DL4986 New YorkJFK · 19:00 MilwaukeeMKE · 20:50
DL4986 by Delta Air Lines flies from New York (JFK) to Milwaukee (MKE) for the Sun, Sep 13 departure.
departs JFK · on schedule
board checked 45m ago · checking again in 45s
⚖ DL4986 typically leaves −6 and lands −20. The air wins minutes back.Where the minutes go
last 7 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The last 30 days
arrival outcome per operationmedian arrival −20 min · 0 cancelled · 15 operations tracked
The route today
live boardsWeather lens
Weather-conditioned outlook for this flight right now
Measured, 90-day sampleDriven mainly by JFK (New York), currently flying IFR (instrument). 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.
How DL4986 actually runs
Pro Flight Search has tracked every published board update for DL4986 across the JFK and MKE boards: schedule changes, gate pushes and actual clocks. Usually lands ~17 min early. Based on 14 confirmed landings · 11/14 within 15 min of schedule. Pushes back late but makes up time in the air.
The verdict above is that record speaking, so it reflects how DL4986 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: N915XJ, N917XJ, N916XJ, N491PX.
Board clocks recorded as JFK and MKE published them.
Planning around DL4986? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — DL4986 New York to Milwaukee on-time performance, measured from the JFK and MKE airport boards.
https://proflightsearch.com/flight/DL4986
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