DELTA Airlines has revised their codeshare operation with Alaska Airlines. DELTA has removed its “DL” code on some AS operating routes starting 6/5/14:
SEA - LAS
SEA - LAX
SEA - SAN
SEA - SFO
SEA - SJC
SEA - YVR
7/1/14
SEA - ANC
SEA - IAH
12/20/14
SEA - PHX
