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$113+ Cheap flights from Denver (DEN) to Ontario

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/18. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — YYZ
nov. 25 — dic. 21
lun. 11/25
lun. 12/2
1 adult, Economy
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Cheap flight deals from Denver to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Ontario (CAON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated noviembre 20, 2024.

Find flight deals from Denver to Ontario

Cheapest flights from Denver to Ontario
Explore the most affordable flight options available from Denver to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 20, 2024.

This Kiwi.com deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/187:05 pmDEN - YYZ
2 stops16h 50mMultiple Airlines
mar. 1/77:25 pmYYZ - DEN
1 stop16h 04mMultiple Airlines
Deal found 11/20$294
This Trip.com deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/107:00 amDEN - YUL
2 stops23h 58mMultiple Airlines
mar. 12/175:35 pmYUL - DEN
1 stop12h 19mMultiple Airlines
Deal found 11/20$298
This United deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/237:20 pmDEN - YOW
1 stop13h 11mMultiple Airlines
lun. 11/255:45 amYOW - DEN
1 stop6h 50mMultiple Airlines
Deal found 11/19$340
This Air Canada deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/3011:25 amDEN - YOW
1 stop5h 33mAir Canada
dom. 12/85:30 amYOW - DEN
1 stop6h 58mAir Canada
Deal found 11/19$341
This Kiwi.com deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/108:55 pmDEN - YTZ
1 stop15h 52mMultiple Airlines
jue. 12/122:00 pmYTZ - DEN
2 stops21h 29mMultiple Airlines
Deal found 11/19$355
This United Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/238:25 pmDEN - YOW
1 stop12h 06mUnited Airlines
lun. 11/259:45 amYOW - DEN
2 stops12h 00mUnited Airlines
Deal found 11/19$360
This Booking.com deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/126:00 pmDEN - YYZ
1 stop10h 09mAir Canada
dom. 12/158:35 amYYZ - DEN
Nonstop3h 53mAir Canada
Deal found 11/19$485
This American Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/316:50 amDEN - YUL
1 stop14h 00mAmerican Airlines
mié. 1/82:20 pmYUL - DEN
1 stop21h 03mAmerican Airlines
Deal found 11/19$495
This American Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/126:53 amDEN - YYZ
1 stop9h 31mAmerican Airlines
mié. 12/181:14 pmYYZ - DEN
1 stop11h 22mAmerican Airlines
Deal found 11/19$559
This Justfly.com deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/305:59 pmDEN - YUL
1 stop27h 44mWestJet
mié. 1/86:00 amYUL - DEN
1 stop9h 16mWestJet
Deal found 11/19$572
This Alaska Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/312:45 pmDEN - YYZ
2 stops24h 10mAlaska Airlines
mar. 12/104:20 pmYYZ - DEN
2 stops21h 29mAlaska Airlines
Deal found 11/19$575
This Delta deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/306:00 amDEN - YOW
2 stops16h 10mDelta
dom. 12/85:55 amYOW - DEN
2 stops13h 39mDelta
Deal found 11/19$613

Find flights from Denver to Ontario within your budget

Customize your flight search to find flights from Denver to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated noviembre 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

mié. 1/8

7:00 am-6:46 am

1 stop21h 46m

Toronto Pearson Intl

mié. 1/15

7:10 am-3:58 pm

1 stop10h 48m

$269

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

mar. 12/10

7:00 am-8:58 am

2 stops23h 58m

Montreal Pierre Elliott Trudeau Intl

mar. 12/17

5:35 pm-3:54 am

1 stop12h 19m

$298

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

sáb. 11/30

11:25 am-6:58 pm

1 stop5h 33m

Ottawa

dom. 12/8

5:30 am-10:28 am

1 stop6h 58m

$341

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

lun. 1/13

7:00 am-5:33 am

2 stops20h 33m

Ottawa

lun. 1/20

6:10 pm-9:27 am

1 stop17h 17m

$352

DenverToronto

DEN - YTZ

DENYTZ

Denver Intl

mar. 12/10

8:55 pm-2:47 pm

1 stop15h 52m

Toronto Island

jue. 12/12

2:00 pm-9:29 am

2 stops21h 29m

$355

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

mié. 5/14

12:15 pm-12:43 am

1 stop10h 28m

Montreal Pierre Elliott Trudeau Intl

mié. 5/21

5:30 pm-11:27 am

1 stop19h 57m

$428

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

jue. 2/6

2:07 pm-3:05 pm

2 stops22h 58m

Toronto Pearson Intl

lun. 2/10

4:20 pm-10:36 pm

1 stop32h 16m

$430

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

vie. 1/17

8:06 am-10:45 pm

1 stop12h 39m

Montreal Pierre Elliott Trudeau Intl

lun. 1/20

7:14 am-6:07 pm

1 stop12h 53m

$463

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

jue. 12/12

6:00 pm-6:09 am

1 stop10h 09m

Toronto Pearson Intl

dom. 12/15

8:35 am-10:28 am

Nonstop3h 53m

$485

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

mié. 12/18

8:00 am-11:54 pm

1 stop13h 54m

Ottawa

mié. 12/25

5:30 am-10:28 am

1 stop6h 58m

$518

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 45 results
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Best time to book a flight from Denver to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Denver with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Denver to Ontario

Get recent, data-driven insights about flights from Denver to Ontario including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Denver to Region of Ontario?

