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$143+ Cheap flights from Colorado 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — YTO
Sep 7 — Sep 141
Mon 9/7
Mon 9/14
1 adult, Economy
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Cheap flight deals from Colorado to Toronto

Cheapest flights from Colorado to Toronto
Explore the most affordable flight options available from Colorado to Toronto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 8, 2026.

This Kiwi.com deal was found by Cheapflights users on 8/3. 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 10/110:38 am -
1 stop27h 22m
Tue 10/61:45 pm -
2 stops20h 19m
Deal found 8/3$343
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 10/28:55 pm -
1 stop15h 30m
Tue 10/61:45 pm -
1 stop20h 30m
Deal found 8/3$345
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 8/269:55 am -
1 stop25h 10m
Thu 9/101:45 pm -
1 stop20h 30m
Deal found 8/3$350
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 10/227:00 am -
2 stops12h 55m
Fri 10/302:00 pm -
1 stop9h 49m
Deal found 8/4$350
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 8/2411:59 pm -
2 stops15h 56m
Thu 9/101:45 pm -
1 stop20h 30m
Deal found 8/3$354
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 10/216:30 am -
2 stops11h 35m
Fri 10/302:00 pm -
1 stop9h 49m
Deal found 8/4$354
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 11/510:25 am -
1 stop11h 45m
Mon 11/92:00 pm -
1 stop9h 49m
Deal found 8/3$356
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 10/110:38 am -
1 stop9h 17m
Tue 10/612:55 pm -
1 stop10h 54m
Deal found 8/3$358
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 9/148:55 pm -
1 stop15h 30m
Tue 9/227:15 pm -
2 stops27h 48m
Deal found 8/6$360
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 8/269:55 am -
1 stop25h 10m
Fri 9/111:45 pm -
1 stop20h 30m
Deal found 8/3$361
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 9/1710:45 am -
1 stop9h 10m
Thu 9/247:25 am -
2 stops15h 59m
Deal found 8/3$361
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 9/167:10 pm -
2 stops23h 45m
Tue 9/2212:55 pm -
1 stop10h 54m
Deal found 8/6$362

Find flight deals from Colorado to Toronto

Keep the following information in mind while searching for Colorado to Toronto flight deals. Data was last updated August 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$343
(Kiwi.com)

One-way from

$143
(Kiwi.com)

Popular in

February

Cheapest in

November

Average price

$526

Good round-trip deal

$601 or less

Good one-way deal

$278 or less
Provider with most accurate pricing for Denver Intl-Toronto (YTO) flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Toronto (YTO) flights.
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From Colorado to Toronto (YTO)
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One-way flight from Colorado to Toronto (YTO)
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 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 Colorado to Toronto (YTO).
Search Deals
Price to beat on a one-way flight from Colorado to Toronto (YTO).
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado 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 August 8, 2026.
Use the filters below to find and compare flights from Colorado to Toronto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverToronto

