$146 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 3/4. 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, 0 bags

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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Flight Deals

Book Cheap Toronto to Colorado Plane Tickets

 
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

Sat, Feb 28 - Mon, Mar 9
Alaska Airlines Logo
4:45 pm - 11:59 pm
YYZ
-
DEN
33h 14m
2 stops
Alaska Airlines Logo
7:52 pm - 3:35 pm
DEN
-
YYZ
17h 43m
1 stop
$368Alaska Airlines
Mon, Feb 23 - Sun, Mar 8
Alaska Airlines Logo
4:45 pm - 5:48 pm
YYZ
-
DEN
27h 03m
2 stops
Alaska Airlines Logo
7:00 am - 3:35 pm
DEN
-
YYZ
30h 35m
1 stop
$370Alaska Airlines
Sat, May 23 - Wed, Jun 3
WestJet Logo
10:25 pm - 11:25 am
YYZ
-
DEN
15h 00m
1 stop
WestJet Logo
12:15 pm - 10:52 pm
DEN
-
YYZ
8h 37m
1 stop
$371WestJet
Thu, Mar 19 - Thu, Mar 26
Multiple Airlines Logo
8:00 pm - 3:56 am
YYZ
-
DEN
9h 56m
1 stop
Multiple Airlines Logo
10:39 am - 7:00 am
DEN
-
YYZ
18h 21m
2 stops
$374Multiple Airlines
Mon, Mar 2 - Wed, Mar 4
Air Canada Logo
12:30 pm - 7:55 pm
YTZ
-
DEN
9h 25m
1 stop
Air Canada Logo
11:15 am - 9:35 pm
DEN
-
YTZ
8h 20m
1 stop
$375Air Canada
Thu, Feb 12 - Mon, Feb 16
Air Canada Logo
2:50 pm - 4:40 pm
YYZ
-
DEN
3h 50mnonstop
Air Canada Logo
11:15 am - 9:44 pm
DEN
-
YYZ
8h 29m
1 stop
$376Air Canada
Tue, Feb 17 - Fri, Feb 20
United Airlines Logo
4:10 pm - 6:10 pm
YYZ
-
DEN
4h 00mnonstop
United Airlines Logo
2:04 pm - 11:46 pm
DEN
-
YYZ
7h 42m
1 stop
$378United Airlines
Mon, Feb 9 - Fri, Feb 13
Multiple Airlines Logo
8:50 am - 4:22 pm
YTZ
-
DEN
9h 32m
1 stop
Multiple Airlines Logo
7:48 am - 8:00 pm
DEN
-
YTZ
10h 12m
1 stop
$382Multiple Airlines
Sat, Feb 28 - Wed, Mar 4
United Airlines Logo
6:45 am - 10:55 am
YYZ
-
COS
6h 10m
1 stop
United Airlines Logo
1:40 pm - 11:59 pm
COS
-
YYZ
8h 19m
2 stops
$404United Airlines
Thu, May 14 - Tue, May 19
WestJet Logo
6:10 pm - 11:25 am
YHM
-
DEN
19h 15m
1 stop
WestJet Logo
12:15 pm - 5:10 pm
DEN
-
YHM
26h 55m
1 stop
$494WestJet
Booking Insights

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 to Colorado flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Colorado from Toronto found in the last 72 hours was to Denver, at $341 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 $341.

Can I save money by flying with a layover from Toronto 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.

No, with an average price for the route of $543, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Toronto to Colorado?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Toronto 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 to Colorado is November, when tickets cost $394 (return) on average. On the other hand, the most expensive months are March and December, when the average cost of round-trip tickets is $541 and $512 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 to Colorado clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Colorado on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Toronto to Colorado. For your return ticket, we recommend flying on a Thursday and avoiding Mondays for the best deals.

How far in advance should I book a flight from Toronto 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 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 to Colorado, you should book around 4 weeks before departure, which saves you about 55% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$154
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Toronto Pearson Airport to Denver

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

Insights shared by verified travelers who flew the route from Toronto to Colorado 
F.Flew with United Airlines
YYZ
-
DEN
Aug 2024
Make sure to check the airline delay flights rate and if you have important commitments choose another airline.
JoshuaFlew with Air Canada
YYZ
-
DEN
Apr 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

  • What are common layovers for a flight from Toronto to Colorado?

