Montreal has a developed transport infrastructure network, which includes well-developed air, road, rail, and maritime links to the rest of Canada, as well as the United States and the rest of the world. Local public transport includes a metro system, buses, ferry services and cycling infrastructure.

Montreal is one of the transportation hubs for eastern Canada and most of Quebec. The city has two international airports, Dorval Airport for passenger flights and Mirabel for cargo. Rail transportation includes intercity trains operated from Montreal Central Station to Quebec City, Ottawa, Toronto and New York City as well as commuter trains. Public transit in Greater Montreal is operated by several public transit providers. Montreal is subject traffic congestion, particularly the Island of Montreal which is a hub for the Autoroutes of Quebec. Montreal is known for being one of the most bicycle-friendly cities in the world, with an extensive bikeway network and cycling mobility.

Air

Montreal has two international airports, one for passenger flights only, and the other for cargo. Montréal-Pierre Elliott Trudeau International Airport (also known as Dorval Airport) in the City of Dorval serves all commercial passenger traffic and is the headquarters for Air Canada and Air Transat. To the north of the city is Montréal-Mirabel International Airport in Mirabel, which was envisioned as Montreal's primary airport but which now serves cargo flights along with MEDEVACs and general aviation, as well as some passenger services.Hélibellule fait revivre le transport des passagers à Mirabel In 2016, Montreal-Trudeau was the third busiest airport in Canada by both passenger traffic and by aircraft movements, behind Toronto Pearson and Vancouver. In 2016, the airport handled 15.6 million passengershttps://calgaryherald.com/Business/loses+title+third+busiest+airport+expects+further+traffic+decline/1499974/story.html and 225,203 aircraft movements. With 61% of its passengers being on non-domestic flights, it has the largest percentage of international flights of any Canadian airport. Trudeau Airport is served by 40 carriers to over 100 destinations worldwide. Airlines servicing Trudeau offer flights to Africa, Asia, Central America, the Caribbean, Europe, the United States, Mexico and other destinations within Canada. Trudeau Airport is home to the largest duty-free shop in North America.

Other airports in the Montreal area serve military and civilian use. Plattsburgh International Airport in the United States—closer to Montreal's southern suburbs than Trudeau—also serves the area.

Public transportation to Montréal-Pierre Elliott Trudeau International Airport is provided by the Société de transport de Montréal's bus line 747. A branch of the light metro Réseau express métropolitain (REM) will connect to the airport upon completion, intended for 2027.

Rail transportation

Intercity passenger service VIA Rail, which is headquartered in Montreal, provides rail service to other cities in Canada, particularly to Quebec City, Ottawa, and Toronto with several trains daily on its Quebec City-Windsor Corridor.

Amtrak, the US national passenger rail system, also provides service to Montreal, operating its Adirondack train daily between Montreal and New York City.

All intercity trains operate out of Central Station. VIA and Amtrak trains also stop at several suburban stations, the largest of which is at Dorval, adjacent to the airport.

Regional passenger service Regional passenger train service, geared largely to daily commuters to Montreal's central business district, is operated by Exo. Six train lines operate out of the Lucien-L'Allier and Central stations with Parc, Vendome, De la Concorde, and Sauvé as secondary stations. These facilities are all stops on the Metro system as well. Lines are operated under contract by Canadian National and Canadian Pacific. In some cases, Exo owns the track and infrastructure.

Freight service Canadian Pacific Railway (known as CP or the CPR), now headquartered in Calgary, Alberta, was founded in Montreal in 1881. Its corporate headquarters occupied Windsor Station at 910 Peel Street until 1995. With the Port of Montreal kept open year-round by icebreakers, lines to Eastern Canada became surplus, and now Montreal is the railway's eastern and intermodal freight terminus. CPR connects Montreal with the Port of Montreal, the Delaware & Hudson Railway to New York, the Quebec-Gatineau Railway to Quebec City and Buckingham, the Central Maine and Quebec Railway to Halifax, and CN Rail. The CPR's flagship passenger train, The Canadian, once ran daily from Windsor Station to Vancouver. CP's passenger services were transferred to VIA Rail Canada in 1978.

Montreal-based Canadian National Railways (known as CN or CNR) was formed in 1919 by the Canadian government following a series of country-wide rail bankruptcies. CN was formed from the lines of the Grand Trunk, Midland and Canadian Northern Railways, and has risen to become CPR's chief rival in freight carriage in Canada. Like the CPR, CN transferred passenger services to VIA Rail Canada, now a crown corporation, but once part of CN itself.

Public transit

Greater Montreal is served by a number of public transit providers.

Société de transport de Montréal

The STM serves the Island of Montreal as well as islands of Bizard, des Soeurs, Notre Dame, and Sainte-Helene. The bus network consists of 165 daytime and 20 night-time service routes. STM also provides paratransit and limited wheelchair-accessible buses.

