Flight OddsSEA → RDU Delta Air Lines
Delta Air Lines · Seattle, WA to Raleigh/Durham, NC · 364 flights, 2025-07-01 to 2026-06-30 · aggregated across 2 flight numbers
On-time arrival
78%
Median delay
-5 min
90th percentile
+33 min
Cancellation rate
1%
How on-time is Delta Air Lines from SEA to RDU?
Across every Delta Air Lines flight number on SEA → RDU (364 flights, 2025-07-01 to 2026-06-30), 78% arrived within 15 minutes of schedule. Median arrival delay -5 min; the worst 10% ran +33 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 279 | 78% |
| 16-30 min | 40 | 11% |
| 31-60 min | 19 | 5% |
| 61-120 min | 13 | 4% |
| 2+ hrs | 7 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 71% | +9 min |
| 2025-08 | 31 | 81% | -4 min |
| 2025-09 | 30 | 80% | -1 min |
| 2025-10 | 31 | 81% | +2 min |
| 2025-11 | 28 | 71% | +9 min |
| 2025-12 | 30 | 80% | 0 min |
| 2026-01 | 29 | 86% | -1 min |
| 2026-02 | 27 | 78% | +2 min |
| 2026-03 | 30 | 73% | +11 min |
| 2026-04 | 30 | 70% | +15 min |
| 2026-05 | 31 | 81% | +0 min |
| 2026-06 | 30 | 83% | +6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 50 | 72% |
| Tue | 53 | 83% |
| Wed | 52 | 83% |
| Thu | 51 | 82% |
| Fri | 51 | 71% |
| Sat | 50 | 84% |
| Sun | 51 | 71% |
DL flight numbers on SEA → RDU
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…