C$ 229 Find Cheap Flights from Toronto to Colorado

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Toronto to Colorado departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Colorado

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Toronto to Colorado, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Toronto to Colorado, as well as popular online travel agencies
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Flights Deals

Best Colorado Flight Deals from Toronto

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Denver
DenverdirectC$ 401
Denver
DenverdirectC$ 401

Cheap Flights from Toronto to Colorado

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Toronto to Colorado that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Toronto to Colorado

Fri, 15 Aug - Sun, 17 Aug
Air Canada Logo
8:40 a.m. - 10:20 a.m.YYZ-DEN
3h 40mdirect
Air Canada Logo
7:45 a.m. - 12:58 p.m.DEN-YYZ
3h 13mdirect
C$ 401Air Canada
Find Deal
Fri, 15 Aug - Sun, 17 Aug
Air Canada Logo
6:20 p.m. - 8:00 p.m.YYZ-DEN
3h 40mdirect
Air Canada Logo
7:05 p.m. - 8:20 a.m.DEN-YYZ
11h 15m1 stop
C$ 406Air Canada
Find Deal
Sun, 7 Sep - Fri, 12 Sep
WestJet Logo
6:30 a.m. - 6:48 p.m.YYZ-DEN
14h 18m1 stop
WestJet Logo
12:15 p.m. - 12:22 a.m.DEN-YYZ
10h 07m1 stop
C$ 422WestJet
Find Deal
Mon, 11 Aug - Mon, 18 Aug
 Logo
4:00 p.m. - 9:03 a.m.YYZ-DEN
19h 03m1 stop
 Logo
8:25 a.m. - 6:52 a.m.DEN-YYZ
20h 27m2 stops
C$ 425
Find Deal
Sat, 16 Aug - Sat, 23 Aug
WestJet Logo
10:25 p.m. - 11:27 a.m.YYZ-DEN
15h 02m1 stop
WestJet Logo
12:15 p.m. - 12:24 a.m.DEN-YYZ
10h 09m1 stop
C$ 437WestJet
Find Deal
Fri, 15 Aug - Sat, 16 Aug
 Logo
11:00 a.m. - 11:56 p.m.YYZ-DEN
14h 56m1 stop
 Logo
11:58 p.m. - 2:29 p.m.DEN-YYZ
12h 31m1 stop
C$ 448
Find Deal
Thu, 18 Sep - Mon, 22 Sep
American Airlines Logo
1:25 p.m. - 11:39 p.m.YYZ-COS
12h 14m1 stop
American Airlines Logo
6:02 a.m. - 10:50 p.m.COS-YYZ
14h 48m1 stop
C$ 466American Airlines
Find Deal
Tue, 29 Jul - Tue, 5 Aug
United Airlines Logo
5:15 p.m. - 11:52 p.m.YYZ-COS
8h 37m2 stops
United Airlines Logo
12:55 p.m. - 10:48 p.m.COS-YYZ
7h 53m1 stop
C$ 470United Airlines
Find Deal
Thu, 18 Sep - Mon, 22 Sep
American Airlines Logo
6:30 a.m. - 11:33 a.m.YYZ-COS
7h 03m1 stop
American Airlines Logo
6:02 a.m. - 6:30 p.m.COS-YYZ
10h 28m2 stops
C$ 587American Airlines
Find Deal
Mon, 25 Aug - Mon, 1 Sep
United Airlines Logo
9:44 a.m. - 8:39 p.m.YYZ-COS
12h 55m1 stop
United Airlines Logo
3:45 p.m. - 9:58 a.m.COS-YYZ
16h 13m2 stops
C$ 597United Airlines
Find Deal
Useful Info

KAYAK's insights & trends for Toronto to Colorado flights

Get data-powered insights and trends into flights from Toronto to Colorado to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Toronto Pearson Intl Airport to Colorado flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Toronto Pearson Intl Airport to Colorado.

The cheapest ticket to Colorado from Toronto Pearson Intl Airport found in the last 72 hours was to Denver, at C$ 436 round-trip. The most popular route is from Toronto Pearson Intl Airport (YYZ) to Denver (DEN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was C$ 436.

Can I save money by flying with a layover from Toronto Pearson Intl Airport to Colorado?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at C$ 1,163 on average.

