Flight OddsDL4023 PDX → SEA
Delta Air Lines · Portland, OR to Seattle, WA · 31 flights observed, 2026-05-07 to 2026-06-06 · 129 mi
DL4023 covers more than one route in the data window — the stats below are for PDX → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
87%
Median delay
-9 min
90th percentile
+18 min
Cancellation rate
0%
How often is DL4023 on time?
Across 31 flights on PDX → SEA from 2026-05-07 to 2026-06-06, DL4023 arrived within 15 minutes of schedule 87% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +18 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 | 27 | 87% |
| 16-30 min | 2 | 6% |
| 31-60 min | 0 | 0% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 2 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-05 | 25 | 88% | -2 min |
| 2026-06 | 6 | 83% | +14 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 50% |
| Tue | 4 | 75% |
| Wed | 4 | 75% |
| Thu | 5 | 100% |
| Fri | 5 | 100% |
| Sat | 5 | 100% |
| Sun | 4 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…