Trish,
Where you fly to/from depends on your itinerary. If you choose an Inside Passage cruise, you'll either sail round trip Vancouver or round trip Seattle. As Sue pointed out above, fares to/from Seattle are usually much cheaper than those to Vancouver. Unless you're sailing from Seattle, you'll have a several-hour trip to get to/from Vancouver, and need to add in that cost. If you're planning on a "Glacier Route" itinerary, that's one-way heading north or south between Vancouver (South) and Anchorage (ports of Whittier or Seward). One of your airports would then be Anchorage, and that's a LONG flight.
Anyway, your airports will either be Seattle, Vancouver or Anchorage.
Post Edited (07-03-04 17:31)