Flight OddsDL1439 TPA → BOS
Delta Air Lines · Tampa, FL to Boston, MA · 300 flights observed, 2025-07-01 to 2026-06-30 · 1,185 mi
DL1439 covers more than one route in the data window — the stats below are for TPA → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
70%
Median delay
-4 min
90th percentile
+96 min
Cancellation rate
3%
How often is DL1439 on time?
Across 300 flights on TPA → BOS from 2025-07-01 to 2026-06-30, DL1439 arrived within 15 minutes of schedule 70% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +96 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 204 | 70% |
| 16-30 min | 20 | 7% |
| 31-60 min | 20 | 7% |
| 61-120 min | 29 | 10% |
| 2+ hrs | 18 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 26 | 31% | +66 min |
| 2025-08 | 22 | 82% | +1 min |
| 2025-09 | 18 | 56% | +23 min |
| 2025-10 | 26 | 50% | +39 min |
| 2025-11 | 24 | 75% | +9 min |
| 2025-12 | 15 | 67% | +19 min |
| 2026-01 | 20 | 90% | -4 min |
| 2026-02 | 22 | 77% | +13 min |
| 2026-03 | 29 | 66% | +27 min |
| 2026-04 | 30 | 87% | +4 min |
| 2026-05 | 30 | 83% | +3 min |
| 2026-06 | 29 | 76% | +13 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 44 | 64% |
| Tue | 45 | 71% |
| Wed | 46 | 85% |
| Thu | 47 | 66% |
| Fri | 45 | 69% |
| Sat | 21 | 81% |
| Sun | 43 | 60% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…