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$133+ 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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — YTO
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Colorado to Toronto

Keep the following information in mind while searching for Colorado to Toronto flight deals. Data was last updated July 31, 2025.

Round-trip from

$285
(Kiwi.com)

One-way from

$133
(Trip.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 Colorado to Toronto (YTO)
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One-way flight from Colorado 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 Colorado to Toronto (YTO).
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Price to beat on a one-way flight from Colorado to Toronto (YTO).
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Find 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 July 31, 2025.

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 9/312:15 pmDEN - YYZ
1 stop10h 07mWestJet
Sun 9/710:00 amYYZ - DEN
1 stop10h 48mWestJet
Deal found 7/30$285
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 - YYZ
1 stop16h 25mMultiple Airlines
Sun 9/79:40 pmYYZ - DEN
1 stop15h 44mMultiple Airlines
Deal found 7/29$293
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 9/135:50 pmDEN - YTZ
1 stop16h 27mMultiple Airlines
Tue 9/163:35 pmYTZ - DEN
1 stop19h 38mMultiple Airlines
Deal found 7/29$302
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 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/412:15 pmDEN - YHM
1 stop10h 25mWestJet
Sun 9/76:00 amYHM - DEN
1 stop14h 48mWestJet
Deal found 7/30$331
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 8/187:45 amDEN - YYZ
Nonstop3h 13mAir Canada
Sun 8/246:20 pmYYZ - DEN
Nonstop3h 40mAir Canada
Deal found 7/28$331
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/512:15 pmDEN - YKF
1 stop15h 00mMultiple Airlines
Sun 9/76:00 amYKF - DEN
1 stop14h 48mMultiple Airlines
Deal found 7/30$336
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 9/2512:15 pmDEN - YHM
1 stop10h 25mMultiple Airlines
Sat 9/276:55 pmYHM - DEN
1 stop18h 29mMultiple Airlines
Deal found 7/29$343
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/201:10 pmCOS - YYZ
1 stop6h 48mDelta
Wed 8/276:20 amYYZ - COS
1 stop5h 56mDelta
Deal found 7/30$378
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2312:15 pmDEN - YKF
1 stop10h 31mWestJet
Tue 8/267:45 pmYKF - DEN
1 stop17h 42mWestJet
Deal found 7/29$387
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/236:27 amCOS - YYZ
1 stop14h 18mAmerican Airlines
Sun 8/316:49 amYYZ - COS
1 stop11h 28mAmerican Airlines
Deal found 7/30$408
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2012:02 pmCOS - YYZ
1 stop6h 42mUnited Airlines
Wed 8/277:00 amYYZ - COS
3 stops16h 54mUnited Airlines
Deal found 7/29$418

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 July 31, 2025.
Use the filters below to find and compare flights from Colorado to Toronto that are best for you.

Fly from

Colorado

Fly to

Toronto

Route

Depart

Return

Price

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Wed 9/3

12:15 pm-12:22 am

1 stop10h 07m

Toronto Pearson Intl

Sun 9/7

10:00 am-6:48 pm

1 stop10h 48m

$285

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 9/4

12:15 pm-6:40 am

1 stop16h 25m

Toronto Pearson Intl

Sun 9/7

9:40 pm-11:24 am

1 stop15h 44m

$293

DenverToronto

DEN - YTZ

DENYTZ

Denver Intl

Sat 9/13

5:50 pm-12:17 pm

1 stop16h 27m

Toronto Island

Tue 9/16

3:35 pm-9:13 am

1 stop19h 38m

$302

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

Thu 9/4

12:15 pm-12:40 am

1 stop10h 25m

Hamilton

Sun 9/7

6:00 am-6:48 pm

1 stop14h 48m

$331

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Mon 8/18

7:45 am-12:58 pm

Nonstop3h 13m

Toronto Pearson Intl

Sun 8/24

6:20 pm-8:00 pm

Nonstop3h 40m

$331

DenverToronto

DEN - YKF

DENYKF

Denver Intl

Fri 9/5

12:15 pm-5:15 am

1 stop15h 00m

Toronto Region of Waterloo Intl

Sun 9/7

6:00 am-6:48 pm

1 stop14h 48m

$336

DenverHamilton

DEN - YHM

DENYHM

Denver Intl

Thu 9/25

12:15 pm-12:40 am

1 stop10h 25m

Hamilton

Sat 9/27

6:55 pm-11:24 am

1 stop18h 29m

$343

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Wed 8/20

1:10 pm-9:58 pm

1 stop6h 48m

Toronto Pearson Intl

Wed 8/27

6:20 am-10:16 am

1 stop5h 56m

$378

DenverToronto

DEN - YKF

DENYKF

Denver Intl

Sat 8/23

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

$387

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 31 results
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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, January is the cheapest month in which you can book a flight from Colorado to Toronto (average of $243). Flying from Colorado 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 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 July 31, 2025.

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 July 31, 2025.

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 (9 on average).

How much does it cost to fly round-trip from Colorado 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 31, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and United Airlines from Colorado to Toronto have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

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

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

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
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

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
8,902 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

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

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

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
2,977 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.1

Overall

8.0

Food

7.1

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 Colorado to Toronto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    The cheapest airlines for a one-way flight from Colorado to Toronto are WestJet ($133), Air Canada ($171), and Sun Country Air ($181).

  • What are the most popular routes from Colorado 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 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: Austrian Airlines (72%), Air Canada (68%), United Airlines (68%).

  • What are the cheapest flights from Colorado to Toronto?

    Looking at all options, your cheapest flight can be booked for $166. While the most popular route (Denver Intl - Toronto Pearson Intl) can be booked for $292 on average our data indicates $1,951 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, January is the cheapest month in which you can book a flight from Colorado to Toronto (average of $243). Flying from Colorado 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

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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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Newark to Toronto Island flights
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Fort Lauderdale to Pierre Elliott Trudeau Intl flights
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LaGuardia to Toronto Island flights
Charlotte to Pearson Intl flights
Dallas/Fort Worth to Pierre Elliott Trudeau Intl flights
Tampa to Pearson Intl flights
Nashville to Pearson Intl flights

Top 4 airlines flying from Colorado to Toronto

Discover the top 4 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$150Average$356FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$180Average$545FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$229Average$542FlexibilityNo cancel feeOn-time67%
WestJetCheapest$261Average$297FlexibilityNo cancel feeOn-time60%

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