Taipei (TPE) to Jeju City (CJU): 663 miles (1,067 km) great-circle, about 1h 50m nonstop by our estimate. Cheapest fare observed: $345 round-trip on Jeju Air, with 1 stop, departing July 5, 2026.
$345 round-trip, Jeju Air 7C6102, departing 2026-07-05 at 11:55, returning 2026-07-17. The recorded itinerary left on a Sunday, returning on a Friday 12 nights later; the fare was observed 71 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $345, it ranked 14th of the 30 round-trip fares we recorded from TPE (median $357). That is 52.0 cents per great-circle mile (round-trip price over one-way distance), above the TPE median of 28.1 cents across 30 round-trip routes.
Routes from TPE of similar length: Macau (524 mi) at $251 and Fukuoka (808 mi) at $365.
Jeju Air had the cheapest fare on 3 of 30 TPE routes. It is the 25th longest of the 30 routes we track from TPE.
Of 2 departure airports with a fare to Jeju City, Taipei (TPE) ranked 2nd at $345. Lowest: $78 from Seoul (ICN); highest: $345 from Taipei (TPE); 1 nonstop. Cheapest-fare airlines (routes): Jeju Air (2).
That depends on your passport and trip, so check the official source for South Korea: Republic of Korea: K-ETA. Connecting elsewhere? Check that country's transit rules too.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones Asia/Taipei, Asia/Seoul; flight time is our estimate.