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$146+ Cheap flights from Toronto (YTO) to Denver (DEN)

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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
YTO — DEN
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Find cheap flights from Toronto to Denver with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheapflights Tip: The best prices from Toronto to Denver Intl are usually found in November or August, booked 85 days in advance, depart on a Friday or Thursday and return on a Thursday

Find flight deals from Toronto to Denver

Cheapest flights from Toronto to Denver
Explore the most affordable flight options available from Toronto to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/28. 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 12/127:55 pmYYZ - DEN
1 stop10h 03mMultiple Airlines
Wed 1/74:25 pmDEN - YYZ
1 stop13h 30mMultiple Airlines
Deal found 10/28$346
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/94:45 pmYYZ - DEN
1 stop27h 18mAlaska Airlines
Tue 1/68:22 pmDEN - YYZ
1 stop17h 13mAlaska Airlines
Deal found 10/28$350
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Sun 12/148:00 pmYYZ - DEN
1 stop9h 58mMultiple Airlines
Tue 1/611:59 pmDEN - YYZ
1 stop9h 47mMultiple Airlines
Deal found 10/28$351
This Flightnetwork deal was found by Cheapflights users on 10/28. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2012:30 pmYTZ - DEN
1 stop9h 25mAir Canada
Wed 11/2611:15 amDEN - YTZ
1 stop8h 20mAir Canada
Deal found 10/28$352
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Mon 11/177:55 pmYYZ - DEN
1 stop10h 04mMultiple Airlines
Mon 11/249:44 amDEN - YYZ
2 stops19h 14mMultiple Airlines
Deal found 10/28$352
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Thu 12/117:55 pmYYZ - DEN
1 stop10h 03mMultiple Airlines
Tue 1/611:59 pmDEN - YYZ
1 stop9h 47mMultiple Airlines
Deal found 10/28$353
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 11/2512:40 pmYYZ - DEN
1 stop17h 18mMultiple Airlines
Tue 12/210:50 amDEN - YYZ
2 stops35h 21mMultiple Airlines
Deal found 10/27$354
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Mon 12/11:30 pmYYZ - DEN
2 stops16h 28mMultiple Airlines
Sun 12/75:35 pmDEN - YYZ
1 stop10h 45mMultiple Airlines
Deal found 10/27$355
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 12/197:55 pmYYZ - DEN
1 stop10h 03mMultiple Airlines
Tue 1/611:59 pmDEN - YYZ
1 stop12h 17mMultiple Airlines
Deal found 10/27$356
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/84:45 pmYYZ - DEN
1 stop9h 14mAlaska Airlines
Tue 1/66:02 amDEN - YYZ
1 stop31h 33mAlaska Airlines
Deal found 10/28$358
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Wed 11/129:15 amYTZ - DEN
1 stop12h 44mMultiple Airlines
Thu 11/1312:59 amDEN - YTZ
2 stops15h 56mMultiple Airlines
Deal found 10/28$359
This Flightnetwork deal was found by Cheapflights users on 10/28. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/201:00 pmYYZ - DEN
1 stop8h 55mAir Canada
Wed 11/2611:15 amDEN - YYZ
1 stop8h 29mAir Canada
Deal found 10/28$359

Cheap flight deals from Toronto to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Toronto (YTO) to Denver (DEN). 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 October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$346
(Kiwi.com)

One-way from

$146
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$475

Good round-trip deal

$424 or less

Good one-way deal

$265 or less
Provider with most accurate pricing for Toronto (YTO)-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Toronto (YTO)-Denver Intl flights.
Search Deals
From Toronto (YTO) to Denver Intl
Search Deals
One-way flight from Toronto (YTO) to Denver Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($15 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals
Price to beat on a round-trip flight from Toronto (YTO) to Denver Intl.
Search Deals
Price to beat on a one-way flight from Toronto (YTO) to Denver Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Toronto to Denver 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 2,558,603 searches. Data last updated October 29, 2025.
Use the filters below to find and compare flights from Toronto to Denver that are best for you.

