Scott asserted himself in the closing mix with a 6-under 65 that featured seven birdies against a lone bogey.
The No. 12 player in the world has struggled on the greens this year, switching putters ahead of January's anchoring ban, but poured in plenty Sunday, including a 15-footer for par at No. 17 that kept him tied for the lead.
''I left myself with a little bit of work to do there on 17, but anytime you want to put yourself in a position to win, you've got to make some putts,'' Scott told the Associated Press.
Unfortunately for the former Masters champion, Jones made another birdie, on the 16th hole, to leave Scott one shot short, in a tie for second with Jordan Spieth.
And so Scott's winless 2015 campaign continues. The 35-year-old has won at least one event worldwide every year since 2001. Only two times in the last decade has Scott failed to win a PGA Tour event, and in both of those years he won legs of the Aussie Grand Slam, taking the Open in 2009 and the Talisker Masters in 2012.
Scott's last win of any kind came at the 2014 Crowne Plaza Invitational, where he defeated Jason Dufner in a playoff.