Your Flight
We analysed more than 12,000 data points along your route from Incheon International Airport, Seoul to Ted Stevens Anchorage International Airport, Anchorage.
Ups
ICN
ANC
5X99
Ups · Live forecast
ICN
→
ANC
Also sold as:
79
Calm Score
"Mostly smooth — one short bumpy section you'll handle."
32h 10m
Duration
3,292 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
12,000 data points analyzed
· HIGH confidence
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 Sea of Japan, crossing the Bering Sea, and over the Alaska Range – these areas can sometimes cause 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 52 knots. These winds are favorable and may get you there up to 23 minutes early.
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
Flight Timeline 32h 10min
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
Smooth
2:30-3:00
Light
3:00-3:30
Light
3:30-4:00
Light
4:00-4:30
Light
4:30-5:00
Light
5:00-5:30
Light
5:30-6:00
Light
6:00-6:30
Light
6:30-7:00
Light
7:00-7:30
Light
7:30-8:00
Light
8:00-8:30
Light
8:30-9:00
Light
9:00-9:30
Light
9:30-10:00
Light
10:00-10:30
Moderate
10:30-11:00
Smooth
11:00-11:30
Light
11:30-12:00
Light
12:00-12:30
Light
12:30-13:00
Light
13:00-13:30
Light
13:30-14:00
Light
14:00-14:30
Light
14:30-15:00
Light
15:00-15:30
Light
15:30-16:00
Smooth
16:00-16:30
Light
16:30-17:00
Moderate
17:00-17:30
Light
17:30-18:00
Moderate
18:00-18:30
Moderate
18:30-19:00
Moderate
19:00-19:30
Light
19:30-20:00
Light
20:00-20:30
Moderate
20:30-21:00
Light
21:00-21:30
Light
21:30-22:00
Light
22:00-22:29
Light
22:29-22:58
Light
22:58-23:27
Light
23:27-23:56
Light
23:56-24:25
Light
24:25-24:54
Light
24:54-25:23
Light
25:23-25:52
Light
25:52-26:21
Smooth
26:21-26:50
Smooth
26:50-27:19
Smooth
27:19-27:48
Smooth
27:48-28:17
Smooth
28:17-28:46
Smooth
28:46-29:15
Light
29:15-29:44
Light
29:44-30:13
Light
30:13-30:42
Light
30:42-31:11
Light
31:11-31:40
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
ICN
Incheon International Airport — Departure
Wind
7 kt (290°)
Sky
Broken
Temperature
31°C
Conditions
VFR — Clear conditions, no delays expected
ANC
Ted Stevens Anchorage International Airport — Arrival
Wind
12 kt (150°)
Sky
Overcast
Temperature
11°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:
- ECMWF Open Data — Global atmospheric model (wind/temperature at 13 flight levels)
- NOAA Aviation Weather Center — Pilot Reports (PIREPs), SIGMETs/AIRMETs, TAFs
- NOAA Space Weather Prediction Center — Aurora forecasts for polar routes
- AviationStack API — Flight schedules and airline operational data
Disclaimer: This forecast is for informational purposes only. Always consult official aviation weather sources and follow ATC guidance.