We went to Neets Bay in early August last year. Saw loads of bears. Flight not as long as advertised in brochure but spectacular and the weather was wonderful. It all depends on the salmon whether you see bears or not. Some people on our cruise went to Traitor's Cove, on the same day, and didn't see any bears. We were told that the salmon run a bit later there. However, even if the salmon are running, I guess you could still be unlucky if you get to a viewing area at just the wrong time. We were at Neets Bay from about 10-11a.m. We found it quite difficult to find out about the best places to go until we found this web-site.
Hope you are as lucky as we were!