to 2009, SIA costs per available seat kilometer were just
4.6 cents. According to a 2007 International Air Transport
Association study, the costs for full-service European airlines
were 8–16 cents, for US airlines 7–8 cents, and for Asian
airlines 5–7 cents per available seat kilometer. SIA had even
lower costs than most low-cost carriers in Europe had and
the US had, which ranged from 4–8 cents and 5–6 cents,
respectively.