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

American Airlines, Air Canada, and Delta 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 79 per week as of April 2026. The most frequent departure day is Thu, with 16% of weekly flights leaving on this day.

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

As of April 2026, 11 flights take off from Denver and land in Region of Ontario each day. The most common flight departure time for this route is 1:00PM, with 63% of daily flights taking off in the afternoon.

What airlines fly to Region of Ontario?

Air Canada, United Airlines and Delta 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 61% 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.

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 4 operators available for flights from Denver Intl Airport to Ontario as of April 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.

$95 Cheap Flights from Denver to Ontario in 2026

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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.

10:29 pm - 1:05 am

DEN

YYZ

24h 36m

2 stops

4:45 pm - 10:37 pm

YYZ

DEN

7h 52m

1 stop

$277Multiple Airlines

mié., may. 6 - lun., may. 11

2:40 pm - 9:55 pm

DEN

YYZ

29h 15m

1 stop

4:45 pm - 10:37 pm

YYZ

DEN

7h 52m

1 stop

$288Multiple Airlines

mar., may. 5 - lun., may. 11

6:10 am - 5:45 am

DEN

YYZ

21h 35m

2 stops

4:45 pm - 10:37 pm

YYZ

DEN

7h 52m

1 stop

$291Multiple Airlines

jue., may. 7 - lun., may. 11

10:29 pm - 6:55 am

DEN

YYZ

30h 26m

2 stops

9:45 am - 9:27 pm

YYZ

DEN

13h 42m

1 stop

$294Multiple Airlines

mar., jun. 2 - lun., jun. 8

12:15 pm - 11:45 pm

DEN

YUL

9h 30m

1 stop

8:00 pm - 11:20 am

YUL

DEN

17h 20m

1 stop

$438WestJet

dom., abr. 26 - mar., abr. 28

12:15 pm - 5:35 am

DEN

YOW

15h 20m

1 stop

4:15 pm - 11:20 am

YOW

DEN

21h 05m

1 stop

$474WestJet

vie., may. 15 - mar., jun. 2

12:15 pm - 5:35 am

DEN

YOW

15h 20m

1 stop

4:15 pm - 11:20 am

YOW

DEN

21h 05m

1 stop

$475WestJet

vie., may. 15 - mar., jun. 2

12:15 pm - 5:15 pm

DEN

YHM

27h 00m

1 stop

6:10 pm - 11:20 am

YHM

DEN

19h 10m

1 stop

$480WestJet

lun., abr. 27 - sáb., may. 16

9:40 am - 9:40 pm

DEN

YXU

10h 00m

2 stops

3:30 pm - 8:22 pm

YXU

DEN

6h 52m

1 stop

$686Air Canada

vie., jul. 31 - dom., ago. 9

9:40 am - 9:40 pm

DEN

YXU

10h 00m

2 stops

5:40 am - 10:35 am

YXU

DEN

6h 55m

1 stop

$687Air Canada

vie., jul. 31 - dom., ago. 9

Air Canada flights from Denver to Region of Ontario

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

Air Canada

Apr 18

DEN1:25 pmDenver Intl

3h 10m

YYZ6:35 pmToronto Pearson Intl

Apr 25

YYZ2:50 pmToronto Pearson Intl

3h 48m

DEN4:38 pmDenver Intl

$445

Air Canada

Apr 20

DEN11:10 amDenver Intl

7h 20m

1 stop

YYZ8:30 pmToronto Pearson Intl

Apr 27

YYZ8:30 amToronto Pearson Intl

3h 48m

DEN10:18 amDenver Intl

$451

Air Canada

Apr 18

DEN11:10 amDenver Intl

7h 20m

1 stop

YYZ8:30 pmToronto Pearson Intl

Apr 25

YYZ2:50 pmToronto Pearson Intl

3h 48m

DEN4:38 pmDenver Intl

$453

American Airlines flights from Denver to Region of Ontario

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

American Airlines

Apr 20

DEN7:36 amDenver Intl

13h 53m

1 stop

YYZ11:29 pmToronto Pearson Intl

May 28

YYZ3:10 pmToronto Pearson Intl

10h 49m

1 stop

DEN11:59 pmDenver Intl

$491

American Airlines

May 9

DEN5:44 pmDenver Intl

16h 00m

1 stop

YUL11:44 amMontreal Pierre Elliott Trudeau Intl

Jun 3

YUL12:30 pmMontreal Pierre Elliott Trudeau Intl

13h 29m

1 stop

DEN11:59 pmDenver Intl

$504

American Airlines

Apr 20

DEN6:19 amDenver Intl

15h 10m

1 stop

YYZ11:29 pmToronto Pearson Intl

May 28

YYZ3:10 pmToronto Pearson Intl

10h 49m

1 stop

DEN11:59 pmDenver Intl

$512

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

mié. 5/6

10:29 pm-1:05 am

2 stops24h 36m

Toronto Pearson Intl

lun. 5/11

4:45 pm-10:37 pm

1 stop7h 52m

$277

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

mar. 5/5

2:40 pm-9:55 pm

1 stop29h 15m

Toronto Pearson Intl

lun. 5/11

4:45 pm-10:37 pm

1 stop7h 52m

$288

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

jue. 5/7

6:10 am-5:45 am

2 stops21h 35m

Toronto Pearson Intl

