Airporting?

I travel! I go to Boston! Flight at 12:17 Thursday, returning 5:34pm following Friday the 14th. The Bloomington shuttle can serve me, but involves catching it at 8:40am Thursday for a 10:30 airport arrival, and waiting till 6:40pm on return, to get into town at 8:20pm. I figured I'd ask if anyone could help shave my waiting times, especially on departure.