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Jeju Air is a South Korean budget airline that flies passengers and cargo on domestic and international routes, and also runs hotel-related services.
Jeju Air is South Korea's biggest low-cost airline. It sells cheap seats on short flights, mostly between cities in South Korea and to nearby places like Japan, China, and Southeast Asia. Instead of chasing business travelers with fancy lounges and flat beds, it packs more seats onto each plane, flies them often, and turns them around fast so the aircraft spends less time parked and more time earning money.
The core money machine is simple: passengers pay for tickets, and the airline keeps costs low by flying a single aircraft type (the Boeing 737), using secondary airports where fees are cheaper, and selling extras like checked bags and seat selection. Cargo on the same planes adds a small but useful stream. A separate hotel and related-services business rounds things out, though flying is the main event. Passengers pick Jeju Air because it is usually cheaper than full-service carriers like Korean Air and Asiana Airlines on routes where a short hop is all they need. The budget-airline model is wonderful in good times and brutal in bad ones. Fixed costs like planes, staff, and airport slots don't shrink when demand falls, so a shock can hit profits hard. The COVID-19 pandemic was a severe test, and the airline had to lean on cost cuts and domestic travel to survive. More recently, the December 2024 crash of a Jeju Air flight in Muan, South Korea, killed 179 people and became one of the country's deadliest aviation disasters — a tragedy that brought intense scrutiny, safety concerns, and reputational damage to the brand.
When the airline makes money, a lot of it goes back into keeping the fleet flying and growing the route network. Low-cost carriers are a scale game: more planes and more routes spread the fixed costs and let the airline win more price-sensitive travelers. The risk is that everyone else is playing the same game, and when rivals add seats faster than demand grows, fares fall and margins get squeezed. Jeju Air's edge comes from being the largest budget player in its home market, with a strong domestic base and a dense web of short international routes.
Saved answer · last researched 15 Nov 2026