JL4 TokyoHND · 19:35 New YorkJFK · 19:30
JL4 by Japan Airlines flies from Tokyo (HND) to New York (JFK) for the Tue, Oct 20 departure.
departs HND · on schedule
board checked 11m ago · checking again in 45s
⚖ JL4 typically leaves +7 and lands −27. 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 −27 min · 0 cancelled · 15 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at HND and JFK 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 Tokyo to New York flights today
same route · Japan AirlinesIf JL4 is cancelled, this is the other Japan Airlines nonstop flight from Tokyo to New York on the same day, with scheduled departure times in HND local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How JL4 actually runs
Pro Flight Search has tracked every published board update for JL4 across the HND and JFK boards: schedule changes, gate pushes and actual clocks. Usually lands ~27 min early. Based on 12 confirmed landings · 9/12 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 JL4 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: JA08WJ.
Board clocks recorded as HND and JFK published them.
Planning around JL4? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — JL4 Tokyo to New York on-time performance, measured from the HND and JFK airport boards.
https://proflightsearch.com/flight/JL4
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