Flight OddsSEA → PHL Delta Air Lines
Delta Air Lines · Seattle, WA to Philadelphia, PA · 51 flights, 2026-05-07 to 2026-06-30 · aggregated across 1 flight number
On-time arrival
84%
Median delay
-11 min
90th percentile
+30 min
Cancellation rate
0%
How on-time is Delta Air Lines from SEA to PHL?
Across every Delta Air Lines flight number on SEA → PHL (51 flights, 2026-05-07 to 2026-06-30), 84% arrived within 15 minutes of schedule. Median arrival delay -11 min; the worst 10% ran +30 min or later. 0% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 43 | 84% |
| 16-30 min | 3 | 6% |
| 31-60 min | 4 | 8% |
| 61-120 min | 1 | 2% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-05 | 25 | 72% | +3 min |
| 2026-06 | 26 | 96% | -11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 75% |
| Tue | 7 | 100% |
| Wed | 7 | 71% |
| Thu | 8 | 75% |
| Fri | 8 | 88% |
| Sat | 5 | 80% |
| Sun | 8 | 100% |
DL flight numbers on SEA → PHL
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…