I am curious (not being that well informed here). I was due to be flying with Avianca from GPS to UIO in June but cancelled a few weeks back (it was a UA mileage ticket so no issues). However, I am re-arranging my vacation for December and see Expedia is still selling Avianca (Ecuador) tickets from GPS - UIO and Expertflyer advises other AV services.

Surely if the are BK they can't sell tickets ? and who would want to buy them given the current situation ?