ALL: I’m flying Korean Air (Prestige Class with presumably faster deplaning) from Vietnam to Incheon; connecting to Delta for the flight home to the USA. Delta sold these codeshare flights together on one ticket/itinerary, and the layover is 90 minutes. (1) Change of terminals? (2) Sufficient connection time OR ought I change my Delta flight to a later one that affords a 3+ hour layover?