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$143+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
YTO — DEN
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheapflights Tip: The best prices from Toronto to Denver Intl are usually found in August or September, booked 85 days in advance, depart on a Friday or Thursday and return on a Thursday

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 July 29, 2025.

Round-trip from

$312
(Kiwi.com)

One-way from

$143
(Kiwi.com)

Popular in

February

Cheapest in

August

Average price

$451

Good round-trip deal

$399 or less

Good one-way deal

$260 or less
From Toronto (YTO) to Denver Intl
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One-way flight from Toronto (YTO) to Denver Intl
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Highest demand for flights based on searches. 6% potential increase in price ($28 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Toronto (YTO) to Denver Intl.
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Price to beat on a one-way flight from Toronto (YTO) to Denver Intl.
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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 July 29, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/28. 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 9/116:00 amYHM - DEN
1 stop31h 24mWestJet
Thu 9/1812:15 pmDEN - YHM
1 stop10h 25mWestJet
Deal found 7/28$312
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 9/276:00 amYHM - DEN
1 stop31h 24mMultiple Airlines
Sun 10/512:15 pmDEN - YHM
1 stop31h 04mMultiple Airlines
Deal found 7/29$315
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2112:25 pmYTZ - DEN
1 stop7h 55mAir Canada
Thu 8/285:40 pmDEN - YTZ
1 stop12h 26mAir Canada
Deal found 7/29$317
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 9/179:40 pmYYZ - DEN
1 stop15h 44mMultiple Airlines
Tue 9/2312:15 pmDEN - YYZ
1 stop8h 37mMultiple Airlines
Deal found 7/28$317
This Air Canada deal was found by Cheapflights users on 7/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2911:40 amYYZ - DEN
1 stop9h 50mAir Canada
Tue 9/27:45 amDEN - YYZ
Nonstop3h 05mAir Canada
Deal found 7/28$319
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 9/2210:25 pmYYZ - DEN
1 stop14h 59mWestJet
Thu 9/2512:15 pmDEN - YYZ
1 stop8h 37mWestJet
Deal found 7/28$321
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/195:43 pmYYZ - DEN
1 stop7h 01mDelta
Sun 9/2112:45 amDEN - YYZ
1 stop6h 37mDelta
Deal found 7/29$325
This United Airlines deal was found by Cheapflights users on 7/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/207:00 amYYZ - DEN
2 stops10h 00mUnited Airlines
Tue 8/264:17 pmDEN - YYZ
1 stop5h 41mUnited Airlines
Deal found 7/28$331
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 9/227:50 amYTZ - DEN
1 stop12h 36mMultiple Airlines
Mon 9/2912:04 amDEN - YTZ
2 stops16h 59mMultiple Airlines
Deal found 7/27$344
This oojo deal was found by Cheapflights users on 7/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/47:45 pmYKF - DEN
1 stop17h 39mWestJet
Mon 9/812:15 pmDEN - YKF
1 stop10h 30mWestJet
Deal found 7/28$353
This Mytrip deal was found by Cheapflights users on 7/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/189:25 amYKF - DEN
2 stops28h 02mMultiple Airlines
Sun 8/247:05 pmDEN - YKF
3 stops32h 25mMultiple Airlines
Deal found 7/28$456

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 July 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

