British Airways OSL Terminal is based out of Oslo Airport’s Terminal 3. (OSL). British Airways is one of the main airlines that serves OSL and offers international flights to a number of different locations across the globe. Passengers can enjoy a variety of amenities at Terminal 3, such as duty-free stores, restaurants, lounges, and shops. British Airways passengers have the option of checking in conveniently online or at designated terminal counters. The terminal is well-appointed with amenities to guarantee travelers a seamless journey, such as spacious waiting lounges, information desks, and quick security and immigration processes. All things considered, Terminal 3 at OSL offers British Airways travelers a convenient and comfortable atmosphere.