C$ 130 Find Cheap Flights from Colorado to Ontario

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Good to know

Low seasonApril
High seasonMay
Cheapest flightC$ 130
Best time to beat the crowds but there is an average 13% increase in price.
Most popular time to fly (2% more expensive on average)
Flight from Denver to Toronto Pearson Airport

FAQs for booking flights from Colorado to Ontario

  • How does KAYAK find such low prices on flights from Colorado to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Colorado to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Colorado to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Colorado to Ontario is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Colorado to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Colorado to Ontario with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Colorado to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Colorado to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in Ontario?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Ontario is Toronto Pearson Intl Airport (YYZ), with an average flight price of C$ 394.

  • What is the cheapest day to fly to Ontario?

    Based on KAYAK data, the cheapest day to fly to Ontario is Monday when round-trip tickets can be as cheap as C$ 526. On the other hand, the most expensive day to fly is Friday, when round-trip prices are C$ 786 on average.

  • What is the cheapest time of day to fly to Ontario?

    The cheapest time of day to fly to Ontario is generally in the afternoon, when round-trip flights cost C$ 325 on average. Morning departures are around 40% more expensive than evening flights, on average. The most expensive time of day to fly to Ontario is generally in the morning, which is peak travel time and where the average cost of a ticket is C$ 529.

  • What is the cheapest flight to Ontario?

    The cheapest ticket to Ontario from Colorado found in the last 72 hours was to Toronto Pearson Intl Airport, at C$ 359 round-trip. The most popular route is Denver (DEN) to Toronto Pearson Intl Airport (YYZ) and the cheapest round-trip airline ticket found on this route in the last 72 hours was C$ 359.

  • What is the cheapest month to fly from Colorado to Ontario?

    The cheapest month for flights from Colorado to Ontario is February, when tickets cost C$ 399 (return) on average. On the other hand, the most expensive months are August and April, when the average cost of round-trip tickets is C$ 777 and C$ 749 respectively.

  • How far in advance should I book a flight from Colorado to Ontario?

    To get a below-average price on the flight from Colorado to Ontario, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

  • How long is the flight to Ontario?

    An average direct flight from Colorado to Ontario takes 7h 17m, covering a distance of 3646 km. The shortest route is Denver (DEN) to Toronto Pearson Intl Airport (YYZ) with an average flight time of 3h 06m.

  • What are the most popular destinations in Ontario?

    Based on KAYAK flight searches, the most popular destination is Toronto (96% of total searches to Ontario). The next most popular destinations are Ottawa (4%) and London (0%).

Top airline flying from Colorado to Ontario

Need help choosing which airline to fly with from Colorado to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.0
Air CanadaOverall score based on 9254 reviews
7.3Boarding
7.0Comfort
6.8Entertainment
6.3Food
7.8Crew
Airline reviews

2.5 hour delay sitting in the plane on the tarmac, you tell me how the experience was

2.0 MediocreKamini, Apr 2025ORD - YYZ
Read more Air Canada reviews

2.5 hour delay sitting in the plane on the tarmac, you tell me how the experience was

I hope these comments will find their way to AC customer experience team. Me and my spouse 50 years of aged coming back from 7 days perfect vacation... While boarding in FLL flight AC1621, one of the boarding agents (tall aged african american) man literelly yeld at my wife during the picture talking process. MAM ! STEP !! BACK !!! We are not illegal immegrants beying deported, nor are we in the millitary. We are customers returning home. This was unacceptable. While boarding in YYZ flight AC1154, one of the boarding agents (tall aged caucasian) man criticied with several complesant remarks my passport condition saying that I could not travel intl with it due to stain, decoloration, and BLOOD. My passport does not have blood on it! Yes it might be in less than perfect condition, but their are ways to talk to customer that does not imply not allow a boarding agent to be angry fathery like, or a custom agent looking at a suspicious individual. Both experience were less than acceptable for might I remind you a paying CUSTOMER returning home.

This flight didn't happen for me because of overbooking.

Terrible experience, flight was delayed both ways. Limited compensation for the 5+ hour delay. Will not be flying Air Canada Rouge, and don’t recommend you do either.

The boarding was relatively quick, the crew welcoming and flight uneventful. The omission of meals on all airlines is unacceptable especially when the flight is during a mealtime such as this one, (lunchtime), is unacceptable.

Everything was simple and easy. The lady at the gate was super friendly, I wish I had her name to share. She's a little older, dark-haired. You can tell she likes her job and would be a great influence on any young people training with her.

No Charging ports for personal electronics, which were required to use wifi entertainment.

Rushed, the boarding was a great deal like a Chinese fire drill.

it was red eye flight, it was ok, there was beverage service, thats it i didnt care much as i wanted to sleep

Everything went smoothly. I appreciate the selection of free movies.

