Flights from Montreal to St. Louis

For flights from Montreal to St. Louis, WestJet has what you’re looking for. We fly to destinations in North America, Central America, the Caribbean and Europe — including flights into Lambert - St. Louis International Airport — and we're here to get you where you want to be. One of our main priorities has always been to offer our guests superior experiences; with us that means safe, affordable travel. Explore our selection of flights now.

Low fare finder

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

Start your visit to The Gateway to the West with WestJet

Airport Details: From YUL, Montréal To STL, Lambert - St. Louis International Airport

Home to a number of eclectic neighbourhoods, including the entertaining Grand Center district and the Italian restaurant-filled The Hill, there is no mistaking that St. Louis is a vibrant and exciting destination. Here, guests can explore a variety of historical draws amidst natural surroundings; in fact, sprawling and scenic Forest Park is home to a number of monuments and memorials, not to mention a history museum and art museum. Visitors can also explore the great outdoors here, as the city provides ample opportunities to stroll or hike the day away.

Book your flight and look forward to touching down in one of Missouri's most formative and icon-filled destinations. Whether you're travelling for business or to visit attractions like the Missouri Botanical Garden, Busch Stadium or the Fox Theatre, you can rest assured that you'll get from Montreal to St. Louis swiftly, safely and comfortably with WestJet.

For a safe, comfortable and caring air travel experience, book with WestJet.