How early can one check in luggage at TBIT?
So my flight to Incheon leaves TBIT at 11pm. I have to check out from my hotel around 11am, giving me 12hours wait for my flight. How early can I check in luggage in TBIT for an 11pm flight with Korean Air? Can I check my luggage in 6 hours prior or is it still the 4 to 3 hours prior?