DL3878 MedfordMFR SeattleSEA · 14:00
DL3878 by Delta Air Lines flies from Medford (MFR) to Seattle (SEA) for the Sun, Sep 6 departure.
arrival expected at SEA · on schedule
The route today
live boardsWhen it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
How DL3878 actually runs
Pro Flight Search has tracked every published board update for DL3878 across the MFR and SEA boards: schedule changes, gate pushes and actual clocks. Aggregated across MFR and SEA. Scores update when new signals arrive.
The verdict above is that record speaking, so it reflects how DL3878 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as MFR and SEA published them.
Planning around DL3878? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — DL3878 Medford to Seattle on-time performance, measured from the MFR and SEA airport boards.
https://proflightsearch.com/flight/DL3878
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