C$ 315 Find Cheap Flights from Ottawa to Colorado – Compare and Save

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 8/7. 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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Flight Deals

Best Colorado Flight Deals from Ottawa

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Denver
Denver2 stopsC$ 544
Colorado Springs
Colorado Springs2 stopsC$ 647
Denver
Denver2 stopsC$ 544
Colorado Springs
Colorado Springs2 stopsC$ 647

Cheap Flights from Ottawa to Colorado

 
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

Fri, 28 Aug - Sun, 30 Aug
WestJet Logo
6:15 p.m. - 11:20 a.m.
YOW
-
DEN
19h 05m
2 stops
WestJet Logo
12:15 p.m. - 7:20 p.m.
DEN
-
YOW
29h 05m
1 stop
C$ 544WestJet
Fri, 28 Aug - Sun, 30 Aug
WestJet Logo
6:15 p.m. - 11:20 a.m.
YOW
-
DEN
19h 05m
2 stops
WestJet Logo
12:15 p.m. - 5:35 p.m.
DEN
-
YOW
27h 20m
2 stops
C$ 545WestJet
Wed, 19 Aug - Sat, 29 Aug
WestJet Logo
6:15 p.m. - 11:20 a.m.
YOW
-
DEN
19h 05m
2 stops
WestJet Logo
12:15 p.m. - 3:20 p.m.
DEN
-
YOW
25h 05m
1 stop
C$ 552WestJet
Wed, 19 Aug - Sat, 29 Aug
WestJet Logo
7:20 a.m. - 11:20 a.m.
YOW
-
DEN
30h 00m
1 stop
WestJet Logo
12:15 p.m. - 12:40 a.m.
DEN
-
YOW
10h 25m
1 stop
C$ 559WestJet
Thu, 27 Aug - Sun, 30 Aug
WestJet Logo
7:20 a.m. - 11:20 a.m.
YOW
-
DEN
30h 00m
1 stop
WestJet Logo
12:15 p.m. - 12:20 a.m.
DEN
-
YOW
34h 05m
2 stops
C$ 560WestJet
Sat, 29 Aug - Tue, 1 Sep
United Airlines Logo
6:25 a.m. - 2:32 p.m.
YOW
-
COS
10h 07m
2 stops
United Airlines Logo
7:40 a.m. - 9:35 p.m.
COS
-
YOW
11h 55m
2 stops
C$ 647United Airlines
Sat, 29 Aug - Tue, 1 Sep
United Airlines Logo
6:25 a.m. - 10:33 a.m.
YOW
-
COS
6h 08m
1 stop
United Airlines Logo
7:55 a.m. - 5:16 p.m.
COS
-
YOW
7h 21m
1 stop
C$ 648United Airlines
Sat, 29 Aug - Tue, 1 Sep
United Airlines Logo
5:20 p.m. - 9:54 p.m.
YOW
-
COS
6h 34m
1 stop
United Airlines Logo
7:55 a.m. - 5:16 p.m.
COS
-
YOW
7h 21m
1 stop
C$ 700United Airlines
Sat, 29 Aug - Tue, 1 Sep
United Airlines Logo
6:25 a.m. - 10:33 a.m.
YOW
-
COS
6h 08m
1 stop
United Airlines Logo
11:55 a.m. - 9:35 p.m.
COS
-
YOW
7h 40m
1 stop
C$ 701United Airlines
Thu, 20 Aug - Sun, 23 Aug
Multiple Airlines Logo
3:10 p.m. - 11:55 p.m.
YOW
-
COS
10h 45m
2 stops
Multiple Airlines Logo
10:27 a.m. - 1:35 a.m.
COS
-
YOW
13h 08m
2 stops
C$ 826Multiple 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.

How much is a round-trip flight from Ottawa to Colorado?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ottawa to Colorado departing in August.

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 November, when tickets cost C$ 263 (return) on average. On the other hand, the most expensive months are January and April, when the average cost of round-trip tickets is C$ 838 and C$ 780 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 a flight from Ottawa to Colorado, you should book around 5 weeks before departure, which saves you about 67% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flightC$ 315
Best time to beat the crowds (41% less expensive on average)
Most popular time to fly (13% more expensive on average)
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 travellers 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 9804 reviews
8.1Crew
7.1Entertainment
7.7Boarding
6.6Food
7.3Comfort
Airline reviews

Boarding was smooth and efficient. The only food was some pretzels, but it was a short flight. Not much to order if you were hungry.

8.0 ExcellentJane, Jun 2026
YYZ - DEN
Read more United Airlines reviews

Boarding was smooth and efficient. The only food was some pretzels, but it was a short flight. Not much to order if you were hungry.

Crew were welcoming, accommodating and they worked hard to find places for all carry on.

Seats very comfortable; service efficient and pleasant; flight was on-time; boarding organized.

Starlink is great Crew was polite Business class didn’t get a welcome drink just water and snacks were ok

very average service no complimentary alcoholics drinks unlike other airlines such as Porter airlines No decent seats available during check-in time the day before

They were fast and I like how they used to entertainment system to play video about the safety.

Hopped on time for the flight only to get deplaned and delayed another 2.5 hours.

Flight attendants had a little attitude. Food tastes no good.

Very poor. The flight was delayed from Toronto because some forget to do there job . I got to my connecting gate in San Francisco 10 minutes before the departure.but this didn’t let me board even though the flight was still there for an other 30 minutes. The the gentleman at the unite airline desk told me that they usually wait for passengers but air Canada called and told them not to we I been rerouted to Manila instead of Hong Kong . In San Francisco they mad me check in my carryon bag . I was told the it will directly go yo ho chi minn cuyt but I was told that by the Vietnams airline desk that’s not there I’m 10 hours behind my scheduled flight and looks like I I’m going without baggage. I don’t have a chance of catching ..

It was great. There were some issues prior to takeoff. The weather was poor so we had to go through deicing, and we were delayed a bit by the pilots' concern about one of the engines, but that's aviation. The pilots handled everything with aplomb, and kept us apprised

It was out first time flying Air Canada and it was ok, comfort-wise. I hope airlines are able to get a quiet room installed for young children flying. Screaming and crying the whole time in business class is quite unfortunate. That was the only thing that really messed up the experience.

Staff were very friendly. Plane left on time and arrived on time.

Air traffic delay meant boarding started, then plane was evacuated and passengers sent back to the terminal for 1 hour. Very little information shared.

Another good flight experience with Air Canada. The business section did not feature the full length sleeping arrangement, but this was a shorter trip. The food was excellent. But the flight crew was truly top tier: friendly, cheerful, helpful at all the right times. Air Canada truly outshines all U.S. carriers.

The crew was amazing! I was a bit surprised and disappointed that there was not wifi available for personal use. The only thing I would change would be the seat cushions. They are not comfortable at all for long flights.

It was a very small plane and was ok. No food or entertainment so there should be an option for NA.

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.

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

Information on your arrival and departure airports