Flight OddsDL5597 PIT → BOS
Delta Air Lines · Pittsburgh, PA to Boston, MA · 135 flights observed, 2025-07-01 to 2025-12-19 · 496 mi
DL5597 covers more than one route in the data window — the stats below are for PIT → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
85%
Median delay
-12 min
90th percentile
+25 min
Cancellation rate
0%
How often is DL5597 on time?
Across 135 flights on PIT → BOS from 2025-07-01 to 2025-12-19, DL5597 arrived within 15 minutes of schedule 85% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +25 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 115 | 85% |
| 16-30 min | 8 | 6% |
| 31-60 min | 3 | 2% |
| 61-120 min | 7 | 5% |
| 2+ hrs | 2 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 90% | -1 min |
| 2025-08 | 31 | 87% | +2 min |
| 2025-09 | 10 | 80% | -1 min |
| 2025-10 | 21 | 71% | +12 min |
| 2025-11 | 26 | 96% | -14 min |
| 2025-12 | 17 | 76% | +2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 21 | 95% |
| Tue | 22 | 86% |
| Wed | 22 | 91% |
| Thu | 20 | 55% |
| Fri | 19 | 84% |
| Sat | 13 | 92% |
| Sun | 18 | 94% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…