Fly from

Toronto

Fly to

Denver

Route

Depart

Return

Price

TorontoDenver

YTZ - DEN

YTZDEN

Toronto Island

Thu 11/20

12:30 pm-7:55 pm

1 stop9h 25m

Denver Intl

Wed 11/26

11:15 am-9:35 pm

1 stop8h 20m

$352

TorontoDenver

YTZ - DEN

YTZDEN

Toronto Island

Wed 11/12

9:15 am-7:59 pm

1 stop12h 44m

Denver Intl

Thu 11/13

12:59 am-6:55 pm

2 stops15h 56m

$359

TorontoDenver

YTZ - DEN

YTZDEN

Toronto Island

Fri 11/14

9:15 am-2:16 pm

1 stop7h 01m

Denver Intl

Mon 11/17

8:05 am-6:57 pm

1 stop8h 52m

$359

TorontoDenver

YTZ - DEN

YTZDEN

Toronto Island

Mon 11/24

9:15 am-5:22 pm

1 stop10h 07m

Denver Intl

Mon 12/1

8:45 pm-1:42 pm

1 stop14h 57m

$361

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Mon 12/8

4:45 pm-6:03 pm

1 stop27h 18m

Denver Intl

Fri 1/9

11:49 am-3:35 pm

2 stops25h 46m

$368

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Mon 12/8

4:45 pm-11:59 pm

1 stop9h 14m

Denver Intl

Tue 1/6

7:20 am-3:35 pm

2 stops30h 15m

$368

TorontoDenver

YTZ - DEN

YTZDEN

Toronto Island

Tue 12/2

7:40 pm-10:18 am

2 stops16h 38m

Denver Intl

Thu 12/4

8:45 pm-1:42 pm

1 stop14h 57m

$381

TorontoDenver

YTZ - DEN

YTZDEN

Toronto Island

Tue 11/25

12:30 pm-7:55 pm

1 stop9h 25m

Denver Intl

Tue 12/2

11:15 am-7:55 pm

1 stop6h 40m

$388

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Fri 1/9

4:10 pm-6:10 pm

Nonstop4h 00m

Denver Intl

Mon 1/12

5:30 pm-10:41 pm

Nonstop3h 11m

$395

TorontoDenver

YTZ - DEN

YTZDEN

Toronto Island

Wed 2/4

12:30 pm-7:55 pm

1 stop9h 25m

Denver Intl

Wed 2/11

11:15 am-9:35 pm

1 stop8h 20m

$398

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 60 results
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Compare providers for flights from Toronto to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Toronto to Denver in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Toronto-Denver flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Toronto-Denver flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Toronto-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Toronto-Denver flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Toronto-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Toronto to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Toronto 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.

Cheapflights Insights

Everything you need to know about your flight from Toronto to Denver

How far ahead should I book a flight from Toronto to Denver?

Use this chart to determine the optimal time to book a round-trip flight from Toronto to Denver. Price data was last updated on October 24, 2025.

To ensure you get the cheapest price possible for a flight from Toronto to Denver, you should look to book at least 85 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Toronto to Denver?

Currently, December is the cheapest month in which you can book a flight from Toronto to Denver (average of $220). Flying from Toronto to Denver in October is currently the most expensive (average of $324). 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 YTO to DEN?

Find hourly flight availability from Toronto to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 29, 2025.

When flying from Toronto to Denver, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 16% versus a flight in the afternoon.

How much does it cost to fly round-trip from Toronto to Denver?

The best insider tips for Toronto to Denver flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Toronto to Denver trip
Airlines
Air Canada

Economy Latitude includes priority check-in and two checked bags, enhancing travel convenience.


Preferred Seats offer up to four inches of extra space, ideal for taller travelers.

Read more about Air Canadaby Jessica Macdonald
United Airlines

Basic Economy allows a personal item only, no carry-on bags unless exceptions apply.


Economy Plus offers extra legroom seats towards the front of the economy cabin.

