Lutti, If your OPT expires in a couple of months then you will be out of status. Had your OPT expired on 60 days before October 1st, then you would have been OK. Because, your H-1B is valid ONLY from 1st October. Therefore, if you go to embassy in KTM they wouldn't give you the visa right a way. They will tell you taht you have no business to go until; October because you simply CANNOT WORK LEGALLY. On what basis you will work? You can ask that question to yourself. You don't have valid OPT and h-1B. Going to Canada is not going to sole your problem, because it is still American embassy. The choice is yours. It's my logical view point. You are free to ignore my suggestion.