Cheap Flight Deals From Denver (DEN) to Ottawa (YOW) Starting at $231

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This Weekend's Flight Deals from Denver to Ottawa

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Airfares from $231 One Way, $595 Round Trip from Denver to Ottawa

Prices starting at $595 for return flights and $231 for one-way flights to Ottawa were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

More About Flying To Ottawa from Denver

Route Information for Flights from Denver to Ottawa

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Earliest Flight Arrival
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Fly from Denver to Ontario

Residents of Denver, Colorado, who would like to visit Canada can board a plane and head to Ontario. As one of the most populous regions of Canada, Ontario is home to the nation's capital, Ottawa, as well as the cosmopolitan city of Toronto. You can get to Denver International Airport (DEN) by taxi or private car. In about six hours, you can fly from Denver to Ontario.


Niagara Falls is one of Ontario's most popular attractions and includes the multistory falls as well as tours of the Niagara River. Exciting professional sports events such as games played by the Toronto Maple Leafs, Blue Jays and United FC take place throughout the year. Scenic trails and water tours around Lake Huron, Erie and Superior are enjoyable during the summertime, while ice fishing on Lake St. Clair is a favorite wintertime activity.

Hints and tips

Ottawa Macdonald-Cartier International Airport (YOW) is 10 miles outside of central Ottawa. Ontario has warm summers with an average high of about 80 degrees in July, and the temperature drops to the 20s in December and January. The annual Canada Day festivities, held each year on July 1, are some of the most beloved events in Ontario. This celebration of national independence includes singing of the national anthem, fireworks, parades, citywide picnics and other community-oriented activities.

Frequently asked questions

Am I able to catch a flight from Denver to Ottawa now?
If you’re worried about quarantine requirements and travel restrictions when getting a flight from Denver to Ottawa, check out the Covid-19 Travel Advisor.
What is the shortest flight from Denver to Ottawa?
The shortest flight from Denver Intl. Airport (DEN) to Macdonald-Cartier Intl. Airport (YOW) is 4 hours and 1 minute. Bring something on board to keep you amused, like a gripping book or some playing cards.
If I am not able to travel due to COVID-19, can I cancel my flight to Ottawa?
We get that traveling right now has its challenges, so it’s good to know that many reservations booked through us are able to be cancelled or changed. If your travel plans to Ottawa have been affected by COVID-19, a lot of airlines are making things easier by offering credits to use at a later date. Just sign in to your account and you’ll quickly see what options are available. Our Customer Service Portal is the place to go for more information.
Are there flights to Ottawa with flexible change policies?
In most cases you’ll have the option to reschedule your flight to Ottawa without a change fee. All you have to do then is pay the difference between the old flight and the new one. Look for the “no change fees” filter and book with confidence.
What is the cheapest day of the week to fly?
Consider flying out early in the week to save on your airfare. Orbitz data from 2021 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.
What is the cheapest month to fly?
We won’t keep you guessing, according to Orbitz data from 2021, the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a break from it all in the shortest month of the year. Be aware that the most expensive time to fly is during the height of summer in July, and in the holiday month of December.*According to flight demand on from January to December 2021. Savings are subject to change based on departure location, date and destination.

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.