Here is a cheap Canada Flight for you.
We found this one way fare from Montreal (YUL) to Berlin, Germany (SXF) is $89 CAD on WOW Air. This price includes your fees and taxes but does not include extras such as your baggage charges.
WOW air charges for each carry-on bag ($64) or each checked bag ($90). Even with these fees it is still a great deal as the regular price is between $380-$520 one way.
Available departure flights for $89 include:
March 8,9, 12, 19, 20, 26,27
The cheapest return flight is March 24 for $309 CAD on the WOW air Canada site. Here is a trick though. If you go to the WOW air German site, you can get return flights for as low as $129 EUR which is around $180 CAD. The flights have to be booked separately as one way flights to get these deals.
Booking the tickets separately with one checked bag each way March 8-22 will cost you $449 CAD. Booking them by return flights for the same days, one checked bag each way comes up as $519 CAD.