Direct flights
from Seoul (ICN)
to Singapore (SIN)

Weekly schedule for flights between Incheon Intl (Seoul, South Korea) and Changi Intl (Singapore, Singapore) operated by 1 airlines.
79 weekly flights operate on this route flying 2,890mi in 6h40min.
Expect $280 in average for a one-way ticket with the cheapest option at $0.