Currently, January is the cheapest month in which you can book a flight from Denver to Region of Ontario (average of $242). Flying from Denver to Region of Ontario in July is currently the most expensive (average of $359). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DEN to ON?

Find hourly flight availability from Denver to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated noviembre 20, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Denver to Region of Ontario as you normally would.

Weekly flight availability from Denver to Region of Ontario

Explore weekly flight availability from Denver to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated noviembre 20, 2024.

The most flights from DEN to CAON are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Region of Ontario ranges from 2.0 - 3.3 inches per month. June is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Region of Ontario when rainfall is around 2.0 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Region of Ontario, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated noviembre 20, 2024.
To help decide which airline to fly from Denver to Ontario, see what other customers have to say about United Airlines, Alaska Airlines and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,461 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.2

Entertainment

7.1

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Alaska Airlines
8.0
Very good
9,461 reviews
Alaska Airlines
8.0
Very good
9,461 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.2

Entertainment

7.1

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Delta
8.0
Very good
8,756 reviews
Alaska Airlines
8.0
Very good
9,461 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.2

Entertainment

7.1

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

United Airlines
7.4
Good
9,171 reviews
Alaska Airlines
8.0
Very good
9,461 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.2

Entertainment

7.1

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

WestJet
7.3
Good
2,811 reviews
Alaska Airlines
8.0
Very good
9,461 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.2

Entertainment

7.1

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,461 reviews

Comfort

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Food

7.2

Entertainment

7.1

Reviews

1 / 10

Service was good. We pre-ordered a snack but never made it to us.

Related info for your journey

Find useful and relevant information for your journey from Denver to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Denver to Ontario?

    If you book a flight to Ontario from Denver, you will be flying from Denver Intl, which is the city’s only airport. Denver Intl (DEN) is located 18.5 mi from the center of Denver.

  • What are the cheapest airlines to fly from Denver to Region of Ontario one-way?

    $149 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Air Canada and American Airlines, with prices starting from $154 and $202, respectively.

  • What are the most popular routes from Denver to Region of Ontario?

    The most popular route from Denver to Region of Ontario is Denver Intl - Toronto Pearson Intl. You may also consider Denver Intl - Montreal Pierre Elliott Trudeau Intl or Denver Intl - Toronto Island.

  • What are the most reliable airlines from Denver to Region of Ontario?

    The top 3 most reliable airlines when flying from Denver to Region of Ontario are Air Canada (83%), United Airlines (83%) and Austrian Airlines (81%).

  • What are the cheapest flights from Denver to Region of Ontario?

    Looking for the cheapest flight from Denver to Region of Ontario? While on average our users pay $1,109, our data indicates the cheapest price to be $252. The most popular route (Denver Intl - Toronto Pearson Intl), is priced around $303.

  • Can I find deals for flights from Denver to Ontario that include hotel bookings?

    Yes. In addition to deals on Denver to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Ontario.

  • Can I find deals for business class flights from Denver to Ontario?

    Yes. Cheapflights offers flight deals from Denver to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Denver to Region of Ontario?

    Currently, January is the cheapest month in which you can book a flight from Denver to Region of Ontario (average of $242). Flying from Denver to Region of Ontario in July is currently the most expensive (average of $359). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Denver to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Vancouver Intl flights
Denver to Pearson Intl flights
Denver to Calgary flights
Denver to Abbotsford flights
Denver to Pierre Elliott Trudeau Intl flights
Denver to Kelowna flights
Denver to Victoria flights
Denver to Toronto Island flights
Denver to Edmonton flights
Denver to Winnipeg flights
Denver to Québec City flights
Denver to Ottawa flights
Montrose to Vancouver Intl flights
Grand Junction to Vancouver Intl flights
Colorado Springs to Pearson Intl flights
Denver to Whitehorse flights
Denver to Yellowknife flights
Vail to Vancouver Intl flights
Denver to Region of Waterloo Intl flights
Vail to Pearson Intl flights
Colorado Springs to Pierre Elliott Trudeau Intl flights
Denver to St. John's flights
Colorado Springs to Victoria flights
Colorado Springs to Calgary flights
Colorado Springs to Vancouver Intl flights
Denver to Halifax flights
Denver to Regina flights
Durango to Calgary flights
Colorado Springs to Ottawa flights
Aspen to Vancouver Intl flights
Denver to Charlottetown flights
Grand Junction to Thunder Bay flights
Grand Junction to Calgary flights
Denver to Saskatoon flights
Hayden to Calgary flights
Colorado Springs to Winnipeg flights
Denver to Terrace flights
Denver to Cranbrook flights
Denver to Sydney flights
Denver to Moncton flights
Denver to Fredericton flights
Colorado Springs to St. John's flights
Durango to Pearson Intl flights
Colorado Springs to Québec City flights
Aspen to Halifax flights
Montrose to Calgary flights
Grand Junction to Edmonton flights
Denver to Smithers flights

Top 2 airlines flying from Denver to Ontario

Discover the top 2 airlines that operate flights from Denver to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated noviembre 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$195Average$525FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$230Average$542FlexibilityNo cancel feeOn-time69%
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