Main Article Theories about
Main Discussion
 Theories may be removed if ... 
  1. Stated as questions or possibilities (avoid question marks, "Maybe", "I think", etc).
  2. More appropriate for another article.
  3. Illogical or previously disproven.
  4. Proven by canon source, and moved to main article.
  5. Speculative and lacking any evidence to support arguments.
  6. Responding to another theory (use discussion page instead).
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See the Lostpedia theory policy for more details.

  • She was in the fuselage during the crash and she's been in the background the whole time
    • She did not tell the survivors about the plane being off course before they headed out in Pilot, Part 1 because she was unconcious or she didn't know.
    • She went with Jack after the split because she wants to get back to Sam.
  • She was in the Tail Section and was kidnapped on Day 12 by the Others.
    • When the time flashes happened, she ended up in 1977 with the Others, which is how Charles Widmore knew to lure Sam Thomas into trying to find her in 2004, thereby "discovering" the fake Oceanic 815 wreckage.
  • Because Sam saw visions of her, it's likely she died in the crash (The visions people have had are mostly dead people).
  • Sonya survived the crash and was with the Tail section, but was one of the first three "to go". Libby told Ana Lucia that Donald was the fourth to go, so Sonya was #1, #2, or #3.