Web Check-in
Review check-in guidance and open the official airline page.
Singapore Airlines
Online check-in opens 48 hours before departure and closes 1.5 hours before departure (1 hour on the app for non-US flights); some routes still require airport counter check-in due to local regulations.
We summarize Singapore Airlines's own published web check-in. Airlines change fees, allowances and document rules without notice, so always confirm the latest details on the official page linked below before you travel.
Use the "Official airline link" button on this page — it goes directly to Singapore Airlines's own web check-in page, which is the definitive source.