For Economy class flights, the cheapest month to fly this route is July. The most expensive months are December and October.
The most Korean Air flights from SIN to SEL are scheduled on a Monday (3 on average). You will have fewer Korean Air flight options on Monday, which is when the least amount of flights are scheduled (3 on average).
In terms of precipitation, rainfall in Seoul ranges from 27.0 - 253.0 inches per month. July is typically the wettest month, when rainfall can reach 253.0 mm. December is typically the driest time to visit Seoul when rainfall is around 27.0 mm.
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 25.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).
The best time to book a flight to Seoul with Korean Air is 69 days before departure. On average, fares are higher if you book on the same day as departure.
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