Originally Posted by
LoganFlyer
It's going to be a bit of a hassle connecting in BOS. If coming from YTZ, you'll need to clear immigration in terminal E and then use a bus to get over to terminal C; I wouldn't want less than 90 minutes for the connection. I assume they'll have a way to check your bag at BOS on to the B6 flight after you get it at customs so you won't have to take your bag to the B6 counter in terminal C.
For most travelers, the walking connection between C & E is pretty easy. I measured it in Google Maps, it's about 1400-1500 feet from the middle of Terminal E outside customs to the middle of Terminal C ticketing area. It's all inside except for one outside connection between the two buildings (which basically just crosses a small driveway). It's probably shorter than the walk up/down concourses at many major airports.