If you travel east in a linear path without stopping, you will eventually end up in the same spot from where you departed because the earth is a globe, not flat.
You know you can do this on a flat earth, right?
Here's my route sketched out on a FE map.
Depart Los Angeles, sail east to Japan, past the Phillipines, thru the Straits of Malacca, across the Indian Ocean to the Horn of Africa, up the Suez Canal, across the Mediterranean, thru the Strait of Gibraltar, across the Atlantic, thru the Panama Canal, back to LA.