$158 Find Cheap Flights from Ottawa to Colorado

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ottawa to Colorado departing on 5/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Colorado

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ottawa to Colorado, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ottawa to Colorado, as well as popular online travel agencies
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Cheap Flights from Ottawa to Colorado

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Denver
Denver2 stops$239
Colorado Springs
Colorado Springs2 stops$294
Denver
Denver2 stops$239
Colorado Springs
Colorado Springs2 stops$294

Book Cheap Ottawa to Colorado Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ottawa to Colorado that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ottawa to Colorado

Wed, May 20 - Mon, May 25
WestJet Logo
5:15 pm - 11:25 am
YOW
-
DEN
20h 10m2 stops
WestJet Logo
12:15 pm - 12:40 am
DEN
-
YOW
10h 25m1 stop
$239WestJet
Wed, May 20 - Mon, May 25
WestJet Logo
3:45 pm - 11:25 am
YOW
-
DEN
21h 40m1 stop
WestJet Logo
12:15 pm - 12:40 am
DEN
-
YOW
10h 25m1 stop
$244WestJet
Tue, Jan 27 - Mon, Feb 2
Multiple Airlines Logo
7:00 am - 12:03 pm
YOW
-
DEN
31h 03m2 stops
Multiple Airlines Logo
7:00 am - 5:15 pm
DEN
-
YOW
8h 15m1 stop
$256Multiple Airlines
Wed, May 20 - Mon, May 25
WestJet Logo
5:15 pm - 11:25 am
YOW
-
DEN
20h 10m2 stops
WestJet Logo
12:15 pm - 5:28 am
DEN
-
YOW
15h 13m2 stops
$270WestJet
Thu, Jan 29 - Mon, Feb 2
Multiple Airlines Logo
3:55 pm - 6:37 pm
YOW
-
DEN
28h 42m2 stops
Multiple Airlines Logo
7:00 am - 5:15 pm
DEN
-
YOW
8h 15m1 stop
$283Multiple Airlines
Tue, Jan 27 - Sat, Jan 31
Multiple Airlines Logo
7:00 am - 12:03 pm
YOW
-
DEN
31h 03m2 stops
Multiple Airlines Logo
7:00 am - 5:15 pm
DEN
-
YOW
8h 15m1 stop
$284Multiple Airlines
Wed, Feb 4 - Wed, Feb 11
United Airlines Logo
7:27 pm - 10:57 am
YOW
-
COS
17h 30m2 stops
United Airlines Logo
11:43 am - 9:18 pm
COS
-
YOW
7h 35m1 stop
$294United Airlines
Fri, Feb 20 - Fri, Feb 27
United Airlines Logo
6:20 am - 10:55 am
YOW
-
COS
6h 35m1 stop
United Airlines Logo
8:00 am - 9:56 pm
COS
-
YOW
11h 56m2 stops
$464United Airlines
Wed, Feb 4 - Wed, Feb 11
American Airlines Logo
10:00 am - 12:09 pm
YOW
-
COS
28h 09m3 stops
American Airlines Logo
1:06 pm - 4:58 pm
COS
-
YOW
25h 52m2 stops
$544American Airlines
Fri, Feb 20 - Fri, Feb 27
American Airlines Logo
6:40 am - 11:59 pm
YOW
-
COS
19h 19m3 stops
American Airlines Logo
12:30 pm - 12:43 am
COS
-
YOW
10h 13m2 stops
$607American Airlines
Booking Insights

KAYAK's insights & trends for Ottawa to Colorado flights

Get data-powered insights and trends into flights from Ottawa to Colorado to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Ottawa to Colorado?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ottawa to Colorado, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ottawa to Colorado is September, when tickets cost $325 (return) on average. On the other hand, the most expensive months are January and December, when the average cost of round-trip tickets is $906 and $597 respectively.

How far in advance should I book a flight from Ottawa to Colorado?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ottawa to Colorado, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Ottawa to Colorado, you should book around 5 weeks before departure, which saves you about 49% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonApril
Cheapest flight$158
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly with an average 17% increase in price.
Flight from Ottawa to Denver

FAQs - booking Colorado flights

  • How does KAYAK find such low prices on flights from Ottawa to Colorado?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ottawa to Colorado.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ottawa to Colorado?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ottawa to Colorado is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ottawa to Colorado?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Ottawa to Colorado with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ottawa to Colorado?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Ottawa to Colorado up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Ottawa to Colorado

 
See real verified KAYAK customer reviews for airlines flying from Ottawa to Colorado. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ottawa to Colorado? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9139 reviews
7.1Entertainment
8.1Crew
7.7Boarding
7.3Comfort
6.6Food
Airline reviews

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

6.0 GoodAnonymous, Jan 2026
MKE - DEN
Read more United Airlines reviews

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Not good - outbound flight was delayed and missed my connection even though I got to the gate after running through the airport - the agent would not let me on because the door was closed (flight had not left). There was no notification from United - overall experience was very disappointing. Additionally, I was downgraded from first class to coach on the alternative flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

Quick and seamless boarding. No entertainment but fast Starlink wifi for this short trip and the staff was really friendly.

I dread trans-Pacific flights. They are very long. This was my first time on Universal, and it was my best crossing ever. The staff were professional, the hospitality was great, and the food was delicious. The entertainment system filled the long flight hours. I will seek out Universal flights from now onwards. 🙂

We Left Calgary 1/2 hour late and that made for a tight connection in Denver. After arriving everything was done to help us make our connection. That was a great effort. Thank You United

Efficient all round, very good crew. Short flight so the food, of course, was just snacks

My flight was delayed about 1 1/2 hours in Chicago, but other then that it was a good flight.

We were happy with the service and cost of checking a bag

Wifi was great. Kind air crew and comfortable seating. Also liked the entertainment options.

Flying with Air Canada is still better than the discount airlines like Flair. The seats are more comfortable and the on-board entertainment is better, with each seat having a built in screen and lots of content to watch. Onboard WIFI is also great to have, as well as plugs for charging. I think passengers in general are getting better at not bringing too much luggage onboard, and Air Canada is better at managing this without customers feeling like they are being taken advantage of with extra fees. I have travelled on different airlines and all seem to be loading faster, with fewer people bringing both a carry on and a personal item. Now I just bring one item and it fits under the seat so I don't need to worry about finding a place in the overhead bins. Overall, across the industry, asking customers to pay for carry on baggage is fair because it allows customers to only pay for what they need, and it helps to keep the planes on time. Kudos to Air Canada for its approach - the desired result is achieved without customers feeling that they are being surprised and caught with unexpected extra fees.

Due to the strike by AC flight attendants, my flight was cancelled. Very disappointing! A refund is being processed. This was not a Kayak issue. I will be sure to come back to Kayak in the future.

I did not noticed baggage was separate - I had assumed international flights included luggage, so it surprised me I had to pay to check a bag.

Staff was very courteous and kept things organized. We will definitely use Air Canada for further travel

In a nutshell, my bag, the one I have to pay for, because now you can’t even bring a carry on, did not make it. I am still waiting for an update. The fact that not only were have to pay for it, but on top of that we are stuck without getting it, it’s ridiculous..

Great flights. 90 minute departure delay for maintenance issues, not a great start but, afer that very good. Didn't pay extra for seats and lucked into a window and an aisle seat. Price was excellent at the super low economy level.

Just a little improvement on food but everything is excellent

flight landed late almost 1.00hr and we 4 passengers missed our connected flight to indianapolis, we need to get the hotel and taxi for the next day flight to home in indianapolis, cost us $ 300 more

Everything you need to know for your flight from Ottawa to Colorado

Information on your arrival and departure airports