- Main article: Oceanic Flight 815
The planned flight path of Oceanic 815 was from Sydney, Australia to Los Angeles, California. The major international airports of those cities are Sydney's Kingsford Smith International Airport (SYD/YSSY) and Los Angeles International Airport (LAX/KLAX).
SAYID: Two days ago we take off from Sydney. We fly along the same north east route every commercial airliner bound for Los Angeles does.
PILOT: 6 hours in. Our radio went out, no one could see us. We turned back to land in Fiji, by the time we hit turbulence we were 1000 miles off course. They're looking for us in the wrong place.
Based upon actual flight paths of airliners from SYD to LAX, six hours of flight time would have placed Oceanic 815 northeast of Fiji.
CINDY: Before the crash, the pilot said we'd lost communication; we were turning back. We were flying for two hours in the wrong direction. They don't know where to look.
The new route is just slightly north of the reciprocal of the planned flight path, which is consistent with the pilot's statement that Oceanic 815 turned back to land in Fiji. After two hours of flight, the crash location would be about 350 kilometers to the west of Samoa, a point very near Wallis Island.
The fake wreckage of Oceanic 815 was placed off the coast of Indonesia, and the cover story of the Oceanic Six says they washed up on the Indonesian island of Membata. This is nearly seven thousand kilometres away from the closest part of Oceanic 815's flight path, and in a completely different ocean. The fact that nobody questions this (especially the reporters in "There's No Place Like Home, Part 1") suggests that it is a geographic mistake on the writers' part rather than an intentional mystery.
- The Island's location theory.