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Cheap flights from Canada to Colorado from C$ 170

YYZ — DEN
17 Oct — 24 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Canada to Colorado

Enter your travel dates to find the best prices.

Cheapest flights from Canada to Colorado

Wed 28/106:00 a.m. -
1 stop6h 38m
Wed 4/118:15 a.m. -
1 stop8h 14m
Deal found 13/9C$ 287
Thu 8/105:00 a.m. -
1 stop5h 20m
Sun 11/1012:15 p.m. -
1 stop7h 55m
Deal found 14/9C$ 291
Mon 12/106:00 a.m. -
Nonstop2h 34m
Wed 14/107:16 p.m. -
Nonstop2h 32m
Deal found 13/9C$ 298
Fri 2/1012:30 p.m. -
2 stops10h 38m
Sun 4/107:50 p.m. -
1 stop5h 54m
Deal found 12/9C$ 300
Mon 12/106:00 a.m. -
Nonstop2h 34m
Mon 19/107:50 p.m. -
1 stop5h 54m
Deal found 12/9C$ 305
Sun 4/108:45 a.m. -
Nonstop2h 35m
Mon 5/1012:15 p.m. -
Nonstop2h 30m
Deal found 16/9C$ 307
Fri 4/129:07 a.m. -
1 stop4h 46m
Tue 8/127:00 a.m. -
1 stop14h 37m
Deal found 13/9C$ 311
Thu 29/106:00 a.m. -
1 stop6h 38m
Thu 5/118:15 a.m. -
1 stop8h 14m
Deal found 14/9C$ 314
Thu 8/106:00 a.m. -
1 stop6h 20m
Sun 11/1012:15 p.m. -
1 stop7h 00m
Deal found 13/9C$ 315
Wed 28/102:10 p.m. -
2 stops9h 39m
Wed 4/1110:37 p.m. -
1 stop12h 38m
Deal found 13/9C$ 318
Thu 1/1012:30 p.m. -
2 stops10h 38m
Sun 4/107:50 p.m. -
1 stop5h 54m
Deal found 15/9C$ 319
Thu 10/1212:50 p.m. -
1 stop4h 23m
Sun 13/128:15 a.m. -
1 stop10h 58m
Deal found 16/9C$ 344

Find flight deals from Canada to Colorado

Round-trip from

C$ 287

One-way from

C$ 170

Popular in

February

Cheapest in

November

Average price

C$ 675

Good round-trip deal

C$ 587 or less

Good one-way deal

C$ 344 or less
Air Canada
  • Air Canada
  • 28/10-4/11
  • 2 total stops
  • 14h 52m total
  • Canada to Colorado
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WestJet
  • WestJet
  • 12/10-31/12
  • 1 total stop
  • 5h 20m total
  • Canada to Colorado
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2026
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Price to beat on a round-trip flight from Canada to Colorado.
Search Deals
Price to beat on a one-way flight from Canada to Colorado.
Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CalgaryDenver

YYC Calgary - DEN Denver Intl

YYCDEN

Calgary

Wed 7/10

6:00 a.m.-8:34 a.m.

Nonstop2h 34m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 185

CalgaryDenver

YYC Calgary - DEN Denver Intl

YYCDEN

Calgary

Sat 3/10

6:00 a.m.-8:34 a.m.

Nonstop2h 34m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 185

ReginaDenver

YQR Regina - DEN Denver Intl

YQRDEN

Regina

Mon 12/10

6:00 a.m.-11:20 a.m.

1 stop5h 20m

Denver Intl

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 190

CalgaryDenver

YYC Calgary - DEN Denver Intl

YYCDEN

Calgary

Sat 17/10

4:25 p.m.-11:08 p.m.

1 stop6h 43m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 194

CalgaryDenver

YYC Calgary - DEN Denver Intl

YYCDEN

Calgary

Thu 8/10

6:00 a.m.-8:34 a.m.

Nonstop2h 34m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 202

CalgaryDenver

YYC Calgary - DEN Denver Intl

YYCDEN

Calgary

Wed 28/10

2:06 p.m.-4:36 p.m.

Nonstop2h 30m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 204

CalgaryDenver

YYC Calgary - DEN Denver Intl

YYCDEN

Calgary

Thu 26/11

7:00 a.m.-8:37 a.m.

Nonstop1h 37m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 204
Quickest round-trip

CalgaryDenver

YYC Calgary - DEN Denver Intl

YYCDEN

Calgary

Wed 10/3

3:06 p.m.-4:42 p.m.

Nonstop1h 36m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 213

CalgaryDenver

YYC Calgary - DEN Denver Intl

YYCDEN

Calgary

Tue 16/3

6:00 a.m.-8:43 a.m.

