DL ground handles China Airlines, Hawaiian, and Sun Country.
American is also on Concourse A (along with Frontier and ATA) and their relocation provided the ability for AS
to completely occupy Concourse C along their gates on D. Delta was in Concourse B, so their gates there are now vacant.
I think the Port was counting on Southwest taking some, but they've actually cut back service in SEA
. Plus, I think the high landing fees and terminal rents have really caused WN
to reconsider their future operations at SEA
Incidentally, jetBlue moved from Councourse B (an HP
gate) to the North Satellite terminal to be ramp handled by UA