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 87 per week as of July 2026. The most frequent departure day is Mon, with 17% of weekly flights leaving on this day.

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

WestJet, 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 July 2026, 12 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 54% of daily 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 are refreshed on a daily basis.

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

There are 2 operators available for flights from Denver Intl Airport to Ontario as of July 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.

$127 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 am - 12:55 pm

DEN

YTZ

24h 11m

2 stops

10:50 am - 5:16 pm

YTZ

DEN

8h 26m

1 stop

$347Multiple Airlines

Fri, Sep 11 - Wed, Sep 16

9:16 pm - 8:55 pm

DEN

YYZ

21h 39m

2 stops

4:45 pm - 5:22 pm

YYZ

DEN

26h 37m

1 stop

$356Multiple Airlines

Wed, Sep 9 - Wed, Sep 16

8:31 am - 9:55 pm

DEN

YYZ

11h 24m

1 stop

1:30 pm - 12:10 pm

YYZ

DEN

48h 40m

2 stops

$356Multiple Airlines

Thu, Sep 3 - Mon, Sep 14

9:16 pm - 8:55 pm

DEN

YYZ

21h 39m

2 stops

4:45 pm - 10:35 pm

YYZ

DEN

7h 50m

1 stop

$356Multiple Airlines

Wed, Sep 9 - Mon, Sep 14

9:10 am - 8:09 pm

DEN

YYZ

8h 59m

1 stop

6:40 pm - 8:17 pm

YYZ

DEN

3h 37mnonstop

$510Air Canada

Thu, Sep 3 - Wed, Sep 9

11:35 am - 4:45 pm

DEN

YYZ

3h 10mnonstop

8:55 am - 10:32 am

YYZ

DEN

3h 37mnonstop

$511Air Canada

Sat, Sep 12 - Sat, Sep 19

6:05 pm - 11:17 pm

DEN

YYZ

3h 12mnonstop

8:45 am - 10:22 am

YYZ

DEN

3h 37mnonstop

$512Air Canada

Thu, Sep 3 - Wed, Sep 9

5:30 am - 1:42 pm

DEN

YYZ

6h 12m

1 stop

4:18 pm - 5:56 pm

YYZ

DEN

3h 38mnonstop

$585United Airlines

Sat, Sep 12 - Sat, Sep 12

6:00 am - 1:42 pm

DEN

YYZ

5h 42m

1 stop

4:18 pm - 5:56 pm

YYZ

DEN

3h 38mnonstop

$585United Airlines

Sat, Oct 24 - Sat, Oct 24

11:59 pm - 1:47 pm

DEN

YYZ

11h 48m

1 stop

4:18 pm - 5:56 pm

YYZ

DEN

3h 38mnonstop

$585United Airlines

Sat, Oct 10 - Sun, Oct 11

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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

Aug 22

DEN12:15 pmDenver Intl

9h 55m

1 stop

YYZ12:10 amToronto Pearson Intl

Aug 29

YYZ10:20 pmToronto Pearson Intl

15h 00m

2 stops

DEN11:20 amDenver Intl

$361

WestJet

Sep 18

DEN12:15 pmDenver Intl

15h 30m

1 stop

YYZ5:45 amToronto Pearson Intl

Sep 24

YYZ8:00 pmToronto Pearson Intl

17h 20m

1 stop

DEN11:20 amDenver Intl

$362

WestJet

Aug 12

DEN12:15 pmDenver Intl

9h 55m

1 stop

YYZ12:10 amToronto Pearson Intl

Aug 19

YYZ10:20 pmToronto Pearson Intl

15h 00m

2 stops

DEN11:20 amDenver Intl

$368

Porter Airlines flights from Denver to Region of Ontario

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

Porter Airlines

Aug 11

DEN11:33 amDenver Intl

8h 07m

1 stop

YYZ9:40 pmToronto Pearson Intl

Aug 15

YYZ7:25 amToronto Pearson Intl

17h 58m

2 stops

DEN11:23 pmDenver Intl

$542

Porter Airlines

Aug 11

DEN5:00 amDenver Intl

14h 40m

2 stops

YYZ9:40 pmToronto Pearson Intl

Aug 15

YYZ7:25 amToronto Pearson Intl

17h 58m

2 stops

DEN11:23 pmDenver Intl

$551

Porter Airlines

Aug 11

DEN11:59 pmDenver Intl

20h 05m

3 stops

YYZ10:04 pmToronto Pearson Intl

Aug 15

YYZ7:25 amToronto Pearson Intl

17h 58m

2 stops

DEN11:23 pmDenver Intl

$552

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverToronto

DEN - YTZ

DENYTZ

Denver Intl

Fri 9/11

10:44 am-12:55 pm

2 stops24h 11m

Toronto Island

Wed 9/16

10:50 am-5:16 pm

1 stop8h 26m

$347

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Wed 9/9

9:16 pm-8:55 pm

2 stops21h 39m

Toronto Pearson Intl

Wed 9/16

4:45 pm-5:22 pm

1 stop26h 37m

$356

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 9/3

8:31 am-9:55 pm

1 stop11h 24m

Toronto Pearson Intl

Mon 9/14

1:30 pm-12:10 pm

2 stops48h 40m

$356

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Wed 9/9

9:16 pm-8:55 pm

2 stops21h 39m

Toronto Pearson Intl

Mon 9/14

4:45 pm-10:35 pm

1 stop7h 50m

$356

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 9/3

9:10 am-8:09 pm

1 stop8h 59m

Toronto Pearson Intl

Wed 9/9

6:40 pm-8:17 pm

Nonstop3h 37m

$510

Quickest round-trip

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Sat 9/12

11:35 am-4:45 pm

Nonstop3h 10m

Toronto Pearson Intl

Sat 9/19

8:55 am-10:32 am

Nonstop3h 37m

$511

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 9/3

6:05 pm-11:17 pm

Nonstop3h 12m

Toronto Pearson Intl

Wed 9/9

8:45 am-10:22 am

Nonstop3h 37m

$512

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Sat 9/12

5:30 am-1:42 pm

1 stop6h 12m

Toronto Pearson Intl

Sat 9/12

4:18 pm-5:56 pm

Nonstop3h 38m

$585

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Sat 10/24

6:00 am-1:42 pm

1 stop5h 42m

Toronto Pearson Intl

Sat 10/24

4:18 pm-5:56 pm

Nonstop3h 38m

$585

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Sat 10/10

11:59 pm-1:47 pm

1 stop11h 48m

Toronto Pearson Intl

Sun 10/11

4:18 pm-5:56 pm

Nonstop3h 38m

$585

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?

The month of October is, on average, the cheapest month to fly to Region of Ontario from Denver, with most prices found around $501. If you aren’t able to travel during the month of October, then book flights to Region of Ontario from Denver during September instead. Flights to Region of Ontario in September, while not as cheap as those in October, still average around $518.

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 $705. 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 $801. 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 $704. 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 $785.

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 $580 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 $425 on momondo.

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

There are 4 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.

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	$286
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 $286. The best round-trip flight deal from Denver to Region of Ontario found on momondo in the last 72 hours is $598.

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 are refreshed on a daily basis.
How many operators does momondo search for flights from Denver Intl Airport to Ontario?
There are 2 operators available for flights from Denver Intl Airport to Ontario as of July 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 29.61% of all bookings. The subsequent popular models are Airbus A220-300 at 24.61%, Airbus A220 at 13.02%, and Airbus A320-100/200 at 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 $203	Free Cancellation	Rating 7.1 11,408 reviews		Search Air Canada flights
United Airlines	PriceFrom $225	Free Cancellation	Rating 7.4 10,049 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.