Some interesting solution to visit Canada this autumn 2015 is available when using service of KLM and departing from Brussels or Antwerp via Amsterdam. Return flights from Belgium to Montreal in Canada are currently available already for €357 or £258! Please note that some of the bookings are based on rail connection betwern Belgium and Amsterdam from where you would depart directly to Canada. In any case you can not skip first leg of your outbound flight otherwise your ticket would be voided..
If you consider to book your ticket based on this KLM promotional sale please look for travel dates between 1st of September till 15th of December 2015. (based on date of your outbound flight to North America). This promotion deal with KLM is valid for booking made till 24th of July 2015. We recommend to use service of Skyscanner to quickly find out which airlines are available from your hometown. Please refer to below booking samples if interested in this deal.
Booking samples
Belgium - Montreal from €368 (travel sample 29.10. - 14.11. ex Brussels)
Travel date samples - The easiest way is to search directly via KLM web site. They offer +- 3 days view so you can easily select travel dates that suit you the most.
Booking sample of cheap return flights from Belgium to Canada (Montreal) from €357/£258 here. In this case you would be departing from Brussels to Montreal on 29th of October. You would be then returning back from North America to Europe on 14th of November 2015.