I hope to get Jordan's autograph as well. I am a huge fan of his and his transcendence of the game. I look up to his talent and attitude toward the game and the fans. Thanks, Jack

Best bet is go to a practice round at a tournament he's playing.  He's very accessible, but is totally swamped.  Waiting after a putting session is the best bet.  Sending things in the mail I think is a lost cause.  He's inundated with business and hardly ever uses email.  Plus, seeing these guys in person is a treat you can't get on T.V.  Here's a shot I got of him signing a ball as I walked next to him at the Waste Management Open after his practice round to the putting green.  He's a great kid.  Huge future.  May end up being the best ever.  

Try Jordan's website and and look for contact information , I have done this for my youngest to  Zach and J. Rose and they both responded with  autographed pictures.

A lot of guys don't do flags unless there  at the course because they are worried about adults taking them and putting them on      E bay .

I would recommend a tournament practice round or the "contact" section of his website. We were lucky enough to meet Jordan at last year's Deutsche Bank Pro Am. He took time to sign in between holes and was very personable. Best of luck! 

i was able to get his at a practice round.. 

Wait until about this time next year, then you won't have to fight any crowds. You'll just be able to walk right up to him, 'hey, aren't you Jordan Spieth'?

I was lucky enough to have him sign my flag at the 2014 Sony Open.  The only reason that happened was I knew one of the Titleist Staff working the event.  We had met at the previous years Sony, and we were just talking about my flag.  He asked who else I was waiting for.  I told him Jordan, he grabbed the flag from me, walked up to him on the putting green.  And Jordan signed it, and waved.  Just another reason Titleist is the best in my opinion!  Hope you get the chance to get his autograph!

Best of luck,

Brent

I agree with other comments.  Flag would have to be signed in person, but signed photo could be obtained through website unless you relly have someone on an inside track.