1. Arriving by air
All international and domestic passengers arrive at Montreal-Pierre Elliott Trudeau International Airport YUL (or YMQ - all Montreal airports), normally just called Montreal-Trudeau or PET or by its former name, Dorval, which is also the name of the suburb where it is located about 20 km from downtown.
For general info, see the airport's Access and Parking page.
>> Taxi/ limousine
You can catch a taxi or a limousine near the central exit on the Arrivals level.
Taxi rates are fixed at $40 to downtown, and meter to other destinations with a minimum charge of $17. It is customary to tip the driver anywhere from 10% to 20%, with 15% being the average. Visa, MasterCard and American Express are often, although not always, accepted, and most drivers accept American dollars as a courtesy. Although there are some mini-van taxis, most are mid-sized cars that can legally fit up to 4 passengers (3 in the back, 1 in the front); however with luggage and especially if the taxi is a small car, the practical limit from the airport is probably 3. For more on taxis in Montréal, see TA's Taxis and Rental Cars page or the Bureau du taxi for normal taxi fares and downtown limits (in French .pdf, and are posted on the window of every taxi).
Limos have fixed fares to downton at $49.50 for normal limo or $54.50 for "luxury" limo. As with taxis, the fares do not include a tip, which is customary. There are other fares for many destinations throughout the province listed here. For non-listed destinations, the fare should first discussed with the limo driver prior to embarking; the cost should reflect the average fare for similar destinations.
>> 747 express bus
For $9 the 747 express (pdf) will take you to downtown officially in 45 minutes but likely more and sometimes less depending on traffic; the bus is equipped with WiFi and has tourist/transit maps available. The $9 fare gives you a 24h pass good for the métro (subway) and on-island busses run by the STM, Montéal's transit authority; off-island busses and trains are run by other transit authorities and have separate fare structures. You can buy the pass at the international arrivals level STM ticket machine which accepts cash, debit, and credit cards although some report that their American cards do not work; you can also buy a pass at the ICE foreign exchange counter, or on the bus itself with exact change in coins only (no bills). The bus stops at the Lionel-Groulx métro station and a few stops downtown, including one close to the Gare centrale (central train station) and ends at the Gare d'autocars (bus station) located above Berri-UQAM, the main métro stop on the eastern edge of downtown. The 747 bus also accepts 3-day or weekly passes if you have an Opus card.
>> Regular bus (public transit)
For a regular fare of $3 (coin only, no bills on the bus), you can get downtown by regular public transit, although it's more difficult and time-consuming, especially with luggage since it involves transfers, some walking, and a bus that runs only every 1/2 hour. Catch the 204 Cardinal direction est to the Dorval Terminus; if it drops you at the train side, simply take the tunnel underneath the tracks to get to the bus side. Then catch the 211 Bord-du-Lac direction est to the Lionel-Groulx métro station where you can take the green or orange line to downtown. See TA's public transportation page for more on Montreal's excellent transit system.
>> Car
The main highway 20 normally takes 15-20 driving minutes to downtown, but rush hour traffic or road construction can make the trip take twice as long if not more. If traffic is particularly bad, smart drivers choose the 520 and then the 13, but it's quite a detour and both can get as congested. For a nicer but slower route that is a lot more scenic: from the airport exit follow the "av. Dorval" (Dorval Avenue) signs, then continue to Lakeshore Road (Bord-du-Lac). Take a left and enjoy the ride and the sights to downtown following the shore of Lac Saint-Louis passing through historic Lachine, Ville St-Pierre or the west end of Montreal.
Renting a car at the airport can be more expensive so it may cost less to pay a taxi to the airport but rent a car from a dealership in town. Or may not, so do some research. Keep in mind that a car may not be necessary at all for your stay in Montreal since it is a fairly compact, walkable city with an efficient, safe, and clean transit system.
>> Train
The airport is not well served by train, with an infrequent schedule based more on commuters or inter-city travel, and no direct connection to the train station. There are two train services (with different train stations): the AMT commuter train requires that you first take the 204 Cardinal direction est for $3 to the Dorval commuter train station, and then the Rigaud/Dorion-to-Montreal train to downtown for $7; see the schedule. Via Rail's $12 Air Connect offers a free shuttle to the Via Dorval train station.
