TMZ.com said Vonn was taken from a hospital where she had been treated since suffering a season-ending knee injury, to a nearby airport where she boarded the golfer's plane for a flight to the United States.
Vonn will have surgery to repair the damage suffered this week in a crash-landing during the Alpine World Championships in Schladming.
The rescue mission stoked reports that Vonn and Woods have become romantically linked.
They slipped away last month for a quiet getaway in the Caribbean, the New York Daily News said. Woods also paid a low-key visit to Vonn in Austria.
Woods was not aboard Vonn's Friday flight. He was working in California this week at a PGA tournament at Pebble Beach.
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COLLEGE PARK, Md., June 19 (UPI) --University of Maryland scientists say they've developed an environmentally friendly battery that uses wood as its backbone.