Qantas SIN LHR QF331
Qantas · Live forecast
SIN → LHR
QF331 · Mar 16, 2026 · 07:20 SS
87
Calm Score
"A smooth ride ahead — sit back and enjoy."
14h 40m
Duration
5,877 nm
Distance
40,000 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
21,000 data points analyzed · HIGH confidence
Your Flight

We analysed more than 21,000 data points along your route from Singapore Changi Airport, Singapore to London Heathrow Airport, London.

Your Journey Beta

2 hours and 3 hours 30 minutes 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 crossing the Strait of Malacca, crossing the Bay of Bengal, over the Himalayas, and over the Hindu Kush – 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 calm conditions around the airport.

Winds Aloft

Winds at cruising altitude are about 40 knots. These winds may delay arrival by up to 50 minutes.

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 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 14h 40min
Maximum turbulence expected per segment
Takeoff
Smooth
0:30-1:00
Smooth
1:00-1:30
Smooth
1:30-2:00
Moderate
2:00-2:30
Light
2:30-3:00
Light
3:00-3:30
Moderate
3:30-4:00
Moderate
4:00-4:30
Light
4:30-4:59
Light
4:59-5:28
Light
5:28-5:57
Light
5:57-6:26
Light
6:26-6:55
Light
6:55-7:24
Light
7:24-7:53
Light
7:53-8:22
Light
8:22-8:51
Light
8:51-9:20
Light
9:20-9:49
Light
9:49-10:18
Light
10:18-10:47
Light
10:47-11:16
Smooth
11:16-11:45
Smooth
11:45-12:14
Smooth
12:14-12:43
Smooth
12:43-13:12
Smooth
13:12-13:41
Smooth
13:41-14:10
Light
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
SIN Singapore Changi Airport — Departure
Wind
8 kt (10°)
Sky
Scattered
Temperature
32°C
Conditions
VFR — Clear conditions, no delays expected
LHR London Heathrow Airport — Arrival
Wind
10 kt (270°)
Sky
Few
Temperature
7°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.
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.