Direct flights
from Taipei (TSA)
to Seoul (GMP)

Weekly schedule for flights between Taipei Songshan (Taipei, Taiwan, Province of China) and Gimpo Intl (Seoul, South Korea) operated by 3 airlines.
5 weekly flights operate on this route flying 918mi in 2h20min.
Expect $579 in average for a one-way ticket with the cheapest option at $157 on Jan 01.