Taxis are not all yellow, so look for the taxi light on top of any ordinary looking car. And of course you'll be driven by Montreal drivers, so hold on! Taxis can normally hold 4 passagers - 3 in the back, 1 in the front. Taxis can be hailed in the street or found at a taxi stand throughout downtown -- and you're not supposed hail a passing cab within sight of a stand. Taxis all use meters, you don't negotiate, and there is a fixed price to travel from/to the airport and the downtown core and it is exactly CAD $38.00. It is standard practice to tip a taxi driver -- some people say 10%-15%, others say $1 or $2.
You can phone for a cab, too, but you'll have to give an address and name — if you are outside, simply look for the number of a building and stand in the doorway; if you manage hail a taxi before yours comes, it would be polite to phone back and cancel. The four biggest companies are: Taxi Diamond (514-273-6331), Taxi Co-op (514-725-9885), Taxi Hochelaga (514-256-9033), and Taxi Champlain (514-273-2435). A complete list can be found on http://www.canada411.ca/.
In addition to cabs, limousines are available for travelling in style (at the airport or by phoning in advance), normally for around $50 one-way.
