When is the Hanoi 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 HAN to ICN route?

The HAN–ICN route is typically operated by Boeing 787 · Airbus A321. Airlines include Vietnam Airlines, Korean Air, Asiana, Jeju Air.

Is turbulence on HAN to ICN dangerous?

No — turbulence on the HAN–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 HAN to ICN flight?

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

HAN to ICN Turbulence Forecast

Q: Is the Hanoi to Seoul flight turbulent?

The HAN–ICN route typically experiences moderate turbulence. A very smooth flight with minimal turbulence expected.

Q: Which seat is smoothest on HAN to ICN?

Wing seats are smoothest. On a Boeing 787 · Airbus A321, that's rows 16-26. Avoid the rear of the aircraft where turbulence is felt most.

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

The HAN to ICN flight takes approximately 4h 25m, covering 2,545 miles (2,210 nautical miles) at a cruising altitude of 37,000 feet.

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

Live forecast

HAN

→

ICN

Hanoi · Seoul · 4h 25m

Turb Score

4h 25m

Duration

2,210 nm

Distance

37,000 ft

Cruise Alt.

Moderate

Typical

⚠️ Moderate turbulence today

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Typical turbulence along the route

Historical average pattern for HAN–ICN

0h1h2h3h4h5h6h4h 25m

Smooth

Light

Moderate

Heavy

About the HAN–ICN route

The Hanoi to Seoul route spans the Pacific Ocean — one of the longest commercial flight paths in the world at 2,545 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 Vietnam Airlines, Korean Air, Asiana, Jeju Air on Boeing 787 · Airbus A321 aircraft, with flights typically cruising at 37,000 feet over a distance of 2,545 miles (2,210 nautical miles).

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

Hanoi to Seoul Flight Time

How long is the flight from HAN to ICN?

4h 25m

Flight Time

2,545 mi

Distance

37,000 ft

Cruising Altitude

Boeing 787

Aircraft

The Hanoi (HAN) to Seoul (ICN) flight takes approximately 4h 25m, covering 2,545 miles (2,210 nautical miles) at 37,000 feet. The route is operated by Vietnam Airlines, Korean Air, Asiana, Jeju Air. Return flights (ICN to HAN) take a similar time, though westbound transatlantic and transpacific routes are typically 30–60 minutes longer due to headwinds.

Turbulence levels on HAN–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

Get minute-by-minute timing for your specific flight

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Best time to fly HAN–ICN

Turbulence by month

Smooth

Light

Moderate

Rough

Best seat on HAN–ICN

Boeing 787-8

Front

Rows 1–15

Light

✓ Wing

Rows 16-26

Smoothest

Rear

Rows 27+

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 transpacific flights →

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Turbulence Tracker

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Best Seat Guide

Which rows feel turbulence least

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Clear-Air Turbulence

The invisible rough air that's increasing

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Turbulence in 2025

Is turbulence getting worse?

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Turbulence Forecast Map

Global turbulence outlook

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Passenger Reports

More turbulent than I expected. The over the Pacific section was pretty rough — overhead bins rattling, some gasps from other passengers. Died down before landing.

Leisure traveler · March

Rough patch over the North Pacific in March — drinks went everywhere on the row behind me. Probably 45 minutes of actual turbulence. Nothing dangerous but definitely uncomfortable.

Business traveler · March

Flew this in January expecting smooth skies based on past experience, but it was noticeably bumpier than usual. About an hour of moderate chop. Seatbelt sign basically stayed on.

Regular traveler · January

All HAN routes→ All ICN routes→

Frequently asked questions

Is the Hanoi to Seoul flight turbulent?

The HAN–ICN route typically experiences moderate turbulence. A very smooth flight with minimal turbulence expected. The turbulence score for this route is 7/100.

When is turbulence worst on HAN 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 HAN to ICN?

Wing seats are always the smoothest. On a Boeing 787-8 (the most common aircraft on this route), that's rows 16-26. Avoid the very rear of the aircraft — it amplifies turbulence motion.

How long is the flight from HAN to ICN?

The HAN to ICN flight takes approximately 4h 25m, covering 2,545 miles (2,210 nautical miles).

Which airlines fly HAN to ICN?

The main airlines operating this route are Vietnam Airlines, Korean Air, Asiana, Jeju Air, flying Boeing 787 · 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