AA621 San JuanSJU · 14:22 PhiladelphiaPHL · 22:35
AA621 by American Airlines flies from San Juan (SJU) to Philadelphia (PHL) for the Wed, Sep 16 departure.
departs SJU · on schedule
board checked 3m ago · checking again in 45s
⚖ AA621 typically leaves +18 and lands −18. 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 −18 min · 0 cancelled · 8 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at SJU and PHL 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 San Juan to Philadelphia flights today
same route · American AirlinesIf AA621 is cancelled, these are the other American Airlines nonstop flights from San Juan to Philadelphia on the same day, with scheduled departure times in SJU local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How AA621 actually runs
Pro Flight Search has tracked every published board update for AA621 across the SJU and PHL boards: schedule changes, gate pushes and actual clocks. Usually lands ~18 min early. Based on 8 confirmed landings · 6/8 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 AA621 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: N905AU, N121AN, N902AA, N446AN.
Board clocks recorded as SJU and PHL published them.
Planning around AA621? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — AA621 San Juan to Philadelphia on-time performance, measured from the SJU and PHL airport boards.
https://proflightsearch.com/flight/AA621
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