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Cheap flights from Ottawa to Colorado from C$ 291

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 23/10. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — DEN
28 Aug — 4 Sep1
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 29 July 2026.

Sat 29/86:15 p.m.
YOW
-
DEN
2 stops19h 05m
WestJet
Tue 1/912:15 p.m.
DEN
-
YOW
2 stops22h 15m
WestJet
Deal found 28/7C$ 576
Mon 24/88:15 p.m.
YOW
-
DEN
1 stop17h 05m
Multiple Airlines
Mon 31/88:31 a.m.
DEN
-
YOW
2 stops13h 49m
Multiple Airlines
Deal found 27/7C$ 578
Fri 4/94:15 p.m.
YOW
-
DEN
1 stop21h 05m
WestJet
Mon 7/912:15 p.m.
DEN
-
YOW
1 stop25h 05m
WestJet
Deal found 26/7C$ 608
Wed 26/88:15 p.m.
YOW
-
DEN
1 stop17h 05m
Multiple Airlines
Mon 31/88:31 a.m.
DEN
-
YOW
2 stops33h 31m
Multiple Airlines
Deal found 28/7C$ 652
Thu 20/86:15 p.m.
YOW
-
DEN
2 stops43h 05m
WestJet
Tue 25/812:15 p.m.
DEN
-
YOW
1 stop27h 00m
WestJet
Deal found 29/7C$ 673
Wed 16/98:15 p.m.
YOW
-
DEN
1 stop17h 05m
Multiple Airlines
Wed 23/910:38 a.m.
DEN
-
YOW
2 stops11h 42m
Multiple Airlines
Deal found 27/7C$ 690
Fri 4/94:10 p.m.
YOW
-
DEN
2 stops21h 10m
Multiple Airlines
Mon 7/912:15 p.m.
DEN
-
YOW
1 stop15h 20m
Multiple Airlines
Deal found 26/7C$ 697
Wed 9/96:55 a.m.
YOW
-
DEN
2 stops12h 26m
Delta
Wed 16/911:10 a.m.
DEN
-
YOW
2 stops11h 10m
Delta
Deal found 26/7C$ 704
Wed 19/86:00 a.m.
YOW
-
COS
2 stops10h 32m
United Airlines
Thu 20/87:40 a.m.
COS
-
YOW
2 stops23h 31m
United Airlines
Deal found 25/7C$ 734
Wed 19/87:00 a.m.
YOW
-
COS
3 stops17h 53m
American Airlines
Thu 20/812:37 p.m.
COS
-
YOW
2 stops24h 18m
American Airlines
Deal found 25/7C$ 1,108

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 29 July 2026.

Round-trip from

C$ 576

One-way from

C$ 291

Popular in

January

Cheapest in

September

Average price

C$ 886
WestJet
  • WestJet
  • 29/8-1/9
  • 4 total stops
  • 41h 20m total
  • Ottawa to Colorado
Search Deals
23/10
  • 23/10
  • 3 total stops
  • 17h 27m total
  • Ottawa to Colorado
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (C$ 226 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 60 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 29 July 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

Fri 4/9

4:15 p.m.-11:20 a.m.

1 stop21h 05m

Denver Intl

Mon 7/9

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

1 stop25h 05m

C$ 608
Quickest round-trip

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Wed 9/9

6:55 a.m.-5:21 p.m.

2 stops12h 26m

Denver Intl

Wed 16/9

11:10 a.m.-12:20 a.m.

2 stops11h 10m

C$ 704

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Wed 19/8

6:25 a.m.-10:33 a.m.

1 stop6h 08m

Colorado Springs

Thu 20/8

7:40 a.m.-9:11 a.m.

2 stops23h 31m

C$ 734

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Tue 8/9

6:55 a.m.-9:13 p.m.

2 stops16h 18m

Denver Intl

Tue 15/9

7:15 a.m.-12:20 a.m.

2 stops15h 05m

C$ 755

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Mon 24/8

6:55 a.m.-11:20 a.m.

2 stops30h 25m

Denver Intl

Mon 31/8

12:15 p.m.-11:35 a.m.

2 stops21h 20m

C$ 762

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Tue 25/8

6:55 a.m.-7:52 p.m.

2 stops14h 57m

Denver Intl

Fri 28/8

12:59 a.m.-5:35 p.m.

2 stops14h 36m

C$ 768

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Mon 24/8

6:55 a.m.-11:20 a.m.

2 stops30h 25m

Denver Intl

Mon 31/8

12:15 p.m.-7:47 p.m.

3 stops29h 32m

C$ 779

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Wed 16/9

6:55 a.m.-9:13 p.m.

2 stops16h 18m

Denver Intl

Wed 23/9

6:00 a.m.-12:20 a.m.

2 stops16h 20m

C$ 854

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Thu 20/8

6:00 a.m.-9:50 a.m.

3 stops29h 50m

Denver Intl

Tue 25/8

12:15 p.m.-11:35 a.m.

2 stops21h 20m

C$ 882

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Wed 19/8

7:00 a.m.-10:53 p.m.

3 stops17h 53m

Colorado Springs

Thu 20/8

12:37 p.m.-2:55 p.m.

2 stops24h 18m

C$ 1,108

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/7

Showing 1-10 of 18 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

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

Currently, September is the cheapest month in which you can book a flight from Ottawa to Colorado (average of C$ 411). Flying from Ottawa to Colorado in January is currently the most expensive (average of C$ 1,278). 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?

Airfare is typical for this route at the moment.
Ottawa to Colorado flights typically cost between C$ 470 and C$ 940 in August.
The cheapest round-trip price found within the last 5 days was C$ 576 on WestJet (29 Aug-1 Sep).

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 29 July 2026.
Get a feel of what it's like to fly with United Airlines and Air 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
10,052 reviews
Check prices

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

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
10,052 reviews
United Airlines
7.4
Good
10,052 reviews
Check prices

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

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
11,405 reviews
United Airlines
7.4
Good
10,052 reviews
Check prices

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

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.

  • How long is the flight from Ottawa to Colorado?

    A quick flight from Ottawa to Colorado can take about 6h 08m. Delta provides one of the quickest options available for as low as C$ 734. 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, September is the cheapest month in which you can book a flight from Ottawa to Colorado (average of C$ 411). Flying from Ottawa to Colorado in January is currently the most expensive (average of C$ 1,278). 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 2 airlines flying from Ottawa to Colorado

Discover the top 2 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 29 July 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 311AverageC$ 588FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapestC$ 440AverageC$ 815FlexibilityNo 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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