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Cheap flights from Ottawa to Colorado from C$ 261

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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — DEN
28 nov. — 5 dic.1
1 adult
1 adult, Economy, 0 bags

Find 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 octubre 2025.

lun. 15/123:55 p.m.YOW - DEN
1 stop11h 28mMultiple Airlines
mié. 24/1210:37 p.m.DEN - YOW
2 stops47h 21mMultiple Airlines
Deal found 28/10C$ 471
jue. 11/124:15 p.m.YOW - DEN
2 stops42h 05mMultiple Airlines
jue. 18/126:00 a.m.DEN - YOW
1 stop9h 10mMultiple Airlines
Deal found 27/10C$ 572
sáb. 13/1210:00 a.m.YOW - DEN
2 stops17h 23mMultiple Airlines
sáb. 20/1211:59 p.m.DEN - YOW
1 stop21h 59mMultiple Airlines
Deal found 29/10C$ 633
vie. 19/124:20 p.m.YOW - DEN
1 stop27h 14mMultiple Airlines
lun. 29/124:38 p.m.DEN - YOW
2 stops22h 35mMultiple Airlines
Deal found 26/10C$ 636
mar. 23/126:15 a.m.YOW - DEN
1 stop12h 14mUnited Airlines
sáb. 27/126:00 a.m.DEN - YOW
1 stop10h 52mUnited Airlines
Deal found 26/10C$ 753
mar. 30/129:45 a.m.YOW - DEN
1 stop16h 30mUnited Airlines
jue. 1/16:00 a.m.DEN - YOW
1 stop15h 54mUnited Airlines
Deal found 29/10C$ 755
lun. 29/129:45 a.m.YOW - COS
2 stops13h 26mUnited Airlines
jue. 1/17:40 a.m.COS - YOW
2 stops9h 12mUnited Airlines
Deal found 29/10C$ 1,115
lun. 29/126:15 a.m.YOW - COS
1 stop7h 09mMultiple Airlines
jue. 1/16:00 a.m.COS - YOW
1 stop9h 18mMultiple Airlines
Deal found 28/10C$ 2,412

Cheap 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 octubre 2025.

Round-trip from

C$ 471

One-way from

C$ 317

Popular in

January

Cheapest in

September

Average price

C$ 464
15/12-24/12
  • 15/12-24/12
  • 3 total stops
  • 58h 49m total
  • Ottawa to Colorado
Search Deals
21/11
  • 21/11
  • 3 total stops
  • 19h 28m total
  • Ottawa to Colorado
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (C$ 153 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 octubre 2025.
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

lun. 15/12

9:25 a.m.-1:23 a.m.

1 stop17h 58m

Denver Intl

mié. 24/12

4:25 p.m.-5:25 p.m.

1 stop23h 00m

C$ 553

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

mar. 21/4

2:50 p.m.-9:58 p.m.

2 stops9h 08m

Colorado Springs

jue. 23/4

7:00 a.m.-10:16 p.m.

2 stops13h 16m

C$ 556

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

jue. 11/12

4:15 p.m.-8:20 a.m.

2 stops42h 05m

Denver Intl

jue. 18/12

6:00 a.m.-5:10 p.m.

1 stop9h 10m

C$ 572

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

jue. 15/1

4:20 p.m.-11:12 p.m.

1 stop32h 52m

Denver Intl

jue. 22/1

2:43 p.m.-5:13 p.m.

2 stops24h 30m

C$ 588

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

mar. 21/4

1:30 p.m.-9:58 p.m.

2 stops10h 28m

Colorado Springs

jue. 23/4

1:00 p.m.-9:14 p.m.

1 stop6h 14m

C$ 625

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

sáb. 13/12

10:00 a.m.-1:23 a.m.

2 stops17h 23m

Denver Intl

sáb. 20/12

11:59 p.m.-11:58 p.m.

1 stop21h 59m

C$ 633

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

vie. 19/12

4:20 p.m.-5:34 p.m.

1 stop27h 14m

Denver Intl

lun. 29/12

4:38 p.m.-5:13 p.m.

2 stops22h 35m

C$ 636

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

mié. 11/2

9:30 a.m.-11:00 a.m.

2 stops27h 30m

Denver Intl

lun. 23/2

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

1 stop15h 14m

C$ 694

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

mar. 30/12

2:15 p.m.-12:15 a.m.

1 stop12h 00m

Denver Intl

jue. 1/1

7:45 a.m.-9:18 p.m.

1 stop11h 33m

C$ 753

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

mar. 23/12

6:15 a.m.-4:29 p.m.

1 stop12h 14m

Denver Intl

sáb. 27/12

6:00 a.m.-6:52 p.m.

1 stop10h 52m

C$ 753

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/10

Showing 1-10 of 18 results
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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$ 271). Flying from Ottawa to Colorado in February is currently the most expensive (average of C$ 436). 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 YOW to CO?

Find hourly flight availability from Ottawa to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 octubre 2025.

It’s typically best to fly out from Ottawa to Colorado in the evening. Doing so could potentially save you 44% on the flight price compared to flying in the afternoon, which is usually more expensive.

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 octubre 2025.
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
8,999 reviews
Check prices

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
United Airlines
7.4
Good
8,999 reviews
United Airlines
7.4
Good
8,999 reviews
Check prices

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
WestJet
7.2
Good
3,148 reviews
United Airlines
7.4
Good
8,999 reviews
Check prices

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.
Air Canada
7.1
Good
10,372 reviews
United Airlines
7.4
Good
8,999 reviews
Check prices

Food

6.6

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2025

YUL - ORD

Crew and customer service are 5 stars. I had a lot of luggage for a very long trip and they were nothing but helpful and found solutions to every problem. It was my first time flying with United, and they really are the friendly skies. Leg room however, on 2/3 flights was terrible. Same for entertainment: There was only a seat-mounted screen on 1/3 flights. It would have been nice to have on the longest leg of the journey.

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 9h 08m. Air Canada provides one of the quickest options available for as low as C$ 556. 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, April is the cheapest month in which you can book a flight from Ottawa to Colorado (average of C$ 271). Flying from Ottawa to Colorado in February is currently the most expensive (average of C$ 436). 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 29 octubre 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 308AverageC$ 710FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 333AverageC$ 482FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 402AverageC$ 668FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Ottawa to Colorado?

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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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