When is the Houston to Tokyo 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.

IAH to HND Turbulence Forecast

Q: Is the Houston to Tokyo flight turbulent?

The IAH–HND route typically experiences moderate turbulence.

Q: Which seat is smoothest on IAH to HND?

Wing seats are smoothest. On a Boeing 777 · Airbus A350, that's rows 20–38. Avoid the rear of the aircraft.

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

The IAH to HND flight takes approximately 13h 20m, covering 6,664 miles at 37,000 feet.

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

Live forecast

IAH

→

HND

Houston · Tokyo · 13h 20m

45.1

Turb Score

13h 20m

Duration

5,791 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 IAH–HND

0h1h2h3h4h5h6h13h 20m

Smooth

Light

Moderate

Heavy

About the IAH–HND route

The Houston to Tokyo route spans the Pacific Ocean — one of the longest commercial flight paths in the world at 6,664 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 United, American Airlines, Delta on Boeing 777 · Airbus A350 aircraft, with flights typically cruising at 37,000 feet over a distance of 6,664 miles (5,791 nautical miles).

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

Houston to Tokyo Flight Time

How long is the flight from IAH to HND?

13h 20m

Flight Time

6,664 mi

Distance

37,000 ft

Cruising Altitude

Boeing 777

Aircraft

The Houston (IAH) to Tokyo (HND) flight takes approximately 13h 20m, covering 6,664 miles (5,791 nautical miles) at 37,000 feet. The route is operated by United, American Airlines, Delta. Return flights (HND to IAH) take a similar time, though westbound transatlantic and transpacific routes are typically 30–60 minutes longer due to headwinds.

Turbulence levels on IAH–HND

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 IAH–HND

Turbulence by month

Smooth

Light

Moderate

Rough

Best seat on IAH–HND

Boeing 777

Front

Rows 1–19

Light

✓ Wing

Rows 20–38

Smoothest

Rear

Rows 39+

Rougher

Wing seats are over the center of gravity — least affected by turbulence.

What you'll see in the app

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Similar routes

Other popular routes with turbulence data

IAH → LAX

Houston → Los Angeles

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Turbulence Forecast Map

Global turbulence outlook

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Passenger Reports

Flew this in April 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 · April

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

Business traveler · October

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

Leisure traveler · January

All IAH routes→ All HND routes→

Frequently asked questions

Is the Houston to Tokyo flight turbulent?

The IAH–HND route typically experiences moderate turbulence. The turbulence score for this route is 45.1/100.

When is turbulence worst on IAH to HND?

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 IAH to HND?

Wing seats are always the smoothest. On a Boeing 777 (the most common aircraft on this route), that's rows 20–38. Avoid the very rear of the aircraft — it amplifies turbulence motion.

How long is the flight from IAH to HND?

The IAH to HND flight takes approximately 13h 20m, covering 6,664 miles (5,791 nautical miles).

Which airlines fly IAH to HND?

The main airlines operating this route are United, American Airlines, Delta, flying Boeing 777 · Airbus A350 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