The wife of scandal-hit England rugby captain Mike Tindall is due to arrive in Dunedin on Friday, according to British media.
Controversy has surrounded Tindall since CCTV footage was uploaded to YouTube showing him getting cosy with an unidentified blonde woman at a Queenstown bar more than a week ago.
Tindall married the 30-year-old Queen's granddaughter less than two months ago in Edinburgh.
Mrs Phillips was reportedly on her way to New Zealand, via Australia, after her horse commitments wound up at the end of the weekend.
BBC sports correspondent Dan Roan mentioned her arrival on Twitter overnight.