    Flights from Toronto to Colorado—specifically to Denver International Airport (DEN), which is the main airport serving the state—often include layovers at major U.S. hubs. Common stopover airports could be Chicago O'Hare International Airport (ORD), Dallas/Fort Worth International Airport (DFW), or Minneapolis−Saint Paul International Airport (MSP), depending on the airline and route chosen.

  • Which airport should I fly into if I'm visiting Colorado?

    For most travelers, Denver International Airport (DEN) is the primary gateway to Colorado, offering the most comprehensive access to the state, including to the Rocky Mountains and ski resorts. If you're visiting cities like Colorado Springs or the southern parts of the state, you might consider flying into Colorado Springs Airport (COS).

  • Do I need a visa to fly from Toronto to Colorado?

    Canadian citizens do not require visas to enter the United States for short visits, such as tourism, business, or while in transit, for up to 90 days. However, you will need to provide a valid passport. It's advisable to also have proof of your ESTA (Electronic System for Travel Authorization) approval if you're traveling under the Visa Waiver Program. For non-Canadian citizens, visa requirements will depend on your nationality and the reason for your visit.

  • How can I make my flight from Toronto to Colorado more sustainable?

    To make your flight from Toronto to Colorado more sustainable, consider flying with an airline like Air Canada, which is recognized for its commitment to sustainability. Booking a nonstop flight from Toronto Pearson International Airport (YYZ) to Denver International Airport (DEN) with Air Canada can help reduce your carbon footprint. This is because nonstop flights avoid the extra fuel consumption associated with multiple takeoffs and landings. Air Canada operates modern, fuel-efficient aircraft and offers carbon offsetting programs, allowing passengers to compensate for their flight's environmental impact.

  • 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 travelers 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 $470 on average. Morning departures are around 2% 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 $515.

Top tips for finding cheap flights to Colorado

  • Toronto travelers have the benefit of access to three primary airports: Toronto Pearson International Airport (YYZ), Billy Bishop Toronto Island Airport (YTZ), and Region of Waterloo International Airport (YKF). Toronto Pearson International Airport (YYZ) sees the most international flights, including those to Colorado, but there's potential for deals departing from YTZ or YKF on occasion.
  • Colorado, known for its ski resorts and scenic landscapes, offers several airport options. Denver International Airport (DEN) is the major hub, but if you're heading to popular ski destinations like Aspen, Vail, or Colorado Springs, there are local airports like Aspen-Pitkin County Airport (ASE) or Colorado Springs Airport (COS), respectively. Your final destination in Colorado should determine your ideal airport.
  • Familiarize yourself with the baggage policies of the airlines you're considering. Major carriers like Air Canada, United Airlines, or Delta might have different carry-on and checked-luggage allowances, especially when traversing international borders. A brief check of your airline's website or a quick call to customer service can save you unexpected fees or hassles.
  • Long flights can sometimes take a toll, especially when crossing multiple time zones. After securing your ticket, watch out for promotional emails from your airline. It might offer you a chance to upgrade to premium cabins at a fraction of the original cost, allowing you to enjoy perks like more legroom, superior meals, and a generally enhanced flying experience.
  • For those flying from Toronto to Colorado, airlines like Air Canada often provide special amenities to enhance the in-flight experience, especially on the longer routes. On flights from Toronto Pearson International Airport (YYZ) to destinations like Denver International Airport (DEN) in Colorado, Air Canada offers amenities such as complimentary headphones and blankets, ensuring a comfortable journey.

Reviews of the top 3 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 9175 reviews
7.1Entertainment
7.7Boarding
7.3Comfort
8.1Crew
6.6Food
Airline reviews

I just think it’s unfortunate that Airlines have completely abandoned the idea of serving any kind of decent or even real food on flights, not even on a four hour flight!? Those days are gone, I guess.

