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.

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

WestJet, American Airlines, 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 July 2025, 15 flights take off from Denver and land in Region of Ontario each day. The most common flight departure time for this route is 11:00AM, with 81% of daily 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.

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 July 2025.

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.

$113 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 pm - 12:22 amDEN-YYZ

10h 07m1 stop

10:00 am - 6:48 pmYYZ-DEN

10h 48m1 stop

$278WestJet

Find Deal

Thu, Sep 4 - Sun, Sep 7

12:28 pm - 8:02 pmDEN-YTZ

5h 34m1 stop

7:30 am - 6:26 pmYTZ-DEN

12h 56m1 stop

$279

Find Deal

Fri, Sep 12 - Mon, Sep 15

7:05 pm - 8:19 amDEN-YOW

11h 14m1 stop

6:00 am - 10:21 amYOW-DEN

6h 21m1 stop

$310Air Canada

Find Deal

Sat, Aug 2 - Fri, Aug 8

6:37 pm - 2:54 pmDEN-YUL

18h 17m1 stop

5:29 pm - 8:51 amYUL-DEN

17h 22m1 stop

$322American Airlines

Find Deal

Thu, Aug 7 - Fri, Aug 8

11:35 am - 1:35 amDEN-YOW

12h 00m2 stops

6:00 am - 10:21 amYOW-DEN

6h 21m1 stop

$328Air Canada

Find Deal

Sun, Aug 24 - Sun, Aug 31

6:00 am - 5:26 pmDEN-YUL

9h 26m1 stop

9:45 am - 2:46 pmYUL-DEN

7h 01m1 stop

$368United Airlines

Find Deal

Thu, Aug 7 - Thu, Aug 14

6:03 am - 4:43 pmDEN-YOW

8h 40m1 stop

7:29 pm - 12:30 amYOW-DEN

7h 01m1 stop

$369United Airlines

Find Deal

Sat, Jul 26 - Sat, Jul 26

6:35 pm - 2:45 pmDEN-YUL

18h 10m1 stop

12:30 pm - 10:15 pmYUL-DEN

11h 45m2 stops

$378American Airlines

Find Deal

Mon, Aug 4 - Wed, Aug 13

12:59 am - 11:41 amDEN-YUL

8h 42m1 stop

6:20 am - 12:47 pmYUL-DEN

8h 27m1 stop

$406Delta

Find Deal

Sun, Aug 3 - Tue, Aug 12

6:15 am - 5:14 amDEN-YXU

20h 59m2 stops

6:00 am - 11:49 pmYXU-DEN

19h 49m2 stops

$628Delta

Find Deal

Fri, Aug 8 - Wed, Aug 13

WestJet flights from Denver to Region of Ontario

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

WestJet

Sep 4

DEN12:15 pmDenver Intl

10h 07m

1 stop

YYZ12:22 amToronto Pearson Intl

Sep 7

YYZ10:00 amToronto Pearson Intl

10h 48m

1 stop

DEN6:48 pmDenver Intl

$278

Find similar

WestJet

Sep 7

DEN7:40 pmDenver Intl

8h 32m

1 stop

YYZ6:12 amToronto Pearson Intl

Sep 13

YYZ10:25 pmToronto Pearson Intl

14h 59m

1 stop

DEN11:24 amDenver Intl

$291

Find similar

WestJet

Sep 18

DEN12:15 pmDenver Intl

8h 37m

1 stop

YYZ10:52 pmToronto Pearson Intl

Sep 21

YYZ10:25 pmToronto Pearson Intl

14h 59m

1 stop

DEN11:24 amDenver Intl

$298

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

Aug 2

DEN7:05 pmDenver Intl

11h 14m

1 stop

YOW8:19 amOttawa

Aug 8

YOW6:00 amOttawa

6h 21m

1 stop

DEN10:21 amDenver Intl

$310

Find similar

Air Canada

Aug 24

DEN11:35 amDenver Intl

12h 00m

2 stops

YOW1:35 amOttawa

Aug 31

YOW6:00 amOttawa

6h 21m

1 stop

DEN10:21 amDenver Intl

$328

Find similar

Air Canada

Aug 24

DEN7:05 pmDenver Intl

11h 14m

1 stop

YOW8:19 amOttawa

Aug 31

YOW6:00 amOttawa

6h 21m

1 stop

DEN10:21 amDenver Intl

$329

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?

The month of March is, on average, the cheapest month to fly to Region of Ontario from Denver, with most prices found around $260. If you aren’t able to travel during the month of March, then book flights to Region of Ontario from Denver during January instead. Flights to Region of Ontario in January, while not as cheap as those in March, still average around $317.

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 $692. 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 Monday will generally be more expensive and average around $815. 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 in the evening. momondo users have found flights departing from Denver to Region of Ontario in the evening for as low as $588. 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 $473 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 $315 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.

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	$113
Fastest flight time	3h 10m
Direct flights	Every day
Airports in Region of Ontario	5 airports

The best one-way flight to Region of Ontario from Denver in the past 72 hours is $113. The best round-trip flight deal from Denver to Region of Ontario found on momondo in the last 72 hours is $278.

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 5 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)

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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 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 July 2025.
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 A320-100/200, representing 48.38% of all bookings. The subsequent popular models are Airbus A220-300 at 30.54%, Boeing 737-800 at 5.45%, and Boeing 787-9 Dreamliner at 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
WestJet	PriceFrom $143	Free Cancellation	Rating 7.2 2,924 reviews	Search WestJet flights
Air Canada	PriceFrom $230	Free Cancellation	Rating 7.1 9,692 reviews	Search Air Canada flights
United Airlines	PriceFrom $289	Free Cancellation	Rating 7.4 8,846 reviews	Search United Airlines flights
Delta	PriceFrom $373	Free Cancellation	Rating 8.0 7,952 reviews	Search Delta 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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Find better results for your trip to Ontario

Popular cities in Ontario

Flights to Torontofrom $98

Flights to Vancouverfrom $79

Flights to Montrealfrom $136

Flights to Calgaryfrom $142

Flights to Ottawafrom $211

Flights to Halifaxfrom $170

Flights to Winnipegfrom $168

Flights to Québec Cityfrom $248

Flights to Kelownafrom $216

Flights to Saskatoonfrom $177

Flights to Reginafrom $234

Flights to St. John'sfrom $224

Cheap flights from Denver to Ontario from $113

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 9/19. 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 and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Find the cheapest flights from Denver to Ontario

Cheap round-trip flights

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Cheap last minute flights

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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?

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 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.

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

WestJet, American Airlines, and Air Canada are the most popular carriers operating 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?

As of July 2025, 15 flights take off from Denver and land in Region of Ontario each day. The most common flight departure time for this route is 11:00AM, with 81% of daily 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