 p.m.

DEN

YTZ

24h 11m

2 stops

10:50 a.m. - 5:16 p.m.

YTZ

DEN

8h 26m

1 stop

C$ 489Multiple Airlines

Fri, 11 Sep - Wed, 16 Sep

10:44 a.m. - 12:55 p.m.

DEN

YTZ

24h 11m

2 stops

10:50 a.m. - 5:16 p.m.

YTZ

DEN

8h 26m

1 stop

C$ 493Multiple Airlines

Fri, 11 Sep - Wed, 16 Sep

8:55 p.m. - 2:25 p.m.

DEN

YTZ

15h 30m

1 stop

10:50 a.m. - 5:16 p.m.

YTZ

DEN

8h 26m

1 stop

C$ 496Multiple Airlines

Thu, 24 Sep - Wed, 30 Sep

7:10 p.m. - 12:55 p.m.

DEN

YTZ

39h 45m

2 stops

10:50 a.m. - 8:27 p.m.

YTZ

DEN

11h 37m

1 stop

C$ 497Multiple Airlines

Tue, 15 Sep - Mon, 21 Sep

10:44 a.m. - 2:25 p.m.

DEN

YTZ

25h 41m

2 stops

10:50 a.m. - 8:27 p.m.

YTZ

DEN

11h 37m

1 stop

C$ 497Multiple Airlines

Mon, 14 Sep - Mon, 21 Sep

9:16 p.m. - 8:55 p.m.

DEN

YYZ

21h 39m

2 stops

4:45 p.m. - 10:35 p.m.

YYZ

DEN

7h 50m

1 stop

C$ 501Multiple Airlines

Wed, 9 Sep - Mon, 14 Sep

8:31 a.m. - 9:55 p.m.

DEN

YYZ

11h 24m

1 stop

1:30 p.m. - 12:10 p.m.

YYZ

DEN

48h 40m

2 stops

C$ 501Multiple Airlines

Thu, 3 Sep - Mon, 14 Sep

9:16 p.m. - 8:55 p.m.

DEN

YYZ

21h 39m

2 stops

4:45 p.m. - 5:22 p.m.

YYZ

DEN

26h 37m

1 stop

C$ 501Multiple Airlines

Wed, 9 Sep - Wed, 16 Sep

9:10 a.m. - 8:09 p.m.

DEN

YYZ

8h 59m

1 stop

6:40 p.m. - 8:17 p.m.

YYZ

DEN

3h 37mdirect

C$ 718Air Canada

Thu, 3 Sep - Wed, 9 Sep

11:35 a.m. - 4:45 p.m.

DEN

YYZ

3h 10mdirect

8:55 a.m. - 10:32 a.m.

YYZ

DEN

3h 37mdirect

C$ 720Air Canada

Sat, 12 Sep - Sat, 19 Sep

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WestJet flights from Denver to Region of Ontario

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

WestJet

22 Aug

DEN12:15 p.m.Denver Intl

9h 55m

1 stop

YYZ12:10 a.m.Toronto Pearson Intl

29 Aug

YYZ10:20 p.m.Toronto Pearson Intl

15h 00m

2 stops

DEN11:20 a.m.Denver Intl

C$ 508

WestJet

18 Sep

DEN12:15 p.m.Denver Intl

15h 30m

1 stop

YYZ5:45 a.m.Toronto Pearson Intl

20 Sep

YYZ10:25 p.m.Toronto Pearson Intl

14h 55m

1 stop

DEN11:20 a.m.Denver Intl

C$ 510

WestJet

26 Aug

DEN12:15 p.m.Denver Intl

9h 55m

1 stop

YYZ12:10 a.m.Toronto Pearson Intl

30 Aug

YYZ6:10 a.m.Toronto Pearson Intl

31h 10m

2 stops

DEN11:20 a.m.Denver Intl

C$ 518

Porter Airlines flights from Denver to Region of Ontario

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

Porter Airlines

11 Aug

DEN11:33 a.m.Denver Intl

8h 07m

1 stop

YYZ9:40 p.m.Toronto Pearson Intl

15 Aug

YYZ7:25 a.m.Toronto Pearson Intl

17h 58m

2 stops

DEN11:23 p.m.Denver Intl

C$ 763

Porter Airlines

11 Aug

DEN5:00 a.m.Denver Intl

14h 40m

2 stops

YYZ9:40 p.m.Toronto Pearson Intl

15 Aug

YYZ7:25 a.m.Toronto Pearson Intl

17h 58m

2 stops

DEN11:23 p.m.Denver Intl

C$ 776

Porter Airlines

11 Aug

DEN11:59 p.m.Denver Intl

20h 05m

3 stops

YYZ10:04 p.m.Toronto Pearson Intl

15 Aug

YYZ7:25 a.m.Toronto Pearson Intl

17h 58m

2 stops

DEN11:23 p.m.Denver Intl

C$ 777

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverToronto

DEN - YTZ

DENYTZ

Denver Intl

Fri 11/9

10:44 a.m.-12:55 p.m.

