I took the local train to the airport from Makkassan on Thursday. 30 minutes/B35, can't beat it. Traffic looked stopped on the expressway so I think I did well.

One new item for me, I took the MRT to Makkassan - and had my backpack and roll on bag. The MRT security guy knew the "game" well, and I put my roll on bag on the table and unzipped an empty upper pocket and that satisfied the entire "security check."