The difference between sea freight and air freight is still particularly obvious. How to choose the optimal transport method for your goods depends mainly on the size of your cargo, the requirements for time efficiency and your budget for logistics costs. 

Air freight is the fastest option, and you can usually receive your goods within 5-15 days, regardless of the country and the remote area. For goods under 100kgs, air freight is not only the fastest but also the cheapest way, since ocean freight has lots of charges items that make the overall cost more expensive than air freight. But for larger goods over 100kgs, ocean freight is normally cheaper than air freight, you would have to consider when is your deadline to receive the goods and decide whether it is necessary to spend that much money with air freight. 

Ocean freight is the shipping method of choice for 90% of international shipments, as it is the most economical way for goods over 1cbm, the transit time could be around 25-45 days to different countries. In order to save shipping cost, you would better prepare the purchase in advance, choose a reliable supplier to complete the order within the promised delivery date.