New interline partnership opens 20 destinations across Nigeria, West and Central Africa to Etihad guests Lagos, Nigeria – Etihad Airways, the national airline of the United Arab Emirates, and Air Peace, Nigeria;s largest airline, have signed an interline agreement that connects the two carriers; networks, opening 20 destinations across Nigeria, West and Central Africa to Etihad;s guests. Under the agreement, Etihad guests will be able to travel on a single ticket beyond Lagos and Accra onto Air Peace;s extensive network. That includes major Nigerian cities such as Abuja, Port Harcourt, Kano, Enugu, Benin City, Owerri, Warri and Asaba,