Another great option for a weekend plus a couple of days. Flights to Milan stay cheap all winter long and there are many ski resorts accessible from there.
Direct flights by Ryanair (...)
Fri 8:00 PM – 9:45 PM >>
Mon 8:40 AM – 10:25 AM <<
Taking Monday off, riding on Saturday and Sunday, staying 2 nights in Bergamo.
Car rent: 3 days from 60eur.
Courmayeur: 220 km; cheap transfer should be available.