DL1877
Delta Air Lines flight 1877 — New York (JFK) to San Juan (SJU)
On time
85%
Avg delay
~58 min
Cancelled
0.3%
DL1877 is a reliable flight. About 85% of departures arrive on time. When delays happen, the most common cause is air traffic / NAS.
Monthly breakdown
| Month | On time | Cancelled | Avg delay |
|---|---|---|---|
| 2026-05 | 100% | 0.0% | 0 min |
| 2026-05 | 100% | 0.0% | 0 min |
| 2026-04 | 100% | 0.0% | 0 min |
| 2026-04 | 90% | 0.0% | 18 min |
| 2026-03 | 25% | 0.0% | 28 min |
| 2026-03 | 75% | 0.0% | 57 min |
| 2026-02 | 67% | 0.0% | 29 min |
| 2026-02 | 67% | 0.0% | 17 min |
| 2026-01 | 100% | 0.0% | 0 min |
| 2026-01 | 100% | 0.0% | 0 min |
| 2025-12 | 79% | 0.0% | 65 min |
| 2025-12 | 89% | 0.0% | 79 min |
Top delay cause
air traffic / NAS
Based on 1,828 tracked departures
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Get a free briefingData last updated October 2026. Source: Bureau of Transportation Statistics.