Probably across state, but not across country ... so she might have difficulties teleporting all the way from U.S. to England. :p That's what I imagined anyways. Now in the beginning, no ... and I guess I should've explained this, but while she knew how to use and practice her power, she couldn't push it to the limit like she can now. Think of it like she knows how to use martial arts, but she still needs to train muscle memory in order for it to be used well; Same for her power... so three years ago, that was not the case, but she can teleport that far now.

- and oops, lol. Typo.