The cuts, ranging from four to 10 US dollars, will take effect Tuesday and apply to flights from Singapore to Southeast Asian countries, Australia, New Zealand and other East Asian destinations, SIA said in a statement.
SIA is also cutting the surcharges on flights from Singapore to South Asia, Egypt, Saudi Arabia, flights between Dubai and Istanbul, the Dubai-Moscow route and the Bangkok-Tokyo service, it said.
The surcharges on long-haul flights, including between Singapore and the United States and Canada, were unchanged.
In a separate statement, SIA's regional wing SilkAir also announced cuts of four to 10 US dollars in its fuel surcharges for all flights starting Tuesday.
SilkAir flies to popular holiday destinations including those in Southeast Asia, China and India.
Crude oil prices have eased 27 percent from record highs of above 147 dollars reached in July on growing worries about a US-led global economic slowdown.