DL4125 SacramentoSMF · 13:00 SeattleSEA · 15:11
DL4125 by Delta Air Lines flies from Sacramento (SMF) to Seattle (SEA) for the Wed, Oct 21 departure.
departs SMF · 8 min late
Where the minutes go
last 3 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at SMF and SEA are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Sacramento to Seattle flights today
same route · Delta Air LinesIf DL4125 is cancelled, these are the other Delta Air Lines nonstop flights from Sacramento to Seattle on the same day, with scheduled departure times in SMF local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How DL4125 actually runs
Pro Flight Search has tracked every published board update for DL4125 across the SMF and SEA boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 3 completed legs so far: departed +11 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how DL4125 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: N299SY.
Board clocks recorded as SMF and SEA published them.
Planning around DL4125? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — DL4125 Sacramento to Seattle on-time performance, measured from the SMF and SEA airport boards.
https://proflightsearch.com/flight/DL4125
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