Latest news, Jul 31, 2026: I just fixed a bug that prevented some notifications about code-shared regional flights from getting sent on-time, for example with Endeavor flights sold through Delta. Thanks as always for your issue reports!

AIC4174, SFO to CCU, departing 11:00 AM PDT, Aug 1

Turbulence forecast map for AIC4174, SFO to CCU

Report an issue

(Forecast data last collected at 10:00 AM PDT on Aug 1, 2026.)

  1. Takeoff from SFO at 11:00 AM PDT, Aug 1.
  2. 11:01 AM PDT: Light turbulence likely for the next 3 minutes.
  3. 11:04 AM PDT: Calm skies for the next 36 minutes.
  4. 11:40 AM PDT: Light turbulence likely for the next 22 minutes.
  5. 12:02 PM PDT: Calm skies for the next 50 minutes.
  6. 12:52 PM PDT: Light turbulence likely for the next 20 minutes.
  7. 1:12 PM PDT: Calm skies for the next 48 minutes.
  8. 2:00 PM PDT: Light turbulence likely for the next 6 minutes.
  9. 2:06 PM PDT: Calm skies for the next 14 minutes.
  10. 2:20 PM PDT: Light turbulence likely for the next 17 minutes.
  11. 2:37 PM PDT: Calm skies for the next 25 minutes.
  12. 3:02 PM PDT: Light turbulence likely for the next 43 minutes.
  13. 3:45 PM PDT: Calm skies for the next 1 hour and 28 minutes.
  14. 5:13 PM PDT: Light turbulence likely for the next 1 hour and 42 minutes.
  15. 6:55 PM PDT: Calm skies for the next 31 minutes.
  16. 7:26 PM PDT: Light turbulence likely for the next 1 minute.
  17. 7:27 PM PDT: Calm skies for the next 17 minutes.
  18. 7:44 PM PDT: Light turbulence likely for the next 18 minutes.
  19. 8:02 PM PDT: Calm skies for the next 1 hour and 30 minutes.
  20. 9:32 PM PDT: Light turbulence likely for the next 1 hour and 18 minutes.
  21. 10:50 PM PDT: Calm skies for the next 1 hour and 10 minutes.
  22. 12:00 AM PDT: Light turbulence likely for the next 26 minutes.
  23. 12:26 AM PDT: Moderate turbulence likely for the next 1 minute.
  24. 12:27 AM PDT: Light turbulence likely for the next 1 hour and 10 minutes.
  25. 1:37 AM PDT: Calm skies for the next 19 minutes.
  26. 1:56 AM PDT: Light turbulence likely for the next 16 minutes.
  27. 2:12 AM PDT: Calm skies for the rest of the flight.
  28. Landing at CCU at 2:59 AM PDT.

Get notified about a future AIC4174 flight First Class

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.

šŸ“£ To stay informed about updates to BumpySkies, subscribe to the free newsletter:

You can also browse past newsletter issues.

BumpySkies is free, and stays online thanks to its subscribers.

If you find this service helpful, please consider subscribing to BumpySkies First Class. For $5 a month you'll help keep BumpySkies runningā€”and you can set up turbulence-forecast notifications for your own flights.

For best results, try it shortly before departure.

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