CA $324 Cheap Flights from Denver (DEN) to Ottawa (YOW)

View CA $324 flight on Thu, Oct 15, 2026Opens in a new window

Popular airlines from Denver International Airport (DEN) to Ottawa International Airport (YOW)

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Cheap flights from Denver (DEN) to Ottawa (YOW)

Prices were available within the past 7 days and start at CA $324 for one-way flights and CA $695 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

WestJet
Tue, Jun 2 - Mon, Jun 8
DEN
Denver
YOW
Ottawa
CA $695 Roundtrip, found 2 days ago
CA $695
Roundtrip
found 2 days ago
Select WestJet flight, departing Tue, Jun 2 from Denver to Ottawa, returning Mon, Jun 8, priced at CA $695 found 2 days ago
WestJet
Wed, Jun 24 - Mon, Jul 6
DEN
Denver
YOW
Ottawa
CA $720 Roundtrip, found 2 days ago
CA $720
Roundtrip
found 2 days ago
Select WestJet flight, departing Wed, Jun 24 from Denver to Ottawa, returning Mon, Jul 6, priced at CA $720 found 2 days ago
WestJet
Sun, Sep 27 - Wed, Oct 14
DEN
Denver
YOW
Ottawa
CA $736 Roundtrip, found 2 days ago
CA $736
Roundtrip
found 2 days ago
Select WestJet flight, departing Sun, Sep 27 from Denver to Ottawa, returning Wed, Oct 14, priced at CA $736 found 2 days ago
WestJet
Sat, Aug 22 - Wed, Sep 9
DEN
Denver
YOW
Ottawa
CA $740 Roundtrip, found 2 days ago
CA $740
Roundtrip
found 2 days ago
Select WestJet flight, departing Sat, Aug 22 from Denver to Ottawa, returning Wed, Sep 9, priced at CA $740 found 2 days ago
WestJet
Sun, Jun 28 - Tue, Jul 7
DEN
Denver
YOW
Ottawa
CA $744 Roundtrip, found 2 days ago
CA $744
Roundtrip
found 2 days ago
Select WestJet flight, departing Sun, Jun 28 from Denver to Ottawa, returning Tue, Jul 7, priced at CA $744 found 2 days ago
WestJet
Fri, May 15 - Thu, May 21
DEN
Denver
YOW
Ottawa
CA $778 Roundtrip, found 5 days ago
CA $778
Roundtrip
found 5 days ago
Select WestJet flight, departing Fri, May 15 from Denver to Ottawa, returning Thu, May 21, priced at CA $778 found 5 days ago
WestJet
Fri, May 15 - Thu, May 21
DEN
Denver
YOW
Ottawa
CA $785 Roundtrip, found 5 days ago
CA $785
Roundtrip
found 5 days ago
Select WestJet flight, departing Fri, May 15 from Denver to Ottawa, returning Thu, May 21, priced at CA $785 found 5 days ago
WestJet
Fri, Sep 18 - Fri, Sep 25
DEN
Denver
YOW
Ottawa
CA $800 Roundtrip, found 6 days ago
CA $800
Roundtrip
found 6 days ago
Select WestJet flight, departing Fri, Sep 18 from Denver to Ottawa, returning Fri, Sep 25, priced at CA $800 found 6 days ago
United
Mon, Mar 1 - Wed, Mar 31
DEN
Denver
YOW
Ottawa
CA $1,016 Roundtrip, found 8 hours ago
CA $1,016
Roundtrip
found 8 hours ago
Select United flight, departing Mon, Mar 1 from Denver to Ottawa, returning Wed, Mar 31, priced at CA $1,016 found 8 hours ago
American Airlines
Fri, May 15 - Thu, May 21
DEN
Denver
YOW
Ottawa
CA $1,104 Roundtrip, found 5 days ago
CA $1,104
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, May 15 from Denver to Ottawa, returning Thu, May 21, priced at CA $1,104 found 5 days ago

Alternative airports near Ottawa

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Macdonald-Cartier Intl. YOW. Cheapest option available. Average driving time to city centre is 15 minutes. Flights from CA $1,208
YOW
Macdonald-Cartier Intl.
Cheapest
Average driving time to city centre15 min
Flights from CA $1,208

