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$158+ Cheap flights from Ontario to Colorado

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 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — DEN
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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Cheap flight deals from Ontario to Colorado

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (CAON) to Colorado (USCO). 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 November 20, 2024.

Find flight deals from Ontario to Colorado

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

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.
Tue 12/178:35 amYYZ - COS
1 stop10h 42mUnited Airlines
Tue 12/247:00 amCOS - YYZ
1 stop13h 52mUnited Airlines
Deal found 11/19$262
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/255:30 amYOW - DEN
1 stop6h 58mUnited Airlines
Wed 12/48:50 pmDEN - YOW
1 stop11h 41mUnited Airlines
Deal found 11/20$283
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.
Tue 12/171:25 pmYUL - COS
2 stops24h 00mUnited Airlines
Tue 12/248:15 amCOS - YUL
1 stop6h 53mUnited Airlines
Deal found 11/19$285
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.
Tue 12/1711:08 amYUL - COS
2 stops12h 49mMultiple Airlines
Tue 12/2410:55 amCOS - YUL
2 stops12h 58mMultiple Airlines
Deal found 11/19$290
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/235:30 amYOW - DEN
2 stops9h 10mAir Canada
Fri 11/299:42 amDEN - YOW
2 stops11h 50mAir Canada
Deal found 11/20$324
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.
Thu 12/56:15 amYYZ - COS
2 stops11h 32mAmerican Airlines
Wed 12/114:41 pmCOS - YYZ
2 stops16h 15mAmerican Airlines
Deal found 11/19$340
This Kiwi.com deal was found by Cheapflights users on 11/18. 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.
Fri 12/137:00 amYYZ - DEN
1 stop19h 41mMultiple Airlines
Tue 12/1711:17 pmDEN - YYZ
1 stop10h 28mMultiple Airlines
Deal found 11/18$345
This Kiwi.com deal was found by Cheapflights users on 11/18. 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.
Tue 12/32:00 pmYTZ - DEN
2 stops21h 29mMultiple Airlines
Tue 12/108:55 pmDEN - YTZ
1 stop15h 52mMultiple Airlines
Deal found 11/18$356
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.
Tue 12/174:05 pmYOW - DEN
2 stops24h 11mMultiple Airlines
Sun 1/126:00 amDEN - YOW
1 stop8h 50mMultiple Airlines
Deal found 11/20$363
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/255:55 amYOW - DEN
2 stops13h 42mDelta
Wed 12/48:05 amDEN - YOW
2 stops14h 05mDelta
Deal found 11/20$366
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/36:15 amYYZ - COS
2 stops15h 20mDelta
Tue 12/101:44 pmCOS - YYZ
1 stop8h 15mDelta
Deal found 11/20$369
This Air Canada deal was found by Cheapflights users on 11/18. 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.
Fri 12/138:35 amYYZ - DEN
Nonstop3h 53mAir Canada
Sun 12/155:40 pmDEN - YYZ
Nonstop3h 12mAir Canada
Deal found 11/18$372

Find flights from Ontario to Colorado within your budget

Customize your flight search to find flights from Ontario to Colorado 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 November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

TorontoColorado Springs

YYZ - COS

YYZCOS

Toronto Pearson Intl

Tue 12/17

8:35 am-5:17 pm

1 stop10h 42m

Colorado Springs

Tue 12/24

7:00 am-10:52 pm

1 stop13h 52m

$262

TorontoColorado Springs

YYZ - COS

YYZCOS

Toronto Pearson Intl

Thu 1/16

4:10 pm-9:58 pm

1 stop7h 48m

Colorado Springs

Thu 1/30

7:30 am-3:02 pm

1 stop5h 32m

$270

TorontoColorado Springs

YYZ - COS

YYZCOS

Toronto Pearson Intl

Thu 1/16

6:10 am-12:09 pm

1 stop7h 59m

Colorado Springs

Thu 1/30

6:00 am-7:04 pm

2 stops11h 04m

$279

MontrealColorado Springs

YUL - COS

YULCOS

Montreal Pierre Elliott Trudeau Intl

Tue 12/17

1:25 pm-11:25 am

2 stops24h 00m

Colorado Springs

Tue 12/24

8:15 am-5:08 pm

1 stop6h 53m

$285

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Fri 12/6

7:30 pm-12:15 am

1 stop6h 45m

Denver Intl

Mon 12/9

8:50 pm-10:31 am

1 stop11h 41m

$286

MontrealColorado Springs

YUL - COS

YULCOS

Montreal Pierre Elliott Trudeau Intl

Tue 12/17

11:08 am-9:57 pm

2 stops12h 49m

Colorado Springs

Tue 12/24

10:55 am-1:53 am

2 stops12h 58m

$290

MontrealColorado Springs

YUL - COS

YULCOS

Montreal Pierre Elliott Trudeau Intl

Tue 1/28

11:20 am-9:06 pm

2 stops11h 46m

Colorado Springs

Fri 1/31

6:00 am-9:06 pm

2 stops13h 06m

$301

MontrealColorado Springs

YUL - COS

YULCOS

Montreal Pierre Elliott Trudeau Intl

Tue 1/28

9:00 am-6:53 pm

2 stops11h 53m

Colorado Springs

Sun 2/2

1:35 pm-1:53 am

2 stops10h 18m

$306

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Fri 1/3

8:00 pm-3:54 am

1 stop9h 54m

Denver Intl

Thu 1/9

1:20 pm-5:55 am

1 stop14h 35m

$344

TorontoDenver

YTZ - DEN

YTZDEN

Toronto Island

Tue 12/3

2:00 pm-9:29 am

2 stops21h 29m

Denver Intl

Tue 12/10

8:55 pm-2:47 pm

1 stop15h 52m

$356

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 60 results
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Best time to book a flight from Ontario to Colorado

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

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

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

Currently, October is the cheapest month in which you can book a flight from Region of Ontario to Colorado (average of $197). Flying from Region of Ontario to Colorado in March is currently the most expensive (average of $270). 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 ON to CO?

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

When flying from Region of Ontario to Colorado, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Region of Ontario to Colorado

Explore weekly flight availability from Ontario to Colorado. 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 November 20, 2024.

The most flights from CAON to USCO 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 Colorado by month

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

In terms of precipitation, rainfall in Colorado ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Colorado when rainfall is around 0.5 in.

Temperature in Colorado by month

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

If weather is an important factor for your trip to Colorado, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated November 20, 2024.
Read reviews from past customers who have flown Air Canada, Delta and American Airlines from Ontario to Colorado. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,461 reviews

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Food

7.2

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

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Food

7.2

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

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Food

7.2

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

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Food

7.2

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

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Food

7.2

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

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.1

Food

7.2

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

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

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $158. However, be on the lookout for offers from Delta and Air Canada, as they are both options that can get you from Region of Ontario to Colorado for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Colorado 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 Region of Ontario to Colorado?

    Currently, October is the cheapest month in which you can book a flight from Region of Ontario to Colorado (average of $197). Flying from Region of Ontario to Colorado in March is currently the most expensive (average of $270). 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 Ontario to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Ontario to Colorado

Discover the top 2 airlines that operate flights from Ontario to Colorado. 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 November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$249Average$426FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$254Average$495FlexibilityNo cancel feeOn-time67%
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