AA4357 BostonBOS · 06:00 New YorkJFK · 07:24
AA4357 by American Airlines flies from Boston (BOS) to New York (JFK) for the Sun, Sep 20 departure.
arrived at JFK · 4 min late
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 −4 min · 0 cancelled · 7 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 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 Boston to New York flights today
same route · American AirlinesIf AA4357 is cancelled, these are the other American Airlines nonstop flights from Boston to New York on the same day, with scheduled departure times in BOS local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How AA4357 actually runs
Pro Flight Search has tracked every published board update for AA4357 across the BOS and JFK boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 7 confirmed landings · 7/7 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 AA4357 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as BOS and JFK published them.
Planning around AA4357? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search — AA4357 Boston to New York on-time performance, measured from the BOS and JFK airport boards.
https://proflightsearch.com/flight/AA4357
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