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
4 pilot reports along this route
4 / 4
Reporting smooth
0 / 4
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP AUA2R 5602N05702W 0120 F390 DORYY 0120 5700N05000W MS57 000/13 KT OELPG DDL YYR 010120 L79A
12m ago
Smooth
ARP DAL152 5950N05325W 0118 F370 6000N05000W 0131 6000N04000W MS57 302/33 KT N826NW QXS UAK 010118 J16A
14m ago
Smooth
ARP DAL160 5950N05328W 0118 F390 6000N05000W 0130 6000N04000W MS53 330/23 KT N518DZ DDL UAK 010118 J52A
14m ago
Smooth
ARP KLM120 5808N06041W 0112 F390 5824N05821W 0121 5900N05000W MS59 240/35 KT PHAKA QXS YHO 010112 J04A
20m ago
AI-powered flight briefing
8,000 data points analyzed
· HIGH confidence
Your Journey Beta
30 minutes, 1 hour 10 minutes, and 1 hour 30 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 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 34 knots. These winds are favorable and may get you there a few 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
Moderate
0:59-1:28
Moderate
1:28-1:57
Moderate
1:57-2:26
Light
2:26-2:55
Light
2:55-3:24
Smooth
3:24-3:53
Light
3:53-4:22
Smooth
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
8 kt (210°)
Sky
Few
Temperature
27°C
Conditions
VFR - Clear conditions, no delays expected
KEF
Keflavik International Airport - Arrival
Wind
10 kt (20°)
Sky
NSC
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.