HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Denver

$178+ 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 9/21. Fares are subject to change and may not be available on all flights or dates of travel.
YTO — DEN
Sep 3 — Sep 101
Thu 9/3
Thu 9/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.
Cheapflights Tip: The best prices from Toronto to Denver Intl are usually found in November or September, booked 23 days in advance, depart on a Thursday or Friday and return on a Friday

Cheap 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 August 4, 2026.

This Kiwi.com deal was found by Cheapflights users on 8/1. 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 9/187:25 am
YYZ
-
DEN
2 stops14h 12m
Multiple Airlines
Wed 9/237:30 am
DEN
-
YYZ
1 stop10h 39m
Multiple Airlines
Deal found 8/1$386
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
Sat 9/1210:50 am
YTZ
-
DEN
1 stop8h 26m
Multiple Airlines
Sat 9/266:38 pm
DEN
-
YTZ
2 stops16h 17m
Multiple Airlines
Deal found 7/29$387
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 9/249:50 am
YYZ
-
DEN
1 stop23h 47m
Multiple Airlines
Thu 10/110:38 am
DEN
-
YYZ
1 stop9h 17m
Multiple Airlines
Deal found 8/1$387
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 9/1610:50 am
YTZ
-
DEN
1 stop8h 26m
Multiple Airlines
Fri 9/183:55 pm
DEN
-
YTZ
1 stop22h 05m
Multiple Airlines
Deal found 7/30$388
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 8/266:00 am
YYZ
-
DEN
2 stops13h 10m
Multiple Airlines
Wed 8/268:26 pm
DEN
-
YYZ
1 stop22h 24m
Multiple Airlines
Deal found 7/30$388
This Kiwi.com deal was found by Cheapflights users on 8/1. 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 9/1512:55 pm
YYZ
-
DEN
1 stop10h 54m
Multiple Airlines
Tue 9/2210:50 pm
DEN
-
YYZ
1 stop19h 19m
Multiple Airlines
Deal found 8/1$389
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 9/177:00 am
YYZ
-
DEN
1 stop10h 00m
Multiple Airlines
Sun 9/207:00 am
DEN
-
YYZ
2 stops21h 10m
Multiple Airlines
Deal found 7/30$390
This SmartFares deal was found by Cheapflights users on 8/1. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/158:45 am
YYZ
-
DEN
Nonstop3h 37m
Air Canada
Tue 9/2211:35 am
DEN
-
YYZ
Nonstop3h 10m
Air Canada
Deal found 8/1$391
This Kiwi.com deal was found by Cheapflights users on 8/2. 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 12/41:10 pm
YTZ
-
DEN
1 stop8h 50m
Multiple Airlines
Mon 12/75:52 pm
DEN
-
YTZ
1 stop18h 33m
Multiple Airlines
Deal found 8/2$392
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 9/112:55 pm
YYZ
-
DEN
1 stop10h 49m
Multiple Airlines
Thu 9/106:38 pm
DEN
-
YYZ
1 stop10h 01m
Multiple Airlines
Deal found 7/31$392
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
Sat 9/56:00 am
YYZ
-
DEN
2 stops15h 46m
Multiple Airlines
Mon 9/76:55 pm
DEN
-
YYZ
1 stop9h 44m
Multiple Airlines
Deal found 7/30$393
This Kiwi.com deal was found by Cheapflights users on 8/2. 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 9/171:45 pm
YTZ
-
DEN
2 stops22h 22m
Multiple Airlines
Sun 9/208:55 pm
DEN
-
YTZ
1 stop15h 30m
Multiple Airlines
Deal found 8/2$394

Find 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 August 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$386
(Kiwi.com)

One-way from

$178
(Kiwi.com)

Popular in

February

Cheapest in

November

Average price

$482

Good round-trip deal

$469 or less

Good one-way deal

$273 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. 2% potential increase in price ($14 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
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 August 4, 2026.
Use the filters below to find and compare flights from Toronto to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoDenver

