British Airways OSL Terminal is based at Oslo Airport’s Terminal 3 (OSL). Passengers on British Airways can enjoy a smooth experience at this terminal, which offers a variety of amenities such duty-free stores, restaurants, lounges, and shops. Terminal 3 has everything passengers need, including places to relax before their trip, get a quick bite to eat, and shops for last-minute things. British Airways travelers have two options for checking in: they can use the handy online check-in services or visit special counters within the terminal. With its effective amenities and services, Terminal 3 at OSL guarantees British Airways travelers a hassle-free, enjoyable check-in and boarding experience.