Had my flight scheduled for night of Nov 1st from Bogota to New York. They let all passengers check-in process through security and to the waiting room. Flight was scheduled for 11pm. At 1130pm when all passengers are seated waiting for boarding they announce Flight cancelled (Delayed according to them). We have to leave and come back at 5am. They keep the bags. They seem to have joined to flights since new faces showed up at the 0715 flight. We confirmed with them that since it is another plane are bags will make it to JFK on the same plane with us and 3 staff members say YES to this. We arrive at JFK and and on baggage claim there is one lady from Avianca. She announces that over 100 bags were left in Bogota and they do not know when they will come. The plane in which we came was smaller and could not handle all the luggage. Bottom line is we are getting a run around on the bags and nobody knows when and if I might get them. Never again with them.