Flight deals from St. Louis to Ottawa

For flight deals from St. Louis to Ottawa, WestJet has what you’re looking for. Our wide and diverse network of flights includes stops into Ottawa Macdonald-Cartier International Airport, which makes us your go-to partner when you need to get where you're going. One of our main focuses is to provide our guests with great experiences, which include safe, affordable travel, and that will never change. These are just some of the many reasons why Canadians book with WestJet and why you should too.

Low fare finder

Don't see what you're looking for? Find all of our great low fares in one place.

A WestJet ticket is the first step of your trip to Bytown

Airport Details: From STL, Lambert - St. Louis International Airport To YOW, Ottawa Macdonald-Cartier International Airport

In addition to its status as a political and technological hub, Ottawa is an outstanding destination. Take the short trip from its bustling airport to its equally lively boulevards and you'll be within touching distance of the kind of treats that make a trip memorable, including some of the country's best restaurants. We're ready to fly you there and put you within touching distance of classical architecture, fascinating heritage and an array of galleries, museums and other venues.

Find flight deals now and you'll soon be on your way to one of Ontario's most multicultural and enjoyable destinations. Whether for work or pleasure, WestJet will take you from St. Louis to Ottawa and before you know it you’ll be enjoying the Canadian Museum of Civilization, Winterlude and the Rideau Canal.

For an enriching air travel experience, book with WestJet today.