We're going on the Alps and Dolomites trip in August. We booked our airfare in November (United). So far, we've received 10 notices of flight changes, most of them trivial. At least once they changed the flight number without a schedule change and later changed it back. This is way more changes than I've ever experienced. Is anyone else seeing this? Is it just United, or this this an industry wide phenomenon? Our other trip, on British AIrlines, has had three changes, which seems more typical.