DEN Denver Intl - YTZ Toronto Island

DENYTZ

Denver Intl

Sun 10/25

6:25 am-8:50 pm

1 stop12h 25m

Toronto Island

Thu 10/29

4:35 pm-12:29 am

1 stop9h 54m

$381

DenverToronto

DEN Denver Intl - YTZ Toronto Island

DENYTZ

Denver Intl

Wed 9/23

10:38 am-4:00 pm

1 stop27h 22m

Toronto Island

Mon 9/28

7:15 pm-9:03 pm

2 stops27h 48m

$382

DenverToronto

DEN Denver Intl - YTZ Toronto Island

DENYTZ

Denver Intl

Sun 9/13

8:55 pm-2:25 pm

1 stop15h 30m

Toronto Island

Fri 9/18

7:15 pm-9:24 pm

2 stops28h 09m

$390

DenverToronto

DEN Denver Intl - YTZ Toronto Island

DENYTZ

Denver Intl

Fri 9/11

3:55 pm-4:00 pm

1 stop22h 05m

Toronto Island

Mon 9/14

10:50 am-10:35 pm

1 stop13h 45m

$436

DenverToronto

DEN Denver Intl - YKF Toronto Region of Waterloo Intl

DENYKF

Denver Intl

Fri 10/2

12:15 pm-7:50 pm

1 stop29h 35m

Toronto Region of Waterloo Intl

Wed 10/7

8:40 pm-11:20 am

1 stop16h 40m

$496

DenverToronto

DEN Denver Intl - YKF Toronto Region of Waterloo Intl

DENYKF

Denver Intl

Mon 8/31

7:45 pm-3:00 pm

2 stops17h 15m

Toronto Region of Waterloo Intl

Mon 9/7

6:05 am-11:52 pm

3 stops19h 47m

$499

Colorado SpringsToronto

COS Colorado Springs - YYZ Toronto Pearson Intl

COSYYZ

Colorado Springs

Sat 9/12

8:07 am-5:20 pm

1 stop7h 13m

Toronto Pearson Intl

Sat 9/19

3:13 pm-8:40 pm

1 stop7h 27m

$502

DenverToronto

DEN Denver Intl - YKF Toronto Region of Waterloo Intl

DENYKF

Denver Intl

Mon 9/21

7:50 pm-3:00 pm

2 stops17h 10m

Toronto Region of Waterloo Intl

Mon 9/28

8:40 pm-4:58 pm

2 stops22h 18m

$506

DenverHamilton

DEN Denver Intl - YHM Hamilton

DENYHM

Denver Intl

Wed 8/26

12:15 pm-5:15 pm

1 stop27h 00m

Hamilton

Sun 8/30

6:10 pm-11:20 am

1 stop19h 10m

$532

DenverToronto

DEN Denver Intl - YTZ Toronto Island

DENYTZ

Denver Intl

Mon 9/28

7:50 pm-11:50 am

2 stops14h 00m

Toronto Island

Thu 10/1

12:20 pm-6:46 pm

2 stops8h 26m

$552

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/3

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Colorado to Toronto

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

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

Currently, November is the cheapest month in which you can book a flight from Colorado to Toronto (average of $525). Flying from Colorado to Toronto in February is currently the most expensive (average of $686). 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 CO to YTO?

Find hourly flight availability from Colorado 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 August 8, 2026.

When flying from Colorado to Toronto, 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 Colorado to Toronto

Explore weekly flight availability from Colorado 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 August 8, 2026.

The most flights from USCO to YTO 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 (5 on average).

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

Airfare is below average for this route at the moment.
Colorado to Toronto flights typically cost between $392 and $685 in October.
The cheapest round-trip price found within the last 5 days was $343 on Multiple Airlines (Oct 1-Oct 6).

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

The price you pay for your flight from Colorado to Toronto may vary depending on when you book. For the best chance of a lower fare, look to book 45 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Related info for your journey

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

  • How long is the flight from Colorado to Toronto?

    WestJet, American Airlines, and Air Canada can get you from Colorado to Toronto in just under 7h 13m. Your travel time can differ by up to 22h 22m. Colorado and Toronto are separated by a distance of 1339 mi. This flight may include one or multiple stops.

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

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

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Colorado to Toronto on time: United Airlines (72%), Air Canada (66%), Brussels Airlines (65%).

  • What are the cheapest flights from Colorado to Toronto?

    Looking at all options, your cheapest flight can be booked for $235. While the most popular route (Denver Intl - Toronto Pearson Intl) can be booked for $363 on average, our data indicates $1,780 when flying from Colorado to Toronto.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Colorado to Toronto (average of $525). Flying from Colorado to Toronto in February is currently the most expensive (average of $686). 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

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Alternative routes for Colorado to Toronto

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Colorado to Toronto

Discover the top 2 airlines that operate flights from Colorado 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 August 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$203Average$572FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$225Average$596FlexibilityNo cancel feeOn-time69%

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