Reference: al-Muntaqaa min Fataawa Ibn Fowzaan – Volume 3, Page 168, Fatwa No.252
Question: Is it permissible for me to send my maid for the obligatory Hajj with a group of women travelling with a Hajj package group [company specialising in transporting the Hajj pilgrims]?
Response: It is impermissible for a woman to travel for the Hajj or other than the Hajj except with a mahram, whether she is a maid or not, for that which the Prophet said (sal-Allaahu ‘alayhi wa sallam) has said:
«It is not permissible for a woman who believes in Allaah and the Last Day to travel the distance of two days, except with a mahram», [al-Bukhaaree, volume 2, pages 35-36].
And a group of women does not constitute a mahram and, likewise, nor does the Hajj package group and this does not remove her from that which is forbidden in the mentioned ahaadeeth.