As we have learned, a woman who is about to pray Shaĥarit must le-khatĥila follow the same laws as a man, and from the break of dawn she may not become involved in her work or do any traveling until she prays. The Sages say (Berakhot 14a), “Anyone who prays and then goes on his way, God grants him what he desires.”
Nevertheless, one may perform small tasks or make short trips before prayer. There is an opinion that if the trip lasts less than 72 minutes, it is allowed before prayer. If the entire trip is for the sake of prayer, for example, traveling to pray at the Kotel, one may go, even if the travel time will be more than 72 minutes (Responsa Or Le-Tziyon 2:7:6; Peninei Halakha: Prayer 12:5).
Before dawn, one may begin a large project or embark on a long trip, for since the time of Shaĥarit has not yet arrived, she is not considered one who puts her needs before prayer. She must be strict in saying Birkhot Ha-shaĥar before that, because the time to recite them is immediately upon waking up. Since she started her work or departed on her journey before the time to pray began, she may continue even after dawn, on condition that she prays before the time to pray lapses (SA 89:7; Peninei Halakha: Prayer 12:2).
It is proper that a woman who does not normally pray Shaĥarit strictly refrain from occupying herself with work or departing on her way before reciting Birkhot Ha-shaĥar and Birkhot Ha-Torah.