DL4001 SEA → PDX

Delta Air Lines · Seattle, WA to Portland, OR · 16 flights observed, 2025-12-20 to 2026-01-04 · 129 mi

This flight is usually on time, but has a real long-delay tail — typical (median) delay is -1 min, while the worst 10% run +70 min or later.

DL4001 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
75%
Median delay
-1 min
90th percentile
+70 min
Cancellation rate
0%

How often is DL4001 on time?

Across 16 flights on SEA → PDX from 2025-12-20 to 2026-01-04, DL4001 arrived within 15 minutes of schedule 75% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +70 min or later. 0% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time1275%
16-30 min213%
31-60 min00%
61-120 min16%
2+ hrs16%

Performance by month

MonthFlightsOn-timeAvg delay
2025-121267%+28 min
2026-014100%-15 min

Performance by day of week

DayFlightsOn-time
Mon250%
Tue2100%
Wed20%
Thu2100%
Fri2100%
Sat367%
Sun3100%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…