If the vendor offers overnight shipping at an additional charge, you may have to go to his profile and find it as another separate listing you have to purchase. For example if you are buying 1g of weed there would be a listing for the 1g of weed you would have to purchase, then click the vendors name and scroll down to see what other items he has listed, and he may have a listing up for "express shipping with tracking" or something similar. Good luck with your shopping and i hope that helps. Cheers.