I had a FUE and I don't think it's a good idea at all. Travel for the first 10 days and leave at least 7 remaining days for recovery. No matter how good and clean the surgery, you will have up to 10.000 (+/-) relatively deep incisions on your head, tons of local anesthetics, painkillers and other drugs. You will feel uncomfortable on the sun for the first couple of days. You'll be all drowsy from the drugs and shock of the operation for days. You will likely have some swelling on the days 3-5, even with antihistamines, and you might be lying for hours with ice on your forehead. Believe me, it is not a good time to travel, especially not overseas. Of course it might be easier if you are having a smaller intervention, but I would still strongly dissuade you from doing that.