Read more about United Airlinesby Harriet Baskas
Airports
YYZ

Security lines at YYZ are efficient, with waits rarely exceeding 20 minutes. Arrive early to clear US customs before boarding.

Read more about YYZby Kaitlyn McInnis
DEN

Take the A Line train from DEN to Union Station for a 37-minute ride into downtown Denver, running every 15 minutes.

Read more about DENby Emily Zemler
Our travel experts
Jessica Macdonald

Jessica Macdonald

Expert on Air Canada

Jessica Macdonald

Jessica Macdonald

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Kaitlyn McInnis

Kaitlyn McInnis

Expert on YYZ

Kaitlyn McInnis

Kaitlyn McInnis

Kaitlyn is a guidebook author and travel writer splitting her time between Atlantic Canada and Istanbul, Türkiye. She has visited over fifty countries and all seven continents, so she is very familiar with many hotels, airports and airlines around the globe. But her favorite type of vacation is sunbathing by the sea with a good book in hand.

Read more
Emily Zemler

Emily Zemler

Expert on DEN

Emily Zemler

Emily Zemler

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated October 29, 2025.
See what other customers who have flown with United Airlines, WestJet, and Air Canada from Toronto to Denver have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,999 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
United Airlines
7.4
Good
8,999 reviews
United Airlines
7.4
Good
8,999 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
WestJet
7.2
Good
3,148 reviews
United Airlines
7.4
Good
8,999 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Air Canada
7.1
Good
10,372 reviews
United Airlines
7.4
Good
8,999 reviews

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.

Related info for your journey

Find useful and relevant information for your journey from Toronto to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Denver from Toronto?

    For a flight from Toronto to Denver, you will be flying into Denver Intl. Denver Intl (DEN) is just 18.5 mi from the center of the city. Denver Intl is the only Denver airport and it handles 3 inbound flights from Toronto per day. 2 airlines have flights to Denver Intl from Toronto on a regular basis.

  • How long is the flight from Toronto to Denver?

    A quick flight from Toronto to Denver can take about 9h 25m. Air Canada provides one of the quickest options available for as low as $352. Toronto and Denver are separated by a distance of 1322 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Toronto to Denver round-trip?

    According to our current data, Air Canada ($317), and United Airlines ($384) offers the cheapest pricing from Toronto to Denver. Air Canada is currently priced 30% below the average price you’ll pay for this route.

  • What are the most popular routes from Toronto to Denver?

    The most popular flight routes from Toronto to Denver are Toronto Pearson Intl - Denver Intl, Toronto Island - Denver Intl and Toronto Region of Waterloo Intl - Denver Intl.

  • What are the most reliable airlines from Toronto to Denver?

    Before booking your flight to Denver from Toronto, check out the most reliable airlines to get you to your destination on time: United Airlines (67%), Air Canada (65%), Brussels Airlines( 62%).

  • What are the cheapest flights from Toronto to Denver?

    Looking for the cheapest flight from Toronto to Denver? While on average our users pay $500, our data indicates the cheapest price to be $232. The most popular route (Toronto Pearson Intl - Denver Intl), is priced around $235.

  • Can I find deals for flights from Toronto to Denver that include hotel bookings?

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

  • How can I find direct flights from Toronto to Denver?

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

  • Can I find deals for business class flights from Toronto to Denver?

    Yes. Cheapflights offers flight deals from Toronto to Denver 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 Toronto to Denver?

    Currently, December is the cheapest month in which you can book a flight from Toronto to Denver (average of $220). Flying from Toronto to Denver in October is currently the most expensive (average of $324). 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

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Black Hawk
Westminster
Broomfield
Lakewood
Golden
Winter Park
Greeley
Lone Tree
Cripple Creek
Thornton
Silverthorne
Central City
Manitou Springs
Fort Morgan
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker
Sterling

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Toronto to Denver

Discover the top 2 airlines that operate flights from Toronto to Denver. 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 2,558,603 searches. Data last updated October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$317Average$419FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$384Average$592FlexibilityNo cancel feeOn-time69%

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