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$170+ Cheap flights from Denver (DEN) to Toronto (YTO)

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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — YTO
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Toronto are usually found in March or January, booked 26 days in advance, depart on a Thursday or Tuesday and return on a Friday

Cheap flight deals from Denver to Toronto

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

$263
(Kiwi.com)

One-way from

$170
(Booking.com)

Popular in

November

Cheapest in

March

Average price

$522

Good round-trip deal

$478 or less

Good one-way deal

$241 or less
From Denver Intl to Toronto (YTO)
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One-way flight from Denver Intl to Toronto (YTO)
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Highest demand for flights based on searches. 7% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($10 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 Denver Intl to Toronto (YTO).
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Price to beat on a one-way flight from Denver Intl to Toronto (YTO).
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Find flight deals from Denver to Toronto

Cheapest flights from Denver to Toronto
Explore the most affordable flight options available from Denver to Toronto. 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 7/27. 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 9/2612:15 pmDEN - YYZ
1 stop10h 07mMultiple Airlines
Tue 9/3012:00 pmYYZ - DEN
2 stops18h 00mMultiple Airlines
Deal found 7/27$263
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.
Thu 9/1112:15 pmDEN - YYZ
1 stop8h 37mWestJet
Mon 9/1510:25 pmYYZ - DEN
1 stop14h 59mWestJet
Deal found 7/27$275
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.
Fri 9/1212:28 pmDEN - YTZ
1 stop5h 34mMultiple Airlines
Mon 9/157:50 amYTZ - DEN
1 stop12h 36mMultiple Airlines
Deal found 7/27$286
This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/911:25 amDEN - YYZ
Nonstop3h 10mAir Canada
Fri 9/1211:15 amYYZ - DEN
1 stop10h 08mAir Canada
Deal found 7/27$311
This Flightnetwork 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/189:40 amDEN - YTZ
1 stop8h 06mAir Canada
Sun 8/2412:25 pmYTZ - DEN
1 stop7h 55mAir Canada
Deal found 7/28$318
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/912:15 pmDEN - YHM
1 stop10h 25mMultiple Airlines
Sat 9/137:15 pmYHM - DEN
1 stop18h 09mMultiple Airlines
Deal found 7/27$341
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/412:15 pmDEN - YKF
1 stop10h 30mMultiple Airlines
Sun 9/76:00 amYKF - DEN
1 stop14h 48mMultiple Airlines
Deal found 7/29$356
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.
Sat 8/3012:15 pmDEN - YHM
1 stop10h 26mWestJet
Sun 9/76:00 amYHM - DEN
1 stop14h 48mWestJet
Deal found 7/28$407
This SmartFares 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2212:15 pmDEN - YKF
1 stop10h 31mWestJet
Tue 8/267:45 pmYKF - DEN
1 stop17h 42mWestJet
Deal found 7/28$620

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Toronto 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 Denver to Toronto that are best for you.

