If the pilgrim doing ‘Umrah in Ramadan comes from a far land such as Najd or elsewhere, then he is a traveller and he may break the fast on the road, whether he is coming from Riyadh or al-Qaseem or Haa’il or Madeenah. He may break the fast on the road and in Makkah. But if he has decided to stay for more than four days, then when he reaches Makkah, to be on the safe side he should fast and it is better to fast, because the majority of scholars are of the view that if he has made a firm decision to stay for more than four days, then he must offer the prayers in full and not break the fast. 

But if he has decided to stay for two or three or four days and no more, then he may break the fast or he may fast, he may shorten the four-rak’ah prayers to two rak’ahs, or he may offer the prayers in full with the people. If he is alone, he should pray with the congregation, but if there are other people with him, he has the choice: if he wishes he may pray two rak’ahs with the people who are with him, or if they wish they may pray four rak’ahs with the people in congregation. If their stay is more than four days, then they should fast and offer the prayers in full, according to the majority of scholars. End quote. 

Shaykh ‘Abd al-‘Azeez ibn Baaz (may Allah have mercy on him).