>> Service to Québec City
If you are heading directly to Québec City and the schedule happens to fit, a few intercity buses go to and from Montréal's airport (see Orléans Express Airport Service), so no need to make your own way to the bus station. Tickets are available at the airport at the Aérobus counter outside. Note that the bus may stop at the downtown bus station and the Longueuil métro station to pick up more passengers; as well, in Québec City it may stop at the Sainte-Foy bus terminal just a few minutes after crossing the Pierre Laporte bridge; most tourists will probably be staying in or close to the old town, so stay on the bus to the last stop at the Gare du Palais.
2. Arriving by train
The train station -- Gare centrale or Central Station -- is located downtown and is connected through the underground tunnels to both the Bonaventure métro (subway) station on the orange line and, a little further, McGill métro on the green line. Note that there is quite a bit of walking through tunnels and with escalators and a few short flights of steps so if you're loaded with luggage, a cab ride to your destination will be less strenuous. If you have large luggage that will not fit through the revolving doors into the Bonaventure métro, there is a swing door beside them; push the unmarked square button and wait about 10 seconds for a long tone to indicate that the door is unlocked. The train station is also the terminus for the Montreal-Deux Montagnes and the Montreal-Mont Saint Hilaire commuter train lines, and the tunnels also lead to the 1000 de la Gauchetière bus terminal that serves the south shore suburbs and to the Gare Lucien-l'Allier for other commuter trains serving the north, west, and south shore suburbs. See TA's public transportation page more info on public transit; for useful maps see the STM's map page or this métro map that includes the street grid above the stations, or check out this comprehensive fan website that includes the history of the métro, list the works of art in the different stations, and even gives a subjective rating for how nice each station is architecturally.
3. Arriving by bus
The Bus Terminal (Gare d'autocars de Montréal or Montreal Bus Station) is located at 1717 Berri, between de Maisonneuve and Ontario streets right by the Berri-UQAM métro station. There are normally taxis available outside the main doors on Berri, or you can hail one from the sidewalk if there are none. The bus station has recently moved its entrance and had a few name changes so locals may refer to it as Station centrale or even Terminus Voyageur after the old bus company's name; the bus station is not to be confused with the train station which is called the Gare centrale or Central Station, located downtown close to the Bonaventure métro station.
4. Arriving by car from the USA
To cross into Canada from New England, most people take US Interstate 89 from Vermont through to the Canadian border or the I-87 from upstate New York. Citizens of many countries -- particularly the U.S., European, and commonwealth countries -- do not require visas, but others do; see this list. U.S. citizens must have a valid U.S. Passport or Passport Card to re-enter the U.S.; these are recommended for children under age 16, but an official birth certificate with a raised seal is accepted. Children who are travelling without their parents/legal guardians must have written parental consent including phone numbers and addresses and which should, if possible, indicate the length of stay in Canada and the name and address of the person they will be staying with in Canada.
>>Customs
You must declare all weapons, firearms or explosives at the border, as well as any plant or animal products. Each adult is allowed to bring up to 1.5 liters (53 imperial ounces) of wine, up to 40 ounces of spirits, up to 8.5 liters of beer or ale, 200 cigarettes, 50 cigars, 7 ounces of manufactured tobacco and 200 tobacco sticks. You are allowed to bring gifts that you are leaving with persons in Canada, but you must declare the value of all gifts. You can bring money into Canada for your own use, but if you bring $10,000 or more in cash or monetary instruments you must declare it.
Further information is available in Information for Visitors to Canada.
>>Crossing the St. Lawrence: Champlain Bridge
It is about one hour from the border to Montreal. Consult your map or your GPS for specific directions to your end destination. The Champlain Bridge is now under a several-year reconstruction plan which can cause substantial delays, and during rush hour there are reserved bus lanes so it is best to time your arrival before or after. If traffic is horrendous, there are other bridges -- the Mercier, Victoria, Jacques Cartier, and the Hippolyte-Fontaine tunnel that you can take, although it increases your time and of course they may be no better.
