Your Flight
We analysed more than 8,000 data points along your route from Toronto Lester B. Pearson International Airport, Toronto to Keflavik International Airport, Reykjavík.
YYZ
Toronto Lester B. Pearson International Airport
✈
KEF
Keflavik International Airport
Route Information
Departure
YYZ (YYZ)
Distance
4,170.6 km (2,252.0 nautical miles)
Arrival
KEF (KEF)
Estimated Flight Time
321 minutes (5h 21m)
Flight Profile
Cruise Altitude: 39,000 ft (Flight Level 390)
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.
Right now on your route
Live pilot reports from aircraft flying YYZ → KEF
12 pilot reports along this route
12 / 12
Reporting smooth
0 / 12
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP ICE614 6005N04325W 0418 F350 6058N03958W 0433 6258N02959W MS54 349/47 KT TFIAD QXS UAK 020418 J38A
1m ago
Smooth
ARP KLM602 6334N02544W 0418 F390 6200N02000W 0439 BALIX MS47 003/27 KT PHBKM QXS KEF 020418 L04A
1m ago
Smooth
ARP DAL56 5532N06018W 0417 F390 DORYY 0431 5700N05000W MS56 229/23 KT N410DZ DDL IG1 020417 J22A
2m ago
Smooth
ARP ICE38C 6223N04656W 0416 F350 6259N04000W 0442 6359N03000W MS53 323/23 KT TFICC QXS UAK 020416 F47A
3m ago
Smooth
ARP DAL220 5933N05324W 0413 F390 5930N05000W 0426 5900N04000W MS61 254/26 KT N402DX DDL UAK 020413 J98A
6m ago
AI-powered flight briefing
8,000 data points analyzed
· HIGH confidence
Your Journey Beta
Your route takes you over the Appalachian Mountains and crossing the North 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 43 knots. These winds are favorable and may get you there up to 17 minutes early.
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
Flight Timeline 5h 21min
Maximum turbulence expected per segment
Takeoff
Light
0:30-0:59
Light
0:59-1:28
Light
1:28-1:57
Light
1:57-2:26
Light
2:26-2:55
Smooth
2:55-3:24
Smooth
3:24-3:53
Light
3:53-4:22
Light
4:22-4:51
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
YYZ
Toronto Lester B. Pearson International Airport - Departure
Visibility
10+ mi
Wind
4 kt (10°)
Sky
Overcast
Temperature
24°C
Conditions
VFR - Clear conditions, no delays expected
KEF
Keflavik International Airport - Arrival
Wind
12 kt (340°)
Sky
Few
Temperature
10°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:
- 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.