You can travel with dj stent in place but it should be smooth and you should avoid a jerky journey otherwise you may have blood in urine. It is advisable to get the stent removed by the person who has placed it as he knows the entire course of your treatment and the indication why it was put. Removing a dj stent is no big deal for any urologist but wether it has to be removed needs deliberation.

You can remove it from anywhere but better to  remove from the previous Operated surgeon For long distance travelling with dj stent usually associated with bleeding in urine Personally I advised my patient to avoid