Originally Posted by Zorak

One possibility is http://planefinder.net which has a historical playback feature -- if you click on the "playback" button in the upper right you can change the date within a 2 week range. They have data going back to I think 2011, and I'm certain the entire time period used to be available in playback, because I used it to look up some older international flights when I was filling in some gaps in my flight log last December, but I can't figure out a way to get past 2 weeks anymore, which is a pity.

They also have smartphone apps which may or may not have the same 2-week limitation.