Currently, January is the cheapest month in which you can book a Business Class flight from USA to Seoul (average of $1,695). Flying from USA to Seoul in August is currently the most expensive (average of $3,588). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
You can book Business Class flights to Seoul with Delta and Korean Air. These airlines are the most popular providers with the premium cabin at this moment.
In terms of precipitation, rainfall in Seoul ranges from 1.1 - 10.0 inches per month. July is typically the wettest month, when rainfall can reach 10.0 in. December is typically the driest time to visit Seoul when rainfall is around 1.1 in.
If weather is an important factor for your trip to Seoul, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).