Flight OddsDL5638 BOS → PIT
Delta Air Lines · Boston, MA to Pittsburgh, PA · 160 flights observed, 2025-07-05 to 2025-12-19 · 496 mi
DL5638 covers more than one route in the data window — the stats below are for BOS → PIT, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
79%
Median delay
-9 min
90th percentile
+33 min
Cancellation rate
4%
How often is DL5638 on time?
Across 160 flights on BOS → PIT from 2025-07-05 to 2025-12-19, DL5638 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +33 min or later. 4% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 121 | 79% |
| 16-30 min | 14 | 9% |
| 31-60 min | 10 | 7% |
| 61-120 min | 6 | 4% |
| 2+ hrs | 2 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 25 | 64% | +11 min |
| 2025-08 | 31 | 97% | -12 min |
| 2025-09 | 28 | 75% | +9 min |
| 2025-10 | 27 | 74% | +2 min |
| 2025-11 | 23 | 74% | +6 min |
| 2025-12 | 19 | 89% | +3 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 22 | 73% |
| Tue | 22 | 86% |
| Wed | 20 | 80% |
| Thu | 19 | 68% |
| Fri | 23 | 74% |
| Sat | 24 | 92% |
| Sun | 23 | 78% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…