Book cheap flights from Colorado to Ontario

Recent round-trip flight deals

6/6Fri
1 stopWestJet
8h 32mDEN-YYZ
8/6Sun
1 stopWestJet
9h 52mYYZ-DEN
C$ 330
17/5Sat
1 stopWestJet
10h 11mDEN-YYZ
20/5Tue
1 stopWestJet
15h 02mYYZ-DEN
C$ 343
27/6Fri
1 stop
8h 39mDEN-YYZ
1/7Tue
2 stops
18h 01mYYZ-DEN
C$ 437
2/7Wed
1 stop
13h 59mDEN-YTZ
5/7Sat
1 stop
10h 38mYTZ-DEN
C$ 439
18/9Thu
1 stopSun Country Air
15h 43mDEN-YYZ
21/9Sun
1 stopSun Country Air
10h 13mYYZ-DEN
C$ 468
22/8Fri
1 stopSun Country Air
15h 31mDEN-YYZ
25/8Mon
1 stopSun Country Air
11h 13mYYZ-DEN
C$ 485
7/6Sat
1 stopUnited Airlines
5h 11mCOS-YYZ
14/6Sat
1 stopUnited Airlines
5h 31mYYZ-COS
C$ 551
6/6Fri
2 stopsUnited Airlines
7h 23mCOS-YYZ
14/6Sat
1 stopUnited Airlines
6h 53mYYZ-COS
C$ 564
7/9Sun
directAir Canada
3h 46mDEN-YUL
11/9Thu
directAir Canada
4h 13mYUL-DEN
C$ 677
2/8Sat
directAir Canada
3h 10mDEN-YYZ
5/8Tue
directAir Canada
3h 40mYYZ-DEN
C$ 691

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Recent one-way flight deals

31/5Sat
1 stopWestJet
8h 41mDEN-YYZ
C$ 130
28/5Wed
2 stopsWestJet
10h 20mDEN-YYZ
C$ 134
30/5Fri
2 stopsWestJet
10h 20mDEN-YYZ
C$ 135
7/7Mon
1 stop
9h 47mDEN-YTZ
C$ 199
11/7Fri
1 stop
9h 47mDEN-YTZ
C$ 203
28/6Sat
1 stopSun Country Air
21h 43mDEN-YYZ
C$ 243
9/6Mon
1 stopAir Canada
9h 51mDEN-YUL
C$ 294
9/6Mon
1 stopAir Canada
9h 51mDEN-YUL
C$ 298
19/6Thu
1 stopAmerican Airlines
14h 07mDEN-YYZ
C$ 301
9/6Mon
2 stopsAmerican Airlines
9h 44mDEN-YUL
C$ 374

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Last minute flights from Colorado to Ontario

Last minute flight, train and bus deals

6/5Tue
multi-stop
29h 18mDEN-YYZ
9/5Fri
multi-stop
9h 29mYYZ-DEN
C$ 927
3/5Sat
multi-stop
25h 35mDEN-YYZ
13/5Tue
multi-stop
9h 29mYYZ-DEN
C$ 945
1/5Thu
multi-stopAir Canada
7h 26mCOS-YUL
11/5Sun
multi-stopAir Canada
9h 46mYUL-COS
C$ 952
1/5Thu
multi-stopAir Canada
7h 26mCOS-YUL
11/5Sun
multi-stopAir Canada
10h 21mYUL-COS
C$ 962
1/5Thu
multi-stopUnited Airlines
19h 55mCOS-YUL
11/5Sun
multi-stopUnited Airlines
8h 24mYUL-COS
C$ 1,009
6/5Tue
multi-stopUnited Airlines
14h 45mDEN-YUL
16/5Fri
multi-stopUnited Airlines
24h 20mYUL-DEN
C$ 1,060
3/5Sat
multi-stopAmerican Airlines
14h 46mDEN-YUL
24/5Sat
multi-stopAmerican Airlines
10h 10mYUL-DEN
C$ 1,118
3/5Sat
multi-stopDelta
7h 30mDEN-YYZ
7/5Wed
multi-stopDelta
10h 29mYYZ-DEN
C$ 1,209
3/5Sat
multi-stopDelta
8h 25mDEN-YYZ
7/5Wed
multi-stopDelta
10h 29mYYZ-DEN
C$ 1,223
4/5Sun
multi-stopAmerican Airlines
9h 45mDEN-YUL
7/5Wed
multi-stopAmerican Airlines
10h 03mYUL-DEN
C$ 1,441

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Everything you need to know for your flight to Ontario

Cabin class types available on flights to Colorado

Cabin classes available on flights to Colorado. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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