Incheon is open today. It's March 29 in Seoul, seeing how they're 14 hours ahead of Eastern Standard Time.
About the spelling of Incheon. It was originally suppose to be spelled "Inchon", but they thought it would help with prounciation, so they added an 'e' to the word "Incheon".
The Inchoen International Airport website has been updated. I'm glad to see that the maps of terminals for departurues and arrivals. I'm pleased that they got a few things rights. Air Canada is NO longer in KE's terminal and Check In counter, but they're now grouped together with other Star Alliance carriers UA, TG, LH and NH.
I'll be flying into ICN in 2 weeks, and hope that their operations are smooth.