Flight OddsDelta Air Lines · Pasco/Kennewick/Richland, WA to Seattle, WA · 36 flights observed, 2026-03-08 to 2026-04-12 · 172 mi
DL4023 covers more than one route in the data window — the stats below are for PSC → SEA, the one it has flown most recently. The others are linked under “Other routes”.
How often is DL4023 on time?
Across 36 flights on PSC → SEA from 2026-03-08 to 2026-04-12, DL4023 arrived within 15 minutes of schedule 89% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +16 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 31 | 89% |
| 16-30 min | 1 | 3% |
| 31-60 min | 2 | 6% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 23 | 87% | -1 min |
| 2026-04 | 12 | 92% | -7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 100% |
| Tue | 5 | 100% |
| Wed | 5 | 100% |
| Thu | 5 | 40% |
| Fri | 4 | 100% |
| Sat | 5 | 100% |
| Sun | 6 | 83% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…