SEA
Seattle–Tacoma International Airport
✈
BFI
Boeing Field/King County International Airport
Distance
5 nm
Altitude
-
Est. Duration
0h 22m
Route Information
Departure

SEA (SEA)

Distance

9.9 km (5.4 nautical miles)

Arrival

BFI (BFI)

Estimated Flight Time

22 minutes (0h 22m)

Flight Profile

Cruise Altitude: too short to reach cruise

Route calculated using great circle navigation

Too short for a turbulence forecast

Forecastable turbulence (jet streams and clear-air turbulence) forms high up, on longer flights. A hop this short barely reaches cruise altitude, so there is almost nothing to predict, and short flights are among the smoothest you can take. Any bumps are usually brief, during climb or descent, from local winds near the ground.

💙
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 SEA → BFI
2 pilot reports along this route
1 / 2
Reporting smooth
0 / 2
Light turbulence
1
Moderate or worse
Latest pilot reports
Moderate
SEA UA /OV SEA040025/TM 1221/FL090/TP PC12/TA M02/TB MDT 090-080/IC LGT RM
25m ago
Smooth
EAT UA /OV EAT/TM 1220/FL170/TP A320/TB NEG/RM ZSE
26m ago
AI-powered flight briefing
100 data points analyzed
Your Flight

We analysed more than 100 data points along your route from Seattle–Tacoma International Airport, Seattle to Boeing Field/King County International Airport, Seattle.

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 calm conditions around the airport.

Winds Aloft

Winds at cruising altitude are about 46 knots.

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
Airport conditions
Live weather at departure and arrival
SEA Seattle–Tacoma International Airport - Departure
Visibility
9 mi
Wind
6 kt (50°)
Sky
Overcast
Temperature
8°C
Conditions
VFR - Clear conditions, no delays expected
BFI Boeing Field/King County International Airport - Arrival
Visibility
9 mi
Wind
3 kt (100°)
Sky
Overcast
Temperature
9°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. Glide SEA → BFI, with soft clouds where today's forecast shows bumpier air. Nothing to crash into.