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Cheap flights from Colorado to Ontario from C$ 136

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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — YYZ
23 Dec — 30 Dec1
1 adult

Cheap flight deals from Colorado to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Colorado (USCO) 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 18 December 2024.

Round-trip from

C$ 354

One-way from

C$ 136
29/1-3/2
  • 29/1-3/2
  • 2 total stops
  • 38h 13m total
  • Colorado to Ontario
Search Deals
6/2
  • 6/2
  • 2 total stops
  • 13h 31m total
  • Colorado to Ontario
Search Deals

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 18 December 2024.

Tue 31/127:00 a.m.COS - YYZ
1 stop13h 52mUnited Airlines
Mon 6/18:35 a.m.YYZ - COS
1 stop15h 28mUnited Airlines
Deal found 17/12C$ 457
Mon 30/1210:21 p.m.DEN - YUL
1 stop16h 14mMultiple Airlines
Tue 7/15:35 p.m.YUL - DEN
1 stop17h 54mMultiple Airlines
Deal found 17/12C$ 544
Wed 25/1210:21 p.m.DEN - YOW
2 stops24h 25mMultiple Airlines
Fri 10/16:10 p.m.YOW - DEN
1 stop17h 19mMultiple Airlines
Deal found 17/12C$ 638
Thu 26/125:30 a.m.DEN - YYZ
2 stops15h 43mMultiple Airlines
Mon 13/18:00 p.m.YYZ - DEN
1 stop15h 29mMultiple Airlines
Deal found 17/12C$ 666
Sun 29/1212:29 a.m.DEN - YTZ
2 stops18h 05mMultiple Airlines
Wed 1/13:55 p.m.YTZ - DEN
1 stop10h 25mMultiple Airlines
Deal found 16/12C$ 818
Tue 31/126:28 a.m.DEN - YUL
2 stops14h 22mAmerican Airlines
Wed 8/17:14 a.m.YUL - DEN
1 stop8h 21mAmerican Airlines
Deal found 17/12C$ 888
Fri 27/1211:25 a.m.DEN - YOW
1 stop5h 33mAir Canada
Wed 8/16:10 a.m.YOW - DEN
1 stop6h 25mAir Canada
Deal found 17/12C$ 1,001
Sun 29/127:50 a.m.DEN - YOW
1 stop11h 34mUnited Airlines
Mon 6/110:30 a.m.YOW - DEN
1 stop9h 55mUnited Airlines
Deal found 17/12C$ 1,023
Thu 26/124:19 p.m.DEN - YUL
1 stop5h 24mWestJet
Wed 8/16:00 a.m.YUL - DEN
1 stop6h 31mWestJet
Deal found 17/12C$ 1,070
Tue 31/127:00 p.m.DEN - YUL
1 stop10h 15mAir Canada
Tue 7/18:05 a.m.YUL - DEN
Nonstop4h 30mAir Canada
Deal found 17/12C$ 1,104
Sun 29/127:15 a.m.DEN - YUL
1 stop8h 33mDelta
Fri 10/15:15 p.m.YUL - DEN
1 stop18h 58mDelta
Deal found 17/12C$ 1,140
Mon 30/126:00 p.m.DEN - YYZ
1 stop13h 58mUnited Airlines
Wed 1/12:45 p.m.YYZ - DEN
Nonstop3h 53mUnited Airlines
Deal found 16/12C$ 1,171

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 629,999 searches. Data last updated 18 December 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Wed 29/1

6:00 a.m.-6:46 a.m.

1 stop22h 46m

Toronto Pearson Intl

Mon 3/2

8:00 p.m.-9:27 a.m.

1 stop15h 27m

C$ 354

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Sun 19/1

10:42 p.m.-4:45 p.m.

1 stop16h 03m

Ottawa

Wed 22/1

6:10 p.m.-11:21 p.m.

1 stop31h 11m

C$ 414

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

Wed 8/1

10:29 p.m.-4:35 p.m.

1 stop16h 06m

Montreal Pierre Elliott Trudeau Intl

Wed 22/1

6:45 a.m.-11:21 p.m.

2 stops18h 36m

C$ 428

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Tue 31/12

7:00 a.m.-10:52 p.m.

1 stop13h 52m

Toronto Pearson Intl

Mon 6/1

8:35 a.m.-10:03 p.m.

