Delta Air Lines PVG SEA DL280
Delta Air Lines · Live forecast
PVG → SEA
DL280 · Aug 18, 2026 · 17:30 CS
84
Calm Score
"A smooth ride ahead - sit back and enjoy."
35h 11m
Duration
4,961 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

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💙
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 PVG → SEA
1 pilot report along this route
1 / 1
Reporting smooth
0 / 1
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ADQ UA /OV PADQ/TM 2255/FLUNKN/TP E545/SK SCT023-TOP029/RM DURD RWY 26
38m ago
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

6 hours 20 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 crossing the North Pacific Ocean and crossing the North Pacific 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 calm conditions around the airport.

Winds Aloft

Winds at cruising altitude are about 41 knots. These winds are favorable and may get you there up to 39 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
Smooth
1:00-1:30
Smooth
1:30-2:00
Smooth
2:00-2:30
Light
2:30-3:00
Smooth
3:00-3:30
Smooth
3:30-4:00
Smooth
4:00-4:30
Smooth
4:30-5:00
Light
5:00-5:30
Light
5:30-6:00
Light
6:00-6:30
Moderate
6:30-7:00
Moderate
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
Smooth
10:30-11:00
Light
11:00-11:30
Light
11:30-12:00
Smooth
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
Light
16:00-16:30
Light
16:30-17:00
Light
17:00-17:30
Moderate
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
Smooth
21:30-22:00
Smooth
22:00-22:30
Smooth
22:30-23:00
Smooth
23:00-23:30
Smooth
23:30-24:00
Light
24:00-24:30
Light
24:30-25:00
Light
25:00-25:30
Light
25:30-25:59
Smooth
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
Moderate
30:49-31:18
Light
31:18-31:47
Smooth
31:47-32:16
Smooth
32:16-32:45
Smooth
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
8 kt (120°)
Sky
Scattered
Temperature
28°C
Conditions
VFR - Clear conditions, no delays expected
SEA Seattle–Tacoma International Airport - Arrival
Wind
6 kt (240°)
Sky
Broken
Temperature
25°C
Conditions
VFR - Clear conditions, no delays expected
Your flight details
Departure timing and aircraft information
Morning Flight Departure
Time of day
Morning Flight
Tip
Morning flights typically experience smoother conditions as the atmosphere is more stable and thermal turbulence hasn't yet developed.
When
Today
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.