We are flying to Zurich next month, and I keep checking our flight's seats. About 8 months ago, it appeared only 10 seats were booked on the plane. I recently checked (one month in advance) and only half the plane is full.

Will US fly this plane with so many empty seats? I know more seats can be sold b/w now and then, but in this travel climate, are that many people going to be booking last min. fares to Europe?