The country of the Philistines - the rich low grain-growing plain along the seacoast of Judah - was always a land of plenty compared with the highlands of Palestine. Moreover, if food failed there, it was easily imported by sea from the neighboring Egypt.
Related Commentaries of 2 Kings 8:2
2 Kings 8:2
2 And the woman arose, and did after the saying of the man of God: and she went with her household, and sojourned in the land of the Philistines seven years.