Flight OddsDL5731 PIT → BOS
Delta Air Lines · Pittsburgh, PA to Boston, MA · 163 flights observed, 2025-07-07 to 2026-06-30 · 496 mi
DL5731 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
71%
Median delay
-8 min
90th percentile
+67 min
Cancellation rate
4%
How often is DL5731 on time?
Across 163 flights on PIT → BOS from 2025-07-07 to 2026-06-30, DL5731 arrived within 15 minutes of schedule 71% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +67 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 | 111 | 71% |
| 16-30 min | 10 | 6% |
| 31-60 min | 18 | 11% |
| 61-120 min | 15 | 10% |
| 2+ hrs | 3 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 22 | 59% | +15 min |
| 2025-08 | 20 | 85% | 0 min |
| 2025-09 | 15 | 40% | +24 min |
| 2025-10 | 23 | 48% | +38 min |
| 2025-11 | 2 | 100% | -27 min |
| 2026-04 | 15 | 80% | +1 min |
| 2026-05 | 31 | 97% | -13 min |
| 2026-06 | 29 | 69% | +12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 24 | 71% |
| Tue | 25 | 72% |
| Wed | 22 | 68% |
| Thu | 23 | 61% |
| Fri | 24 | 71% |
| Sat | 28 | 82% |
| Sun | 11 | 64% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…