fugitive — a person who is fleeing, from prosecution, intolerable circumstances, etc.; a runaway: a fugitive from justice; a fugitive from a dictatorial regime.
migrate — to go from one country, region, or place to another. Synonyms: move, resettle, relocate. Antonyms: remain.
wanderer — a Covenanter persecuted by Charles II and James II, especially one who fled home to follow rebellious Presbyterian ministers who refused to accept episcopacy.
gypsy — a member of a nomadic, Caucasoid people of generally swarthy complexion, who migrated originally from India, settling in various parts of Asia, Europe, and, most recently, North America.
itinerant — traveling from place to place, especially on a circuit, as a minister, judge, or sales representative; itinerating; journeying.
nomad — a member of a people or tribe that has no permanent abode but moves about from place to place, usually seasonally and often following a traditional route or circuit according to the state of the pasturage or food supply.