British Airways OSL Terminal is based out of Oslo Airport’s Terminal 3. (OSL). The primary international terminal at OSL, Terminal 3, provides a variety of facilities and services for visitors. British Airways passengers benefit from quick and easy check-in processes, cozy lounges, and easy access to the terminal’s shops and eateries. Furthermore, Terminal 3 offers plenty of accommodations for travelers with special requirements, guaranteeing a comfortable and easy journey for everybody. British Airways clients traveling via Terminal 3 should anticipate a smooth experience whether they are arriving at Oslo Airport or departing from it.