YKF - DEN

YKFDEN

Toronto Region of Waterloo Intl

Thu 10/1

8:40 pm-11:20 am

1 stop16h 40m

Denver Intl

Sun 10/11

12:15 pm-7:50 pm

1 stop29h 35m

$419

TorontoDenver

YTZ - DEN

YTZDEN

Toronto Island

Thu 9/3

12:30 pm-6:55 pm

1 stop8h 25m

Denver Intl

Thu 9/10

11:25 am-9:30 pm

1 stop8h 05m

$431

TorontoDenver

YTZ - DEN

YTZDEN

Toronto Island

Sat 8/29

12:30 pm-6:55 pm

1 stop8h 25m

Denver Intl

Wed 9/9

11:25 am-9:30 pm

1 stop8h 05m

$431

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Sat 9/12

12:08 pm-5:21 pm

1 stop7h 13m

Denver Intl

Wed 9/23

6:00 am-5:18 pm

1 stop9h 18m

$439

TorontoDenver

YKF - DEN

YKFDEN

Toronto Region of Waterloo Intl

Wed 8/26

8:40 pm-11:20 am

1 stop16h 40m

Denver Intl

Wed 9/2

12:15 pm-7:50 pm

1 stop29h 35m

$439

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Fri 8/28

2:24 pm-10:48 pm

1 stop10h 24m

Denver Intl

Tue 9/8

6:30 am-5:20 pm

1 stop8h 50m

$439

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Sat 10/10

6:00 am-9:32 am

1 stop5h 32m

Denver Intl

Tue 10/13

11:07 am-11:15 pm

1 stop10h 08m

$439

TorontoDenver

YKF - DEN

YKFDEN

Toronto Region of Waterloo Intl

Fri 9/4

8:40 pm-11:20 am

1 stop16h 40m

Denver Intl

Sun 9/6

12:15 pm-7:50 pm

1 stop29h 35m

$458

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Wed 9/16

6:10 am-2:15 pm

1 stop10h 05m

Denver Intl

Fri 9/18

6:05 pm-11:16 pm

Nonstop3h 11m

$459

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Fri 9/25

10:45 am-12:23 pm

Nonstop3h 38m

Denver Intl

Tue 9/29

11:25 am-9:53 pm

1 stop8h 28m

$459

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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 August.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Toronto-Denver flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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

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

Currently, November is the cheapest month in which you can book a flight from Toronto to Denver (average of $438). Flying from Toronto to Denver in January is currently the most expensive (average of $592). 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 August 4, 2026.

When flying from Toronto to Denver, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Toronto to Denver

Explore weekly flight availability from Toronto to Denver. 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 August 4, 2026.

The most flights from YTO to DEN are scheduled on a Monday (10 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (6 on average).

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

Airfare is below average for this route at the moment.
Toronto to Denver flights typically cost between $388 and $546 in September.
The cheapest round-trip price found within the last 5 days was $386 on Multiple Airlines (Sep 18-Sep 23).

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

To ensure you get the cheapest price possible for a flight from Toronto to Denver, you should look to book at least 45 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.

The best insider tips for Toronto to Denver flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Toronto to Denver trip
Our travel experts
Jessica Macdonald

Jessica Macdonald

Expert on Air Canada

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 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 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 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 August 4, 2026.
See what other customers who have flown with United Airlines 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
10,058 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
United Airlines
7.4
Good
10,058 reviews
United Airlines
7.4
Good
10,058 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
Air Canada
7.1
Good
11,423 reviews
United Airlines
7.4
Good
10,058 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible

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 8 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 7h 13m. WestJet provides one of the quickest options available for as low as $439. Toronto and Denver are separated by a distance of 1312 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 ($314), and United Airlines ($384) offers the cheapest pricing from Toronto to Denver. Air Canada is currently priced 33% 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 Hamilton - 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: Air Canada (67%), United Airlines (67%), Brussels Airlines( 50%).

  • What are the cheapest flights from Toronto to Denver?

    Looking for the cheapest flight from Toronto to Denver? While on average our users pay $1,021, our data indicates the cheapest price to be $221. The most popular route (Toronto Pearson Intl - Denver Intl), is priced around $313.

  • 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, November is the cheapest month in which you can book a flight from Toronto to Denver (average of $438). Flying from Toronto to Denver in January is currently the most expensive (average of $592). 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
Thornton
Westminster
Black Hawk
Centennial
Lakewood
Broomfield
Golden
Lone Tree
Wheat Ridge
Silverthorne
Central City
Fort Morgan
Cripple Creek
Greeley
Winter Park
Limon
Manitou Springs
Frisco
Englewood
Glendale

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Toronto to Denver

See prices for flight routes from nearby airports that may be better suited for you.
Pearson Intl to Denver flights
Ottawa to Denver flights

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 August 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$314Average$489FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$384Average$539FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights