What are the terms and conditions to perform an Umrah for women?

There are two rules for women;

a.    Having a fellow traveller,

b.    Not being late.

There is no objection for women to perform an Umrah with or without their husbands. Shafi'I madhab considered, Muslim women who reach puberty can go to Hajj with trustworthy women, without a mahram, allowable (jaiz).

According to Hanafi madhab, Muslim women who go to Hajj without a mahram or husband is not considered allowable (jaiz), and Hajj is not fardh for those who has not a mahram or husband. These women can send the badal instead of performing Hajj by themselves.

It is, performing a Hajj without a mahram or husband, sahih for Hanafi madhab as well. But these people commit sin due to their travels without their mahrams or husband.

O Prophet, when you [Muslims] divorce women, divorce them for [the commencement of] their waiting period and keep count of the waiting period, and fear Allah , your Lord. Do not turn them out of their [husbands'] houses, nor should they [themselves] leave [during that period] unless they are committing a clear immorality. And those are the limits [set by] Allah . And whoever transgresses the limits of Allah has certainly wronged himself. You know not; perhaps Allah will bring about after that a [different] matter. ( Surah At-Talaq, 65/1 )

There is no difference to perform Hajj rituals for both men and women. Nevertheless, there are not any special ihram clothes for women. Women wear headscarf, pair of socks, shoes and dresses as the usual. Women only do not conceal their faces.  

Additionally, women should not raise their voices while they recite salat, talbiyah, salawat and dua. Women must not do Ramal (rapid ritual walk for men in the arrival tawaf) and run between two green light during Sa’i.

Women need to pay more attention to avoid crowds and stampedes. Furthermore, women need to be careful to pray in the separate female praying area.

During women’s special days, they can do all the rituals of Hajj except Tawaf. They can enter Masjid al-Haram but not pray in there.