Delta Air Lines SEA PDX DL3918
Delta Air Lines · Live forecast
SEA → PDX
DL3918 · Mar 15, 2026 · 15:55 PD
79
Calm Score
"Mostly smooth — one short bumpy section you'll handle."
1h 0m
Duration
112 nm
Distance
24,000 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 you'll be completely safe. 1 in 3 passengers feel exactly like you.
Right now on your route
Live pilot reports from aircraft flying SEA → PDX
5 pilot reports along this route
4 / 5
Reporting smooth
0 / 5
Light turbulence
1
Moderate or worse
Latest pilot reports
Smooth
PAE UA /OV PAE010002/TM 2308/FL021/TP C172/WX 3SM/RM FOG NORTH OF PAE
7m ago
Smooth
EUG UA /OV EUG070020/TM 2303/FL300/TP E75L/RM SMOOTH /ZSE
12m ago
Moderate
PAE UA /OV PAE/TM 2300/FL050/TP M20P/TB MDT 050 LGT-MDT 040
15m ago
Smooth
PDX UA /OV PDX045015/TM 2255/FL040/TP C172/IC TRACE ICE 040
20m ago
Smooth
VR UUA /OV CZBB /TM 2245 /FLUNKN /TP C172 /RM NUMEROUS ACFT REPORT WINDSHEAR RWY 13 PERF +/-. DOWNDRAFTS DEP RWY 13.
30m ago
AI-powered flight briefing
500 data points analyzed · HIGH confidence
Your Flight

We analysed more than 500 data points along your route from Seattle–Tacoma International Airport, Seattle to Portland International Airport, Portland.

Your Journey Beta

Your route takes you directly to your destination.

Mostly Smooth

Overall conditions look mostly smooth with occasional light bumps. Nothing to worry about.

Takeoff

Takeoff should feel smooth with possible light bumps, with calm conditions around the airport.

Winds Aloft

Winds at cruising altitude are about 78 knots.

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
Live data from ECMWF global forecast models · 12 atmospheric pressure levels · Updated every 6 hours
Flight Timeline 1h 00min
Maximum turbulence expected per segment
Takeoff
Light
0:15-0:30
Smooth
0:30-0:45
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
SEA Seattle–Tacoma International Airport — Departure
Wind
4 kt (30°)
Sky
Overcast
Temperature
8°C
Conditions
VFR — Clear conditions, no delays expected
PDX Portland International Airport — Arrival
Wind
7 kt (120°)
Sky
Overcast
Temperature
10°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
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.