C$ 228 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 13/10. 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

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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Best Colorado Flight Deals from Ottawa

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Denver
Denver1 stopC$ 364
Denver
Denver1 stopC$ 364

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

Thu, 19 Feb - Tue, 24 Feb
United Airlines Logo
5:15 a.m. - 10:23 a.m.YOW-DEN
7h 08m1 stop
United Airlines Logo
6:00 a.m. - 4:30 p.m.DEN-YOW
8h 30m1 stop
C$ 364United Airlines
Find Deal
Tue, 3 Mar - Wed, 4 Mar
United Airlines Logo
6:20 a.m. - 3:57 p.m.YOW-DEN
11h 37m1 stop
United Airlines Logo
6:00 a.m. - 4:30 p.m.DEN-YOW
8h 30m1 stop
C$ 376United Airlines
Find Deal
Wed, 29 Oct - Tue, 4 Nov
 Logo
9:30 a.m. - 11:16 p.m.YOW-DEN
15h 46m1 stop
 Logo
12:16 a.m. - 5:13 p.m.DEN-YOW
14h 57m1 stop
C$ 440
Find Deal
Thu, 9 Oct - Mon, 13 Oct
Air Canada Logo
8:35 a.m. - 4:29 p.m.YOW-DEN
9h 54m1 stop
Air Canada Logo
6:05 p.m. - 8:23 a.m.DEN-YOW
12h 18m1 stop
C$ 454Air Canada
Find Deal
Wed, 29 Oct - Tue, 4 Nov
 Logo
6:45 a.m. - 3:59 a.m.YOW-DEN
23h 14m2 stops
 Logo
12:16 a.m. - 5:13 p.m.DEN-YOW
14h 57m1 stop
C$ 493
Find Deal
Tue, 3 Mar - Wed, 4 Mar
Air Canada Logo
2:50 p.m. - 10:56 p.m.YOW-DEN
10h 06m2 stops
Air Canada Logo
7:45 a.m. - 9:14 p.m.DEN-YOW
11h 29m1 stop
C$ 555Air Canada
Find Deal
Thu, 2 Oct - Sun, 5 Oct
WestJet Logo
5:15 p.m. - 11:24 a.m.YOW-DEN
20h 09m2 stops
WestJet Logo
12:15 p.m. - 12:22 a.m.DEN-YOW
34h 07m2 stops
C$ 772WestJet
Find Deal
Thu, 9 Oct - Mon, 13 Oct
WestJet Logo
5:15 p.m. - 11:24 a.m.YOW-DEN
20h 09m2 stops
WestJet Logo
12:15 p.m. - 12:22 a.m.DEN-YOW
34h 07m2 stops
C$ 782WestJet
Find Deal
Thu, 19 Feb - Tue, 24 Feb
Delta Logo
5:40 a.m. - 8:28 p.m.YOW-DEN
16h 48m2 stops
Delta Logo
10:30 a.m. - 12:39 a.m.DEN-YOW
12h 09m2 stops
C$ 887Delta
Find Deal
Thu, 19 Feb - Tue, 24 Feb
Delta Logo
5:40 a.m. - 8:28 p.m.YOW-DEN
16h 48m2 stops
Delta Logo
10:30 a.m. - 12:39 a.m.DEN-YOW
12h 09m2 stops
C$ 891Delta
Find Deal
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?

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 C$ 451 (return) on average. On the other hand, the most expensive months are May and January, when the average cost of round-trip tickets is C$ 811 and C$ 801 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 4 weeks before departure, which saves you about 42% 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 flightC$ 228
Best time to beat the crowds but there is an average 14% increase in price.
Most popular time to fly and prices are also 27% lower 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.

  • What is the cheapest time of day to fly to Colorado?

    The cheapest time of day to fly to Colorado is generally at night, when round-trip flights cost C$ 459 on average. Morning departures are around 4% cheaper than evening flights, on average. The most expensive time of day to fly to Colorado is generally in the afternoon, which is peak travel time and where the average cost of a ticket is C$ 668.

Reviews of the top 3 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 8929 reviews
7.1Entertainment
7.3Comfort
7.7Boarding
8.1Crew
6.6Food
Airline reviews

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

8.0 ExcellentAnonymous, Aug 2025YOW - ORD
Read more United Airlines reviews

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

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

It was all good flight was on time, service was good I enjoyed a few movies and everything was smooth

Very rough getting into denver. my kid threw up it was so rough.

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

Efficient, calm when things were delayed and kept us regularly informed of what was happening.

I like how spacious the plane was but I did not like the fact that there was no entertainment

No dogs! Can we have no dogs in the cabin? Why was there a yappy little dog behind me? Lucky I had ear plugs. Sorry for others without

Technology issues at the bag-check counter caused a delay, and we were unable to check out our bags, ultimately missing our flight. They offered no assistance other than telling us to book another flight out of Calgary. We arrived with plenty of time; if there hadn't been an issue with the kiosk and the length of the lines due to the technical issues, we could have made it home.

In spite of purchasing premium, I felt it was perhaps the most uncomfortable seat I have flown in. The base was either broken or poorly made and had no support. Even placing pillows and blankets on the seat (1D aisle) didn’t help. It made for a long and mostly sleepless six hour flight. Crew also were very loudly talking to each other through the night making it very hard to sleep. It was purchased for the price, so I get the risk, but was not impressed.

Good value, minor delay due to waiting for inbound plane but they gave accurate information about wait time. Able to switch to a seat by my husband thanks to a kind flight attendant

Absolutely terrible, from the customer service to boarding the plane. On the phone, there was some mishaps with getting in my correct date and they did not help me retrieve a refund or any assistance. I’m gonna be reporting to all my followers and family around the region of Los Angeles to New York.

Arrival at Comox from, London,ON 6 hours later... No bueano

Generally good. However. The flight left 30 mins behind schedule with no reason given.

Flight delayed, missed my pick-up had to Uber, plus missed dinner and medication, so sad!

Nothing to like because my inbound flight was cancelled without notification by West Jet or third party, JustFly. I couldn’t take the inbound flight due to cancellation; therefore could not take the outbound flight back.

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

They lost my checked in luggage, why do I pay for my cargo not arriving at the same destination as me?

Overall good experience. The flight from Toronto to Denver does not have entertainment - movies to watch.

Poor planning meant the plane was delayed an hour, then a thunder storm started and the ground staff couldn't work. Eventual arrival in Santiago was 3 hours late resulting in missed connections and the need to buy new tickets.

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

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