Nonstop2h 43m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 213

CalgaryDenver

YYC Calgary - DEN Denver Intl

YYCDEN

Calgary

Sat 21/11

7:00 a.m.-8:37 a.m.

Nonstop1h 37m

Denver Intl

Wed 31/12

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

Nonstop0h 00m

C$ 220

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

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

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

Cheapflights Insights

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

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

Currently, October is the cheapest month in which you can book a flight from Canada to Colorado (average of C$ 653). Flying from Canada to Colorado in December is currently the most expensive (average of C$ 798). 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 CA to CO?

One of the essential ways to save on airfare from Canada to Colorado is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 4% on airfare.

Weekly flight availability from Canada to Colorado

The most flights from CA0 to USCO are scheduled on a Monday (10 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (8 on average).

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

To ensure you get the cheapest price possible for a flight from Canada to Colorado, you should look to book at least 42 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest day to fly from Canada to Colorado?

Travelers seeking maximum savings on their Canada to Colorado flight should consider departing on Thursday afternoons when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Colorado

Read reviews from past customers who have flown Alaska Airlines,Delta, andUnited Airlines from Canada to Colorado. 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
7.9
Good
12,937 reviews
Check prices

Overall

7.9

Comfort

7.8

Crew

8.5

Food

7.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Alaska Airlines
7.9
Good
12,937 reviews
Alaska Airlines
7.9
Good
12,937 reviews
Check prices

Overall

7.9

Comfort

7.8

Crew

8.5

Food

7.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Delta
7.8
Good
8,579 reviews
Alaska Airlines
7.9
Good
12,937 reviews
Check prices

Overall

7.9

Comfort

7.8

Crew

8.5

Food

7.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
United Airlines
7.4
Good
10,214 reviews
Alaska Airlines
7.9
Good
12,937 reviews
Check prices

Overall

7.9

Comfort

7.8

Crew

8.5

Food

7.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
WestJet
7.2
Good
3,446 reviews
Alaska Airlines
7.9
Good
12,937 reviews
Check prices

Overall

7.9

Comfort

7.8

Crew

8.5

Food

7.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.
Air Canada
7.1
Good
11,640 reviews
Alaska Airlines
7.9
Good
12,937 reviews
Check prices

Overall

7.9

Comfort

7.8

Crew

8.5

Food

7.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
2.0
Mediocre

Chris,Aug 2026

GEG - SFO

Our flight was delayed multiple times over the course of the day for a total of almost ten hours. It was supposed to be a two-hour flight from San Francisco to Spokane. It turned into a nightmare of waiting all day in the airport, not knowing whether we would fly or not, whether we would miss my son's wedding and lose the expenses already incurred for car rental and accommodations. The Alaska staff seemed clueless and never gave us any convincing or definitive information. The airline offered food vouchers and discounts on future flights to make up for the trouble. However, the information about these concessions was not timely, nor were the vouchers themselves very useful. We were a family group of four people. The airline decided to give us one food voucher for $96, which is barely enough for four to get a sandwich and a drink each. Only by persistently addressing the airport food retailers were we able to get anything at all. Then, taking the exact opposite approach, the airline sent me, the original purchaser of all four tickets and the only email account they had, four vouchers for $150 each in the names of each of the four passengers. So, any one of us could get a discount on a future flight with Alaska in that amount. But I originally paid for all the tickets. It makes no sense, except to suggest that Alaska chooses the way to distribute vouchers that seems most likely to minimize the probability that they will be utilized. In my opinion, I should be offered a total refund for the ordeal we were forced to endure or at least a discount voucher for the entire $600.

Related info for your journey

  • How long is the flight from Canada to Colorado?

    Airlines like United Airlines, Delta, and Air Canada fly from Canada to Colorado in about 1h 30m. The time it takes to get you to your destination can typically vary by up to 12h 38m. The distance from Canada to Colorado is about 1445 km. This flight may include one or multiple stops.

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

    To fly one-way, consider booking your trip with WestJet, which is currently one of the cheapest options available, starting at C$ 153. United Airlines flights start at C$ 185 while deals on Air Canada start at C$ 222 one-way.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Canada to Colorado (average of C$ 653). Flying from Canada to Colorado in December is currently the most expensive (average of C$ 798). 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

Top 6 airlines flying from Canada to Colorado

AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 142AverageC$ 338FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapestC$ 189AverageC$ 793FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 190AverageC$ 800FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 232AverageC$ 454FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Alaska AirlinesCheapestC$ 399AverageC$ 479FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
American AirlinesCheapestC$ 776AverageC$ 811FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Canada to Colorado. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Canada to Colorado for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes, we can. To see specific flights from Canada to Colorado 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 Canada to Colorado become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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