I just looked up the arrival times of my flight for the last 2 weeks and it's inconsistent with arrival as late as 11pm. In that case only taxi is available right (to LRM)? I see the #5 bus stops at 11pm.
Also is there a route map for the bus?
-#5 will get you closest to people's square, but the precise stop changes from time to time; it also stops in ljz; you don't want to get off there
-#2 is the most idiot proof, but if you take it, you'll definitely need a taxi/Didi on the back end
-the night bus runs hourly, and stops in many places; yes, it will save you 50 clams, but I can't really recommend it