Opening Weekend | Six Flags Darien Lake Event has ended 585-599-4641 Visit website Visit Facebook Visit Twitter Six Flags Darien Lake Theme Park 9993 Alleghany Road (Rt. 77)Darien Center, NY 14040 Six Flags Darien Lake Theme Park 9993 Alleghany Road (Rt. 77)Darien Center, NY 14040 Get Directions Opening Weekend at Six Flags Darien Lake is Memorial Day Weekend! Click here to learn more!