I've seen a lot of time travel movies. A lot that aren't on this list in fact. But these are the ones I enjoyed at least in some capacity.
CONTACT - Love the movie to death, but it's debatable whether this is a time travel movie or not. In fact it does indeed have a moment of time travel in it, but my gut reaction is to not include it in the time travel sub-genre. Same thing with THE MAN FROM EARTH.
Personal Note: TT movies I'd like to get to include:
The Visitors
The Navigator
Berkeley Sqaure
Sound of My Voice
Ditto
Idaho Transfer