Everyone that was invited knew where we would be staying and when the wedding would be long before flight schedules came out, in fact most of them had already put down a deposit on their rooms!! That being said, we sent out our STDs exactly 1 year in advance so they did arrive about a month before flights were published so we just sent an email update when flights became available. I agree that a wedding website is also a good idea, I'm not sure how many people are actually looking at mine though! :S