cheapest shipping for ebay sellers can be found by comparing different shipping carriers and services. USPS is often the most affordable option for small packages, especially when using First-Class Mail for lighter items and Priority Mail for heavier shipments. eBay offers discounted shipping labels through its partnership with USPS, which helps sellers save on shipping costs. For larger items or expedited shipping, UPS and FedEx may offer competitive rates, particularly for ground shipping. eBay’s Global Shipping Program (GSP) also helps sellers ship internationally with ease, offering a simple way to send products to international buyers while handling customs and international fees.