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$126+ Cheap flights from Colorado 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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — YYZ
nov. 5 — nov. 121
mar. 11/5
mar. 11/12
1 adult, Economy
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Find flight deals from Colorado to Ontario

Cheapest flights from Colorado to Ontario
Explore the most affordable flight options available from Colorado to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 31, 2024.

This Kiwi.com deal was found by Cheapflights users on 10/29. 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. 12/37:39 pmDEN - YYZ
1 stop8h 03mMultiple Airlines
mié. 12/118:00 pmYYZ - DEN
1 stop15h 29mMultiple Airlines
Deal found 10/29$262
This Kiwi.com deal was found by Cheapflights users on 10/30. 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.
lun. 11/256:48 pmDEN - YUL
1 stop19h 47mMultiple Airlines
mar. 12/35:35 pmYUL - DEN
1 stop17h 54mMultiple Airlines
Deal found 10/30$316
This Kiwi.com deal was found by Cheapflights users on 10/30. 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. 12/48:55 pmDEN - YTZ
1 stop15h 12mMultiple Airlines
vie. 12/61:10 pmYTZ - DEN
2 stops13h 31mMultiple Airlines
Deal found 10/30$320
This Air Canada deal was found by Cheapflights users on 10/31. 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.
jue. 11/286:00 pmDEN - YOW
1 stop8h 57mAir Canada
jue. 12/510:05 amYOW - DEN
1 stop8h 33mAir Canada
Deal found 10/31$331
This United Airlines deal was found by Cheapflights users on 10/30. 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. 11/237:20 pmDEN - YOW
1 stop13h 11mUnited Airlines
mar. 11/265:30 amYOW - DEN
1 stop6h 58mUnited Airlines
Deal found 10/30$336
This American Airlines deal was found by Cheapflights users on 10/31. 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. 12/54:10 pmDEN - YUL
1 stop19h 34mAmerican Airlines
lun. 12/97:30 amYUL - DEN
1 stop16h 18mAmerican Airlines
Deal found 10/31$452
This United Airlines deal was found by Cheapflights users on 10/30. 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.
mié. 12/116:00 amCOS - YYZ
1 stop7h 02mUnited Airlines
mié. 12/115:30 pmYYZ - COS
1 stop6h 10mUnited Airlines
Deal found 10/30$466
This Delta deal was found by Cheapflights users on 10/30. 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.
lun. 12/1610:31 amDEN - YYZ
1 stop10h 19mDelta
sáb. 1/47:00 amYYZ - DEN
1 stop11h 30mDelta
Deal found 10/30$474
This Gotogate deal was found by Cheapflights users on 10/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/235:40 pmDEN - YYZ
Nonstop3h 12mAir Canada
lun. 11/252:45 pmYYZ - DEN
Nonstop3h 53mAir Canada
Deal found 10/30$481
This Kiwi.com deal was found by Cheapflights users on 10/31. 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. 11/2712:21 amDEN - YOW
1 stop15h 03mMultiple Airlines
jue. 12/54:05 pmYOW - DEN
2 stops25h 45mMultiple Airlines
Deal found 10/31$483
This American Airlines deal was found by Cheapflights users on 10/30. 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. 12/37:20 amDEN - YYZ
1 stop12h 09mAmerican Airlines
mar. 12/1711:37 amYYZ - DEN
1 stop12h 59mAmerican Airlines
Deal found 10/30$486
This Delta deal was found by Cheapflights users on 10/30. 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.
lun. 11/256:00 amDEN - YOW
2 stops16h 10mDelta
jue. 11/285:55 amYOW - DEN
2 stops13h 42mDelta
Deal found 10/30$530