Metro

The Montreal Metro, a subway system, was inaugurated in 1966 and today has 68 stations spread out along its four lines.Plan du métro de Montréal All but five stations are on the Island of Montreal and in STM's territory. Each station was designed by different architects with individual themes and features original artwork, and the trains themselves run on rubber tires, making the system quieter than most. The project was initiated by Montreal Mayor Jean Drapeau, who would later bring the Summer Olympic Games to Montreal in 1976. The Metro system has long had a station on the South Shore in the city of Longueuil, and in 2007, extended to the city of Laval, north of Montreal with 3 new stations.

Since Sunday, February 7, 2016, the new Azur metro cars are accessible to the users, one of the many features of these new cars is that they can accommodate up to 8% more passengers than the current models who have been running since inauguration of the metro.

The city of Montreal has announced plans to convert its entire fleet of buses over to all-electric by 2040.

Société de transport de Laval

The city of Laval, on neighboring Île Jésus, is served by the Société de transport de Laval (STL). The STL runs 40 routes, many of which connect to one of the three Laval Metro stations or to the RTM train station at Sainte-Dorothée. Other bus routes connect to Metro stations on the Island of Montreal, including Côte-Vertu and Henri-Bourassa.

Réseau de transport de Longueuil

Service to the densest part of Montreal's South Shore is provided by the Réseau de transport de Longueuil (RTL). RTL's numerous routes serve the Terminus Centre-Ville, the Longueuil Metro station, and several Exo train stations.

Exo

Exo provides commuter bus (as well as commuter rail) services to suburbs not served by the RTL or STL, via direct/express or feeder routes. In 2017, the Exo network carried more than 190,000 commuters daily.

Ferry services, summertime only

From late spring to early autumn, pedestrian/cyclist ferry service links the Old Port of Montreal, Saint Helen's Island, and the South Shore communities at Longueuil, a distance of .

Mid-July 2016, a proposal was suggested by a competing riverboat operator at establishing summertime weekday rush-hour pedestrian ferry service between the downstream, northeastern, outermost borough of Rivière-des-Prairies-Pointe-aux-Trembles and the Old Port, an approximate distance of . The city permanently adopted summertime sailings as of May 2019, and expanded service to seven days and six evenings per week. Having customarily trialed at 30 knots (approximately 34½ miles or 55½ kilometres per hour), implementation of the service has consequently seen its speediness reduced by at least one quarter; nonetheless, with its service even doubled during weekday peak hours it provides the valley with its swiftest sailings, and it even outpaces road traffic between its two docks.

Other scheduled Island of Montreal services:

Lachine - Île Saint-Bernard (Châteauguay) Mercier (Montreal) - Île Charron (Longueuil) Pointe-aux-Trembles > Varennes (south shore) > Repentigny (north shore) > Pointe-aux-Trembles—a one-way circuitous trio of journeys that total 1½ hours' sailing time (roughly ½ hour each one).

Further nearby scheduled St Lawrence River services include:

Boucherville - Île Grosbois Île à Pinard - Île Sainte-Marguerite—entirely within Quebec's Boucherville Islands Park Lavaltrie - Contrecœur Les Coteaux - Salaberry-de-Valleyfield Longueuil - Île Charron Notre-Dame-de-L'Île-Perrot - Beauharnois Notre-Dame-de-L'Île-Perrot - Pointe-des-Cascades

Réseau express métropolitain

On 22 April 2016 the forthcoming automated rapid transit system, the Réseau express métropolitain, was unveiled. Groundbreaking occurred 12 April 2018, and construction of the network – consisting of three branches, 26 stations, and the conversion of the region's busiest commuter railway – commenced the following month. The first phase for five stations was opened on July 31, 2023 with a second phase opened at the end of 2025. Seven more stations are slated to open, becoming the fourth largest automated rapid transit network after the Dubai Metro, the Singapore Mass Rapid Transit, and the Vancouver SkyTrain. Most of it will be financed by pension fund manager Caisse de dépôt et placement du Québec.

Statistics The average amount of time people spend commuting with public transit in Montreal, for example to and from work, on a weekday is 87 min. 29.% of public transit riders, ride for more than 2 hours every day. The average amount of time people wait at a stop or station for public transit is 14 min, while 17% of riders wait for over 20 minutes on average every day. The average distance people usually ride in a single trip with public transit is 7.7 km, while 17% travel for over 12 km in a single direction. Material was copied from this source, which is available under a Creative Commons Attribution 4.0 International License.

Road network

Like many major cities, Montreal has vehicular traffic congestion, especially from off-island suburbs such as Laval on Île Jésus, and Longueuil on the south shore. The width of the Saint Lawrence River has made the construction of fixed links to the south shore expensive and difficult. There are only four road bridges along with one road tunnel, two railway bridges, and a Metro line. The far narrower Rivière des Prairies, separating Montreal from Laval, is spanned by eight road bridges (six to Laval and two directly to the north shore).

On the Island of Montréal motorists are forbidden from turning right while facing a red traffic signal, a move permitted elsewhere in the Province of Quebec.

Limited-access highways (autoroutes)