British Airways is a founding member of the oneworld alliance, meaning its primary partners include American Airlines, Alaska Airlines, Cathay Pacific, Finnair, Iberia, Japan Airlines, Malaysia Airlines, Qantas, Qatar Airways, Royal Air Maroc, Royal Jordanian, and SriLankan Airlines. Beyond the alliance, BA has significant "joint business" agreements with Iberia, American Airlines, and Aer Lingus (all part of the IAG family), allowing for seamless booking and points earning. They also maintain codeshare and frequent flyer partnerships with non-alliance carriers such as China Southern, LATAM, and Vueling. In 2026, BA’s partnership with Qatar Airways remains one of its strongest, essentially treating the two airlines' networks as one for travelers connecting through London or Doha.