It's safe to assume that if you book on Delta's site then any routings they offer you will have interline agremeent.
Let's say you are traveling from Incheon to Atlanta on a flight with a Delta number. Would you go to the Delta desks to check-in? Maybe... is it a real Delta flight or a flight operated by Korean Air but marketed by Delta? I think getting rid of codesharing would make it much easier for travel novices.
Let's say you are traveling from Incheon to Atlanta on a flight with a Delta number. Would you go to the Delta desks to check-in? Maybe... is it a real Delta flight or a flight operated by Korean Air but marketed by Delta? I think getting rid of codesharing would make it much easier for travel novices.