DL4639 AppletonATW · 06:54 ChicagoORD · 07:17
DL4639 by Delta Air Lines flies from Appleton (ATW) to Chicago (ORD).
scheduled from ATW
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 boardsWhen it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
How DL4639 actually runs
Pro Flight Search has tracked every published board update for DL4639 across the ATW and ORD boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 3 completed legs so far: left heavily delayed (~57 min) but landed noticeably late (~33 min). Not enough to call it.
The verdict above is that record speaking, so it reflects how DL4639 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: N929EV, N454SW, N904EV, N918SW.
Board clocks recorded as ATW and ORD published them.
Planning around DL4639? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — DL4639 Appleton to Chicago on-time performance, measured from the ATW and ORD airport boards.
https://proflightsearch.com/flight/DL4639
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