What is the cheapest month to fly from Toronto Pearson Intl Airport to Colorado?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Toronto Pearson Intl Airport to Colorado, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Toronto Pearson Intl Airport to Colorado is September, when tickets cost C$ 579 (return) on average. On the other hand, the most expensive months are December and February, when the average cost of round-trip tickets is C$ 741 and C$ 703 respectively.

What’s the cheapest day of the week to fly from Toronto to Colorado?

The average price of all round-trip flights from Toronto Pearson Intl Airport to Colorado clicked on KAYAK for each day over the last 12 months.

When flying from Toronto to Colorado, you should consider leaving on a Friday and avoid Mondays if you are looking for the best rates. For your return to Toronto, you’ll find the best rates on Thursdays and the most expensive ones on Fridays.

How far in advance should I book a flight from Toronto Pearson Intl Airport to Colorado?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Toronto Pearson Intl Airport to Colorado, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on the flight from Toronto Pearson Intl Airport to Colorado, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.


Good to know

Low seasonNovember
High seasonJune
Cheapest flightC$ 229
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly (18% more expensive on average)
Flight from Toronto Pearson Airport to Denver

Flights from Toronto to Colorado: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from Toronto to Colorado 
F.Flew with United AirlinesYYZ-DENAug 2024
Make sure to check the airline delay flights rate and if you have important commitments choose another airline.
JoshuaFlew with Air CanadaYYZ-DENApr 2024
Toronto's customs was one of the faster experiences I've had. They opened four more lanes to expedite the process when the lane got too long, to ensure we would all get through within around 15 minutes. The public transportation within the city is also top notch, in my opinion.

FAQs - booking Colorado flights

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

    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 Toronto to Colorado.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Toronto to Colorado 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 Toronto to Colorado?

    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 Toronto to Colorado 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 Toronto to Colorado?

    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 Toronto to Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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

    The cheapest time of day to fly to Colorado is generally in the afternoon, when round-trip flights cost C$ 431 on average. Morning departures are around 1% more expensive than evening flights, on average. The most expensive time of day to fly to Colorado is generally in the morning, which is peak travel time and where the average cost of a ticket is C$ 575.

Reviews of the top 4 airlines serving from Toronto to Colorado

 
See real verified KAYAK customer reviews for airlines flying from Toronto to Colorado. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Toronto to Colorado? 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.
7.4
United AirlinesOverall score based on 8861 reviews
7.7Boarding
7.0Entertainment
7.3Comfort
6.6Food
8.1Crew
Airline reviews

It was all good flight was on time, service was good I enjoyed a few movies and everything was smooth

10.0 ExcellentAnonymous, Jul 2025YYZ - SFO
Read more United Airlines reviews

It was all good flight was on time, service was good I enjoyed a few movies and everything was smooth

Very rough getting into denver. my kid threw up it was so rough.

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

Efficient, calm when things were delayed and kept us regularly informed of what was happening.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

Flight attendant moved my bag without notifying me and was rude to me when I asked him about it. There was no reason to move it.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Plane temperature was comfortable (not to hot) when boarding and waiting for takeoff.

We tried to upgrade to economy premium but were told this was not possible as we had booked through United Airlines (and Air Canada was operating the flight). This seemed silly given there was ample space in economy premium. Additionally, we had to wait almost 1.5 hours upon arrival to taxi to the gate. Otherwise, the crew were very pleasant and passengers were friendly.

Generally good. However. The flight left 30 mins behind schedule with no reason given.

Flight delayed, missed my pick-up had to Uber, plus missed dinner and medication, so sad!

WestJet canceled my booking, replaced it with a booking that didn't work (departing from cruise ship), and didn't offer any flights that did work. Their only option was for me to cancel and go to another airline for more money. Which I did.

Nothing to like because my inbound flight was cancelled without notification by West Jet or third party, JustFly. I couldn’t take the inbound flight due to cancellation; therefore could not take the outbound flight back.

The seats are totally uncomfortable making the flight less than pleasant. The cookies & pretzels were terrible!!!

Not the greatest experience everything was pretty mediocre. My seat was by the washroom in the aisle and was not located well as everyone past each other people were right in my seat and space.

