Seattle Round Trip - How much Inside Passage

Booked Celebrity Solstice RT Seattle for this summer but now thinking maybe better to do a Vancouver Round Trip or possibly one way. I was wondering during the Seattle cruise on the way to Victoria how much of time do you actually spend cruising the inside passage? The detailed itinerary I got from travel agent shows cruising Inside Passage 6:30-10:30 PM on the night leaving Skagway and other times just cruising.

fyi..... there are TWO inside passages. The Alaskan North and the Canadian South.

https://en.wikipedia.org/wiki/Inside_Passage

If you want to see the Southern passage... you need to have Vancouver as a port.

Did you look at the itinerary/route map? click on "View Itinerary map" https://www.celebritycruises.com/itinerary-details?packageID=SL07A152&sDT=2018-06-01&cCD=CO&aCB=false

With most Seattle sailing, a great deal of the first and last sailing days are open ocean. Also have the roughest potential.

All the major cruise lines have opted for more- "open" sailing, compared to several years ago. I think is far more important to determine the whole choice. Many factors are going to go into a selection.