Every Seoul–San José fare we track, measured against the route's typical price whenever there is enough cached history to build one. Subscribe in any RSS reader for free single-route price alerts — no account, no email needed.https://flight.dealsen-ushttps://flight.deals/flights/seoul-to-san-jose-costa-rica/#2026-12-01-2026-12-04-YPhttps://flight.deals/flights/seoul-to-san-jose-costa-rica/#2026-12-01-2026-12-04-YPSEL → SJO round-trip on Air Premia, 2026-12-01 to 2026-12-04 (3 nights). Cached fare $1,894. Not enough cached history on this route yet to say what it usually costs.Tue, 01 Sep 2026 12:09:07 GMT