Flash Sideways
A flash sideways is not a flashback, flash-forward or an alternate timeline. It posits what would have happened if Oceanic flight 815 didn't crash on the island but instead landed in Los Angeles.
The Substitute
Flash Sideways gallery | "The Substitute" episode guide
Flash Sideways Differences
1. Helen comes outside, and we see that Locke and Helen are together.
Helen and Locke live together and are going to be married, but in the second season episode "Lockdown," Helen broke up with Locke and refused to marry him.
Read related recaps:
Lockdown
Watch related episodes:
Lockdown
2. Ben is a teacher at a high school.
Ben teaches European history at a high school, but he moved to the island when he was a young boy and lived his whole life there.
Read related recap:
The Man Behind the Curtain
Watch related episode:
The Man Behind the Curtain
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