If you don't feel like spending many hours in a train, you can consider travelling by plane. Especially if you have the possibility to book in advance, flying to Montreal can be definitely cheap.
Which stations do the trains to Montreal leave from?
You can take the train to Montreal at CENTENNIAL or TORONTO UNION STATION, which arrives at MONTRÉAL.
How many connections are there to go Montreal from Toronto by train per day?
7 train connections exist to reach Montreal from Toronto per day. Please be aware that among these connections there are 7 routes with at least a change versus zero direct lines. So you will have to take another train.
What time do the trains to Montreal leave and how long is the journey?
The first train to Montreal leaves at 07:07, whereas the last one at 13:07. On average, the journey lasts 7 hours and 50 minutes, but with the fastest connections you will be in Montreal in 6 hours and 40 minutes.