Rising oil prices tied to escalating tensions involving Iran are rippling through South Korea’s aviation sector, pushing up airfares and tightening access to Jeju Island, where flights serve as both a tourism channel and a critical part of daily life.
South Korea, which imports nearly all of its energy, is particularly exposed to global fuel price swings. As jet fuel costs climb, airlines are raising surcharges and adjusting capacity to offset losses, with the effects most visible on short domestic routes.
Beginning next month, major carriers including Korean Air, Asiana Airlines and Jeju Air plan to increase domestic fuel surcharges to about $23 per one-way ticket, up from roughly $5. While that figure may appear modest compared with long-haul international travel, the increase represents a more than fourfold jump and now accounts for a significant share of total fares on short routes where base ticket prices remain relatively low.
On the heavily trafficked Seoul–Jeju corridor, where one-way fares have typically hovered around $80 to $90, the surcharge alone is becoming a meaningful portion of the ticket price. For travelers during the early May holiday period, a family of three could face roughly $630 in round-trip airfare, underscoring how quickly costs have escalated.
The impact extends beyond discretionary travel. Jeju relies heavily on air links for everyday mobility, including medical visits, work travel and family connections. As fares rise, the cost of routine access is increasing alongside leisure travel, amplifying the economic effect on the island.
At the same time, supply is tightening. Airlines facing higher fuel expenses are adjusting operations, with total seat availability declining even as flight counts remain broadly stable. Industry officials say some routes are becoming increasingly difficult to sustain, particularly where pricing flexibility is limited.
The combination of higher prices and reduced capacity is raising concerns that Jeju’s tourism recovery could lose momentum. Visitor numbers have been rising this year, but the latest cost pressures risk slowing demand in a market that had relied on relatively low-cost air travel.
what is unfolding in South Korea shows how quickly higher oil prices can feed into airfares and begin to affect basic mobility, with places like Jeju—where flying is not optional—feeling the pressure first.
