SWISS has launched a fare sale from Zurich to Montreal with fares as low as CHF 599 (€486 / $653).
Tickets must be booked between 13 and 21 November and travel must take place between 20 November and 28 February 2014.
Though these are the official dates of the fare sale, when I looked for dates during the last 2 weeks of December and first week of January the sale fare was not available. Considering that this period covers Christmas and New Year, this should come as no surprise. However if your plans do not involved needing to travel over the Holiday, this is a fairly attractive sale.
Please note that these fares MAY not credit full mileage credit to your frequent flyer program since they book into SWISS’ ‘K’ fare. Earning miles on discounted fares varies greatly by frequent flyer program, so please be aware of that!