Here's what their fleet looks like. Singapore Airlines and its regional affiliate SilkAir, operate flights to 99 destinations in 34 countries. The frequent flyer program is KrisFlyer.
There is also a second Frequent Flyer tier, much harder to attain. Priority Passenger Service (PPS) is for passengers who have accumulated, S$25,000 worth of 'PPS Value' within a year. PPS Value is acquired while flying Singapore Airlines Suites, First Class or Business Class on Singapore Airlines, or Business Class on SilkAir. The PPS is divided into the PPS Club, Solitaire PPS Club and the Solitaire PPS Club Life.