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Cheap flights from Colorado to Toronto from C$ 233

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 20/8. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — YTO
3 Aug — 10 Aug1
1 adult

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 29 July 2025.

Round-trip from

C$ 361

One-way from

C$ 233

Popular in

November

Cheapest in

March

Average price

C$ 716

Good round-trip deal

C$ 543 or less

Good one-way deal

C$ 248 or less
26/9-30/9
  • 26/9-30/9
  • 3 total stops
  • 28h 07m total
  • Colorado to Toronto
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WestJet
  • WestJet
  • 20/8
  • 1 total stop
  • 8h 39m total
  • Colorado to Toronto
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Highest demand for flights based on searches. 7% potential increase in price (C$ 71 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 19 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 29 July 2025.

Fri 26/912:15 p.m.DEN - YYZ
1 stop10h 07mMultiple Airlines
Tue 30/912:00 p.m.YYZ - DEN
2 stops18h 00mMultiple Airlines
Deal found 27/7C$ 361
Thu 11/912:15 p.m.DEN - YYZ
1 stop8h 37mWestJet
Mon 15/910:25 p.m.YYZ - DEN
1 stop14h 59mWestJet
Deal found 27/7C$ 377
Fri 12/912:28 p.m.DEN - YTZ
1 stop5h 34mMultiple Airlines
Mon 15/97:50 a.m.YTZ - DEN
1 stop12h 36mMultiple Airlines
Deal found 27/7C$ 392
Tue 9/911:25 a.m.DEN - YYZ
Nonstop3h 10mAir Canada
Fri 12/911:15 a.m.YYZ - DEN
1 stop10h 08mAir Canada
Deal found 27/7C$ 427
Mon 18/89:40 a.m.DEN - YTZ
1 stop8h 06mAir Canada
Sun 24/812:25 p.m.YTZ - DEN
1 stop7h 55mAir Canada
Deal found 28/7C$ 436
Tue 9/912:15 p.m.DEN - YHM
1 stop10h 25mMultiple Airlines
Sat 13/97:15 p.m.YHM - DEN
1 stop18h 09mMultiple Airlines
Deal found 27/7C$ 468
Thu 4/912:15 p.m.DEN - YKF
1 stop10h 30mMultiple Airlines
Sun 7/96:00 a.m.YKF - DEN
1 stop14h 48mMultiple Airlines
Deal found 29/7C$ 488
Wed 20/812:02 p.m.COS - YYZ
1 stop9h 56mUnited Airlines
Wed 27/89:44 a.m.YYZ - COS
1 stop16h 06mUnited Airlines
Deal found 27/7C$ 519
Sat 23/812:15 p.m.DEN - YKF
1 stop10h 31mWestJet
Tue 26/87:45 p.m.YKF - DEN
1 stop17h 42mWestJet
Deal found 29/7C$ 531
Sat 30/812:15 p.m.DEN - YHM
1 stop10h 26mWestJet
Sun 7/96:00 a.m.YHM - DEN
1 stop14h 48mWestJet
Deal found 28/7C$ 558
Sat 11/108:09 a.m.COS - YYZ
2 stops13h 09mDelta
Tue 14/1012:14 p.m.YYZ - COS
2 stops11h 56mDelta
Deal found 28/7C$ 582
Sat 23/86:27 a.m.COS - YYZ
2 stops9h 14mAmerican Airlines
Sun 31/86:30 a.m.YYZ - COS
2 stops11h 47mAmerican Airlines
Deal found 28/7C$ 612

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 629,999 searches. Data last updated 29 July 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

Fri 26/9

12:15 p.m.-12:22 a.m.

1 stop10h 07m

Toronto Pearson Intl

Tue 30/9

12:00 p.m.-4:00 a.m.

2 stops18h 00m

C$ 361

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Thu 11/9

12:15 p.m.-10:52 p.m.

1 stop8h 37m

Toronto Pearson Intl

Mon 15/9

10:25 p.m.-11:24 a.m.

1 stop14h 59m

C$ 377

DenverToronto

DEN - YTZ

DENYTZ

Denver Intl

Fri 12/9

12:28 p.m.-8:02 p.m.

