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Cheap flights from Ottawa to Colorado from C$ 387

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 13/3. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — DEN
27 Feb — 6 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Ottawa to Colorado

Enter your travel dates to find the best prices.

Cheapest flights from Ottawa to Colorado
Explore the most affordable flight options available from Ottawa to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 January 2026.

Mon 23/27:00 a.m.
YOW
-
DEN
2 stops30h 56m
Multiple Airlines
Mon 2/35:01 a.m.
DEN
-
YOW
1 stop17h 01m
Multiple Airlines
Deal found 25/1C$ 448
Sat 22/82:48 p.m.
YOW
-
COS
2 stops11h 11m
United Airlines
Sat 29/86:35 p.m.
COS
-
YOW
2 stops12h 36m
United Airlines
Deal found 26/1C$ 462
Mon 9/24:20 p.m.
YOW
-
DEN
1 stop18h 00m
Multiple Airlines
Mon 2/36:21 p.m.
DEN
-
YOW
2 stops28h 18m
Multiple Airlines
Deal found 27/1C$ 569
Tue 10/210:35 a.m.
YOW
-
DEN
1 stop12h 11m
Multiple Airlines
Mon 2/36:21 p.m.
DEN
-
YOW
2 stops28h 18m
Multiple Airlines
Deal found 27/1C$ 626
Sun 15/23:55 p.m.
YOW
-
DEN
2 stops33h 04m
Multiple Airlines
Thu 19/26:00 a.m.
DEN
-
YOW
1 stop13h 30m
Multiple Airlines
Deal found 26/1C$ 637
Fri 3/49:30 a.m.
YOW
-
DEN
1 stop15h 39m
Multiple Airlines
Mon 6/411:59 p.m.
DEN
-
YOW
1 stop15h 14m
Multiple Airlines
Deal found 27/1C$ 651
Wed 4/24:20 p.m.
YOW
-
DEN
1 stop18h 10m
Multiple Airlines
Sun 1/39:27 a.m.
DEN
-
YOW
2 stops37h 12m
Multiple Airlines
Deal found 27/1C$ 670
Sat 7/24:20 p.m.
YOW
-
DEN
2 stops23h 16m
Multiple Airlines
Mon 2/36:00 a.m.
DEN
-
YOW
1 stop9h 05m
Multiple Airlines
Deal found 27/1C$ 682
Thu 12/33:55 p.m.
YOW
-
DEN
2 stops23h 32m
Multiple Airlines
Mon 23/310:47 p.m.
DEN
-
YOW
1 stop20h 43m
Multiple Airlines
Deal found 26/1C$ 698
Mon 2/27:27 p.m.
YOW
-
COS
2 stops17h 30m
United Airlines
Fri 6/23:30 p.m.
COS
-
YOW
2 stops25h 22m
United Airlines
Deal found 25/1C$ 854

Find flight deals from Ottawa to Colorado

Keep the following information in mind while searching for Ottawa to Colorado flight deals. Data was last updated 28 January 2026.

Round-trip from

C$ 448

One-way from

C$ 387

Popular in

January

Cheapest in

September

Average price

C$ 1,178
23/2-2/3
  • 23/2-2/3
  • 3 total stops
  • 47h 57m total
  • Ottawa to Colorado
Search Deals
13/3
  • 13/3
  • 3 total stops
  • 23h 52m total
  • Ottawa to Colorado
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (C$ 307 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (C$ 59 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ottawa to Colorado 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 28 January 2026.
Use the filters below to find and compare flights from Ottawa to Colorado that are best for you.

Fly from

Ottawa

Fly to

Colorado

Route

Depart

Return

Price

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Mon 23/2

7:00 a.m.-11:56 a.m.

2 stops30h 56m

Denver Intl

Mon 2/3

5:01 a.m.-12:02 a.m.

1 stop17h 01m

C$ 448

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Mon 9/2

4:20 p.m.-8:20 a.m.

1 stop18h 00m

Denver Intl

Mon 2/3

6:21 p.m.-12:39 a.m.

2 stops28h 18m

C$ 569

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Fri 3/4

9:30 a.m.-11:09 p.m.

1 stop15h 39m

Denver Intl

Mon 6/4

11:59 p.m.-5:13 p.m.

1 stop15h 14m

C$ 651

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Sat 7/2

4:20 p.m.-1:36 p.m.

2 stops23h 16m

Denver Intl

Mon 2/3

6:00 a.m.-5:05 p.m.

1 stop9h 05m

C$ 682

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Thu 12/3

3:55 p.m.-1:27 p.m.

2 stops23h 32m

Denver Intl

Mon 23/3

10:47 p.m.-9:30 p.m.

1 stop20h 43m

C$ 698

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Tue 10/2

10:35 a.m.-8:46 p.m.

1 stop12h 11m

Denver Intl

Mon 2/3

6:00 a.m.-5:05 p.m.

1 stop9h 05m

C$ 742

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Thu 28/5

6:15 p.m.-11:20 a.m.

2 stops43h 05m

Denver Intl

Sat 6/6

12:15 p.m.-5:20 p.m.

1 stop27h 05m

C$ 745

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Sun 8/2

4:15 p.m.-12:19 p.m.

2 stops22h 04m

Denver Intl

Mon 2/3

6:00 a.m.-5:05 p.m.

1 stop9h 05m

C$ 752

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Thu 28/5

9:30 a.m.-5:00 p.m.

1 stop9h 30m

Denver Intl

Sat 6/6

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

1 stop8h 06m

C$ 772

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Fri 13/3

3:35 p.m.-1:27 p.m.

3 stops23h 52m

C$ 387

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/1

Showing 1-10 of 16 results
1
2

Best time to book a flight from Ottawa to Colorado

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

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

Currently, April is the cheapest month in which you can book a flight from Ottawa to Colorado (average of C$ 253). Flying from Ottawa to Colorado in January is currently the most expensive (average of C$ 522). 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.

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated 28 January 2026.
Get a feel of what it's like to fly with United Airlines,WestJet, andAir Canada from Ottawa to Colorado by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,208 reviews
Check prices

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,208 reviews
United Airlines
7.4
Good
9,208 reviews
Check prices

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
WestJet
7.2
Good
3,251 reviews
United Airlines
7.4
Good
9,208 reviews
Check prices

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Air Canada
7.1
Good
10,666 reviews
United Airlines
7.4
Good
9,208 reviews
Check prices

Entertainment

7.1

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Boarding

7.7

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Related info for your journey

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

  • What airport do you fly from for flights from Ottawa to Colorado?

    For a flight from Ottawa to Colorado, you will be flying from Ottawa. Ottawa (YOW) is just 10.6 km from the centre of the city.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Ottawa to Colorado (average of C$ 253). Flying from Ottawa to Colorado in January is currently the most expensive (average of C$ 522). 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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Top 3 airlines flying from Ottawa to Colorado

Discover the top 3 airlines that operate flights from Ottawa to Colorado. 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 28 January 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 301AverageC$ 716FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 326AverageC$ 462FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 426AverageC$ 655FlexibilityNo 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 Ottawa to Colorado?

Cheapflights helps you search for flights from Ottawa 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 Ottawa to Colorado?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ottawa to Colorado.

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

Need flexible booking options for your flight to Colorado from Ottawa? 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 Ottawa to Colorado become cheaper?

Of course! You can now track prices for flights from Ottawa to Colorado and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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