1st. we are not a travel agency, so i'll give you a pointer. You will need to search and read the rules on your own.

2. flights from SJC/SFO/OAK are usually in the 250 range during fare sales
3. Flights between islands are cheap now...sub 100 rt
4. how much is a flight from BOS to SFO/SJC/OAK


Do the math. Probably close to 600-700.