The 747 bus is now rolling to and from Trudeau airport.

The airport express will be on the road 24 hours a day, running back and forth from Berri-UQAM metro on a route that is scheduled to take anywhere from 45 to 60 minutes.

In reality, this morning's runs were taking less than half an hour, according to one of the first passengers, Guy Lavoie.

"It's very economical and very fast, at least at this hour," said Lavoie. "It took 24 minutes to join the airport. It's better than in a taxi cab."

Before heading along the Ville-Marie and the 20, the 747 makes half-a-dozen stops along Rene Levesque.

Boarding the bus costs more than the standard $2.75 fare.

Instead commuters must use one of several transit passes: one-day, three-day, weekly, or a monthly pass, all of which will be available at the airport.

Passengers can also pay $7 cash if they prefer, although it must be in coins, which was a problem for some people Monday.

Monday also marked the beginning of two other bus routes.

The 427 Express St. Joseph started rolling on a limited-stop run between Rosemont - La Petite Patrie / The Plateau and downtown Montreal.

It runs every ten minutes during rush hour in the morning and afternoon.

Meanwhile the 120 is a new bus running from Angrignon metro to Lachine and Lasalle.

This route will provide service to the Lachine and Lasalle hospitals, L'Octogone library, and Cégep André-Laurendeau.