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Cheap flights from Ottawa to Colorado from C$ 255

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 26/1. Fares are subject to change and may not be available on all flights or dates of travel.
YOW — DEN
11 Jan — 18 Jan1
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 12 December 2025.

Thu 11/124:15 p.m.YOW - DEN
2 stops42h 05mMultiple Airlines
Wed 7/14:25 p.m.DEN - YOW
1 stop23h 00mMultiple Airlines
Deal found 11/12C$ 797
Sat 13/129:35 a.m.YOW - DEN
1 stop25h 35mMultiple Airlines
Mon 15/1211:59 p.m.DEN - YOW
2 stops15h 26mMultiple Airlines
Deal found 10/12C$ 969
Tue 30/129:45 a.m.YOW - DEN
1 stop10h 28mUnited Airlines
Thu 1/16:00 a.m.DEN - YOW
1 stop6h 27mUnited Airlines
Deal found 10/12C$ 1,077
Tue 30/126:15 a.m.YOW - DEN
1 stop15h 31mAir Canada
Thu 1/16:00 a.m.DEN - YOW
2 stops8h 48mAir Canada
Deal found 11/12C$ 1,083
Sun 14/124:20 p.m.YOW - DEN
2 stops23h 26mMultiple Airlines
Mon 15/1211:59 p.m.DEN - YOW
1 stop15h 14mMultiple Airlines
Deal found 10/12C$ 1,105
Fri 19/126:00 a.m.YOW - DEN
2 stops14h 58mWestJet
Mon 29/127:10 a.m.DEN - YOW
2 stops15h 30mWestJet
Deal found 11/12C$ 1,160
Mon 29/126:15 a.m.YOW - COS
2 stops17h 39mUnited Airlines
Thu 1/16:00 a.m.COS - YOW
1 stop13h 18mUnited Airlines
Deal found 10/12C$ 1,165
Fri 19/122:50 p.m.YOW - DEN
1 stop7h 05mAir Canada
Mon 29/126:00 a.m.DEN - YOW
1 stop9h 18mAir Canada
Deal found 10/12C$ 1,178
Fri 19/127:27 p.m.YOW - DEN
1 stop6h 48mUnited Airlines
Mon 29/127:50 a.m.DEN - YOW
1 stop6h 37mUnited Airlines
Deal found 11/12C$ 1,182
Thu 11/125:14 p.m.YOW - DEN
2 stops18h 51mUnited Airlines
Wed 7/15:42 p.m.DEN - YOW
2 stops21h 30mUnited Airlines
Deal found 11/12C$ 1,187
Mon 29/125:09 p.m.YOW - COS
1 stop20h 15mMultiple Airlines
Thu 1/17:00 a.m.COS - YOW
2 stops9h 38mMultiple Airlines
Deal found 11/12C$ 1,851

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 12 December 2025.

Round-trip from

C$ 418

One-way from

C$ 255

Popular in

January

Cheapest in

September

Average price

C$ 823
United Airlines
  • United Airlines
  • 14/4-21/4
  • 4 total stops
  • 21h 54m total
  • Ottawa to Colorado
Search Deals
26/1
  • 26/1
  • 1 total stop
  • 26h 05m total
  • Ottawa to Colorado
Search Deals
Highest demand for flights based on searches. 20% potential increase in price (C$ 239 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 12 December 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

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Tue 14/4

6:52 a.m.-2:20 p.m.

2 stops9h 28m

Colorado Springs

Tue 21/4

7:30 a.m.-9:56 p.m.

2 stops12h 26m

C$ 418

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Tue 7/4

10:35 a.m.-8:46 p.m.

2 stops12h 11m

Colorado Springs

Tue 14/4

10:30 a.m.-9:56 p.m.

2 stops9h 26m

C$ 418

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Wed 15/4

10:35 a.m.-8:46 p.m.

2 stops12h 11m

Colorado Springs

Mon 20/4

1:32 p.m.-9:11 a.m.

2 stops17h 39m

C$ 419

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Wed 7/1

9:15 a.m.-1:23 a.m.

2 stops18h 08m

Denver Intl

Wed 14/1

4:27 p.m.-5:25 p.m.

1 stop22h 58m

C$ 422

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Wed 8/4

10:35 a.m.-8:46 p.m.

2 stops12h 11m

Colorado Springs

Sat 11/4

7:00 a.m.-7:34 p.m.

2 stops10h 34m

C$ 501

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Wed 1/4

5:00 a.m.-2:20 p.m.

2 stops11h 20m

Colorado Springs

Tue 7/4

10:30 a.m.-9:56 p.m.

2 stops9h 26m

C$ 501

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Wed 15/4

6:00 a.m.-2:20 p.m.

2 stops10h 20m

Colorado Springs

Tue 21/4

1:32 p.m.-11:54 p.m.

2 stops8h 22m

C$ 502

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Sat 11/4

10:35 a.m.-8:46 p.m.

2 stops12h 11m

Colorado Springs

Mon 20/4

6:00 a.m.-1:45 p.m.

1 stop5h 45m

C$ 601

OttawaColorado Springs

YOW - COS

YOWCOS

Ottawa

Mon 6/4

10:35 a.m.-8:46 p.m.

2 stops12h 11m

Colorado Springs

Tue 14/4

5:12 p.m.-9:11 a.m.

2 stops13h 59m

C$ 601

OttawaDenver

YOW - DEN

YOWDEN

Ottawa

Mon 26/1

5:11 p.m.-6:58 a.m.

2 stops15h 47m

Denver Intl

Thu 29/1

11:59 p.m.-11:54 p.m.

1 stop21h 55m

C$ 821

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 22 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$ 255). Flying from Ottawa to Colorado in January is currently the most expensive (average of C$ 527). 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 12 December 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 12 December 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
9,095 reviews
Check prices

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

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
9,095 reviews
United Airlines
7.4
Good
9,095 reviews
Check prices

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

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
3,195 reviews
United Airlines
7.4
Good
9,095 reviews
Check prices

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

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
10,516 reviews
United Airlines
7.4
Good
9,095 reviews
Check prices

Entertainment

7.1

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

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 28m. United Airlines provides one of the quickest options available for as low as C$ 418. 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$ 255). Flying from Ottawa to Colorado in January is currently the most expensive (average of C$ 527). 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

Browse thousands of different options on Cheapflights for your next trip

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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 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 304AverageC$ 704FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
WestJetCheapestC$ 329AverageC$ 473FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Air CanadaCheapestC$ 429AverageC$ 667FlexibilityNo 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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