DL4538 New YorkJFK · 13:32 WashingtonDCA
DL4538 by Delta Air Lines flies from New York (JFK) to Washington (DCA) for the Fri, Aug 21 departure.
en route from JFK to DCA
board checked 49m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 13:38 · typical taxi-out at JFK ≈ 11.2 min.
Where the minutes go
last 4 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
Weather-conditioned outlook for this flight right now
Measured, 90-day sampleDriven mainly by JFK (New York), currently flying MVFR (marginal visual). 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 New York to Washington flights today
same route · Delta Air LinesIf DL4538 is cancelled, these are the other Delta Air Lines nonstop flights from New York to Washington on the same day, with scheduled departure times in JFK local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How DL4538 actually runs
Pro Flight Search has tracked every published board update for DL4538 across the JFK and DCA boards: schedule changes, gate pushes and actual clocks. Usually departs ~6 min late. Based on 4 confirmed departures · 4/4 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how DL4538 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: N207JQ, N208JQ, N239JQ, N227JQ.
Board clocks recorded as JFK and DCA published them.
Planning around DL4538? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — DL4538 New York to Washington on-time performance, measured from the JFK and DCA airport boards.
https://proflightsearch.com/flight/DL4538
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