<Tr> <Td> Saint - Mathieu - de-Beloeil Aerodrome </Td> <Td> CSB3 </Td> <Td> Saint - Mathieu - de-Beloeil </Td> <Td> 45 ° 35 ′ 24" N 073 ° 14 ′ 19" W ﻿ / ﻿ 45.59000 ° N 73.23861 ° W ﻿ / 45.59000; - 73.23861 ﻿ (Saint - Mathieu - de-Beloeil Aerodrome) </Td> </Tr> <P> Montréal - Trudeau (formerly known as Dorval), handles the scheduled passenger service for Montreal . Mirabel formerly also handled scheduled passenger service, but it has been discontinued and the airport is little used . Saint - Hubert is the major general aviation reliever for the city, though Trudeau also sees a lot of general aviation traffic . </P> <P> Plattsburgh International Airport in Plattsburgh, New York, 60 miles from Montreal, promotes itself as "Montreal's U.S. airport," providing a secondary airport for southern Quebec as well as neighbouring northern New York . 75% of passengers departing the airport are Canadian . </P> <Table> <Tr> <Th> Airport name </Th> <Th> ICAO / TC LID / IATA </Th> <Th> Location </Th> <Th> Coordinates </Th> </Tr> <Tr> <Td> Montréal / Boisvert & Fils Water Airport </Td> <Td> CSA4 </Td> <Td> Rivière des Prairies, Montreal </Td> <Td> 45 ° 38 ′ 44" N 073 ° 35 ′ 49" W ﻿ / ﻿ 45.64556 ° N 73.59694 ° W ﻿ / 45.64556; - 73.59694 ﻿ (Montréal / Boisvert & Fils Water Airport) </Td> </Tr> <Tr> <Td> Montréal / Marina Venise Water Airport </Td> <Td> CST8 </Td> <Td> Rivière des Mille Îles, Montreal </Td> <Td> 45 ° 37 ′ 57" N 073 ° 46 ′ 44" W ﻿ / ﻿ 45.63250 ° N 73.77889 ° W ﻿ / 45.63250; - 73.77889 ﻿ (Montréal / Marina Venise Water Airport) </Td> </Tr> <Tr> <Td> Montréal / Île Sainte - Hélène Water Airport </Td> <Td> CPV2 </Td> <Td> Saint Helen's Island, Montreal </Td> <Td> 45 ° 31 ′ 15" N 073 ° 32 ′ 20" W ﻿ / ﻿ 45.52083 ° N 73.53889 ° W ﻿ / 45.52083; - 73.53889 ﻿ (Montréal / Île Sainte - Hélène Water Airport) </Td> </Tr> <Tr> <Td> Saint - Mathias Water Aerodrome </Td> <Td> CSV9 </Td> <Td> Richelieu River, Saint - Mathias - sur - Richelieu </Td> <Td> 45 ° 30 ′ 10" N 073 ° 15 ′ 08" W ﻿ / ﻿ 45.50278 ° N 73.25222 ° W ﻿ / 45.50278; - 73.25222 ﻿ (Saint - Mathias Water Aerodrome) </Td> </Tr> </Table>

Which montreal airport is best to fly into