American Airlines and Starlux Launch Codeshare Partnership
American Airlines and Taiwan's Starlux Airlines have upgraded their partnership from a basic interline agreement to a codeshare.

American Airlines and Starlux Airlines have launched a codeshare agreement, expanding their partnership just over a year after initiating a basic interline deal. The move allows each carrier to place its flight code on routes operated by the other, significantly broadening the network options they can offer to passengers.
This new agreement represents a higher level of cooperation than the previous interline arrangement. An interline agreement permits combined ticketing and baggage transfers between airlines. A codeshare allows one airline to market and sell seats on flights actually operated by its partner, presenting a more seamless travel option to customers.
Initial Codeshare Routes
The initial phase of the codeshare focuses on transpacific and domestic U.S. Routes. American Airlines will place its code on Starlux flights operating between Taipei (TPE) and four U.S. Gateways. In the opposite direction, Starlux will place its code on American's domestic flights departing from two major hubs.
Notably, Starlux's route from Taipei to Phoenix is not included in the initial codeshare for American placing its code on transpacific flights. The partnership is not a joint venture, which is a deeper alliance level that involves coordinated scheduling and pricing.
The Loyalty Reciprocity Question
A major unanswered question is whether the partnership will extend to reciprocal frequent flyer benefits. The source, One Mile at a Time, notes that while such reciprocity is hoped for, it is not guaranteed by a codeshare agreement. Starlux already has a partnership with Alaska Airlines that includes loyalty reciprocity, and American partners closely with Alaska, suggesting a potential pathway.
However, the politics of airline alliances add complexity. Starlux has expressed a desire to join the oneworld alliance, of which American is a founding member. The source reports that Cathay Pacific, another oneworld member, holds veto rights and is "reportedly blocking" Starlux's entry into the alliance. This dynamic could influence the depth of the partnership between American and Starlux.
Competitive Dynamics in the Pacific
American Airlines has a limited network in Asia but maintains a strong presence through its joint venture with Japan Airlines (JAL), which includes revenue sharing. This gives American an incentive to route Asia traffic through Japan. Partnering with Starlux directly to Taiwan provides an alternative. The source speculates that American may see competitive value in offering customers more choice across the Pacific, even on flights it does not operate itself.
The report concludes by observing that American has reciprocal loyalty agreements with nearly all its non-oneworld full-service partners. The sole current exception is Philippine Airlines, but that is expected to change when that carrier joins oneworld. For now, travelers can book combined itineraries on American and Starlux, but must wait to see if earning and redeeming miles across the carriers becomes a reality.





