ICN to CGK Turbulence Forecast

Is the Seoul to Jakarta flight turbulent? Live forecast & historical patterns.

Live forecast
ICN
CGK
Seoul · Jakarta · 6h 40m
24.8
Turb Score
6h 40m
Duration
2,842 nm
Distance
37,000 ft
Cruise Alt.
Smooth
Typical
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Typical turbulence along the route

Historical average pattern for ICN–CGK

Smooth Light Moderate
0h1h2h3h4h5h6h6h 40m
Smooth
Light
Moderate
Heavy

About the ICN–CGK route

The Seoul to Jakarta route crosses the North Atlantic, where the jet stream is the primary source of turbulence. Flying at 37,000 feet, the aircraft encounters the strongest bumps roughly 2–5 hours into the flight. This is clear-air turbulence — no clouds, no visual warning — which makes a pre-flight forecast especially valuable.

The route is served by Singapore Airlines, Cathay Pacific, Thai Airways on Boeing 757 · Airbus A330 aircraft, with flights typically cruising at 37,000 feet over a distance of 3,271 miles (2,842 nautical miles).

💡 Tip: Turbulence peaks mid-flight over the Atlantic. First and last hour are usually smooth.

Seoul to Jakarta Flight Time

How long is the flight from ICN to CGK?

6h 40m
Flight Time
3,271 mi
Distance
37,000 ft
Cruising Altitude
Boeing 757
Aircraft

The Seoul (ICN) to Jakarta (CGK) flight takes approximately 6h 40m, covering 3,271 miles (2,842 nautical miles) at 37,000 feet. The route is operated by Singapore Airlines, Cathay Pacific, Thai Airways. Return flights (CGK to ICN) take a similar time, though westbound transatlantic and transpacific routes are typically 30–60 minutes longer due to headwinds.

Turbulence levels on ICN–CGK

What to expect at each phase of the flight

SmoothDeparture & arrival — climb and descent phases are generally calm
LightMinor bumps — drink stays in your cup, walking feels slightly unsteady
ModerateNoticeable bumps — stay seated with seatbelt on, service may pause
HeavyStrong jolts — unsecured items move, crew seated. Rare but possible

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Best time to fly ICN–CGK

Turbulence by month

J
F
M
A
M
J
J
A
S
O
N
D
Smooth
Light
Moderate
Rough

Best seat on ICN–CGK

Boeing 757

Front
Rows 1–13
Light
✓ Wing
Rows 14–24
Smoothest
Rear
Rows 25+
Rougher
Wing seats are over the center of gravity — least affected by turbulence.

What you'll see in the app

Full forecast, live map & seat recommendations

ICN to CGK turbulence forecast app
Flight turbulence tracker
Real-time turbulence map

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Passenger Reports

Did Seoul to Jakarta last April and it was genuinely one of the smoothest long-haul flights I've had. Barely any movement the whole way.
Frequent flyer · April
Fly this route pretty regularly for work. Most of the time it's smooth — October was completely fine, not a bump worth mentioning.
Business traveler · October
Totally smooth January flight. The seatbelt sign came on once briefly mid-flight but nothing actually happened. Great trip.
Leisure traveler · January
All ICN routes All CGK routes

Frequently asked questions

Is the Seoul to Jakarta flight turbulent?
The ICN–CGK route typically experiences smooth turbulence. The turbulence score for this route is 24.8/100.
When is turbulence worst on ICN to CGK?
Turbulence peaks mid-flight over the Atlantic. First and last hour are usually smooth. Check the turbulence chart above for the typical pattern along this specific route.
Which seat is smoothest on ICN to CGK?
Wing seats are always the smoothest. On a Boeing 757 (the most common aircraft on this route), that's rows 14–24. Avoid the very rear of the aircraft — it amplifies turbulence motion.
How long is the flight from ICN to CGK?
The ICN to CGK flight takes approximately 6h 40m, covering 3,271 miles (2,842 nautical miles).
Which airlines fly ICN to CGK?
The main airlines operating this route are Singapore Airlines, Cathay Pacific, Thai Airways, flying Boeing 757 · Airbus A330 aircraft.

Data Sources

Scores represent typical conditions. Actual turbulence varies daily. For real-time forecasts, use the Turbulence Forecast app. · About our data