ICN to SIN: Distance and Flight Time
The distance from Incheon International Airport (ICN) to Singapore Changi Airport (SIN) is 4,627 km (2,875 mi). A typical nonstop flight covers it in about 6h 15m, heading southwest. The distance is the same in either direction (SIN to ICN).
How far is it from Seoul to Singapore?
The great-circle distance between Incheon International Airport (ICN) and Singapore Changi Airport (SIN) is 4,627 km (2,875 mi, 2,499 nautical miles). That is the straight-line distance; a real flight is a little longer because of air-traffic routing.
How long is the flight from ICN to SIN?
A nonstop flight typically takes about 6h 15m. This is an estimate from the distance; actual block times depend on the aircraft, winds and the exact routing. SIN is roughly southwest of ICN.
How is the ICN to SIN route written in code?
The pair is written ICN-SIN in IATA codes and RKSI-WSSS in ICAO codes, the form used on a flight plan. Incheon International Airport is ICN (RKSI), Singapore Changi Airport is SIN (WSSS).
| ICN | SIN | |
|---|---|---|
| Airport | Incheon International Airport | Singapore Changi Airport |
| ICAO code | RKSI | WSSS |
| Country | South Korea | Singapore |
| Elevation | 23 ft | 22 ft |
| Rank by connections | #14 | #12 |
RKSI starts with R, the ICAO prefix for East Asia; WSSS starts with W, the prefix for the Malay Archipelago. How ICAO prefixes are laid out.
The two fields sit at almost the same height, within 1 ft (0 m) of each other.
Airlines flying ICN to SIN
4 airlines appear on this route in the open route dataset, 4 of them still listed as active. Each row gives the IATA code, the ICAO code and the radio callsign, which is what an air traffic controller hears:
| IATA | Airline | ICAO | Callsign | Status |
|---|---|---|---|---|
| KE | Korean Air | KAL | Koreanair | Active |
| OZ | Asiana Airlines | AAR | Asiana | Active |
| SQ | Singapore Airlines | SIA | Singapore | Active |
| US | US Airways | USA | U S Air | Active |
A further 1 carrier sell this pair as a codeshare without operating it: AI.
Route and carrier data comes from the OpenFlights open dataset, regenerated here on . It is a historical snapshot of scheduled connections, not a live schedule, and it includes codeshare listings, so some carriers shown may no longer operate the route or exist. How we build this · Data and sources.
Frequently asked questions
How far is Seoul from Singapore?
Incheon International Airport (ICN) and Singapore Changi Airport (SIN) are 4,627 km (2,875 mi, 2,499 nautical miles) apart in a straight line.
How long is the flight from ICN to SIN?
A typical nonstop flight between ICN and SIN takes about 6h 15m. Actual times vary with aircraft type, winds and routing.
What direction is SIN from ICN?
Singapore Changi Airport (SIN) lies roughly southwest of Incheon International Airport (ICN).
Which airlines fly ICN to SIN?
4 airlines appear on the ICN-SIN route in the open dataset, including Korean Air, Asiana Airlines, Singapore Airlines.
Related routes
Other routes from Seoul (ICN):
Other routes from Singapore (SIN):
ICN airport code · SIN airport code · Busiest airports worldwide