When is the Tokyo to Seoul route most turbulent?

See the monthly chart above for exact patterns. Transatlantic and mountain routes are typically roughest in winter (Dec–Mar). Tropical and Caribbean routes peak during monsoon season (Jul–Sep).

What aircraft operates the NRT to ICN route?

The NRT–ICN route is typically operated by Boeing 737 · Airbus A321. Airlines include ANA, Korean Air, Asiana, JAL.

Is turbulence on NRT to ICN dangerous?

No — turbulence on the NRT–ICN route is not dangerous to the aircraft. Modern commercial aircraft are built to withstand far more stress than any turbulence encountered. The main risk is to unbelted passengers. Always keep your seatbelt fastened when seated.

How can I check turbulence before my NRT to ICN flight?

Use the Turbulence Forecast app (iOS & Android) for real-time PIREPs, SIGMET alerts, and AI-powered forecasts for the NRT–ICN route. The app shows minute-by-minute turbulence timing for your specific flight date.

NRT to ICN Turbulence Forecast

Q: Is the Tokyo to Seoul flight turbulent?

The NRT–ICN route typically experiences light turbulence.

Q: Which seat is smoothest on NRT to ICN?

Wing seats are smoothest. On a Boeing 737 · Airbus A321, that's rows 15-22. Avoid the rear of the aircraft where turbulence is felt most.

Q: How long is the flight from NRT to ICN?

The NRT to ICN flight takes approximately 2h 30m, covering 860 miles (747 nautical miles) at a cruising altitude of 37,000 feet.

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

Live forecast

NRT

→

ICN

Tokyo · Seoul · 2h 30m

4.3

Turb Score

2h 30m

Duration

747 nm

Distance

37,000 ft

Cruise Alt.

light

Typical

⚠️ light turbulence today

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Typical turbulence along the route

Historical average pattern for NRT–ICN

0h1h2h3h4h5h6h2h 30m

Smooth

Light

Moderate

Heavy

About the NRT–ICN route

The Tokyo to Seoul route spans the Pacific Ocean — one of the longest commercial flight paths in the world at 860 miles. The Pacific jet stream creates moderate turbulence, typically around 3–7 hours into the flight. The sheer length of the route means passengers experience varying conditions: calm stretches punctuated by bumpy patches.

The route is served by ANA, Korean Air, Asiana, JAL on Boeing 737 · Airbus A321 aircraft, with flights typically cruising at 37,000 feet over a distance of 860 miles (747 nautical miles).

💡 Tip: Long flight — turbulence varies throughout. Wing seats significantly reduce motion.

Tokyo to Seoul Flight Time

How long is the flight from NRT to ICN?

2h 30m

Flight Time

860 mi

Distance

37,000 ft

Cruising Altitude

Boeing 737

Aircraft

The Tokyo (NRT) to Seoul (ICN) flight takes approximately 2h 30m, covering 860 miles (747 nautical miles) at 37,000 feet. The route is operated by ANA, Korean Air, Asiana, JAL. Return flights (ICN to NRT) take a similar time, though westbound transatlantic and transpacific routes are typically 30–60 minutes longer due to headwinds.

Turbulence levels on NRT–ICN

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 NRT–ICN

Turbulence by month

Smooth

Light

Moderate

Rough

Best seat on NRT–ICN

Boeing 737

Front

Rows 1–14

Light

✓ Wing

Rows 15-22

Smoothest

Rear

Rows 23+

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

Similar routes

Other popular routes with turbulence data

Tokyo → San Francisco

See all transpacific flights →

Related guides

Learn more about flight turbulence

Turbulence Tracker

Track any flight in real time

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Best Seat Guide

Which rows feel turbulence least

→

Clear-Air Turbulence

The invisible rough air that's increasing

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Turbulence in 2025

Is turbulence getting worse?

→

Turbulence Forecast Map

Global turbulence outlook

→

Passenger Reports

There was some noticeable movement over the North Pacific that made me grip the armrest. My seatmate (clearly a regular) didn't even look up from their book. Perspective.

First-time flyer · July

Kids barely noticed the turbulence — just some mild bumps crossing the dateline. Seatbelt sign was on and off a couple times. Nothing dramatic.

Parent traveling with kids · April

Some light chop over the Pacific — seatbelt sign came on for maybe 20 minutes but nothing to worry about. Typical for this route in March.

Regular traveler · March

All NRT routes→ All ICN routes→

Frequently asked questions

Is the Tokyo to Seoul flight turbulent?

The NRT–ICN route typically experiences light turbulence. The turbulence score for this route is 4.3/100.

When is turbulence worst on NRT to ICN?

Long flight — turbulence varies throughout. Wing seats significantly reduce motion. Check the turbulence chart above for the typical pattern along this specific route.

Which seat is smoothest on NRT to ICN?

Wing seats are always the smoothest. On a Boeing 737 (the most common aircraft on this route), that's rows 15-22. Avoid the very rear of the aircraft — it amplifies turbulence motion.

How long is the flight from NRT to ICN?

The NRT to ICN flight takes approximately 2h 30m, covering 860 miles (747 nautical miles).

Which airlines fly NRT to ICN?

The main airlines operating this route are ANA, Korean Air, Asiana, JAL, flying Boeing 737 · Airbus A321 aircraft.

Data Sources

PIREP — Pilot reports (PIREPs) submitted via FAA/ICAO systems, aggregated over 12+ months of historical data
SIGMET / AIRMET — Significant Meteorological Information bulletins from NOAA Aviation Weather Center
EDR data — Eddy Dissipation Rate measurements from commercial aircraft (ADS-B derived turbulence intensity)
Seasonal patterns — 5-year rolling averages of turbulence frequency and intensity by month for this route

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