PVG
Shanghai Pudong International Airport
✈
SEA
Seattle–Tacoma International Airport
Distance
4,961 nm
Altitude
39,000 ft
Est. Duration
11h 22m
Route Information
Departure

PVG (PVG)

Distance

9,187.8 km (4,961.0 nautical miles)

Arrival

SEA (SEA)

Flight Time

2111 minutes (11h 11m)

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.
AI-powered flight briefing
18,000 data points analyzed · HIGH confidence
Your Flight

We analysed more than 18,000 data points along your route from Shanghai Pudong International Airport, Shanghai (Pudong) to Seattle–Tacoma International Airport, Seattle.

Your Journey Beta

A brief bumpy patch may occur during cruise. It's nothing to worry about - just keep your seatbelt fastened.

Your route takes you crossing the North Pacific Ocean and crossing the North Pacific 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 smooth, 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 80 minutes early.

Landing

Landing should feel a bit bumpy on descent 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 35h 11min
Maximum turbulence expected per segment
Takeoff
Smooth
0:30-1:00
Light
1:00-1:30
Light
1:30-2:00
Light
2:00-2:30
Smooth
2:30-3:00
Smooth
3:00-3:30
Light
3:30-4:00
Smooth
4:00-4:30
Light
4:30-5:00
Light
5:00-5:30
Light
5:30-6:00
Light
6:00-6:30
Light
6:30-7:00
Light
7:00-7:30
Light
7:30-8:00
Light
8:00-8:30
Light
8:30-9:00
Light
9:00-9:30
Light
9:30-10:00
Light
10:00-10:30
Light
10:30-11:00
Light
11:00-11:30
Light
11:30-12:00
Light
12:00-12:30
Light
12:30-13:00
Light
13:00-13:30
Light
13:30-14:00
Light
14:00-14:30
Light
14:30-15:00
Light
15:00-15:30
Light
15:30-16:00
Smooth
16:00-16:30
Light
16:30-17:00
Light
17:00-17:30
Light
17:30-18:00
Light
18:00-18:30
Light
18:30-19:00
Light
19:00-19:30
Light
19:30-20:00
Light
20:00-20:30
Light
20:30-21:00
Light
21:00-21:30
Light
21:30-22:00
Light
22:00-22:30
Light
22:30-23:00
Light
23:00-23:30
Light
23:30-24:00
Light
24:00-24:30
Light
24:30-25:00
Light
25:00-25:30
Light
25:30-25:59
Light
25:59-26:28
Light
26:28-26:57
Light
26:57-27:26
Light
27:26-27:55
Light
27:55-28:24
Light
28:24-28:53
Light
28:53-29:22
Light
29:22-29:51
Moderate
29:51-30:20
Light
30:20-30:49
Light
30:49-31:18
Light
31:18-31:47
Moderate
31:47-32:16
Light
32:16-32:45
Light
32:45-33:14
Light
33:14-33:43
Light
33:43-34:12
Light
34:12-34:41
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
PVG Shanghai Pudong International Airport - Departure
Wind
12 kt (40°)
Sky
Scattered
Temperature
26°C
Conditions
VFR - Clear conditions, no delays expected
SEA Seattle–Tacoma International Airport - Arrival
Wind
3 kt (350°)
Sky
Overcast
Temperature
13°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:

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 PVG → SEA through soft clouds, nothing to crash into.