How long is a flight from Portland Oregon to Seoul South Korea?

Answer 1

Flight:

San Francisco, CA (SFO) to Seoul (SEL)

Shortest Flight Duration 12 hours 10 mins

Distance:

The distance between San Francisco and Seoul, Korea is 5613 miles (9033 km).

To make a minor correction Seoul does not use airport code SEL for Seoul, namely because the original airport just outside of Seoul was Kimpo (airport designation GMP) and once air traffic increased after the Seoul Olympics, a bigger international airport was built in Incheon, South Korea which sits about 45 miles south-west of Seoul (airport designation ICN) and has been used for international use since 2001.

As for the length of flight it varies: with good tail winds I have encountered flights just under 9 hours via Asiana Airlines but when I travelled with United to cut costs it took over 11 hours (major turbulence on the United Flight whereas the Asiana flight was quite steady). So the 12 hours is slightly above average since in all my travels to Korea it's been around 10 hours.