DL4125 SMF → SEA

Delta Air Lines · Sacramento, CA to Seattle, WA · 156 flights observed, 2025-07-01 to 2026-06-30 · 605 mi

DL4125 covers more than one route in the data window — the stats below are for SMF → SEA, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
91%
Median delay
-12 min
90th percentile
+9 min
Cancellation rate
0%

How often is DL4125 on time?

Across 156 flights on SMF → SEA from 2025-07-01 to 2026-06-30, DL4125 arrived within 15 minutes of schedule 91% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +9 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time14291%
16-30 min21%
31-60 min96%
61-120 min21%
2+ hrs11%

Performance by month

MonthFlightsOn-timeAvg delay
2025-073184%-6 min
2025-081090%-2 min
2026-032483%+15 min
2026-043090%-5 min
2026-053197%-11 min
2026-0630100%-12 min

Performance by day of week

DayFlightsOn-time
Mon2291%
Tue2391%
Wed2286%
Thu2291%
Fri2295%
Sat2295%
Sun2387%

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