Find flights from Colorado to Ontario within your budget

Customize your flight search to find flights from Colorado 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 2,570,725 searches. Data last updated octubre 31, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

lun. 11/18

10:43 pm-4:35 pm

1 stop15h 52m

$138

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

lun. 11/11

5:40 pm-1:37 am

1 stop5h 57m

$145

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

lun. 11/11

11:59 pm-1:23 pm

2 stops11h 24m

$154

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

mar. 1/14

7:00 am-7:13 pm

1 stop10h 13m

$188

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

dom. 1/12

7:00 am-10:46 pm

1 stop13h 46m

$193

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

jue. 2/13

2:49 pm-2:55 pm

2 stops22h 06m

$265

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

jue. 11/21

11:20 pm-2:20 pm

2 stops13h 00m

$140

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

mar. 12/24

2:00 pm-11:43 pm

1 stop7h 43m

$283

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

dom. 11/24

11:59 pm-6:40 pm

2 stops16h 41m

$181

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

lun. 11/25

7:00 am-5:35 pm

1 stop8h 35m

$216

Flights are sorted by cheapest first

Deals found on 10/29

Showing 1-10 of 47 results
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Best time to book a flight from Colorado to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Colorado 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 Colorado to Ontario

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

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

Currently, January is the cheapest month in which you can book a flight from Colorado to Region of Ontario (average of $242). Flying from Colorado 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 CO to ON?

Find hourly flight availability from Colorado 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 octubre 31, 2024.

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

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 octubre 31, 2024.
Read through reviews of airlines operating flights from Colorado to Ontario, such as 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
9,420 reviews

Overall

8.0

Food

7.2

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Crew

8.6

Reviews

1 / 10

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

Alaska Airlines
8.0
Very good
9,420 reviews
Alaska Airlines
8.0
Very good
9,420 reviews

Overall

8.0

Food

7.2

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Crew

8.6

Reviews

1 / 10

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

Delta
8.0
Very good
8,835 reviews
Alaska Airlines
8.0
Very good
9,420 reviews

Overall

8.0

Food

7.2

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Crew

8.6

Reviews

1 / 10

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

United Airlines
7.4
Good
9,240 reviews
Alaska Airlines
8.0
Very good
9,420 reviews

Overall

8.0

Food

7.2

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Crew

8.6

Reviews

1 / 10

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

WestJet
7.3
Good
2,804 reviews
Alaska Airlines
8.0
Very good
9,420 reviews

Overall

8.0

Food

7.2

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Crew

8.6

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
9,420 reviews

Overall

8.0

Food

7.2

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Crew

8.6

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 Colorado to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Colorado to Region of Ontario for under $300 on Cheapflights?

    Yes, there are multiple flights from Colorado to Region of Ontario for under $300. The cheapest flight booked recently is on Multiple Airlines for just $262, but on average you can expect to pay $500.

  • Are there nonstop flights from Colorado to Region of Ontario for under $500 on Cheapflights?

    Cheapflights has at least 7 direct flights from Colorado to Region of Ontario under $500. A good price for a nonstop flight from Colorado to Region of Ontario is less than $722.

  • Are there last-minute flights available from Colorado to Region of Ontario for under $400?

    There are currently 14+ open flights from Colorado to Region of Ontario within the next 7 days for less than $400.

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

    The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $145. However, be on the lookout for offers from United Airlines and Delta, as they are both options that can get you from Colorado to Region of Ontario for a low price.

  • What does DEN to YYZ mean?

    Great question - DEN to YYZ just means Denver Intl Airport to Toronto Pearson Intl Airport. Now you’ll know what these unique codes when you look for flights! While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: Ottawa Airport (YOW), Toronto Island Airport (YTZ), London Airport (YXU), Hamilton Airport (YHM), Toronto Region of Waterloo Intl Airport (YKF).

  • Can I find deals for flights from Colorado to Ontario that include extra baggage allowance?

    The amount of baggage you can bring on your Colorado to Ontario flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Colorado to Ontario with specific airlines?

    Yes, Cheapflights allows you to browse and filter Colorado to Ontario flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Colorado 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.

  • Can I find deals for flights from Colorado to Ontario that allow pets onboard?

    Many airlines flying from Colorado to Ontario offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Colorado to Ontario?

    Yes, you can often find last-minute deals on Colorado to Ontario flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Colorado to Region of Ontario flight deals updated?

    The Colorado to Region of Ontario flight deals you see on this page were last updated on 10/31.

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

    Currently, January is the cheapest month in which you can book a flight from Colorado to Region of Ontario (average of $242). Flying from Colorado 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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Top 2 airlines flying from Colorado to Ontario

Discover the top 2 airlines that operate flights from Colorado 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 2,570,725 searches. Data last updated octubre 31, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$130Average$469FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$160Average$557FlexibilityNo cancel feeOn-time69%
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