1 stop5h 34m

Toronto Island

Mon 15/9

7:50 a.m.-6:26 p.m.

1 stop12h 36m

C$ 392

DenverToronto

DEN - YYZ

DENYYZ

Denver Intl

Tue 9/9

11:25 a.m.-4:35 p.m.

Nonstop3h 10m

Toronto Pearson Intl

Fri 12/9

11:15 a.m.-7:23 p.m.

1 stop10h 08m

C$ 427

DenverToronto

DEN - YTZ

DENYTZ

Denver Intl

Mon 18/8

9:40 a.m.-7:46 p.m.

1 stop8h 06m

Toronto Island

Sun 24/8

12:25 p.m.-6:20 p.m.

1 stop7h 55m

C$ 436

DenverHamilton

DEN - YHM

DENYHM

Denver Intl

Tue 9/9

12:15 p.m.-12:40 a.m.

1 stop10h 25m

Hamilton

Sat 13/9

7:15 p.m.-11:24 a.m.

1 stop18h 09m

C$ 468

DenverToronto

DEN - YKF

DENYKF

Denver Intl

Thu 4/9

12:15 p.m.-12:45 a.m.

1 stop10h 30m

Toronto Region of Waterloo Intl

Sun 7/9

6:00 a.m.-6:48 p.m.

1 stop14h 48m

C$ 488

Colorado SpringsToronto

COS - YYZ

COSYYZ

Colorado Springs

Wed 20/8

12:02 p.m.-11:58 p.m.

1 stop9h 56m

Toronto Pearson Intl

Wed 27/8

9:44 a.m.-11:50 p.m.

1 stop16h 06m

C$ 519

DenverToronto

DEN - YKF

DENYKF

Denver Intl

Sat 23/8

12:15 p.m.-12:46 a.m.

1 stop10h 31m

Toronto Region of Waterloo Intl

Tue 26/8

7:45 p.m.-11:27 a.m.

1 stop17h 42m

C$ 531

DenverHamilton

DEN - YHM

DENYHM

Denver Intl

Sat 30/8

12:15 p.m.-12:41 a.m.

1 stop10h 26m

Hamilton

Sun 7/9

6:00 a.m.-6:48 p.m.

1 stop14h 48m

C$ 558

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/7

Showing 1-10 of 28 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 C$ 167). Flying from Colorado to Toronto in July is currently the most expensive (average of C$ 258). 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 29 July 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 29 July 2025.

The most flights from USCO 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 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 29 July 2025.
Read reviews from past customers who have flown Alaska Airlines,Delta, andUnited Airlines from Colorado to Toronto. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews
Check prices

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
Check prices

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
Check prices

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
Check prices

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
Check prices

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
Check prices

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 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?

    C$ 233 is the cheapest one-way deal found within the past few days, from WestJet. You may also be able to find cheap deals on Air Canada and Delta, with prices starting from C$ 237 and C$ 241, respectively.

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

    When deciding which route to take from Colorado to Toronto consider Denver Intl - Toronto Pearson Intl, Denver Intl - Toronto Island or Denver Intl - Toronto Region of Waterloo Intl as they are the most popular.

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

    No one likes to see their flight delayed. When booking a flight from Colorado to Toronto consider choosing Austrian Airlines (72%), Air Canada (68%) or United Airlines (68%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Colorado to Toronto?

    While on average a flight from Colorado to Toronto is generally C$ 456, our data shows the cheapest flight currently is C$ 192. When looking at the most popular route, (Denver Intl - Toronto Pearson Intl), you can expect to pay C$ 361 for that flight.

  • 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 C$ 167). Flying from Colorado to Toronto in July is currently the most expensive (average of C$ 258). 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 airline flying from Colorado to Toronto

Discover the top airline 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 629,999 searches. Data last updated 29 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 347AverageC$ 639FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Colorado to Toronto?

When you search for this flight from Colorado to Toronto, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Colorado to Toronto?

Cheapflights simply makes it quick and affordable to book flights from Colorado to Toronto by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Colorado to Toronto with no change fees?

Yes, we can. To see specific flights from Colorado to Toronto with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Colorado to Toronto become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Toronto from Colorado today and book when prices fit your budget.

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