PDX-ICN on KE makes more sense than DL. KE would benefit from AS feed from PDX. AS can no longer feed DL at PDX, correct?
And PDX is not a DL hub.
JV would allow KE to get more creative with North American destinations, I would think. Now that 789 is coming in to service.
BOS comes straight to mind.
JV also allows you to fine tune your offerings as DL/AF have done with BOS-CDG.
BOS-ICN could start off as 789 but then require something bigger seasonally (either upgauge to KE 77W/A380 or 2nd seasonal DL service with a A359)
Airlines flown: A3, AA, AC, AF, AM, BA, B6, CA, CO, CX, DL, EA, EL, IB, LH, MI, MQ, NH, NW, NZ, OU, PE, QF, S4, SQ, TP, UA, US, VS, WE, WN
2019: CX BOS-HKG, WE HKG-HKT, CA HKT-PEK-EWR, B6 EWR-BOS