The cheapest times to fly from YOW to DEN are

  • January 1st to February 25th (except the week of February 12th)
  • August 6th to December 16th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from YOW to DEN is early December. Prices can be as high as $817 for Sunday flights during mid June, or as low as $224 for Tuesday flights around early December.


When to Fly to Denver

Flying from Ottawa (YOW) to Denver, CO (DEN) will usually cost between $261 to $688 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early December with an average ticket price of $275. Due to high demand the most expensive time to fly is mid June, with an average price of $696. Planning your trip to low-cost times can easily save you $422 on economy flights and even more on first-class flights. Generally, any price below $387 can be considered a good price for a round-trip YOW to DEN flight.

See below for a graph of average weekly prices for the YOW to DEN route. All prices are for round-trip tickets in USD.

YOW to DEN Flight Prices

Compared to other flights, the YOW to DEN flight is much cheaper than the average and costs less than the average flight leaving from Ottawa. The average price per mile (for a direct flight) is $0.16, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $151 (29%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $355. Return trip prices are from the DEN to YOW flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from YOW to DEN can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 3 hour 42 minutes may not be realistic.


Flight Questions Answered

Still have questions about flying from YOW to DEN? We’ve got answers.

Which airlines fly this route?

You can find 6 major airlines flying this route most often: Air Canada, American, Delta, Qantas, United, WestJet, and potentially more during busy seasons.

How far away is it from Denver International Airport to Ottawa Macdonald Cartier International Airport?

The distance between the two airports is roughly 1514 miles or 2437 kilometers.

How long does it take to fly from YOW to DEN?

The real-world flight time for a nonstop YOW to DEN flight is about 3 hour 42 minutes.

How many flights go between Ottawa and Denver, CO?

It depends on the day of the week and the date, but a typical day might have around 78 available flights from YOW to DEN.


Airport Location Info


Departing Airport

Origination codeYOW
Origination airport nameOttawa Macdonald Cartier International Airport

Return Airport

Destination codeDEN
Destination airport nameDenver International Airport
CityDenver, CO
Countrythe United States


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.