Flight OddsDL3818 SEA → PDX
Delta Air Lines · Seattle, WA to Portland, OR · 256 flights observed, 2025-07-01 to 2026-06-30 · 129 mi
DL3818 covers more than one route in the data window — the stats below are for SEA → PDX, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
92%
Median delay
-10 min
90th percentile
+10 min
Cancellation rate
0%
How often is DL3818 on time?
Across 256 flights on SEA → PDX from 2025-07-01 to 2026-06-30, DL3818 arrived within 15 minutes of schedule 92% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +10 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 | 234 | 92% |
| 16-30 min | 14 | 5% |
| 31-60 min | 2 | 1% |
| 61-120 min | 5 | 2% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 87% | -5 min |
| 2025-08 | 31 | 100% | -14 min |
| 2025-09 | 30 | 97% | -9 min |
| 2025-10 | 31 | 90% | -5 min |
| 2025-11 | 30 | 93% | -9 min |
| 2025-12 | 19 | 84% | 0 min |
| 2026-02 | 17 | 94% | -3 min |
| 2026-03 | 30 | 87% | -4 min |
| 2026-04 | 12 | 92% | +1 min |
| 2026-06 | 24 | 92% | -8 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 36 | 86% |
| Tue | 37 | 95% |
| Wed | 36 | 94% |
| Thu | 37 | 89% |
| Fri | 36 | 94% |
| Sat | 36 | 92% |
| Sun | 37 | 92% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…