Omni provides a lot of charter work in the Seattle area, presumably military work for JBLM.  The planes usually operate from SeaTac but then will reposition to Boeing Field.  There is often an Omni 767 parked up at the south end of the field but I have not ever seemed to have been there when they are moving.  More recently, I happened across one coming in to land after a short trip from SeaTac (I could probably have driven it faster given the routing that they had to take).  It was nice to see one up and about so it prompted this post with a few Omni 767s.