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$214+ Cheap flights from Colorado to Ottawa (YOW)

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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — YOW
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Colorado to Ottawa

Keep the following information in mind while searching for Colorado to Ottawa flight deals. Data was last updated July 31, 2025.

Round-trip from

$366
(Trip.com)

One-way from

$214
(United Airlines)

Popular in

January

Cheapest in

October

Average price

$482
From Colorado to Ottawa
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One-way flight from Colorado to Ottawa
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Highest demand for flights based on searches. 14% potential increase in price ($85 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Colorado to Ottawa

Cheapest flights from Colorado to Ottawa
Explore the most affordable flight options available from Colorado to Ottawa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Trip.com deal was found by Cheapflights users on 7/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2512:15 pmDEN - YOW
1 stop10h 26mWestJet
Thu 8/287:15 pmYOW - DEN
1 stop18h 12mWestJet
Deal found 7/30$366
This Air Canada deal was found by Cheapflights users on 7/29. 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.
Thu 9/187:05 pmDEN - YOW
1 stop11h 18mAir Canada
Fri 9/269:35 amYOW - DEN
1 stop11h 48mAir Canada
Deal found 7/29$374
This Kiwi.com deal was found by Cheapflights users on 7/31. 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 9/2512:15 pmDEN - YOW
1 stop10h 25mMultiple Airlines
Mon 9/297:00 amYOW - DEN
2 stops29h 14mMultiple Airlines
Deal found 7/31$381
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Wed 9/1010:12 amDEN - YOW
1 stop6h 40mUnited Airlines
Mon 9/157:29 pmYOW - DEN
1 stop6h 30mUnited Airlines
Deal found 7/30$481
This Air Canada deal was found by Cheapflights users on 7/31. 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.
Sun 9/146:00 amCOS - YOW
1 stop9h 06mMultiple Airlines
Sun 9/2110:37 amYOW - COS
1 stop26h 19mMultiple Airlines
Deal found 7/31$810
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Sun 9/146:25 pmCOS - YOW
2 stops13h 33mUnited Airlines
Sun 9/215:25 pmYOW - COS
1 stop19h 31mUnited Airlines
Deal found 7/31$843

Cheapflights Fare Finder

 
Customize your flight search to find flights from Colorado to Ottawa 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 July 31, 2025.
Use the filters below to find and compare flights from Colorado to Ottawa that are best for you.

Fly from

Colorado

Fly to

Ottawa

Route

Depart

Return

Price

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Mon 8/25

12:15 pm-12:41 am

1 stop10h 26m

Ottawa

Thu 8/28

7:15 pm-11:27 am

1 stop18h 12m

$366

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 9/18

7:05 pm-8:23 am

1 stop11h 18m

Ottawa

Fri 9/26

9:35 am-7:23 pm

1 stop11h 48m

$374

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Thu 9/25

12:15 pm-12:40 am

1 stop10h 25m

Ottawa

Mon 9/29

7:00 am-10:14 am

2 stops29h 14m

$381

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 9/10

10:12 am-6:52 pm

1 stop6h 40m

Ottawa

Mon 9/15

7:29 pm-11:59 pm

1 stop6h 30m

$481

Colorado SpringsOttawa

COS - YOW

COSYOW

Colorado Springs

Sun 9/14

6:00 am-5:06 pm

1 stop9h 06m

Ottawa

Sun 9/21

10:37 am-10:56 am

1 stop26h 19m

$810

Colorado SpringsOttawa

COS - YOW

COSYOW

Colorado Springs

Sun 9/14

6:25 pm-9:58 am

2 stops13h 33m

Ottawa

Sun 9/21

5:25 pm-10:56 am

1 stop19h 31m

$843

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 9/10

11:59 pm-9:58 am

1 stop7h 59m

$214

DenverOttawa

DEN - YOW

DENYOW

Denver Intl

Wed 9/10

8:00 am-1:03 pm

3 stops27h 03m

$225

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Best time to book a flight from Colorado to Ottawa

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

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

Currently, January is the cheapest month in which you can book a flight from Colorado to Ottawa (average of $294). Flying from Colorado to Ottawa in September is currently the most expensive (average of $428). 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 CO to YOW?

Find hourly flight availability from Colorado to Ottawa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

When flying from Colorado to Ottawa, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Ottawa

Get insights into the airlines that provide service to Ottawa. 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 Ottawa. Reviews last updated July 31, 2025.
Read through reviews of airlines operating flights from Colorado to Ottawa, such as United Airlines, WestJet, and Air Canada. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,900 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Miz,Oct 2024

EWR - YYZ

I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.
United Airlines
7.4
Good
8,900 reviews
United Airlines
7.4
Good
8,900 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Miz,Oct 2024

EWR - YYZ

I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.
WestJet
7.2
Good
2,978 reviews
United Airlines
7.4
Good
8,900 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Miz,Oct 2024

EWR - YYZ

I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.
Air Canada
7.1
Good
9,851 reviews
United Airlines
7.4
Good
8,900 reviews

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Miz,Oct 2024

EWR - YYZ

I booked on United but it was really Air Canada. It was very confusing when I went to the airport. The ride to NY was very turbulent and shaky. The ride back was better. It would be nicer with more leg room and to get rid of the tilting the seat back thing. Fine for an hour flight but any longer would have been not great. Please put subtitles on the programs so we don;t have t use headphones if we forget them.

Related info for your journey

Find useful and relevant information for your journey from Colorado to Ottawa. 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 into for flights to Ottawa from Colorado?

    Ottawa (YOW) is the airport you will fly into if you book a flight from Colorado to Ottawa. It is only a 6.6 mi journey from Ottawa (YOW) to Ottawa’s city center.

  • What are the most popular routes from Colorado to Ottawa?

    While some choose either Aspen Pitkin County - Ottawa or Colorado Springs - Ottawa, Denver Intl - Ottawa is the most popular route from Colorado to Ottawa.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Colorado to Ottawa (average of $294). Flying from Colorado to Ottawa in September is currently the most expensive (average of $428). 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

Traveling to a place near Ottawa?

Book flights to Ottawa if you plan to visit one of these locations
Gatineau
Petawawa

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Alternative routes for Colorado to Ottawa

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Top 3 airlines flying from Colorado to Ottawa

Discover the top 3 airlines that operate flights from Colorado to Ottawa. 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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest$143Average$309FlexibilityNo cancel feeOn-time60%
Air CanadaCheapest$290Average$481FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$309Average$463FlexibilityNo cancel feeOn-time69%

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