1 stop15h 28m

C$ 457

DenverToronto

DEN - YTZ

DENYTZ

Denver Intl

Wed 29/1

6:00 a.m.-6:53 p.m.

2 stops10h 53m

Toronto Island

Mon 3/2

11:20 a.m.-8:12 p.m.

1 stop10h 52m

C$ 473

Colorado SpringsMontreal

COS - YUL

COSYUL

Colorado Springs

Tue 14/1

9:23 a.m.-9:17 p.m.

2 stops9h 54m

Montreal Pierre Elliott Trudeau Intl

Tue 21/1

6:00 a.m.-11:34 a.m.

1 stop7h 34m

C$ 514

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

Sun 1/6

12:15 p.m.-12:43 a.m.

1 stop10h 28m

Montreal Pierre Elliott Trudeau Intl

Sun 8/6

5:30 p.m.-11:27 a.m.

1 stop19h 57m

C$ 611

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 6/2

7:05 a.m.-8:28 p.m.

1 stop11h 23m

Toronto Pearson Intl

Mon 10/2

6:15 a.m.-4:34 p.m.

1 stop12h 19m

C$ 630

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Tue 15/4

12:44 p.m.-2:40 p.m.

1 stop23h 56m

Toronto Pearson Intl

Thu 17/4

4:30 p.m.-11:58 p.m.

1 stop33h 28m

C$ 637

DenverMontreal

DEN - YUL

DENYUL

Denver Intl

Thu 23/1

10:15 a.m.-10:45 p.m.

1 stop10h 30m

Montreal Pierre Elliott Trudeau Intl

Sun 26/1

4:00 p.m.-9:25 p.m.

1 stop7h 25m

C$ 691

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/12

Showing 1-10 of 45 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, October is the cheapest month in which you can book a flight from Colorado to Region of Ontario (average of C$ 178). Flying from Colorado to Region of Ontario in July is currently the most expensive (average of C$ 258). 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 18 December 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.

Weekly flight availability from Colorado to Region of Ontario

Explore weekly flight availability from Colorado 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 18 December 2024.

The most flights from USCO to CAON are scheduled on a Monday (7 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (5 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 51.0 - 83.0 mm per month. June is typically the wettest month, when rainfall can reach 83.0 mm. February is typically the driest time to visit Region of Ontario when rainfall is around 51.0 mm.

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 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -6.0 C).

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 18 December 2024.
Get a feel of what it's like to fly with United Airlines, Delta and Air Canada from Colorado to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,552 reviews
Check prices

Comfort

7.9

Entertainment

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.2

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Alaska Airlines
8.0
Very good
9,552 reviews
Alaska Airlines
8.0
Very good
9,552 reviews
Check prices

Comfort

7.9

Entertainment

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.2

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Delta
8.0
Very good
8,604 reviews
Alaska Airlines
8.0
Very good
9,552 reviews
Check prices

Comfort

7.9

Entertainment

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.2

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

United Airlines
7.4
Good
9,059 reviews
Alaska Airlines
8.0
Very good
9,552 reviews
Check prices

Comfort

7.9

Entertainment

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.2

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

WestJet
7.3
Good
2,818 reviews
Alaska Airlines
8.0
Very good
9,552 reviews
Check prices

Comfort

7.9

Entertainment

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.2

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,552 reviews
Check prices

Comfort

7.9

Entertainment

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.2

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

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.

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

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as C$ 191. Users have also found prices from C$ 213 and C$ 269 on WestJet and Sun Country Air, respectively.

  • 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.

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

    Currently, October is the cheapest month in which you can book a flight from Colorado to Region of Ontario (average of C$ 178). Flying from Colorado to Region of Ontario in July is currently the most expensive (average of C$ 258). 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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See prices for flight routes from nearby airports that may be better suited for you.
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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 629,999 searches. Data last updated 18 December 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 254AverageC$ 714FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 754AverageC$ 1,088FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Colorado to Ontario?

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Can Cheapflights find flights from Colorado to Ontario with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Colorado to Ontario flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Colorado to Ontario become cheaper?

Not ready to book yet? You can track prices for flights from Colorado to Ontario on Cheapflights with our Price Alert feature and get notified when better prices are available.

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