Originally Posted by TheReverend
I assumed the first because of whats to come and he because he was narrating to Varys as that scene was shown.
Me too, but then I re-watched the scene.
Littlefinger's "crest" normally looks like this in the series:
Because of the distance, it's hard to be 100% sure, but it looks like the same crest appears on the middle sail of the ship that Sansa was watching. If so, that's at least his ship.
Whether he's actually on board or not, I've got to think that she assumes he is.