For Express Shipping, such as DHL, UPS, FedEx, and TNT. It usually takes 3 to 5 business days from China to the USA, and it is the fastest way to ship to the US.
For Air Freight. Takes about 3-5 business days but it ships to the airport only and is cheaper than a courier service and is suitable for heavier goods.
For Sea Freight, normally takes around 16-35 days, Sea freight shipping times have several factors that would affect the time of delivery. These factors include but are not limited to customs inspection, weather, transport truck, and employment delays.