Airline
Singapore Airlines
Singapore
- IATA
- SQ
- ICAO
- SIA
Singapore Airlines is an airline registered in Singapore. Its two-character IATA designator is SQ, which is the prefix on the flight numbers it sells, and its three-letter ICAO code is SIA.
Its main base in our dataset is Singapore Changi Airport (SIN) in Singapore.
A flight number starting with SQ is sold by Singapore Airlines, but on a codeshare it may be operated by another airline. The booking’s “operated by” line tells you which.
At a glance
- IATA designator
- SQFlight-number prefix
- ICAO code
- SIA
- Country
- Singapore
- Main airports
- SIN
- Codes checked
- 8 October 2026Hand-checked against public references