DL668
Delta Air Lines flight 668 — New York (JFK) to San Francisco (SFO)
On time
79%
Avg delay
~69 min
Cancelled
1.6%
DL668 is fairly reliable, though delays happen. About 79% of departures arrive on time. When delays happen, the most common cause is airline operations.
Monthly breakdown
| Month | On time | Cancelled | Avg delay |
|---|---|---|---|
| 2026-07 | 87% | 0.0% | 69 min |
| 2026-07 | 50% | 3.2% | 94 min |
| 2026-06 | 75% | 6.7% | 44 min |
| 2026-06 | 71% | 6.7% | 41 min |
| 2026-05 | 68% | 0.0% | 46 min |
| 2026-05 | 84% | 0.0% | 85 min |
| 2026-04 | 57% | 0.0% | 97 min |
| 2026-04 | 75% | 0.0% | 142 min |
| 2026-03 | 80% | 3.2% | 21 min |
| 2026-03 | 83% | 3.2% | 65 min |
| 2026-02 | 65% | 7.1% | 45 min |
| 2026-02 | 85% | 7.1% | 31 min |
Top delay cause
airline operations
Based on 1,845 tracked departures
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Get a free briefingData last updated October 2026. Source: Bureau of Transportation Statistics.