My husband and I would like to perform Hajj this year inshAllah.
The prices have risen considerably. He has a pakistani passport and can apply from there where it is considerably cheaper, unfortunately I cannot because I am not a Pakistani passport holder. My question is that if I travel with a company from the UK and he travels from Pakistan with a separate company, will my Hajj be accepted even though he is not physically by my side but is performing the Hajj rituals with another group?

Yes. Your hajj is accepted.