UAL877, SFO to HKG, departing 12:41 AM PDT, Jul 10

Turbulence forecast map for UAL877, SFO to HKG

Report an issue

(Forecast data last collected at 12:00 AM PDT on Jul 10, 2026.)

  1. Takeoff from SFO at 12:41 AM PDT, Jul 10.
  2. 12:42 AM PDT: Light turbulence likely for the next 3 minutes.
  3. 12:45 AM PDT: Calm skies for the next 2 hours and 16 minutes.
  4. 3:01 AM PDT: Light turbulence likely for the next 36 minutes.
  5. 3:37 AM PDT: Calm skies for the next 2 hours and 25 minutes.
  6. 6:02 AM PDT: Light turbulence likely for the next 14 minutes.
  7. 6:16 AM PDT: Calm skies for the next 33 minutes.
  8. 6:49 AM PDT: Light turbulence likely for the next 30 minutes.
  9. 7:19 AM PDT: Moderate turbulence likely for the next 8 minutes.
  10. 7:27 AM PDT: Light turbulence likely for the next 2 hours and 22 minutes.
  11. 9:49 AM PDT: Calm skies for the next 1 hour and 22 minutes.
  12. 11:11 AM PDT: Light turbulence likely for the next 3 minutes.
  13. 11:14 AM PDT: Calm skies for the next 27 minutes.
  14. 11:41 AM PDT: Light turbulence likely for the next 41 minutes.
  15. 12:22 PM PDT: Calm skies for the next 12 minutes.
  16. 12:34 PM PDT: Light turbulence likely for the next 11 minutes.
  17. 12:45 PM PDT: Calm skies for the next 14 minutes.
  18. 12:59 PM PDT: Light turbulence likely for the next 59 minutes.
  19. 1:58 PM PDT: Calm skies for the rest of the flight.
  20. Landing at HKG at 2:17 PM PDT.
Nelly

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.

📣 To stay informed about updates to BumpySkies, subscribe to the free newsletter:

You can also browse past newsletter issues.

BumpySkies is a free service that depends on your donations to stay online.

If you find this service helpful, please consider supporting BumpySkies on Patreon.

For best results, try it shortly before departure.

(Or, see a random upcoming flight's forecast.)