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Flights between Seoul (ICN) and Singapore (SIN)

Incheon International Airport, South Korea ↔ Singapore Changi Airport, Singapore

A direct route between Seoul and Singapore appears in the OpenFlights route network.

Airlines currently operating this route:

Observed from recent schedules · as of 21 Jul 2026 — sampled, not a live timetable; confirm with the airline.

Asiana Airlines (OZ)Jeju Air (7C)Korean Air (KE)Scoot (TR)Singapore Airlines (SQ)T'Way Air (TW)
Distance
4,627 km
2,875 miles
Est. flight time
6h 17m
great-circle estimate
Time difference
~1h
varies with DST
View this route on the live map →Search fares on Skyscanner ↗

Climate

Typical monthly temperatures in South Korea

Jan
3°
8/-2
20mm
Feb
6°
11/1
25mm
Mar
11°
16/6
50mm
Apr
18°
23/13
70mm
May
23°
28/18
100mm
Jun
27°
32/22
130mm
Jul
29°
34/24
350mm
Aug
30°
35/25
290mm
Sep
26°
31/21
170mm
Oct
20°
25/15
50mm
Nov
12°
17/7
50mm
Dec
5°
10/0
25mm

Mean °C (high/low below), avg. rainfall mm · country-level monthly normals, not airport-specific.

Typical monthly temperatures in Singapore

Jan
30°
35/25
240mm
Feb
31°
36/26
160mm
Mar
31°
36/26
180mm
Apr
32°
37/27
170mm
May
32°
37/27
170mm
Jun
32°
37/27
150mm
Jul
31°
36/26
150mm
Aug
31°
36/26
170mm
Sep
31°
36/26
180mm
Oct
31°
36/26
200mm
Nov
31°
36/26
250mm
Dec
30°
35/25
290mm

Mean °C (high/low below), avg. rainfall mm · country-level monthly normals, not airport-specific.

Travel advisories

South Korea: Normal precautions (UK FCDO) ↗Singapore: Normal precautions (UK FCDO) ↗

Common questions

How far is Seoul from Singapore?

Seoul (ICN) and Singapore (SIN) are around 4,627 km (2,875 miles) apart — an estimated 6h 17m by air. Distances and flight times are great-circle estimates.

Which airlines have operated the ICN–SIN route?

Airlines recorded operating this route in the OpenFlights network include Asiana Airlines, Jeju Air, Korean Air, Scoot, Singapore Airlines, T'Way Air. This reflects historical scheduled service and may be out of date.

What is the time difference between Seoul and Singapore?

Time difference ~ 1 hour (varies with daylight-saving).

When is it warmest in Singapore?

Across Singapore, the warmest month on average is April, with mean temperatures around 32°C. These are country-level monthly climate normals, not airport-specific.

Are there travel advisories for South Korea and Singapore?

The UK FCDO currently rates South Korea as Normal precautions; The UK FCDO rates Singapore as Normal precautions. Check the official sources before you travel.

Distances and flight times are great-circle estimates, not booked block times.