Domestic only · Transit via Bangkok
ICN does not offer nonstop international flights.
Most passengers from Seoul connect via Suvarnabhumi (BKK) or Don Mueang (DMK) for international routes. Aviasales finds the cheapest connection live.
Incheon International Airport (ICN, ICAO RKSI) is in Seoul, South Korea. It is the based hub of Korean Air and Asiana Airlines. In the SiamFlights catalogue, ICN is served by 5 airlines across 3 routes (0 outbound, 3 inbound).
Airport at a glance
| Attribute | Detail |
|---|---|
| IATA / ICAO | ICN / RKSI |
| City / country | Seoul, South Korea |
| Direct destinations (catalogued) | 0 |
| Reached from (origins) | 3 |
| Based hub carriers | Korean Air and Asiana Airlines |
| Coordinates | 37.469, 126.451 |
Airlines serving ICN
| Airline | Alliance | Baggage | Role |
|---|---|---|---|
| Korean Air (KE) | SkyTeam | 30 kg | hub |
| Asiana Airlines (OZ) | Star Alliance | 30 kg | hub |
| Thai Airways (TG) | Star Alliance | 30 kg | |
| T’way Air (TW) | — | — | |
| Jin Air (LJ) | — | — |
ICN route overview
Inbound
| Route | Freq/wk | Hours | Market low |
|---|---|---|---|
| Bangkok (BKK) → Seoul (ICN) | 56× | 5.5 | ฿4,292 |
| Phuket (HKT) → Seoul (ICN) | 21× | 6.2 | — |
| Chiang Mai (CNX) → Seoul (ICN) | 7× | 6.0 | — |
Corridors & fares from ICN
Most ICN corridors here serve ASEAN & regional leisure travellers. The mix is 3 medium sectors (4–7 h). 1 are labour-migration or diaspora corridors where extra-baggage allowances matter. Fares are shown in Thai baht (THB), and each route guide below carries live cached prices.
Direct flights to ICN — 3 routes
FAQ
Where is ICN airport located?
ICN (ICAO RKSI) is in Seoul, South Korea.
Which airlines serve ICN?
5 airlines serve ICN, including Korean Air, Asiana Airlines, Thai Airways and T’way Air. Compare baggage and alliances in the table above.
How many routes run from/to ICN?
The SiamFlights catalogue lists 0 outbound and 3 inbound routes for ICN.
Is ICN an airline hub?
ICN is a primary hub for Korean Air and Asiana Airlines.
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