Booking with Jeju Air 39 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seoul to Jeju City. 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 Jeju Air flight from Seoul to Jeju City in July, with an average price of ฿1,113. Conversely, traveling with Jeju Air from Seoul to Jeju City in April will be the most expensive, with an average cost of ฿1,956. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.
The most Jeju Air flights from SEL to CJU are scheduled on a Monday (21 on average). You will have fewer Jeju Air flight options on Tuesday, which is when the least amount of flights are scheduled (18 on average).
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