Your Flight
We analysed more than 20,500 data points along your route from Toronto Lester B. Pearson International Airport, Toronto to Incheon International Airport, Seoul.
Korean Air
YYZ
ICN
KE78
Korean Air · Live forecast
YYZ
→
ICN
93
Calm Score
"A smooth ride ahead — sit back and enjoy."
4h 10m
Duration
5,733 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
Set an alert before your flight
Beta
You still have 6 hours before departure. We'll notify you if this forecast changes.
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.
Right now on your route
Live pilot reports from aircraft flying YYZ → ICN
2 pilot reports along this route
1 / 2
Reporting smooth
1 / 2
Light turbulence
0
Moderate or worse
Latest pilot reports
Light
JHW UA /OV JHW025020/TM 1014/FL160/TP A320/SK TOP180/TA 03/TB LGT CHOP/IC LGT RIME/RM ZOB
15m ago
Smooth
DSV UA /OV GEE290015/TM 1010/FL180/TP E170/TA M19/IC LGT RIME 180-200/RM ZOB
19m ago
AI-powered flight briefing
20,500 data points analyzed
· HIGH confidence
Your Journey Beta
15 minutes and 3 hours 45 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 over the Appalachian Mountains, crossing the Hudson Bay, and crossing the Arctic Ocean – 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 a bit bumpy initially, with calm conditions around the airport.
Winds Aloft
Winds at cruising altitude are about 29 knots. These winds may delay arrival by a few minutes.
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
Flight Timeline 4h 10min
Maximum turbulence expected per segment
Takeoff
Moderate
0:20-0:50
Light
0:50-1:20
Smooth
1:20-1:50
Smooth
1:50-2:20
Light
2:20-2:50
Light
2:50-3:20
Light
3:20-3:50
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
YYZ
Toronto Lester B. Pearson International Airport — Departure
Visibility
10+ mi
Wind
15 kt G25 (280°)
Sky
Broken
Temperature
4°C
Conditions
VFR — Clear conditions, no delays expected
ICN
Incheon International Airport — Arrival
Wind
6 kt (230°)
Sky
NSC
Temperature
15°C
Conditions
VFR — Clear conditions, no delays expected
Your flight details
Departure timing and aircraft information
Afternoon Flight Departure
Time of day
Afternoon Flight
Tip
Afternoon flights may encounter more turbulence due to thermal activity as the sun heats the ground, creating rising air currents.
When
Today
airbus a350-941
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:
- 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.