The small prop plane was crowded and the overhead luggage storage is a smaller than on the jets. Other than that, the crew was good, the flight was on time and the landing was smooth.

There was a medical emergency that the crew handled very well. There was no “entertainment” of any sort-no movie/music/whatever. Food was typical of airlines: mediocre.

Late departure, so I missed connection in Detroit. But Delta gave me a great hotel & breakfast. Just sorry I could not get anything from my checked baggage.

Crew was friendly. Lost our luggage and told us it’d be in later in the evening of the day we returned. It was not. Still after 5 days have not received it.

In a nutshell, my bag, the one I have to pay for, because now you can’t even bring a carry on, did not make it. I am still waiting for an update. The fact that not only were have to pay for it, but on top of that we are stuck without getting it, it’s ridiculous..

This was an excellent experience for a very short flight.

No space in overhead bin, one cookie, 2 oz of juice - is not customer service.

Somebody either kayak or Air Canada booked my flight under my preferred name Betty instead of my legal name and I almost was denied boarding my flight

The ground staff was so rude in Toronto airport ...very rude and did not answer simple questions, and made me look like a fool. Very rude ground staff.

My flight got delayed 5 times and then got cancelled eventually, I had to get a hotel and uber and pay for food for an extra night without any plans. It was a horrible experience, instead of Air Canada, I was flying with United .

I had a nice flight with free wifi. So I was able to message family members and stream music during my flight, which made the trip go by fast. I also enjoyed flying on there Airbus A220. The plane looked very new and it also got up to speed fast down the runway and didn't need much runway to get airborne.

Overall good experience. The flight from Toronto to Denver does not have entertainment - movies to watch.

Ensure prepaid food arrangements are appropriately understood by flight crew of who purchased and who did not

All was fine. Weather was a bit stormy, but nothing kayak can do about that! 😊

Flight was late. Missed connecting in Denver. My new flight is more than 24 hours later and I have no room, vouchers, or compensation, and might also be bumped from the one tomorrow.

This was one of the first frontier airline flights this spring that wasn't delayed. It actually left on time. Some of the flight crew did not look happy, they didn't smile when the passengers were boarding or getting off the plane, and the passengers initiated greetings, not the staff. To me this was an odd experience to have with any flight/airline. I had a bad experience booking this flight. The price didn't solidify until late hours into the night. Ever time I purchased the ticket, I either received a denial email or an error because the price has changed, but it was never reflected on the flyfrontier or kayak websites until way after midnight on the date of travel. This caused me anxiety and irritation with the websites. Then I noticed a mishap with my name on my voucher as I went to check in, it was incorrect. When I proceeded to correct it, Frontier had no easy, let alone free, way to remedy it. I couldn't correct my name without a $75 charge, I couldn't cancel my voucher to repurchase it with the correct name without a $100 charge, because it was too close to departure. Then calling frontier was nearly impossible to remedy the situation with a human. It's already difficult to want to choose frontier because of all the upcharges, but you feel kinda trapped into doing so because it's the more affordable airline.

Our flight was cancelled. They could do nothing to help us get another flight that was timely. Because the first leg was cancelled we were unable to get to our connection. We had to book on an entirely different airline for today. So we spent more money, lost a day of vacation and will never fly Frontier again, so the 'we are sorry, here is $100 credit' is a joke since we won't be flying on Frontier.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.

The plane failed preflight inspection, so we sat there for 90 mins while they tried to fix it. Ultimately, everything was remedied and we made our connecting flight; instead of a 2 hour layover at the airport, we spent it waiting on the plane.

I loked walking out on the tarmac to board and no first class. I didn't like that they have no snacks or onboard wifi to bide your time.

The seats were extremely hard and uncomfortable. It was disappointing even for a budget airline.

Delayed each time on a round trip with no significant weather interference. Updates to flight times came after the fact. 30 min behind in boarding and board and phone still show an on time departure. Some mysterious extra 300 miles that came so surprising they had to fuel while we were already on board?

Our flight was canceled for no known reason. We weren’t told until we were checking in at 5:00 am. This was after our last flight with Frontier where we sat on the plane for three hours (not an exaggeration) before we took off because of a mechanical issue. We won’t be flying Frontier again.

Everything you need to know for your flight from Toronto to Colorado

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