DL1439
Delta Air Lines flight 1439 — Boston (BOS) to Tampa (TPA)
On time
70%
Avg delay
~81 min
Cancelled
1.7%
DL1439 is fairly reliable, though delays happen. About 70% of departures arrive on time. When delays happen, the most common cause is late-arriving aircraft.
Monthly breakdown
| Month | On time | Cancelled | Avg delay |
|---|---|---|---|
| 2026-07 | 67% | 3.2% | 41 min |
| 2026-07 | 52% | 3.3% | 59 min |
| 2026-06 | 77% | 0.0% | 83 min |
| 2026-06 | 77% | 0.0% | 84 min |
| 2026-05 | 90% | 3.2% | 138 min |
| 2026-05 | 83% | 3.2% | 81 min |
| 2026-04 | 87% | 0.0% | 102 min |
| 2026-04 | 87% | 0.0% | 83 min |
| 2026-03 | 79% | 3.3% | 146 min |
| 2026-03 | 66% | 3.3% | 104 min |
| 2026-02 | 68% | 8.3% | 70 min |
| 2026-02 | 77% | 8.3% | 87 min |
Top delay cause
late-arriving aircraft
Based on 1,938 tracked departures
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Get a free briefingData last updated October 2026. Source: Bureau of Transportation Statistics.