Your Flight
We analysed more than 11,000 data points along your route from Toronto Lester B. Pearson International Airport, Toronto to Francisco de Sá Carneiro Airport, Porto.
Air Transat
YYZ
OPO
TS764
Air Transat · Live forecast
YYZ
→
OPO
79
Calm Score
"Mostly smooth — one short bumpy section you'll handle."
6h 55m
Duration
3,047 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
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 → OPO
15 pilot reports along this route
14 / 15
Reporting smooth
1 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP EIN12W 4858N04540W 1749 F380 4702N05001W 1819 PORTI MS60 303/104 KT EIDAA DDL XXN 161749 J62A
2m ago
Smooth
ARP TEU18 4845N04322W 1748 F370 4859N04000W 1804 5059N03000W MS51 304/111 KT 9HCCH QXT AME 161749 M95A
3m ago
Smooth
ARP AAL142 4739N05146W 1745 F390 4758N04959W 1754 4858N04000W MS66 292/63 KT N759AN DDL YYT 161745 F58A
6m ago
Smooth
ARP IFA6147 4615N 03422W 1745 F410 M49 288/60 4700N 03000W 1806 4800N 02000W KT DAFAO DDL IG1 161746 F58A
6m ago
Smooth
ARP CLX226 4912N03352W 1744 F370 4929N03000W 1801 5059N02000W MS43 278/38 KT LXVCK QXT AME 161744 F69A
7m ago
AI-powered flight briefing
11,000 data points analyzed
· HIGH confidence
Your Journey Beta
22 minutes, 36 minutes, and 5 hours 40 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.
Mostly Smooth
Overall conditions look mostly smooth with occasional light bumps. Nothing to worry about.
Takeoff
Takeoff should feel a bit bumpy initially, with calm conditions around the airport.
Winds Aloft
Winds at cruising altitude are about 71 knots. These winds are favorable and may get you there up to 46 minutes early.
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 6h 55min
Maximum turbulence expected per segment
Takeoff
Moderate
0:30-1:00
Moderate
1:00-1:30
Light
1:30-2:00
Light
2:00-2:30
Light
2:30-3:00
Light
3:00-3:30
Light
3:30-4:00
Light
4:00-4:29
Light
4:29-4:58
Light
4:58-5:27
Light
5:27-5:56
Moderate
5:56-6:25
Light
Landing
Smooth
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 (250°)
Sky
Overcast
Temperature
7°C
Conditions
MVFR — Reduced visibility, minor delays possible
OPO
Francisco de Sá Carneiro Airport — Arrival
Wind
8 kt (90°)
Sky
NSC
Temperature
18°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.
When
Tomorrow — conditions may change
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.