Distance From Incheon International Airport to Singapore Changi Airport, ICN - SIN Distance

The distance from Incheon International Airport (ICN) to Singapore Changi Airport (SIN) is 2876 miles or 4628 kilometers or 2497 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Seoul ( South Korea ) to Singapore ( Singapore )?

A one-way nonstop (direct) flight between Seoul and Singapore takes around 6 hours 36 minutes.

Estimated flight time from Incheon International Airport, Seoul, South Korea to Singapore Changi Airport, Singapore, Singapore is 6 hours 36 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • ICN - SIN

Kilometers		4628 km
Statute Miles		2876 miles
Nautical Miles		2497 nm
Avg. Time of Flight		6 hours 36 minutes

Incheon International Airport to Singapore Changi Airport Flight Route Map - ICN to SIN Flight Path

Location of Incheon International Airport & Singapore Changi Airport is given below.
Click the map to view Seoul to Singapore nonstop flight path and travel direction.

Click to see flight route on Google Map between Seoul, South Korea and Singapore, Singapore. .

Nonstop flight route between Seoul, South Korea and Singapore, Singapore.

Time Difference Between the Airports • ICN - SIN

Time difference between Seoul (South Korea) and Singapore (Singapore) is 1 Hours.
Singapore time is 1 Hours behind Seoul.

Location	Local Time
Seoul (South Korea)	2026-04-01, 22:42:42 KST
Singapore (Singapore)	2026-04-01, 21:42:42 +08

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Incheon International Airport (ICN / RKSI) Seoul, South Korea

Destination

Singapore Changi Airport (SIN / WSSS) Singapore, Singapore