He was often sent to foreign tours by the company.

Foreign : of, from, in, or characteristic of a country or language other than one's own.
Native : a person born in a specified place or associated with a place by birth, whether subsequently resident there or not.
Overseas : in or to a foreign country, especially one across the sea.
Distant : far away in space or time.
Remote : (of a place) situated far from the main centres of population; distant.

Antonym of is