Frequently asked questions

How much does a flight from Denver, CO (DEN-Denver Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) cost?
One-way flights typically cost between $879 and $2,951 and return flights often range between $1,887 and $5,701. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.
What is the cheapest month to fly from Denver, CO (DEN-Denver Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.)?
April is typically the cheapest month to fly from Denver, CO (DEN-Denver Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.), with average round-trip fares around 982 CAD. This is about 37% lower than the average price throughout the year. April often sees lower prices as it's outside of peak holiday seasons, making it a great time to find deals. Other cheap months to fly from Denver, CO (DEN-Denver Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) include August and October.
How do I find cheap flights from Denver, CO (DEN-Denver Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.)?
To find a cheap flight from Denver, CO (DEN-Denver Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Denver, CO (DEN-Denver Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.)?
The best time to fly from Denver, CO (DEN-Denver Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) is April. This month offers a great balance, as it's both one of the cheapest times to fly, with average round-trip flights around 982, CAD and also a popular time for travel, meaning you'll have plenty of flight options to choose from. This information is based on booking data from the past year.
How many flights per day from Denver, CO (DEN-Denver Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.)?
There are approximately 61 connecting flights per day from Denver Intl. (DEN) to Macdonald-Cartier Intl. (YOW). Some common connection points include Hartsfield-Jackson Atlanta Intl. (ATL), Liberty Intl. (EWR), and O'Hare Intl. (ORD).
What is the earliest flight from Denver, CO (DEN-Denver Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.)?
The earliest flight from Denver, CO (DEN-Denver Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) typically departs at approximately 12:20 AM local time. This flight is operated by Delta and Porter Airlines, and it is a seasonal service active in January. An early departure like this can help you maximize your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Denver, CO (DEN-Denver Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.)?
You'll typically find the most flights from Denver International Airport (DEN) to Macdonald-Cartier International Airport (YOW) on a Thursday, with around 51 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include United Airlines, Delta Air Lines, and Air Canada. Flight schedules are consistent throughout the week, with only a slight variation in the number of flights.
What are the most popular departure times for flights from Denver, CO (DEN-Denver Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.)?
The most popular departure times for flights from Denver Intl. (DEN) to Macdonald-Cartier Intl. (YOW) are in the morning, from 9am to 12pm. About 33 CAD% of passengers prefer this time window. Many major carriers, including United Airlines and Air Canada, offer flights during this window. This timing works well because it allows you to start your travel day without an extremely early wake-up, and you'll arrive at your destination with plenty of time left in the day.
How long does it take to fly from Denver, CO (DEN-Denver Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.)?
Flying from DEN to YOW with a connection usually takes about 7 hours 30 minutes, traveling roughly 1,514 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Denver, CO (DEN-Denver Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.)?
Select the "Business class" and "First class" filters when looking for DEN to YOW flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Denver, CO (DEN-Denver Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) flight with Expedia?
It's easy to earn miles on a Denver, CO (DEN-Denver Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Ottawa from Denver Intl. (DEN)?
From Denver Intl. (DEN), you can fly directly into Macdonald-Cartier Intl. (YOW) to reach Ottawa. Some flights may connect through major hubs like O'Hare Intl. (ORD), Hartsfield-Jackson Atlanta Intl. (ATL), Calgary Intl. (YYC) before reaching Ottawa. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Denver, CO (DEN-Denver Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) at the last minute?
Typically, booking a last minute flight from Denver, CO (DEN-Denver Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Denver, CO (DEN-Denver Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) flight and hotel package?
Securing a Denver, CO (DEN-Denver Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Denver, CO (DEN-Denver Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.)?
If you booked your Denver, CO (DEN-Denver Intl.) to Ottawa, ON (YOW-Macdonald-Cartier Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Denver Intl.
Destination airport
Macdonald-Cartier Intl.
Airlines serving
Air Canada, American Airlines, United, WestJet
Roundtrip price
CA $694
Distance
2422 km

Book with confidence

Denver to Ottawa Flights

The easy way to book your flights from Denver to Ottawa 

With Expedia, it’s simple to find and book flights to Ottawa from Denver whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Macdonald-Cartier Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Denver to Ottawa today, tomorrow, or this week.  

 

Save dollars with cheap flights from Denver Intl., DEN to Macdonald-Cartier Intl., YOW 

Sort your search results by price to find great deals on your flight from Denver to Ottawa—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Ottawa from Denver currently is just CA $695 rising to CA $1,104.  

Here are more money-saving tips: 

  • Fly in June when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Ottawa  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Ottawa from Denver 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Ottawa with Expedia today.

Denver to Ottawa Flights

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