CST3 in 20 seconds
Montreal / St-Lazare Airport serves Montréal, CA.
AirportRoutes · updated Dec 11, 2025
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Common questions about CST3
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Where is Montreal / St-Lazare Airport located?
Montreal / St-Lazare Airport is located in Montréal, CA, at an elevation of 175 ft. Its IATA code is — and ICAO code is CST3.