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Cheap flights from Toronto to Colorado from C$ 225

YTO — DEN
9 Oct — 16 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Toronto to Colorado

Enter your travel dates to find the best prices.

Cheapest flights from Toronto to Colorado

Tue 29/91:45 p.m. -
1 stop20h 30m
Fri 2/108:55 p.m. -
1 stop15h 30m
Deal found 5/9C$ 563
Tue 29/912:55 p.m. -
1 stop10h 54m
Fri 2/1012:15 p.m. -
1 stop8h 30m
Deal found 7/9C$ 563
Sat 26/910:50 a.m. -
1 stop8h 26m
Wed 7/1010:49 p.m. -
2 stops39h 11m
Deal found 4/9C$ 564
Fri 13/114:35 p.m. -
1 stop17h 51m
Mon 16/118:55 p.m. -
1 stop16h 11m
Deal found 6/9C$ 565
Thu 29/108:40 a.m. -
Nonstop3h 55m
Thu 5/118:15 a.m. -
1 stop9h 42m
Deal found 6/9C$ 565
Tue 20/109:15 a.m. -
2 stops24h 51m
Tue 27/108:55 p.m. -
1 stop16h 11m
Deal found 5/9C$ 567
Fri 2/1012:55 p.m. -
1 stop10h 54m
Tue 6/107:30 a.m. -
2 stops11h 25m
Deal found 5/9C$ 567
Thu 1/1012:55 p.m. -
1 stop10h 54m
Sat 3/101:10 p.m. -
2 stops14h 35m
Deal found 5/9C$ 568
Thu 29/1012:20 p.m. -
2 stops10h 07m
Thu 5/1111:25 a.m. -
1 stop6h 31m
Deal found 6/9C$ 570
Wed 23/94:45 p.m. -
2 stops24h 52m
Sun 27/912:15 p.m. -
1 stop8h 30m
Deal found 5/9C$ 571
Sat 26/910:50 a.m. -
1 stop8h 26m
Sun 8/118:55 p.m. -
2 stops21h 04m
Deal found 5/9C$ 572
Wed 14/106:40 p.m. -
Nonstop3h 37m
Sat 17/106:05 p.m. -
Nonstop3h 11m
Deal found 3/9C$ 572

Find flight deals from Toronto to Colorado

Round-trip from

C$ 563

One-way from

C$ 225

Popular in

October

Cheapest in

November

Average price

C$ 669

Good round-trip deal

C$ 656 or less

Good one-way deal

C$ 340 or less
29/9-2/10
  • 29/9-2/10
  • 2 total stops
  • 36h 00m total
  • Toronto to Colorado
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18/10-31/12
  • 18/10-31/12
  • 1 total stop
  • 24h 05m total
  • Toronto to Colorado
Search Deals
High demand for flights, 2% potential price rise
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Cheapest flight prices on average. 0% potential price decrease (C$ 10 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Price to beat on a round-trip flight from Toronto (YTO) to Colorado.
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Price to beat on a one-way flight from Toronto (YTO) to Colorado.
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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TorontoDenver

YTZ Toronto Island - DEN Denver Intl

YTZDEN

Toronto Island

Sat 24/10

10:50 a.m.-5:21 p.m.

1 stop8h 31m

Denver Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 236

TorontoDenver

YKF Toronto Region of Waterloo Intl - DEN Denver Intl

YKFDEN

Toronto Region of Waterloo Intl

Sat 19/9

8:40 p.m.-11:20 a.m.

1 stop16h 40m

Denver Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 239

TorontoDenver

YTZ Toronto Island - DEN Denver Intl

YTZDEN

Toronto Island

Sun 18/10

10:50 a.m.-2:50 p.m.

1 stop30h 00m

Denver Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 240

TorontoDenver

YYZ Toronto Pearson Intl - DEN Denver Intl

YYZDEN

Toronto Pearson Intl

Sun 18/10

4:50 p.m.-8:06 a.m.

2 stops41h 16m

Denver Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 308

TorontoDenver

YTZ Toronto Island - DEN Denver Intl

YTZDEN

Toronto Island

Mon 19/10

1:40 p.m.-8:06 a.m.

