LIS
Lisbon Humberto Delgado Airport
✈
CNF
Tancredo Neves International Airport
Distance
4,017 nm
Altitude
40,000 ft
Est. Duration
9h 16m
Route Information
Departure

LIS (LIS)

Distance

7,439.9 km (4,017.3 nautical miles)

Arrival

CNF (CNF)

Estimated Flight Time

556 minutes (9h 16m)

Flight Profile

Cruise Altitude: 40,000 ft (Flight Level 400)

Route calculated using great circle navigation

Turbulence comfort along route
Comfort score combines turbulence probability with intensity, higher means rougher
Smooth Light Moderate Severe
💙
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 they don't put the aircraft in danger. Many passengers feel exactly the same way.
AI-powered flight briefing
14,500 data points analyzed · HIGH confidence
Your Flight

We analysed more than 14,500 data points along your route from Lisbon Humberto Delgado Airport, Lisbon to Tancredo Neves International Airport, Belo Horizonte.

Your Journey Beta

A brief bumpy patch may occur during cruise. It's nothing to worry about - just keep your seatbelt fastened.

Your route takes you crossing the North Atlantic Ocean and crossing the South Atlantic Ocean – these areas can sometimes cause light 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 25 knots. These winds may delay arrival by a few minutes.

Landing

Landing should feel a bit bumpy on descent 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 9h 16min
Maximum turbulence expected per segment
Takeoff
Light
0:30-1:00
Light
1:00-1:30
Light
1:30-2:00
Light
2:00-2:29
Smooth
2:29-2:58
Light
2:58-3:27
Smooth
3:27-3:56
Smooth
3:56-4:25
Smooth
4:25-4:54
Smooth
4:54-5:23
Light
5:23-5:52
Light
5:52-6:21
Light
6:21-6:50
Smooth
6:50-7:19
Smooth
7:19-7:48
Smooth
7:48-8:17
Light
8:17-8:46
Light
Landing
Moderate
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
LIS Lisbon Humberto Delgado Airport - Departure
Wind
12 kt (330°)
Sky
NSC
Temperature
20°C
Conditions
VFR - Clear conditions, no delays expected
CNF Tancredo Neves International Airport - Arrival
Wind
7 kt (130°)
Sky
NSC
Temperature
19°C
Conditions
VFR - Clear conditions, no delays expected
Your flight details
Departure timing and aircraft information
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.

Fly this route, calmly Game · Beta A calming mini-game, not a forecast. Glide LIS → CNF through soft clouds, nothing to crash into.