How can I find out the flight plan of a plane trip after the trip has ended?

Flying from dallas, texas to san francisco, california and back the plane seemed to take two different flight patterns. The landscape was so interesting. I'd like to know what all we flew over so that I can look up these places on a map. So, how can I find the different routes that planes take to and from these destinations?How can I find out the flight plan of a plane trip after the trip has ended?Just enter flight number tail number whatever into the Tracker. Listed in sources.