Cheap flights from Denver, CO to Ottawa, Canada

Travelers frequently search for route combinations, such as Denver and London, Calgary, Dublin, Manchester, New York, San Francisco, Glasgow, Chicago, Las Vegas, Toronto, Washington, D.C., Los Angeles, Buffalo, Riga, Austin, San Jose, Phoenix, Detroit, Houston, Vancouver.

Travelers frequently search for route combinations, such as Ottawa and Halifax, Toronto, Moncton, Paris, London, Amsterdam, Athens, Calgary, Glasgow, Madrid, Frankfurt, Sydney, Milan, Manchester, Rome, Palma, Majorca, Oslo, Atlanta, Dublin, Brussels.

Denver is mainly served by Denver International. But there are other airports nearby, including Rocky Mountain Metropolitan Airport, Centennial Airport.

The main airport in Denver is Denver International. It is also served by Colorado Springs, Pueblo Memorial, Cheyenne Regional, Eagle County Regional, Laramie Regional.

The main airport in Ottawa is Ottawa Macdonald–Cartier International. It is also served by Montréal–Pierre Elliott Trudeau International, Syracuse Hancock International, Plattsburgh International, Massena International, Ogdensburg International, Montreal Saint-Hubert Longueuil, Adirondack Regional, Watertown International.

Yes, it's possible to combine different modes of transport between Denver and Ottawa thanks to our Virtual Interlining technology. Making use of not only flights but also trains and buses between Denver and Ottawa can give rise to new adventures. Read more about how Virtual Interlining works on Kiwi.com Stories.

Virtual Interlining provides a revolutionary way of traveling. You can combine different modes of transport like flights, trains, and buses into one itinerary. And this often saves money. Thanks to the world's largest carrier database, the Kiwi.com search function enables anyone to mix and match different modes of transport easily.

Currently, you can fly between Denver and Ottawa with Porter Airlines, Frontier Airlines, WestJet, Air Canada, United Airlines.

If you don’t have specific dates for your trip between Denver and Ottawa, you can enter a date range into the departure and return fields. Most carriers on the Kiwi.com website allow you to search and book up to six months from the day of your search. Order the search results by the best, cheapest, or fastest route, or find the cheapest outbound and return combination in the pricing table.