Also not YEG specific, but United is downgrading several serivces to Canada this winter:
UNITED W10 Canada Operation changes
As per 08SEP10 GDS timetable display, the following is UNITED’s changes to planned Winter 2010 operation to Canada. Only those with significant adjustments are listed:
Chicago – Calgary 1 of 3 Daily Service continues to operate by UNITED Mainline in W10
Denver – Calgary 5 Daily UNITED Express Service (compared to Mixed Mainline/Express in W09)
Denver – Ottawa Service canceled, not resuming in Winter 2010
Denver – Vancouver 04NOV10 – 15DEC10 3 Daily service CRJ700 replace Mainline
Los Angeles – Vancouver 2 Daily UNITED Express Service (compared to 3 in W09)
Washington Dulles – Halifax 04NOV10 – 17FEB11 Service Temporary Canceled
http://airlineroute.net/2010/09/08/ua-w10-canada/
And Air Canada is suspending Calgary-Portland and Calgary-Seattle for the winter.