Are you traveling with or without kayak?
Option A Go through Argentina: You'll take a series of buses through Argentina's Esquiel and Bariloche then onto Pucon. If you are a budget traveler who can handle close to 24 hours of travel in and out of bus stations then this is a good option.
Option B Take the Chaiten to Puerto Montt Ferry: You can take an overnight ferry and actually get some sleep. Here's how the trip breaks down.
Drive about 4.5 to 5 hours from Futa to Chaiten. Catch the 9-10 hour ferry to Puerto Montt. Then drive another 5 hours to Pucon.
I lead groups of 20 and use the ferry. It's pretty cool to sleep on the deck and take a big boat ride through Patagonia. Plus it's just more relaxing than the haul through Argentina.
If you need a place to stay or kayaks while in Pucon then I invite you to consider my place, Pucon Kayak Hostel.
If you prefer to come to Pucon first then I would be happy to help you arrange your logistics from Pucon to Futa: bus to Puerto Montt, booking Navimag ferry, and bus to shuttle or bus to Futa. You might even be able to hook up with a kayak group heading south at that time of year.
We have over 50 kayaks both play and freestyle with new selections. This place is designed by kayakers for kayakers.
Pucon Kayak Hostel