Klm AMS JNB KL8331
Klm · Live forecast
AMS → JNB
KL8331 · Apr 17, 2026 · 23:40 CES
Also sold as: MP8341 Martinair KL8341 Klm
89
Calm Score
"A smooth ride ahead — sit back and enjoy."
10h 50m
Duration
4,869 nm
Distance
39,000 ft
Cruise Altitude
HIGH
Confidence
Turbulence comfort along route
Comfort score combines turbulence probability with intensity — higher means rougher
Smooth Light Moderate Severe

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💙
We know turbulence can feel scary — especially on long flights. This report is built for you: what bumps feel like, when they happen, and why you'll be completely safe. 1 in 3 passengers feel exactly like you.
AI-powered flight briefing
17,500 data points analyzed · HIGH confidence
Your Flight

We analysed more than 17,500 data points along your route from Schiphol, Amsterdam to O.R. Tambo International Airport, Johannesburg.

Your Journey Beta

2 hours 40 minutes, 3 hours 35 minutes, and 10 hours into the flight: Some moderate bumps expected.
The crew may adjust altitude or ask you to stay seated during these sections.
The rest of the flight should be smooth.

Your route takes you over the Alps, over the Apennines, crossing the Mediterranean Sea, and across the Sahara Desert – these areas can sometimes cause turbulence.

Smooth Flight

We're expecting smooth conditions throughout your flight. You can sit back and relax.

Takeoff

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

Winds Aloft

Winds at cruising altitude are about 41 knots. These winds are favorable and may get you there a few minutes early.

Landing

Landing should feel smooth 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 turbulence prediction algorithm combining atmospheric Richardson Number, wind shear analysis, temperature gradients, and geomagnetic activity. Learn more
Live data from ECMWF global forecast models · 12 atmospheric pressure levels · Updated every 6 hours
Flight Timeline 10h 50min
Maximum turbulence expected per segment
Takeoff
Light
0:30-1:00
Light
1:00-1:30
Light
1:30-2:00
Light
2:00-2:30
Light
2:30-3:00
Moderate
3:00-3:30
Moderate
3:30-4:00
Moderate
4:00-4:30
Light
4:30-5:00
Light
5:00-5:30
Light
5:30-5:59
Light
5:59-6:28
Light
6:28-6:57
Smooth
6:57-7:26
Light
7:26-7:55
Moderate
7:55-8:24
Smooth
8:24-8:53
Smooth
8:53-9:22
Light
9:22-9:51
Light
9:51-10:20
Moderate
Landing
Light
Smooth
Light
Moderate
Severe
Longer bars indicate higher turbulence intensity. Values shown are the maximum for each time segment.
Airport conditions
Live weather at departure and arrival
AMS Schiphol — Departure
Wind
5 kt (260°)
Sky
NSC
Temperature
12°C
Conditions
VFR — Clear conditions, no delays expected
JNB O.R. Tambo International Airport — Arrival
Wind
10 kt (340°)
Sky
Scattered
Temperature
14°C
Conditions
VFR — Clear conditions, no delays expected
Your flight details
Departure timing and aircraft information
Evening Flight Departure
Time of day
Evening Flight
Tip
Evening and night flights typically offer smoother conditions as thermal activity subsides and the atmosphere stabilizes after sunset.
When
Today
b744
Category
Wide-Body Aircraft
Size
Large
Comfort
Large, twin-aisle aircraft like this generally provide the smoothest ride through turbulence due to their size, weight, and advanced stabilization systems.
Data sources & our approach
ZeroTurb's Custom Algorithm: Our proprietary ZeroTurb Index (ZTI) combines three meteorological indices weighted by their predictive accuracy — giving 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.