What is the ruling on a girl traveling with her mother to spend a holiday at a distance of 80 kilometers or more, without a mahram, in the absence of the father?

Scholars differ on the issue of a woman traveling without a mahram. The majority of scholars prohibit it absolutely, while some permit it for the obligatory Hajj and Umrah, or for a journey of obedience, or when safety is assured. The more cautious approach is to avoid such travel unless a mahram is present.