Yeah, a Hohmann transfer to Saturn would take a very long time. The trip is long enough, though, that it would make a lot of sense to spend months accelerating under an electric drive in order to achieve a faster transfer. But it is 10 km/s even for Hohmann burn and once you get there you need to shed 4 km/s. In theory you could aerocapture but that isn't something we have the technology for right now. Well, we know how to aerocapture straight into a descent so you could go that route if you're headed to Titan but not anywhere else around Saturn.