The baby boomers who kind of pioneer the european travel for americans, those folks would book two weeks, planted out a year in advance. millennial are much more seat-of-the-pants and they are big time travelers. you are singing all over the country. what i like to do is, look at google sites. google flights lets you put in your start city. for me, it is philadelphia. and then the destination city, hit a link that says explore destinations. for my dates and nonstop travel, it will give me cities all over the country. as i move the map, all around the world. you can literally at random same i h...