[UPDATE, Dec. 19, 2016: Alaska Airlines and Delta Air Lines as of May 1, 2017, no longer will share codes. The carriers also will cease frequent flyer program reciprocity. An interlining deal for ticketing and baggage connectivity will continue.]

Alaska Air Lines' relationship with Delta seems about over as one with American is ramping up. Alaska and AA recently made reciprocal lounge access global and have been growing their codeshare arrangement. Intriguingly, an Alaska exec recently said there would be more joint corporate sales . . .

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