All Nippon Airways HND AXT NH401
All Nippon Airways
FLIGHT
NH401
HND
Tokyo Haneda International Airport
16:45
17 Jan
Now: --:-- JS
1 h 5 m
AXT
Akita
17:50
17 Jan
Now: --:-- JS
Aircraft: a21n Altitude: 25,000ft (7.6km) Distance: 245 nm Duration: 1 h 5 m Also sold by: Singapore Airlines
AIRCRAFT
a21n
ALTITUDE
25,000ft
DISTANCE
245 nm
DURATION
1 h 5 m
ALSO SOLD BY
Singapore Airlines
Times and gates subject to change. Verify with airline.
Turbulence Comfort Along Route Comfort View
Comfort Score: Combines turbulence probability (GTG forecast) with intensity (ZTI analysis). High scores indicate both high probability AND high intensity turbulence.
Smooth
Light
Moderate
Severe
Flight Smoothness Score
7.5 /10
Smoothness
Mostly Smooth
100%
Light

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Your flight departs in less than 6 hours. The forecast is unlikely to change significantly at this point.

AI-Powered Flight Briefing
📊 1,000 data points analyzed HIGH Confidence
Your Flight

We analysed more than 1,000 data points along your route from Tokyo Haneda International Airport, Tokyo to Akita, Akita.

Your Journey Beta

Your route takes you crossing the North Pacific Ocean – conditions there can sometimes cause light turbulence.

Mostly Smooth

Overall conditions look mostly smooth with occasional light bumps. Nothing to worry about.

Takeoff

Takeoff should feel smooth with possible light bumps, with calm conditions around the airport.

Winds Aloft

Winds at cruising altitude are about 88 knots.

Landing

Landing should feel smooth with possible light bumps with typical approach conditions.

You're in Safe Hands

If you feel nervous at any point, remember that turbulence is expected, safe, and part of normal flying. The crew is monitoring everything, and the aircraft is built to handle far more than anything you will feel. Have a safe and calm flight.

Relaxation Exercises
ZeroTurb Index (ZTI): Powered by our proprietary turbulence prediction algorithm combining atmospheric Richardson Number, wind shear analysis, temperature gradients, and geomagnetic activity for precise, real-time forecasting. Learn more
Live data from ECMWF global forecast models • 12 atmospheric pressure levels analyzed • Updated every 6 hours
Flight Timeline 1h 05min
Maximum turbulence expected per segment
Takeoff
Light
0:15-0:33
Light
0:33-0:50
Light
Landing
Light
Smooth
Light
Moderate
Severe
Longer bars indicate higher turbulence intensity. Values shown are the maximum for each time segment.
Turbulence Metrics ZTI and EDR (scaled)
ZTI Scale
Smooth
<12
Light
12-30
Moderate
30-45
Severe
>45
EDR Scale
Smooth
<6
Light
6-24
Moderate
24-42
Severe
>42

Airport Weather
Departure
HND
At Departure
11°C (Now)
Few • 6 kt • VFR — Clear conditions, no delays expected
Arrival
AXT
At Arrival
1°C (Now)
Broken • 16 kt • MVFR — Reduced visibility, minor delays possible
☀️ Morning Flight

Morning flights typically experience smoother conditions as the atmosphere is more stable and thermal turbulence hasn't yet developed.

Narrow-Body Aircraft (Medium)

Single-aisle mainline jets like this offer a comfortable ride. While you may feel turbulence more than on wide-body aircraft, they are engineered to handle it smoothly.

Looking for more detailed analysis?

Data Sources & Our Approach
ZeroTurb's Custom Algorithm: We've developed a proprietary ZeroTurb Index (ZTI) algorithm that combines three meteorological indices weighted by their predictive accuracy. This gives you transparent, passenger-focused turbulence probability instead of vague categories.

This forecast integrates data from:

Disclaimer: This forecast is for informational purposes only. Always consult official aviation weather sources and follow ATC guidance.

How accurate are turbulence alerts? Alerts are based on updated forecast models and pilot reports, and can change as departure approaches.