2 stops20h 26m

Denver Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 309

TorontoDenver

YTZ Toronto Island - DEN Denver Intl

YTZDEN

Toronto Island

Sat 17/10

10:10 a.m.-9:49 p.m.

2 stops13h 39m

Denver Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 316

TorontoDenver

YYZ Toronto Pearson Intl - DEN Denver Intl

YYZDEN

Toronto Pearson Intl

Wed 30/9

4:55 p.m.-7:37 p.m.

2 stops28h 42m

Denver Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 316

TorontoDenver

YYZ Toronto Pearson Intl - DEN Denver Intl

YYZDEN

Toronto Pearson Intl

Fri 16/10

8:10 a.m.-10:37 p.m.

1 stop16h 27m

Denver Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 317
Quickest round-trip

TorontoDenver

YYZ Toronto Pearson Intl - DEN Denver Intl

YYZDEN

Toronto Pearson Intl

Tue 29/9

8:45 a.m.-10:22 a.m.

Nonstop3h 37m

Denver Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 324

HamiltonDenver

YHM Hamilton - DEN Denver Intl

YHMDEN

Hamilton

Sun 20/9

6:10 p.m.-11:20 a.m.

1 stop19h 10m

Denver Intl

Wed 31/12

12:00 a.m.-2:00 a.m.

Nonstop0h 00m

C$ 327

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/9

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

Have a flexible travel schedule? Discover the best time to fly to Colorado from Toronto with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Toronto to Colorado

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

Currently, October is the cheapest month in which you can book a flight from Toronto to Colorado (average of C$ 644). Flying from Toronto to Colorado in January is currently the most expensive (average of C$ 816). 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 CO?

When flying from Toronto to Colorado, 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 Toronto to Colorado

The most flights from YTO to USCO 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 (2 on average).

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

Airfare is below average for this route at the moment.
Toronto to Colorado flights typically cost between C$ 579 and C$ 776 in September.
The cheapest round-trip price found within the last 5 days was C$ 563 on Multiple Airlines (29 Sep-2 Oct).

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

Booking 68 days in advance of your planned departure date is, on average, the best time to get cheap flights from Toronto to Colorado. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Colorado

Check out reviews from past customers who have flown with United Airlines and Air Canada from Toronto to Colorado to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,191 reviews
Check prices

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
United Airlines
7.4
Good
10,191 reviews
United Airlines
7.4
Good
10,191 reviews
Check prices

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
Air Canada
7.1
Good
11,603 reviews
United Airlines
7.4
Good
10,191 reviews
Check prices

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.7

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible

Related info for your journey

  • How long is the flight from Toronto to Colorado?

    Departing from Toronto to Colorado will take you 6h 58m. The distance from Toronto to Colorado is about 2155 km. Both multi-stop and direct flights can be found to your destination and back.

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

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

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

    No one likes to see their flight delayed. When booking a flight from Toronto to Colorado consider choosing Air Canada (63%), United Airlines (63%) or Brussels Airlines (35%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Toronto to Colorado?

    On average you can expect to pay C$ 1,249 for a flight from Toronto to Colorado. The cheapest flight overall is C$ 263 while the most popular route, (Toronto Pearson Intl - Denver Intl) is currently priced at C$ 481.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Toronto to Colorado (average of C$ 644). Flying from Toronto to Colorado in January is currently the most expensive (average of C$ 816). 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

Alternative routes for Toronto to Colorado

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Pearson Intl to Atlanta flights
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Hamilton to John F Kennedy Intl flights
Hamilton to Fort Lauderdale flights
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Pearson Intl to Ontario flights
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Top 4 airlines flying from Toronto to Colorado

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 396AverageC$ 814FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 403AverageC$ 448FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 475AverageC$ 657FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapestC$ 768AverageC$ 802FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

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

Cheapflights helps you search for flights from Toronto to Colorado via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Toronto to Colorado for you. Better yet — we are completely free to use.

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

Need flexible booking options for your flight to Colorado from Toronto? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

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

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