I see the airports website says that only easyjet have cancelled flights with no mention of the hoards of other airlines that are now refusing to fly into the airport. The airports arrivals board though shows a different story.
Yes, BA, EZY, FCA, TCX, Air Malta, KLM(from the 1050 on), XLA, have all cancalled their flights out of Bristol with most transferring PAX to CWL or BHX.