Alaska Airlines and its regional sister air line, Horizon, have formed a new partnership with Korean Air to share flights and to grant mileage credit to frequent fliers on their mileage programs.
The new codeshare agreements mean that travelers on Korean Air to West Coast gateways can book Alaska and Horizon flights onward to other destinations under a Korean Air flight number.
The mileage program alliance means that Korean Air flight miles can be credited to Alaska Mileage Plan accounts. The alliance also allows members of each airline’s mileage plans to get free flights or upgrades on each other’s flights.
The agreement begins Friday with mileage earning and redemption set to start Sept. 3.
Korean Air offers four weekly flights from Sea-Tac to Seoul.