A girl who disappeared on-board a flight to Salt Lake City may now be in California, a missing children's advocacy group said.

The Shawn Hornbeck Foundation reported on its Web site that Emily Cecilia Graeber, 15, was last seen in San Francisco on Oct. 29. She was flying from St. Louis to Salt Lake City, where she was entering a treatment center in Syracuse.

"Although only ticketed to Salt Lake City, Emily was able to remain on-board the flight to its ultimate destination in Oakland, Calif.," the foundation said in a statement issued Friday. "She is said to have befriended someone on that flight who provided her transportation to the Fisherman's Wharf area of San Francisco."

Graeber's boarding pass was scanned for the Southwest Airlines flight from St. Louis to Salt Lake City. However, she never showed up at the designated meeting point at the Salt Lake City International Airport on Oct. 29.

Although the foundation did not say where it received the information that places Graeber in the San Francisco area, it has been publicizing her description on its Web site, alostchild.com.

"Our primary objective is Emily's safety," her parents, Kenneth and Marsha Graeber, said in a statement released by the foundation.

"While there are law enforcement agencies in multiple jurisdictions investigating and working to help us, as her parents we feel the need to do all we can to help her come home. We love our daughter, and bringing her home safely is all that matters."

Syracuse police had been talking to a number of people, as well as reviewing airport surveillance tapes, in hopes of gleaning more information about Graeber's whereabouts. FBI agents in St. Louis also have been involved in the investigation.

Graeber is described as about 5 feet tall, 120 pounds, with brown hair and brown eyes. She normally wears glasses with black plastic frames. Anyone with information is asked to call Syracuse police at 801-825-4400 or the Shawn Hornbeck Foundation at 866-495-HOPE.

E-mail: bwinslow@desnews.com