AA4639 BostonBOS · 17:53 New YorkLGA · 19:19
AA4639 by American Airlines flies from Boston (BOS) to New York (LGA).
scheduled from BOS
Where the minutes go
last 5 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 +39 min · 0 cancelled · 5 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at BOS and LGA 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 Boston to New York flights today
same route · American AirlinesIf AA4639 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 AA4639 actually runs
Pro Flight Search has tracked every published board update for AA4639 across the BOS and LGA boards: schedule changes, gate pushes and actual clocks. Usually lands ~39 min late. Based on 5 confirmed landings · 0/5 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how AA4639 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 LGA published them.
Planning around AA4639? 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 — AA4639 Boston to New York on-time performance, measured from the BOS and LGA airport boards.
https://proflightsearch.com/flight/AA4639
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