Latest news, Apr 2, 2026: Due to an administrative error on my part, BumpySkies didn't receive any new weather data between March 31 and April 2, making domestic forecasts erroneously report no turbulence at all. I have fixed this, and apologize if this affected your flight.
SIA8890: 2 legs
SIA8890, BFI to HNL, departing 11:00 AM PDT, Apr 5
(Forecast data last collected at 7:00 AM PDT on Apr 5, 2026.)
Preliminary forecast. Check back within an hour or two of takeoff to see the most accurate route map and turbulence forecast for this flight.
- Takeoff from BFI at 11:00 AM PDT, Apr 5.
- 11:01 AM PDT: Light turbulence likely for the next 3 minutes.
- 11:04 AM PDT: Calm skies for the next 2 hours and 39 minutes.
- 1:43 PM PDT: Light turbulence likely for the next 1 hour and 25 minutes.
- 3:08 PM PDT: Calm skies for the next 57 minutes.
- 4:05 PM PDT: Light turbulence likely for the next 25 minutes.
- 4:30 PM PDT: Calm skies for the rest of the flight.
- Landing at HNL at 4:52 PM PDT.
Nelly says: Bumpy skies can be scary, but they're not dangerous!
See our turbulence safety page for more information, including links to other resources for nervous fliers.
SIA8890, HNL to GUM: no forecast yet
It's too early to give you a forecast. I don't yet know the flight plan for this leg of SIA8890, so I can't give you an accurate forecast right now. Come check again closer to departure time. (Note that sometimes I don't know the flight plan until minutes before boarding!)
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For best results, try it shortly before departure.
(Or, see a random upcoming flight's forecast.)