Flight OddsDL5851 BOS → BWI
Delta Air Lines · Boston, MA to Baltimore, MD · 132 flights observed, 2025-07-01 to 2026-06-30 · 369 mi
DL5851 covers more than one route in the data window — the stats below are for BOS → BWI, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
60%
Median delay
-5 min
90th percentile
+121 min
Cancellation rate
6%
How often is DL5851 on time?
Across 132 flights on BOS → BWI from 2025-07-01 to 2026-06-30, DL5851 arrived within 15 minutes of schedule 60% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +121 min or later. 6% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 75 | 60% |
| 16-30 min | 4 | 3% |
| 31-60 min | 17 | 14% |
| 61-120 min | 15 | 12% |
| 2+ hrs | 13 | 10% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 24 | 54% | +46 min |
| 2025-08 | 24 | 83% | -1 min |
| 2025-09 | 24 | 50% | +55 min |
| 2025-10 | 26 | 62% | +44 min |
| 2025-11 | 6 | 50% | +51 min |
| 2026-06 | 20 | 55% | +23 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 20 | 60% |
| Tue | 22 | 68% |
| Wed | 19 | 79% |
| Thu | 21 | 52% |
| Fri | 21 | 57% |
| Sat | No data | — |
| Sun | 21 | 48% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…