DL5399 New YorkJFK · 13:59 PortlandPWM · 14:13
DL5399 by Delta Air Lines flies from New York (JFK) to Portland (PWM) for the Tue, Sep 8 departure.
departs JFK · on schedule
board checked 358m ago · checking again in 45s
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 −7 min · 0 cancelled · 14 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at JFK and PWM 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 New York to Portland flights today
same route · Delta Air LinesIf DL5399 is cancelled, this is the other Delta Air Lines nonstop flight from New York to Portland 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 DL5399 actually runs
Pro Flight Search has tracked every published board update for DL5399 across the JFK and PWM boards: schedule changes, gate pushes and actual clocks. Usually lands ~7 min early. Based on 13 confirmed landings · 12/13 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how DL5399 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: N490PX, N491PX, N917XJ, N827SK.
Board clocks recorded as JFK and PWM published them.
Planning around DL5399? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — DL5399 New York to Portland on-time performance, measured from the JFK and PWM airport boards.
https://proflightsearch.com/flight/DL5399
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