Booking with Korean Air 9 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Seoul. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, the most affordable month to book a Korean Air flight from London Heathrow Airport to Seoul in February, with an average price of £739. Conversely, traveling with Korean Air from London Heathrow Airport to Seoul in July will be the most expensive, with an average cost of £841. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.
The most Korean Air flights from LHR to SEL are scheduled on a Monday (1 on average). You will have fewer Korean Air flight options on Monday, which is when the least amount of flights are scheduled (1 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).
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