User blog comment:Wikiyous/If Lyfa was in SAO?/@comment-1173941-20130123200005/@comment-1173941-20130123215422

Well, Suguha didn't have a NerveGear, and got AmuSphere long after Kirito was already trapped in SAO. I don't doubt that he'd have noticed her getting a NerveGear, and may have even looked for her if he'd known she was in the game. She may not be the first person he met, seeing as finding someone in real life isn't easy ingame, but he'd of found her early, if he had known she was there. He likely wouldn't have left the starting city if he knew she was there.

This is under the assumption that Kirito and Lyfa would know of the other's existence in SAO. I'm guessing Suguha knew that Kazuto was going to play some new VRMMO, and they did live together... soo...