How long would Bellingham - Ketchikan take during the summer?
We took our sailboat from Anacortes to Ketchikan [and beyond] the summer of 2014. We spent 4 weeks on that leg of the trip enjoying much of what BC has to offer along the way. That included a 4 day visit with friends on Gabriola Is., a few other overnighters because we could, and 4 Wx days.
We could have easily taken much longer, but had other commitments further north...
We could easily cut that time in half or better- Wx pending- if we didn't want to stop and smell the roses, but I've done that too many times in the past and wouldn't want to do that again...
As you already know you will be planning around tides and currents in many areas, and there will likely be a few weather delay days.
If you haven't been to Ketchikan before, it is a very busy hub in the summer time [Typically 4- 5 cruise ships in port at a time... Lots of float planes doing touch-and-goes all day long in the channel...] You won't find any peace and quiet anywhere near there... It is great for provisioning, fueling, and boat parts/yards.
Heading into Misty Fjord and circumnavigating the island Ketchikan is on will yield quieter surroundings- as will heading further north...
If you start firming up plans to make it to Alaska let us know and we can share some places we enjoy visiting.