I would like to dedicate this thread to the younger FTers who see the airline would in terms of OW, *A, and ST.

Things weren't always so black and white, and they still aren't. Many of today's friends were yesterday's foes, and vv.

Moving on, here's my list:

-AA and SQ used to be tight
-subsequently, DL bumped AA out of the picture, and its relationship with SQ persisted well into the *A era
-NW and CO were virtually the same airline for around 6 years
-AS continues to be in bed with both AA and DL
-people often complain about OW not taking on a Chinese airline; the thing is; CX is already partnered with both CA (*A) and MU (ST), which keeps its members happy; what's more, CA holds a large chunk of their shares
-BR plays ball with both AA and CO
-MH was getting tight with ST until recently, but surprised us all by joining OW