Thanks for all the responses... this is what I was looking for. The prices vary quite a bit - we are flying from West Cost (SEA) and I've seen prices where they are the same sometimes, or a $400 difference. It sounds like the Ferry can be an ordeal but can be a way to save money.
Don't forget to factor in the ferry costs as well. $400 a person difference round trip, I'd go through STT. $400 total difference round trip and I'd go through EIS. It is worth paying more, but within reason of course.
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