Flight OddsDL4017 SEA → PSC
Delta Air Lines · Seattle, WA to Pasco/Kennewick/Richland, WA · 365 flights observed, 2025-07-01 to 2026-06-30 · 172 mi
On-time arrival
86%
Median delay
-9 min
90th percentile
+25 min
Cancellation rate
0%
How often is DL4017 on time?
Across 365 flights on SEA → PSC from 2025-07-01 to 2026-06-30, DL4017 arrived within 15 minutes of schedule 86% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +25 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 311 | 86% |
| 16-30 min | 19 | 5% |
| 31-60 min | 16 | 4% |
| 61-120 min | 10 | 3% |
| 2+ hrs | 7 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 90% | +5 min |
| 2025-08 | 31 | 90% | -11 min |
| 2025-09 | 30 | 90% | -8 min |
| 2025-10 | 31 | 94% | -11 min |
| 2025-11 | 30 | 87% | +16 min |
| 2025-12 | 31 | 87% | -7 min |
| 2026-01 | 31 | 81% | +49 min |
| 2026-02 | 27 | 85% | +25 min |
| 2026-03 | 30 | 73% | +12 min |
| 2026-04 | 30 | 73% | +22 min |
| 2026-05 | 31 | 84% | +1 min |
| 2026-06 | 30 | 93% | -6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 52 | 87% |
| Tue | 53 | 94% |
| Wed | 52 | 83% |
| Thu | 51 | 78% |
| Fri | 51 | 82% |
| Sat | 52 | 90% |
| Sun | 52 | 85% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…