Originally Posted by
AA_EXP09
Highly variable given ERP charges, when you go, and traffic.
But as an order of magnitude typically from CBD to Airport will come out to be roughly $20-$30 SGD (or approximately $15-$25 USD), unless you get stuck in a Chrysler and that will be more like $30-$40 SGD.
For OP, to catch 23:55 flight, its more likely to be base fare +25% ... so about $20-22 ( + $3 surcharge for picking up in CBD). Shouldn't be ERP at that time of night. So all up around $25.