As of early 2026, the oneworld alliance consists of 13 full member airlines, providing a massive global network for frequent flyers. The founding members include American Airlines, British Airways, Cathay Pacific, and Qantas. Other major carriers in the alliance are Alaska Airlines, Finnair, Iberia, Japan Airlines, Malaysia Airlines, Qatar Airways, Royal Air Maroc, Royal Jordanian, and SriLankan Airlines. In recent years, Fiji Airways has been a "oneworld connect" partner, though in 2026, the alliance is finalizing the full integration of Oman Air as its 14th member. For a traveler, being part of this alliance means you can earn and redeem miles across all these carriers and enjoy reciprocal "Emerald" or "Sapphire" status perks, such as access to over 600 premium airport lounges worldwide. This "interconnectedness" is a key strategy for oneworld to compete with Star Alliance and SkyTeam, offering seamless transfers between these high-quality global brands.