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Colorado

$211+ Cheap flights from Ottawa (YOW) to Colorado

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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — DEN
Apr 11 — Apr 181
Sat 4/11
Sat 4/18
1 adult, Economy
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Cheap flight deals from Ottawa to Colorado

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 March 12, 2026.

This United Airlines deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:25 am
YOW
-
COS
1 stop6h 34m
United Airlines
Sat 9/265:13 pm
COS
-
YOW
2 stops18h 32m
United Airlines
Deal found 3/9$375
This United Airlines deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/195:20 pm
YOW
-
COS
2 stops8h 29m
United Airlines
Thu 9/246:35 pm
COS
-
YOW
2 stops12h 36m
United Airlines
Deal found 3/10$382
This Air Canada deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/116:25 am
YOW
-
COS
2 stops10h 05m
Air Canada
Wed 4/151:33 pm
COS
-
YOW
2 stops10h 03m
Air Canada
Deal found 3/8$393
This United Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/116:25 am
YOW
-
COS
1 stop6h 32m
United Airlines
Wed 4/1511:42 am
COS
-
YOW
1 stop7h 53m
United Airlines
Deal found 3/8$408
This Kiwi.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2110:35 am
YOW
-
DEN
1 stop13h 09m
Multiple Airlines
Tue 4/2811:59 pm
DEN
-
YOW
2 stops39h 26m
Multiple Airlines
Deal found 3/7$434
This Expedia deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1910:25 am
YOW
-
COS
2 stops15h 24m
Air Canada
Fri 9/257:00 am
COS
-
YOW
2 stops15h 53m
Air Canada
Deal found 3/9$448
This Kiwi.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/69:30 am
YOW
-
DEN
1 stop9h 28m
Multiple Airlines
Mon 4/135:53 pm
DEN
-
YOW
2 stops20h 58m
Multiple Airlines
Deal found 3/9$478
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/99:35 am
YOW
-
DEN
1 stop15h 33m
Multiple Airlines
Sat 4/116:00 am
DEN
-
YOW
1 stop15h 58m
Multiple Airlines
Deal found 3/11$488
This Kiwi.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/124:15 pm
YOW
-
DEN
2 stops17h 54m
Multiple Airlines
Tue 4/1410:38 am
DEN
-
YOW
1 stop8h 52m
Multiple Airlines
Deal found 3/9$489
This Gotogate deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/106:15 pm
YOW
-
DEN
2 stops19h 05m
WestJet
Tue 6/2312:15 pm
DEN
-
YOW
2 stops27h 20m
WestJet
Deal found 3/11$494
This Kiwi.com deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/53:05 pm
YOW
-
DEN
2 stops14h 54m
Multiple Airlines
Sun 4/129:25 am
DEN
-
YOW
1 stop12h 33m
Multiple Airlines
Deal found 3/8$510
This Kiwi.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2510:35 am
YOW
-
DEN
1 stop13h 09m
Multiple Airlines
Sat 5/21:09 pm
DEN
-
YOW
2 stops21h 16m
Multiple Airlines
Deal found 3/11$519

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 March 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$393
(Air Canada)

One-way from

$211
(Kiwi.com)

Popular in

January

Cheapest in

February

Average price

$585
Provider with most accurate pricing for Ottawa-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ottawa-Denver Intl flights.
Search Deals
From Ottawa to Colorado
Search Deals
One-way flight from Ottawa to Colorado
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($90 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 2,558,603 searches. Data last updated March 12, 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

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Sat 4/11

6:25 am-2:30 pm

2 stops10h 05m

Colorado Springs

Wed 4/15

1:33 pm-1:36 am

2 stops10h 03m

$393
Quickest round-trip

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Sat 4/11

6:25 am-10:57 am

1 stop6h 32m

Colorado Springs

Wed 4/15

11:42 am-9:35 pm

1 stop7h 53m

$408

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Tue 4/21

10:35 am-9:44 pm

1 stop13h 09m

Denver Intl

Tue 4/28

11:59 pm-5:25 pm

2 stops39h 26m

$434

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Tue 4/21

5:25 pm-9:54 pm

1 stop6h 29m

Colorado Springs

Sun 4/26

1:33 pm-9:11 am

2 stops17h 38m

$457

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Sun 4/5

3:05 pm-3:59 am

2 stops14h 54m

Denver Intl

Sun 4/12

9:25 am-11:58 pm

1 stop12h 33m

$510

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Mon 6/8

10:10 am-11:04 pm

1 stop14h 54m

Denver Intl

Sun 6/14

8:55 am-12:20 am

2 stops13h 25m

$560

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Tue 4/21

7:45 am-5:50 pm

1 stop12h 05m

Denver Intl

Thu 4/30

7:05 pm-6:45 am

1 stop9h 40m

$576

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Mon 6/8

10:44 am-12:53 am

1 stop16h 09m

Denver Intl

Sun 6/14

7:13 pm-10:03 am

1 stop12h 50m

$581

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Tue 4/21

10:00 am-4:28 pm

1 stop8h 28m

Denver Intl

Tue 4/28

11:38 am-10:05 pm

1 stop8h 27m

$581

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Sun 4/19

5:25 pm-12:58 am

1 stop9h 33m

Denver Intl

Thu 4/23

11:59 pm-10:03 am

1 stop8h 04m

$584

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/11

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

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 $217). Flying from Ottawa to Colorado in January is currently the most expensive (average of $382). 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 March 12, 2026.
Peruse reviews from past customers who have flown with United Airlines and Air Canada from Ottawa 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
9,418 reviews

Boarding

7.7

Food

6.6

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.3

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
9,418 reviews
United Airlines
7.4
Good
9,418 reviews

Boarding

7.7

Food

6.6

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.3

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
10,800 reviews
United Airlines
7.4
Good
9,418 reviews

Boarding

7.7

Food

6.6

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.3

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?

    Ottawa (YOW), located 6.6 mi from the city center, is the airport you fly out of when you book flights from Ottawa to Colorado.

  • How long is the flight from Ottawa to Colorado?

    A quick flight from Ottawa to Colorado can take about 6h 32m. Air Canada provides one of the quickest options available for as low as $408. The distance from Ottawa to Colorado is about 1545 mi. When browsing for deals, the options you’ll see will be for both nonstop 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, April is the cheapest month in which you can book a flight from Ottawa to Colorado (average of $217). Flying from Ottawa to Colorado in January is currently the most expensive (average of $382). 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 2,558,603 searches. Data last updated March 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$251Average$620FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$267Average$629FlexibilityNo cancel feeOn-time67%

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