HamiltonDenver

YHM - DEN

YHMDEN

Hamilton

Thu 9/11

6:00 am-11:24 am

1 stop31h 24m

Denver Intl

Thu 9/18

12:15 pm-12:40 am

1 stop10h 25m

$312

HamiltonDenver

YHM - DEN

YHMDEN

Hamilton

Sat 9/27

6:00 am-11:24 am

1 stop31h 24m

Denver Intl

Sun 10/5

12:15 pm-9:19 pm

1 stop31h 04m

$315

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Wed 9/17

9:40 pm-11:24 am

1 stop15h 44m

Denver Intl

Tue 9/23

12:15 pm-10:52 pm

1 stop8h 37m

$317

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Fri 8/29

11:40 am-7:30 pm

1 stop9h 50m

Denver Intl

Tue 9/2

7:45 am-12:50 pm

Nonstop3h 05m

$319

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Mon 9/22

10:25 pm-11:24 am

1 stop14h 59m

Denver Intl

Thu 9/25

12:15 pm-10:52 pm

1 stop8h 37m

$321

TorontoDenver

YYZ - DEN

YYZDEN

Toronto Pearson Intl

Wed 8/20

9:44 am-11:27 am

Nonstop3h 43m

Denver Intl

Sat 8/23

2:45 pm-11:58 pm

1 stop7h 13m

$331

TorontoDenver

YTZ - DEN

YTZDEN

Toronto Island

Thu 9/4

12:25 pm-6:18 pm

1 stop7h 53m

Denver Intl

Mon 9/8

9:40 am-9:34 pm

1 stop9h 54m

$335

TorontoDenver

YTZ - DEN

YTZDEN

Toronto Island

Mon 9/22

7:50 am-6:26 pm

1 stop12h 36m

Denver Intl

Mon 9/29

12:04 am-7:03 pm

2 stops16h 59m

$344

TorontoDenver

YKF - DEN

YKFDEN

Toronto Region of Waterloo Intl

Thu 9/4

7:45 pm-11:24 am

1 stop17h 39m

Denver Intl

Mon 9/8

12:15 pm-12:45 am

1 stop10h 30m

$353

TorontoDenver

YKF - DEN

YKFDEN

Toronto Region of Waterloo Intl

Mon 8/18

9:25 am-11:27 am

2 stops28h 02m

Denver Intl

Sun 8/24

7:05 pm-5:30 am

3 stops32h 25m

$456

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 21 results
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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

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 July 25, 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, October is the cheapest month in which you can book a flight from Toronto to Denver (average of $197). Flying from Toronto to Denver in March is currently the most expensive (average of $278). 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 July 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 at noon, which can drop the price by up to 23% versus a flight in the morning.

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 July 29, 2025.

The most flights from YTO to DEN are scheduled on a Monday (10 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 on average).

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 July 29, 2025.
See what other customers who have flown with United Airlines, American Airlines, and WestJet 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
8,896 reviews

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
United Airlines
7.4
Good
8,896 reviews
United Airlines
7.4
Good
8,896 reviews

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,896 reviews

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
WestJet
7.2
Good
2,972 reviews
United Airlines
7.4
Good
8,896 reviews

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.
Air Canada
7.1
Good
9,826 reviews
United Airlines
7.4
Good
8,896 reviews

Boarding

7.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

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.

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

    According to our current data, WestJet ($312), Air Canada ($319), and United Airlines ($331) offers the cheapest pricing from Toronto to Denver. WestJet is currently priced 30% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Toronto to Denver one-way?

    For one-way options, check prices for Air Canada. According to our data, you can fly for as low as $160. Users have also found prices from $174 and $191 on WestJet and United Airlines, respectively.

  • 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 (60%), United Airlines (60%), Brussels Airlines( 31%).

  • What are the cheapest flights from Toronto to Denver?

    Looking for the cheapest flight from Toronto to Denver? While on average our users pay $724, our data indicates the cheapest price to be $182. The most popular route (Toronto Pearson Intl - Denver Intl), is priced around $270.

  • 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, October is the cheapest month in which you can book a flight from Toronto to Denver (average of $197). Flying from Toronto to Denver in March is currently the most expensive (average of $278). 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
Westminster
Black Hawk
Winter Park
Lakewood
Greeley
Cripple Creek
Brighton
Silverthorne
Golden
Thornton
Frisco
Grand Lake
Manitou Springs
Central City
Fort Morgan
Glendale
Copper Mountain
Wheat Ridge
Longmont
Broomfield

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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$339Average$435FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$405Average$557FlexibilityNo cancel feeOn-time69%

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