We will be cruising into Yokohoma and flying out of Tokyo Haneda after staying in Shinjuku for 3 nights. Our plans are to take the Limousine Bus to Haneda. I'm trying to figure out how much time is necessary for Check in/Security/Customs prior to our flight so I can calculate what bus we should take. We are flying Delta Business Class. Do they offer a Priority line? Since we aren't flying into Haneda I don't have a way to guage this. Is the airport busy? I found good information for the check in/ Security/ Customs process but not as much detail as I'd like to have.

Thank you