8.0 ExcellentAnonymous, Jan 2026
SJD - DEN
Read more United Airlines reviews

I just think it’s unfortunate that Airlines have completely abandoned the idea of serving any kind of decent or even real food on flights, not even on a four hour flight!? Those days are gone, I guess.

l really enjoy very much the flight was very pleasant

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Not good - outbound flight was delayed and missed my connection even though I got to the gate after running through the airport - the agent would not let me on because the door was closed (flight had not left). There was no notification from United - overall experience was very disappointing. Additionally, I was downgraded from first class to coach on the alternative flight

Quick and seamless boarding. No entertainment but fast Starlink wifi for this short trip and the staff was really friendly.

I dread trans-Pacific flights. They are very long. This was my first time on Universal, and it was my best crossing ever. The staff were professional, the hospitality was great, and the food was delicious. The entertainment system filled the long flight hours. I will seek out Universal flights from now onwards. 🙂

We Left Calgary 1/2 hour late and that made for a tight connection in Denver. After arriving everything was done to help us make our connection. That was a great effort. Thank You United

Efficient all round, very good crew. Short flight so the food, of course, was just snacks

Experience was good, the wifi hook up is somewhat tough

I will not be flying with westjet again. I was uncomfortable in my seat. The position made my back hurt so bad. My wife was able to fit the seatbelt around her with out an extension but was unable to put the tray table down or fit in the seat for that matter. Our bag was smashed and I spent two hours trying to fill out the application for a damaged bag before I gave up. The 80 photos I took would not work and nothing telling me the format to upload them as.. I made the mistake of unpacking the bag before taking photos so no claim for me. Next trip to Canada I will have to use air Canada.

My luggage was damaged 1 wheel was out I can't find it nowhere

Took 3 hours to check in and drop off our suitcases. Half of the passengers were still in line by boarding time. The computer systems and staff were very slow. Staff were also disorganized and kept allowing later flights to skip lines. Suitcases were piling on that several other passengers didn't get their suitcases. Then, we were sitting in the plane for 2 hours and were told that the flight was overbooked. We missed our connecting flight and had to fly the following day but with a stop over. Good thing ONE WestJet customer rep was pleasant and actually knew how to do her job when we wanted to rebook to a direct flight. Thank you to Kim at Toronto airport. Terrible experience at PUJ. Won't go back to Dominican Republic.

Great seats, super comfortable, but no in flight entertainment which was a let down

Airplane is too small. Crew, especially the flight attendant who looked after our area, was not at all friendly and a touch authoratative. She may have been the most gruff flight attendant i've come across in 40 years of business travel

I when to Jamaica for my dad funeral and I did not get my luggage from westjet . I add to buy clothes putting me financial debt i did no want to be in Westjet did not call me to apologize are to inquire about my luggage I am still angry about it

Ground staff was not helpful, but staff at the business counter were excellent.

I selected "carry-on" for a round trip on Kayak, but my return flight on WestJet did not include a carry-on and they would not allow me to add one. My only option was to add a "checked bag" which I had to wait for on the luggage carousel after landing. Not a good experience.

We landed 26 min early. It was awesome! Smooth ride too.

My seat was covered in vomit and I will be reaching out to Air Canada

It's kindof ridiculous that your system is even asking me about this since my flight was canceled and I wasn't rescheduled.

3 hr delay at the gate while they were doing maintenance. Next time, do not board passengers while maintenance is being performed

Digital check in is very poor with air canada compaired to other airlines

Baggage delayed we had to catch our cruise without any clothes 😒

Air Canada Rouge is great. Toronto Airport is the usual nightmare

Good but need to be better with the flight times.

The staff was great and made the long trip easy peasy!

The free Wi-fi for Aeroplan members was a great touch. The time passed quickly. I found the seats seemed a little closer together than I remember. Not Air Canada's fault, but we were about 20 minutes late landing because the airport was too busy. We had to circle around for a while. The boarding and disembarking went very smoothly.

Extremely turbulent landing. Crew was friendly and plane comfortable. Airport and US pre clearance was understaffed

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

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.