Even though the Jaredites traveled for a very long time, Noah and his family had to suffer even longer. Noah and his family remained on the ark for a record 366 days (see Gen 7:11-13; 8:14-16).
"Their mode of travel from the shores of Asia was in barges 'upon the waters,' and their motivated power was furnished by 'furious winds' (v. 5). Quite probably their route was in the Japan Current, which travels from east to west at a rate of between twelve and twenty-one miles a day, and if the Pacific is about seven thousand miles across, the 'three hundred and forty and four days' that they were upon the water would be pretty well consumed. They disembarked near the land called Desolation by the Nephites, 'it being the place of their first landing' (Alma 22:30)." (A. L. Zobell, Sr., A Book of Mormon Treasury, p. 169)