When is the Tokyo to Hanoi 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 HAN Turbulence Forecast

Q: Is the Tokyo to Hanoi flight turbulent?

The HND–HAN route typically experiences light turbulence.

Q: Which seat is smoothest on HND to HAN?

Wing seats are smoothest. On a Airbus A320 · Boeing 737, that's rows 10–20. Avoid the rear of the aircraft.

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

The HND to HAN flight takes approximately 4h 50m, covering 2,274 miles at 35,000 feet.

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

Live forecast

HND

→

HAN

Tokyo · Hanoi · 4h 50m

34.9

Turb Score

4h 50m

Duration

1,976 nm

Distance

35,000 ft

Cruise Alt.

Light

Typical

⚠️ Light turbulence today

Get exact timing, altitude & best seat — free

Download free on the App Store Get it on Google Play

★★★★★ 4.8 · Free · iOS & Android

Scan to get the full forecast ★★★★★ 4.8 · Free · iOS & Android · No sign-up

Typical turbulence along the route

Historical average pattern for HND–HAN

0h1h2h3h4h5h6h4h 50m

Smooth

Light

Moderate

Heavy

About the HND–HAN route

The Tokyo to Hanoi route crosses the North Atlantic, where the jet stream is the primary source of turbulence. Flying at 35,000 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 Airbus A320 · Boeing 737 aircraft, with flights typically cruising at 35,000 feet over a distance of 2,274 miles (1,976 nautical miles).

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

Tokyo to Hanoi Flight Time

How long is the flight from HND to HAN?

4h 50m

Flight Time

2,274 mi

Distance

35,000 ft

Cruising Altitude

Airbus A320

Aircraft

The Tokyo (HND) to Hanoi (HAN) flight takes approximately 4h 50m, covering 2,274 miles (1,976 nautical miles) at 35,000 feet. The route is operated by Singapore Airlines, Cathay Pacific, Thai Airways. Return flights (HAN to HND) take a similar time, though westbound transatlantic and transpacific routes are typically 30–60 minutes longer due to headwinds.

Turbulence levels on HND–HAN

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

Download on the App Store Get it on Google Play

Best time to fly HND–HAN

Turbulence by month

Smooth

Light

Moderate

Rough

Best seat on HND–HAN

Airbus A320

Front

Rows 1–9

Light

✓ Wing

Rows 10–20

Smoothest

Rear

Rows 21+

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 transatlantic flights →

Related guides

Learn more about flight turbulence

Turbulence Tracker

Track any flight in real time

→

Best Seat Guide

Which rows feel turbulence least

→

Turbulence Forecast Map

Global turbulence outlook

→

Passenger Reports

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

Parent traveling with kids · April

Some light chop mid-flight — seatbelt sign came on for maybe 20 minutes but nothing to worry about. Typical for this route in September.

Regular traveler · September

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

First-time flyer · January

All HND routes→ All HAN routes→

Frequently asked questions

Is the Tokyo to Hanoi flight turbulent?

The HND–HAN route typically experiences light turbulence. The turbulence score for this route is 34.9/100.

When is turbulence worst on HND to HAN?

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 HAN?

Wing seats are always the smoothest. On a Airbus A320 (the most common aircraft on this route), that's rows 10–20. Avoid the very rear of the aircraft — it amplifies turbulence motion.

How long is the flight from HND to HAN?

The HND to HAN flight takes approximately 4h 50m, covering 2,274 miles (1,976 nautical miles).

Which airlines fly HND to HAN?

The main airlines operating this route are Singapore Airlines, Cathay Pacific, Thai Airways, flying Airbus A320 · Boeing 737 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