Last year, they left Kimmel to head straight to the X-Files premiere, and they went in separate cars. I don’t think they travel together usually, even when going to the same place.

How do you know they went on separate cars? I remember pictures of them leaving Kimmel separately, leaving the premiere separately too, but I don’t remember anything about them leaving Kimmel. It was taped during the early afternoon, if I remember correctly, and the premiere was later in the evening, so I don’t remember we knew what happened in between. 

They did travel together in San Diego in 2013 to go from their hotel to the comic con, though.