At the moment, there are two airlines flying to Seoul. Go through the results to find the right flights for you – you can adjust the filters to see find even more flights to Seoul.
The most popular airlines offering flights to Seoul are Qatar Airways & British Airways. Qatar Airways is the most popular one, but that doesn’t mean their flights will be the cheapest. If you can't find a flight time that suits you, why not look at flying out from a different airport?
The distance between George Best Belfast City Airport to Seoul is 8819 km. Normally, it takes about 18 hrs 55 mins to fly, and you can definitely expect the journey to be at least 14 hrs 15 mins. You can see the various flight times in the results.
You can also search by month, which will reveal the cheapest time of the week to fly.