Singapore airport code: SIN (Singapore Changi Airport)
The IATA code for Singapore Changi Airport is SIN; ICAO WSSS.
Large airport in South East, Singapore with scheduled service. Below: every code the source records, the location and elevation, the Airlift lane guides serving Singapore and how to get an air freight quote through SIN.
IATA codeSINon air waybills, bookings and schedules
ICAO codeWSSSin flight plans and air-traffic control
Seaport at SingaporeSingapore (SGSIN)UN/LOCODE port page for the same place
Using SIN on air freight documents
The three-letter IATA code SIN is what goes on an air waybill, a booking and a flight schedule for Singapore Changi Airport; the four-letter ICAO code WSSS identifies the same airport in flight plans and air-traffic control and does not appear on cargo paperwork. A forwarder quotes airport-to-airport between two IATA codes unless the booking is door-to-door, so the code fixes where the rate applies.
Schedule D codes are a US-only system, so SIN has none. If SIN is your origin, the code that matters at the border is the one for your US airport of entry — every US airport page in this tool shows it where the Census list names the airport.
The IATA code for Singapore Changi Airport is SIN; ICAO WSSS. The three-letter IATA code is the one used on air waybills, bookings and schedules; the four-letter ICAO code is used in flight plans and air-traffic control. Source: OurAirports, fetched 2026-09-18.
Airport data: OurAirports, fetched 2026-09-18 — released into the public domain (ourairports.com/data). Reviewed September 2026.
Get an air freight quote from SIN
Send us the other end of the journey, the cargo, the number of pieces, the dimensions and the gross weight, and we will come back with a rate and a routing. Airlift USA books air freight on the Asia–US lanes it serves, with origin handling through its own offices in India, Bangladesh, Vietnam and Cambodia and through its partner network elsewhere; customs clearance is coordinated through our licensed broker network. Transit times we quote are typical and schedule-dependent.