Flight OddsRDU → SEA Delta Air Lines
Delta Air Lines · Raleigh/Durham, NC to Seattle, WA · 364 flights, 2025-07-01 to 2026-06-30 · aggregated across 2 flight numbers
On-time arrival
85%
Median delay
-6 min
90th percentile
+27 min
Cancellation rate
1%
How on-time is Delta Air Lines from RDU to SEA?
Across every Delta Air Lines flight number on RDU → SEA (364 flights, 2025-07-01 to 2026-06-30), 85% arrived within 15 minutes of schedule. Median arrival delay -6 min; the worst 10% ran +27 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 300 | 85% |
| 16-30 min | 22 | 6% |
| 31-60 min | 19 | 5% |
| 61-120 min | 8 | 2% |
| 2+ hrs | 6 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 94% | -16 min |
| 2025-08 | 31 | 97% | -12 min |
| 2025-09 | 30 | 97% | -21 min |
| 2025-10 | 31 | 84% | -2 min |
| 2025-11 | 29 | 93% | -2 min |
| 2025-12 | 29 | 62% | +15 min |
| 2026-01 | 29 | 76% | +9 min |
| 2026-02 | 26 | 73% | +16 min |
| 2026-03 | 29 | 76% | +12 min |
| 2026-04 | 30 | 90% | -2 min |
| 2026-05 | 30 | 87% | +2 min |
| 2026-06 | 30 | 83% | -2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 51 | 75% |
| Tue | 53 | 87% |
| Wed | 51 | 82% |
| Thu | 50 | 90% |
| Fri | 51 | 86% |
| Sat | 50 | 90% |
| Sun | 49 | 82% |
DL flight numbers on RDU → SEA
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…