Icelandair LIS KEF FI579
Icelandair
FLIGHT
FI579
LIS
Lisbon Humberto Delgado Airport
21:20
01 Mar
Now: --:-- WES
4 h 30 m
KEF
Keflavik International Airport
01:50
02 Mar
Aircraft: b38m Altitude: 36,000ft (11.0km) Distance: 1,588 nm Duration: 4 h 30 m
AIRCRAFT
b38m
ALTITUDE
36,000ft
DISTANCE
1,588 nm
DURATION
4 h 30 m
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
8.6 /10
Smoothness
Smooth Flight
48%
Smooth
48%
Light
3%
Moderate

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AI-Powered Flight Briefing
📊 6,000 data points analyzed HIGH Confidence
Your Flight

We analysed more than 6,000 data points along your route from Lisbon Humberto Delgado Airport, Lisbon to Keflavik International Airport, Reykjavík.

Your Journey Beta

1 hour 40 minutes and 2 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 crossing the North Atlantic Ocean – conditions there 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 47 knots.

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 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 4h 30min
Maximum turbulence expected per segment
Takeoff
Light
0:20-0:49
Light
0:49-1:18
Light
1:18-1:47
Moderate
1:47-2:16
Moderate
2:16-2:45
Light
2:45-3:14
Light
3:14-3:42
Light
3:42-4:10
Smooth
Landing
Smooth
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
LIS
At Departure
13°C (Now)
Scattered • 5 kt • VFR — Clear conditions, no delays expected
Arrival
KEF
At Arrival
-3°C (Now)
Scattered • 15 kt • VFR — Clear conditions, no delays expected
🌙 Evening Flight

Evening and night flights typically offer smoother conditions as thermal activity subsides and the atmosphere stabilizes after sunset.

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.