9K8121 Charlotte AmalieSTT San JuanSJU
9K8121 by Cape Air flies from Charlotte Amalie (STT) to San Juan (SJU).
scheduled from STT
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at STT and SJU 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 Charlotte Amalie to San Juan flights today
same route · Cape AirIf 9K8121 is cancelled, these are the other Cape Air nonstop flights from Charlotte Amalie to San Juan on the same day, with scheduled departure times in STT local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How 9K8121 actually runs
Pro Flight Search has tracked every published board update for 9K8121 across the STT and SJU boards: schedule changes, gate pushes and actual clocks. Combined risk score: 33.0/100. Based on airport operations, weather, and cached board history at STT and SJU.
The verdict above is that record speaking, so it reflects how 9K8121 operates rather than what the timetable promises. Numbers refresh as new flights operate.
Planning around 9K8121? 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 — 9K8121 Charlotte Amalie to San Juan on-time performance, measured from the STT and SJU airport boards.
https://proflightsearch.com/flight/9K8121
.