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Cheap flights from Ottawa to Colorado from C$ 283

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — DEN
27 May — 3 Jun1
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 27 April 2026.

Thu 7/51:20 p.m.
YOW
-
DEN
1 stop24h 00m
WestJet
Sun 17/512:15 p.m.
DEN
-
YOW
2 stops22h 15m
WestJet
Deal found 23/4C$ 461
Thu 18/64:15 p.m.
YOW
-
DEN
1 stop21h 05m
WestJet
Wed 24/612:15 p.m.
DEN
-
YOW
2 stops22h 15m
WestJet
Deal found 25/4C$ 497
Thu 11/67:20 a.m.
YOW
-
DEN
1 stop30h 00m
WestJet
Fri 19/612:15 p.m.
DEN
-
YOW
1 stop25h 05m
WestJet
Deal found 23/4C$ 518
Wed 23/96:15 p.m.
YOW
-
DEN
2 stops19h 05m
WestJet
Sun 27/912:15 p.m.
DEN
-
YOW
2 stops22h 15m
WestJet
Deal found 26/4C$ 519
Fri 8/56:55 a.m.
YOW
-
COS
2 stops16h 32m
Delta
Wed 13/51:55 p.m.
COS
-
YOW
2 stops8h 25m
Delta
Deal found 22/4C$ 577
Tue 22/910:25 a.m.
YOW
-
COS
2 stops15h 24m
United Airlines
Thu 24/911:55 a.m.
COS
-
YOW
2 stops23h 50m
United Airlines
Deal found 22/4C$ 660
Wed 3/65:05 a.m.
YOW
-
COS
2 stops11h 35m
United Airlines
Sat 6/610:23 a.m.
COS
-
YOW
2 stops11h 31m
United Airlines
Deal found 25/4C$ 709
Wed 3/66:00 a.m.
YOW
-
COS
2 stops10h 40m
Air Canada
Sat 6/69:20 a.m.
COS
-
YOW
2 stops13h 26m
Air Canada
Deal found 23/4C$ 745
Fri 8/55:25 p.m.
YOW
-
COS
1 stop6h 36m
United Airlines
Wed 13/55:12 p.m.
COS
-
YOW
2 stops13h 59m
United Airlines
Deal found 22/4C$ 794

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 27 April 2026.

Round-trip from

C$ 461

One-way from

C$ 283

Popular in

January

Cheapest in

February

Average price

C$ 768
WestJet
  • WestJet
  • 7/5-17/5
  • 3 total stops
  • 46h 15m total
  • Ottawa to Colorado
Search Deals
WestJet
  • WestJet
  • 4/6
  • 2 total stops
  • 19h 05m total
  • Ottawa to Colorado
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (C$ 164 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (C$ 65 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 27 April 2026.
Use the filters below to find and compare flights from Ottawa to Colorado that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Thu 7/5

1:20 p.m.-11:20 a.m.

1 stop24h 00m

Denver Intl

Sun 17/5

12:15 p.m.-12:30 p.m.

2 stops22h 15m

C$ 461

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Wed 23/9

8:15 p.m.-11:20 a.m.

1 stop17h 05m

Denver Intl

Sun 27/9

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

1 stop27h 00m

C$ 536

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Thu 21/5

7:20 a.m.-11:20 a.m.

1 stop30h 00m

Denver Intl

Thu 28/5

12:15 p.m.-3:20 p.m.

1 stop25h 05m

C$ 540

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Fri 8/5

6:55 a.m.-9:27 p.m.

2 stops16h 32m

Colorado Springs

Wed 13/5

1:55 p.m.-12:20 a.m.

2 stops8h 25m

C$ 577

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Sat 6/6

12:25 p.m.-8:15 p.m.

2 stops9h 50m

Denver Intl

Sat 13/6

6:05 a.m.-5:35 p.m.

2 stops9h 30m

C$ 590
Quickest round-trip

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Wed 3/6

6:55 a.m.-1:59 p.m.

2 stops9h 04m

Denver Intl

Sat 6/6

6:05 a.m.-5:35 p.m.

2 stops9h 30m

C$ 600

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Thu 18/6

1:20 p.m.-11:20 a.m.

1 stop24h 00m

Denver Intl

Wed 24/6

12:15 p.m.-5:35 a.m.

1 stop15h 20m

C$ 600

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Wed 10/6

6:55 a.m.-8:44 p.m.

2 stops15h 49m

Denver Intl

Wed 17/6

5:45 a.m.-12:20 a.m.

2 stops16h 35m

C$ 652

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Tue 22/9

10:25 a.m.-11:49 p.m.

2 stops15h 24m

Colorado Springs

Thu 24/9

11:55 a.m.-1:45 p.m.

2 stops23h 50m

C$ 660

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Wed 3/6

5:05 a.m.-2:40 p.m.

2 stops11h 35m

Colorado Springs

Sat 6/6

10:23 a.m.-11:54 p.m.

2 stops11h 31m

C$ 709

Flights are sorted by cheapest round-trip flights first.

Deals found on 22/4

Showing 1-10 of 20 resultsSorted by cheapest first
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

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

Booking 62 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ottawa to Colorado. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, November is the cheapest month in which you can book a flight from Ottawa to Colorado (average of C$ 258). Flying from Ottawa to Colorado in January is currently the most expensive (average of C$ 821). 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.

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

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 27 April 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
9,665 reviews
Check prices

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Crew

8.1

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
9,665 reviews
United Airlines
7.4
Good
9,665 reviews
Check prices

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Crew

8.1

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
3,327 reviews
United Airlines
7.4
Good
9,665 reviews
Check prices

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Crew

8.1

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
10,974 reviews
United Airlines
7.4
Good
9,665 reviews
Check prices

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Entertainment

7.1

Crew

8.1

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.

  • How long is the flight from Ottawa to Colorado?

    A quick flight from Ottawa to Colorado can take about 15h 24m. WestJet provides one of the quickest options available for as low as C$ 660. The distance from Ottawa to Colorado is about 2486 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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, November is the cheapest month in which you can book a flight from Ottawa to Colorado (average of C$ 258). Flying from Ottawa to Colorado in January is currently the most expensive (average of C$ 821). 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 Ottawa to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
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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 27 April 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 301AverageC$ 598FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 326AverageC$ 478FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 391AverageC$ 693FlexibilityNo 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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