When is the Tokyo to Seoul route most turbulent?

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

HND to ICN Turbulence Forecast

Q: Is the Tokyo to Seoul flight turbulent?

The HND–ICN route typically experiences light turbulence. Light turbulence may occur — mostly smooth with occasional bumps.

Q: Which seat is smoothest on HND to ICN?

Wing seats are smoothest. On a Boeing 767 · Airbus A380, that's rows 22–36. Avoid the rear of the aircraft.

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

The HND to ICN flight takes approximately 2h 30m, covering 835 miles at 37,000 feet.

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

Live forecast

HND

→

ICN

Tokyo · Seoul · 2h 30m

Turb Score

2h 30m

Duration

726 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 HND–ICN

0h1h2h3h4h5h6h2h 30m

Smooth

Light

Moderate

Heavy

About the HND–ICN route

The Tokyo to Seoul 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 ANA, Korean Air, Asiana on Boeing 767 · Airbus A380 aircraft, with flights typically cruising at 37,000 feet over a distance of 835 miles (726 nautical miles).

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

Turbulence levels on HND–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 HND–ICN

Turbulence by month

Smooth

Light

Moderate

Rough

Best seat on HND–ICN

Boeing 767 (261 seats)

Front

Rows 1–21

Light

✓ Wing

Rows 22–36

Smoothest

Rear

Rows 37+

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

See all transatlantic flights →

Passenger Reports

The 2h 30m flight had some light shaking around the halfway point. Nothing spilled, nobody panicked. Just normal flying.

Leisure traveler · January

A few bumpy patches over the subcontinent, lasted maybe half an hour total. Drink service was paused briefly. Not unusual for this time of year.

Frequent flyer · July

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

Parent traveling with kids · April

All HND routes→ All ICN routes→

Frequently asked questions

Is the Tokyo to Seoul flight turbulent?

The HND–ICN route typically experiences light turbulence. Light turbulence may occur — mostly smooth with occasional bumps. The turbulence score for this route is 30/100.

When is turbulence worst on HND to ICN?

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 HND to ICN?

Wing seats are always the smoothest. On a Boeing 767 (261 seats) (the most common aircraft on this route), that's rows 22–36. Avoid the very rear of the aircraft — it amplifies turbulence motion.

How long is the flight from HND to ICN?

The HND to ICN flight takes approximately 2h 30m, covering 835 miles (726 nautical miles).

Which airlines fly HND to ICN?

The main airlines operating this route are ANA, Korean Air, Asiana, flying Boeing 767 · Airbus A380 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