2 stops24h 11m

Toronto Island

Wed 16/9

10:50 a.m.-5:16 p.m.

1 stop8h 26m

C$ 489

DenverToronto

DEN - YTZ

DENYTZ

Denver Intl

Fri 11/9

10:44 a.m.-12:55 p.m.

2 stops24h 11m

Toronto Island

Wed 16/9

10:50 a.m.-5:16 p.m.

1 stop8h 26m

C$ 493

DenverToronto

DEN - YTZ

DENYTZ

Denver Intl

Thu 24/9

8:55 p.m.-2:25 p.m.

1 stop15h 30m

Toronto Island

Wed 30/9

10:50 a.m.-5:16 p.m.

1 stop8h 26m

C$ 496

DenverToronto

DEN - YTZ

DENYTZ

Denver Intl

Tue 15/9

7:10 p.m.-12:55 p.m.

2 stops39h 45m

Toronto Island

Mon 21/9

10:50 a.m.-8:27 p.m.

1 stop11h 37m

C$ 497

DenverToronto

DEN - YTZ

DENYTZ

Denver Intl

Mon 14/9

10:44 a.m.-2:25 p.m.

2 stops25h 41m

Toronto Island

Mon 21/9

10:50 a.m.-8:27 p.m.

1 stop11h 37m

C$ 497

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Wed 9/9

9:16 p.m.-8:55 p.m.

2 stops21h 39m

Toronto Pearson Intl

Mon 14/9

4:45 p.m.-10:35 p.m.

1 stop7h 50m

C$ 501

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 3/9

8:31 a.m.-9:55 p.m.

1 stop11h 24m

Toronto Pearson Intl

Mon 14/9

1:30 p.m.-12:10 p.m.

2 stops48h 40m

C$ 501

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Wed 9/9

9:16 p.m.-8:55 p.m.

2 stops21h 39m

Toronto Pearson Intl

Wed 16/9

4:45 p.m.-5:22 p.m.

1 stop26h 37m

C$ 501

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 3/9

9:10 a.m.-8:09 p.m.

1 stop8h 59m

Toronto Pearson Intl

Wed 9/9

6:40 p.m.-8:17 p.m.

Nonstop3h 37m

C$ 718

Quickest round-trip

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Sat 12/9

11:35 a.m.-4:45 p.m.

Nonstop3h 10m

Toronto Pearson Intl

Sat 19/9

8:55 a.m.-10:32 a.m.

Nonstop3h 37m

C$ 720

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, October 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$ 706. If you are unable to visit Region of Ontario during the month of October, then departing from Denver during the month September is also very affordable. Most momondo users find prices during this month for around C$ 729.

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$ 365. The most expensive day to fly to Region of Ontario is Friday, with ticket prices averaging around C$ 951.

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$ 405. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are C$ 951 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 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$ 817 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$ 598 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 65% 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$ 318
Fastest flight time	3h 07m
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$ 318. The best round-trip flight deal from Denver to Region of Ontario found on momondo in the last 72 hours is C$ 365.

The fastest flight from Denver to Region of Ontario takes 3h 07m

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 July 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 29.61% of the total bookings. Other popular models include Airbus A220-300 with 24.61%, Airbus A220 with 13.02%, and Airbus A320-100/200 with 8.44%.

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$ 293	Free Cancellation	Rating 7.1 11,407 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.

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Popular Cities in Ontario

Flights to Torontofrom C$ 115

Flights to Vancouverfrom C$ 114

Flights to Montrealfrom C$ 201

Flights to Calgaryfrom C$ 100

Flights to Halifaxfrom C$ 156

Flights to Winnipegfrom C$ 115

Flights to Ottawafrom C$ 183

Flights to Kelownafrom C$ 113

Flights to Saskatoonfrom C$ 179

Flights to St. John'sfrom C$ 206

Flights to Reginafrom C$ 204

Flights to Québec Cityfrom C$ 304

Cheap flights from Denver to Ontario from C$ 179

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 24/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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WestJet flights from Denver to Region of Ontario

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

Porter Airlines flights from Denver to Region of Ontario

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

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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 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

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

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