Air Canada YYZ PRG AC934
Air Canada · Live forecast
YYZ → PRG
AC934 · Jul 17, 2026 · 20:45 ED
85
Calm Score
"A smooth ride ahead — sit back and enjoy."
8h 5m
Duration
3,609 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 20 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 → PRG
14 pilot reports along this route
14 / 14
Reporting smooth
0 / 14
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP UPS232 5650N01222W 0407 F320 AGORI 0410 5800N02000W MS45 336/18 KT N351UP QXS BRR 170407 F56A
5m ago
Smooth
ARP MSR947 5559N01324W 0405 F360 BILTO 0413 5630N02000W MS54 319/10 KT SUGGH DDL BLY 170405 J10A
7m ago
Smooth
ARP UAL83 5607N01045W 0405 F380 5602N01400W 0419 PIKIL MS57 348/15 KT N29968 DDL SYY 170405 L83A
7m ago
Smooth
ARP ELY001 5543N01314W 0405 F360 PIKIL 0413 5600N02000W MS54 321/7 KT 4XECB QXS BLY 170405 F24A
7m ago
Smooth
ARP UPS232 5637N01137W 0403 F320 AGORI 0410 5800N02000W MS45 321/14 KT N351UP QXS BRR 170403 F53A
9m ago
AI-powered flight briefing
13,000 data points analyzed · HIGH confidence
Your Flight

We analysed more than 13,000 data points along your route from Toronto Lester B. Pearson International Airport, Toronto to Václav Havel Airport Prague, Prague.

Your Journey Beta

4 hours and 4 hours 50 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 North Atlantic Ocean, and over the Scottish Highlands – 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 smooth with possible light bumps, with calm conditions around the airport.

Winds Aloft

Winds at cruising altitude are about 39 knots. These winds are favorable and may get you there up to 14 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
Live data from ECMWF global forecast models · 12 atmospheric pressure levels · Updated every 6 hours
Flight Timeline 8h 05min
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
Smooth
2:26-2:55
Light
2:55-3:23
Light
3:23-3:51
Light
3:51-4:19
Moderate
4:19-4:47
Light
4:47-5:15
Moderate
5:15-5:43
Light
5:43-6:11
Smooth
6:11-6:39
Smooth
6:39-7:07
Light
7:07-7:35
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
7 mi
Wind
8 kt (150°)
Sky
Few
Temperature
22°C
Conditions
VFR — Clear conditions, no delays expected
PRG Václav Havel Airport Prague — Arrival
Wind
4 kt (220°)
Sky
Scattered
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:

Disclaimer: This forecast is for informational purposes only. Always consult official aviation weather sources and follow ATC guidance.

Fly this route, calmly Game · Beta A calming mini-game, not a forecast. Glide YYZ → PRG through soft clouds, nothing to crash into.