Latest news, Oct 26, 2026: Please enjoy the latest BumpySkies newsletter, reflecting on the past year of working on this project.
TWY221: 2 legs
TWY221, KOA to SJC
No forecast yet
I don't yet know the flight plan for this leg of TWY221, so I can't give you an accurate forecast right now. Come check again within an hour or two of departure time.
Not flying to SJC?
If your upcoming flight isn't between KOA and SJC, come back and check this page within an hour or two of departure time. Airlines regularly reassign flight numbers when planning routes, and it's quite possible that TWY221 was reassigned to your flight after the previous one.
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TWY221, SJC to TEB
No forecast yet
I don't yet know the flight plan for this leg of TWY221, so I can't give you an accurate forecast right now. Come check again within an hour or two of departure time.
Not flying to TEB?
If your upcoming flight isn't between SJC and TEB, come back and check this page within an hour or two of departure time. Airlines regularly reassign flight numbers when planning routes, and it's quite possible that TWY221 was reassigned to your flight after the previous one.
Get notified when this forecast is ready First Class Report an issue
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For best results, try it shortly before departure.
(Or, see a random upcoming flight's forecast.)