UAL1048, PHL to SFO, departing 6:38 AM EDT, Sep 18

(Forecast data last collected: 2025-09-18T11:00:00 UTC)

Map of continental US with illustrated flight path and turbulence forecast (described in text below)
  1. Takeoff from PHL at 6:38 AM EDT, Sep 18.
  2. 6:39 AM EDT: Calm skies for the next 45 minutes.
  3. 7:24 AM EDT: Light turbulence likely for the next 24 minutes.
  4. 7:48 AM EDT: Calm skies for the next 18 minutes.
  5. 8:06 AM EDT: Light turbulence likely for the next 7 minutes.
  6. 8:13 AM EDT: Calm skies for the next 14 minutes.
  7. 8:27 AM EDT: Light turbulence likely for the next 17 minutes.
  8. 8:44 AM EDT: Moderate turbulence likely for the next 4 minutes.
  9. 8:48 AM EDT: Light turbulence likely for the next 11 minutes.
  10. 8:59 AM EDT: Moderate turbulence likely for the next 2 minutes.
  11. 9:01 AM EDT: Light turbulence likely for the next 3 minutes.
  12. 9:04 AM EDT: Moderate turbulence likely for the next 4 minutes.
  13. 9:08 AM EDT: Light turbulence likely for the next 19 minutes.
  14. 9:27 AM EDT: Moderate turbulence likely for the next 2 minutes.
  15. 9:29 AM EDT: Light turbulence likely for the next 50 minutes.
  16. 10:19 AM EDT: Calm skies for the next 14 minutes.
  17. 10:33 AM EDT: Light turbulence likely for the next 25 minutes.
  18. 10:58 AM EDT: Moderate turbulence likely for the next 2 minutes.
  19. 11:00 AM EDT: Light turbulence likely for the next 46 minutes.
  20. 11:46 AM EDT: Calm skies for the rest of the flight.
  21. Landing at SFO at 11:54 AM EDT.

Remember: turbulence is sometimes scary, but always harmless. BumpySkies provides this forecast to help make any turbulence during your flight less unpleasantly surprising. Turbulence you do encounter poses no danger at all to your flight's safety.

Please see our FAQ for more information, including links to other resources for nervous fliers.

Want to discuss your flight with other BumpySkies users, or chat with other fliers about the stresses and joys of travel by air? Visit our new discussion forum!

The forum also contains news about the BumpySkies service, and a place to give feedback and suggestions about this service.

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. Thank you! ❤️

For best practical results on real flights, try it shortly before departure (or, indeed, after takeoff).

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