Singapore Airlines (SQ) flight SQ504 left 15 minutes late or more on 86.2% of 29 observed departures. Average lateness was 27.1 minutes. Sample window: Nov 5, 2025 to May 7, 2026.
These are historical aggregates, not live status. A departure is late at 15 minutes past schedule.
| Month | Departures observed | Late | Average lateness |
|---|---|---|---|
| Apr 2026 | 14 | 85.7% | 21.0 min |
| May 2026 | 6 | 66.7% | 31.0 min |
Singapore Airlines (SQ) on-time performance · SIN departure delays
GET /flight returns the status of SQ504 by date, with scheduled, estimated and actual departure and arrival times.
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