Amina Inloes, Amina Inloes is originally from the US and has a PhD in Islamic Studies from the University of Exeter on Shi'a hadith. She is the program leader for the MA Islamic Studies program at the... Answered 11 months ago

In Shi'i fiqh, there is no problem with a woman travelling without a mahram.

In the Sunni schools of thought, travelling without a mahram is generally considered impermissible but sometimes allowed in some situations these days. So if she is looking for an answer in accordance with one of the Sunni schools of thought, she should consult someone knowledgeable about that specific school of thought.