How does metastasis spread from the pancreas if somebody has pancreatic cancer?

Lymph nodes or blood: Cancer cells can grow outward & attach to nearby organs or major blood vessels next to the pancreas, they can travel via lymphatics to lymph nodes, or can travel by blood stream to the liver or lungs more commonly.

Early: Unfortunately, it appears that pancreatic cancer spreads to other organs very early in its development before the cancer is even detectable. We believe that the cancer cells become migratory and get into the local lymphatic and vascular channels, as well as moving along nerve fibers. The cancer cells then have to "set up shop" in a new place, the most common being lymph nodes, liver, lung, etc.

Blood stream & nodes: Pancreatic cancer spreads through the blood stream and the lymph nodes. This is thought to happen early in the development of pancreatic cancer, often before the patient even knows he/she has pancreatic cancer. That is part of what makes pancreatic cancer so difficult to treat.