Iberia Airlines operates out of Terminal 5 at London Heathrow Airport (LHR). Iberia Airlines LHR Terminal operates out of Terminal 5 at London Heathrow Airport (LHR). As a Oneworld alliance partner of Iberia, British Airways shares this terminal, facilitating easy connections for travelers heading to and from North America, Europe, and other locations. Travelers on Iberia are guaranteed a comfortable experience at Terminal 5, which is renowned for its state-of-the-art amenities, effective services, and roomy lounges. Many facilities, such as fast-track security for elite travelers, dining options, and retail, are conveniently accessible from the terminal. As such, it serves as a major hub for long-haul flights from Iberia to Europe.