Fly from

Denver

Fly to

Toronto

Route

Depart

Return

Price

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Fri 9/26

12:15 pm-12:22 am

1 stop10h 07m

Toronto Pearson Intl

Tue 9/30

12:00 pm-4:00 am

2 stops18h 00m

$263

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 9/11

12:15 pm-10:52 pm

1 stop8h 37m

Toronto Pearson Intl

Mon 9/15

10:25 pm-11:24 am

1 stop14h 59m

$275

DenverToronto

DEN - YTZ

DENYTZ

Denver Intl

Fri 9/12

12:28 pm-8:02 pm

1 stop5h 34m

Toronto Island

Mon 9/15

7:50 am-6:26 pm

1 stop12h 36m

$286

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Tue 9/9

11:25 am-4:35 pm

Nonstop3h 10m

Toronto Pearson Intl

Fri 9/12

11:15 am-7:23 pm

1 stop10h 08m

$311

DenverToronto

DEN - YTZ

DENYTZ

Denver Intl

Mon 8/18

9:40 am-7:46 pm

1 stop8h 06m

Toronto Island

Sun 8/24

12:25 pm-6:20 pm

1 stop7h 55m

$318

DenverHamilton

DEN - YHM

DENYHM

Denver Intl

Tue 9/9

12:15 pm-12:40 am

1 stop10h 25m

Hamilton

Sat 9/13

7:15 pm-11:24 am

1 stop18h 09m

$341

DenverToronto

DEN - YKF

DENYKF

Denver Intl

Thu 9/4

12:15 pm-12:45 am

1 stop10h 30m

Toronto Region of Waterloo Intl

Sun 9/7

6:00 am-6:48 pm

1 stop14h 48m

$356

DenverHamilton

DEN - YHM

DENYHM

Denver Intl

Sat 8/30

12:15 pm-12:41 am

1 stop10h 26m

Hamilton

Sun 9/7

6:00 am-6:48 pm

1 stop14h 48m

$407

DenverToronto

DEN - YKF

DENYKF

Denver Intl

Fri 8/22

12:15 pm-12:46 am

1 stop10h 31m

Toronto Region of Waterloo Intl

Tue 8/26

7:45 pm-11:27 am

1 stop17h 42m

$620

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Wed 8/20

12:15 pm-10:54 pm

1 stop8h 39m

$170

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 23 results
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The best insider tips for Denver to Toronto 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 Denver to Toronto trip
Airports
DEN

For a quick security check, reserve a time online at DEN. This option is available for general screening only.

Read more about DENby Emily Zemler
YYZ

Use public transportation from YYZ to avoid traffic. The TTC and GO Transit offer express buses to downtown and suburbs.

Read more about YYZby Kaitlyn McInnis
Our travel experts
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 Denver to Toronto

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

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

Use this chart to determine the optimal time to book a round-trip flight from Denver to Toronto. Price data was last updated on July 25, 2025.

The best time to book flights from Denver to Toronto is 26 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Denver to Toronto (average of $243). Flying from Denver to Toronto in August is currently the most expensive (average of $348). 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 DEN to YTO?

Find hourly flight availability from Denver to Toronto. 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.

Unlike at noon, when flights are generally more expensive, you can save up to 25% on flights from Denver to Toronto by exploring options for tickets in the evening.

Weekly flight availability from Denver to Toronto

Explore weekly flight availability from Denver to Toronto. 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 DEN to YTO are scheduled on a Monday (11 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (7 on average).

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

Reviews of airlines servicing Toronto

Get insights into the airlines that provide service to Toronto. 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 Toronto. Reviews last updated July 29, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and United Airlines from Denver to Toronto have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,979 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
WestJet
7.2
Good
2,972 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Denver to Toronto. 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 from for flights from Denver to Toronto?

    Most people fly from Denver Intl (DEN) if they book a flight from Denver to Toronto. On average, Denver Intl has 9 outbound flights to Toronto per day from 4 airlines. Denver Intl is conveniently located just 18.5 mi from Denver’s city center.

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

    Currently priced at $275, WestJet will fly you from Denver to Toronto and back. In addition to WestJet, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Air Canada for as low as $311. WestJet is currently priced 42% below the average price you’ll pay for this route.

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

    For one-way options, check prices for WestJet. According to our data, you can fly for as low as $170. Users have also found prices from $173 and $176 on Air Canada and Delta, respectively.

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

    While some choose either Denver Intl - Toronto Island or Denver Intl - Hamilton, Denver Intl - Toronto Pearson Intl is the most popular route from Denver to Toronto.

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

    The top 3 most reliable airlines when flying from Denver to Toronto are Austrian Airlines (72%), Air Canada (68%) and United Airlines (68%).

  • What are the cheapest flights from Denver to Toronto?

    On average you can expect to pay $1,951 for a flight from Denver to Toronto. The cheapest flight overall is $166 while the most popular route, (Denver Intl - Toronto Pearson Intl) is currently priced at $263.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Denver to Toronto (average of $243). Flying from Denver to Toronto in August is currently the most expensive (average of $348). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Denver to Toronto

Discover the top 4 airlines that operate flights from Denver to Toronto. 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$229Average$542FlexibilityNo cancel feeOn-time67%
WestJetCheapest$261Average$297FlexibilityNo cancel feeOn-time60%
United AirlinesCheapest$277Average$559FlexibilityNo cancel feeOn-time69%
DeltaCheapest$373Average$483FlexibilityNo cancel feeOn-timeN/A

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