Hello, Will be making plans to fly and visit my In Laws in CZ for Xmas. When is the best/cheapest time to purchase plane tickets? 6 Months out (Right Know) 4 " " 2 " " 2 weeks out. 1-2 days before departure. I plan on going Dec 20,- Jan4th 2004 My wife and 4 month old baby plan on Dec 20 -Jan 18th? We fly out of San Francisco. Any past experiences or advice would be apprecaited. Thanks