Flight OddsDL4023 SEA → PDX
Delta Air Lines · Seattle, WA to Portland, OR · 93 flights observed, 2026-01-05 to 2026-06-06 · 129 mi
DL4023 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
94%
Median delay
-15 min
90th percentile
+6 min
Cancellation rate
0%
How often is DL4023 on time?
Across 93 flights on SEA → PDX from 2026-01-05 to 2026-06-06, DL4023 arrived within 15 minutes of schedule 94% of the time. The median arrival delay was -15 min, and the worst 10% of flights arrived +6 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 | 87 | 94% |
| 16-30 min | 2 | 2% |
| 31-60 min | 0 | 0% |
| 61-120 min | 3 | 3% |
| 2+ hrs | 1 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 27 | 93% | -2 min |
| 2026-02 | 11 | 82% | -3 min |
| 2026-04 | 18 | 100% | -15 min |
| 2026-05 | 31 | 94% | -10 min |
| 2026-06 | 6 | 100% | -18 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 14 | 93% |
| Tue | 14 | 100% |
| Wed | 14 | 100% |
| Thu | 13 | 85% |
| Fri | 13 | 85% |
| Sat | 13 | 92% |
| Sun | 12 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…