Personally I'm just skipping over it. I have text explanations about where we're going. So when you appear in the new zone, there's also a "we've arrived" message. The lack of passage of time doesn't bother me much, since it's much like a new scene in a TV episode. As long as it's clear in the descriptions and the zones what has happened, I don't think you need to go out of your way to have long travel scenes. Quite the opposite, actually, since if you go out of your way for realism, you can damage the story flow.