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Yes, the flight number was Oceanic 815 as in the original timeline.

But the date of the flight is apparently different; we know this because the date stamped on Claire's ultrasound -- which she had the same day the plane landed -- is 10/24/04, while the date of the original flight was 9/24/04.

    • In addition the the producers have confirmed the 10/09/04 date was a typo (apparently) and was supposed to be 9/24/04