Flight OddsDL1257 ATL → BWI
Delta Air Lines · Atlanta, GA to Baltimore, MD · 303 flights observed, 2025-07-01 to 2026-06-30 · 577 mi
DL1257 covers more than one route in the data window — the stats below are for ATL → BWI, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
72%
Median delay
0 min
90th percentile
+74 min
Cancellation rate
1%
How often is DL1257 on time?
Across 303 flights on ATL → BWI from 2025-07-01 to 2026-06-30, DL1257 arrived within 15 minutes of schedule 72% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +74 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 214 | 72% |
| 16-30 min | 26 | 9% |
| 31-60 min | 20 | 7% |
| 61-120 min | 25 | 8% |
| 2+ hrs | 13 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 29 | 48% | +61 min |
| 2025-08 | 31 | 71% | +19 min |
| 2025-09 | 30 | 77% | +8 min |
| 2025-10 | 21 | 86% | +1 min |
| 2025-11 | 27 | 81% | +12 min |
| 2025-12 | 28 | 82% | +5 min |
| 2026-01 | 15 | 53% | +33 min |
| 2026-02 | 9 | 78% | +5 min |
| 2026-03 | 23 | 48% | +30 min |
| 2026-04 | 26 | 96% | -2 min |
| 2026-05 | 29 | 62% | +16 min |
| 2026-06 | 30 | 77% | +12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 46 | 72% |
| Tue | 43 | 74% |
| Wed | 40 | 78% |
| Thu | 41 | 73% |
| Fri | 43 | 65% |
| Sat | 39 | 72% |
| Sun | 46 | 70% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…