Flight OddsDL489 SEA → RDU
Delta Air Lines · Seattle, WA to Raleigh/Durham, NC · 360 flights observed, 2025-07-01 to 2026-06-30 · 2,354 mi
On-time arrival
78%
Median delay
-4 min
90th percentile
+34 min
Cancellation rate
1%
How often is DL489 on time?
Across 360 flights on SEA → RDU from 2025-07-01 to 2026-06-30, DL489 arrived within 15 minutes of schedule 78% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +34 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 | 275 | 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 | 26 | 69% | +11 min |
| 2025-12 | 28 | 79% | +1 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 | 46 | 83% |
| Sun | 51 | 71% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…