lun. 5/11

4:45 pm-10:37 pm

1 stop7h 52m

$291

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

mar. 6/2

10:29 pm-6:55 am

2 stops30h 26m

Toronto Pearson Intl

lun. 6/8

9:45 am-9:27 pm

1 stop13h 42m

$294

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

dom. 4/26

12:15 pm-11:45 pm

1 stop9h 30m

Montreal Pierre Elliott Trudeau Intl

mar. 4/28

8:00 pm-11:20 am

1 stop17h 20m

$438

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

vie. 5/15

12:15 pm-5:35 am

1 stop15h 20m

Ottawa

mar. 6/2

4:15 pm-11:20 am

1 stop21h 05m

$474

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

vie. 5/15

12:15 pm-5:35 am

1 stop15h 20m

Ottawa

mar. 6/2

4:15 pm-11:20 am

1 stop21h 05m

$475

DenverHamilton

DEN - YHM

DENYHM

Denver Intl

lun. 4/27

12:15 pm-5:15 pm

1 stop27h 00m

Hamilton

sáb. 5/16

6:10 pm-11:20 am

1 stop19h 10m

$480

Quickest round-trip

DenverLondon

DEN - YXU

DENYXU

Denver Intl

vie. 7/31

9:40 am-9:40 pm

2 stops10h 00m

London

dom. 8/9

3:30 pm-8:22 pm

1 stop6h 52m

$686

DenverLondon

DEN - YXU

DENYXU

Denver Intl

vie. 7/31

9:40 am-9:40 pm

2 stops10h 00m

London

dom. 8/9

5:40 am-10:35 am

1 stop6h 55m

$687

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 September is, on average, the cheapest month to fly to Region of Ontario from Denver, with most prices found around $458. If you aren’t able to travel during the month of September, then book flights to Region of Ontario from Denver during October instead. Flights to Region of Ontario in October, while not as cheap as those in September, still average around $490.

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 $616. 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 $804. 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 $685. 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 $706.

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 $548 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 $406 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	$323
Fastest flight time	3h 10m
Direct flights	Every day
Airports in Region of Ontario	123 airports

The best one-way flight to Region of Ontario from Denver in the past 72 hours is $323. The best round-trip flight deal from Denver to Region of Ontario found on momondo in the last 72 hours is $686.

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 123 airports in Region of Ontario. From Denver there are direct flights to 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 4 operators available for flights from Denver Intl Airport to Ontario as of April 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 43.82% of all bookings. The subsequent popular models are Airbus A220-300 at 26.65%, Boeing 787 Dreamliner at 7.80%, and Boeing 777 at 4.92%.

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 $81	Free Cancellation	Rating 7.1 10,907 reviews	Search Air Canada flights
Delta	PriceFrom $198	Free Cancellation	Rating 7.9 8,392 reviews	Search Delta flights
United Airlines	PriceFrom $218	Free Cancellation	Rating 7.4 9,555 reviews	Search United Airlines flights
WestJet	PriceFrom $258	Free Cancellation	Rating 7.2 3,317 reviews	Search WestJet 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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Popular cities in Ontario

Flights to Torontofrom $150

Flights to Vancouverfrom $143

Flights to Montrealfrom $200

Flights to Calgaryfrom $197

Flights to Ottawafrom $192

Flights to Halifaxfrom $242

Flights to Winnipegfrom $265

Flights to Québec Cityfrom $280

Flights to Saskatoonfrom $277

Flights to Kelownafrom $209

Flights to St. John'sfrom $377

Flights to Reginafrom $333

Cheap flights from Denver to Ontario from $95

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 5/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Air Canada flights from Denver to Region of Ontario

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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 to Region of Ontario?

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

What is the cheapest airline that flies 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?

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

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