Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Pensacola to Surabaya as you normally would.
PNS stands for Pensacola Airport, while SUB stands for Surabaya Juanda Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.