United Airlines SEA ORD UA747
United Airlines
FLIGHT
UA747
SEA
Seattle–Tacoma International Airport
06:00
03 Mar
Now: --:-- PS
4 h 8 m
ORD
Chicago O'Hare International Airport
12:08
03 Mar
Now: --:-- CS
Aircraft: a21n Altitude: 35,000ft (10.7km) Distance: 1,491 nm Duration: 4 h 8 m
AIRCRAFT
a21n
ALTITUDE
35,000ft
DISTANCE
1,491 nm
DURATION
4 h 8 m
Times and gates subject to change. Verify with airline.
Turbulence Comfort Along Route Comfort View
Comfort Score: Combines turbulence probability (GTG forecast) with intensity (ZTI analysis). High scores indicate both high probability AND high intensity turbulence.
Smooth
Light
Moderate
Severe
Flight Smoothness Score
8.0 /10
Smoothness
Smooth Flight
23%
Smooth
75%
Light
2%
Moderate

Notifications not available
Your flight departs in less than 6 hours. The forecast is unlikely to change significantly at this point.

AI-Powered Flight Briefing
📊 5,500 data points analyzed HIGH Confidence
Your Flight

We analysed more than 5,500 data points along your route from Seattle–Tacoma International Airport, Seattle to Chicago O'Hare International Airport, Chicago.

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 over the Rocky Mountains – conditions there 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 possible light bumps, with calm conditions around the airport.

Winds Aloft

Winds at cruising altitude are about 54 knots. These winds are favorable and may get you there up to 18 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 proprietary turbulence prediction algorithm combining atmospheric Richardson Number, wind shear analysis, temperature gradients, and geomagnetic activity for precise, real-time forecasting. Learn more
Live data from ECMWF global forecast models • 12 atmospheric pressure levels analyzed • Updated every 6 hours
Flight Timeline 4h 08min
Maximum turbulence expected per segment
Takeoff
Light
0:20-0:50
Light
0:50-1:20
Light
1:20-1:50
Light
1:50-2:20
Light
2:20-2:50
Light
2:50-3:19
Light
3:19-3:48
Moderate
Landing
Light
Smooth
Light
Moderate
Severe
Longer bars indicate higher turbulence intensity. Values shown are the maximum for each time segment.
Turbulence Metrics ZTI and EDR (scaled)
ZTI Scale
Smooth
<12
Light
12-30
Moderate
30-45
Severe
>45
EDR Scale
Smooth
<6
Light
6-24
Moderate
24-42
Severe
>42

Airport Weather
Departure
SEA
At Departure
9°C (Now)
Overcast • 4 kt • VFR — Clear conditions, no delays expected
Arrival
ORD
At Arrival
1°C (Now)
Broken • 7 kt • MVFR — Reduced visibility, minor delays possible
🌤️ Afternoon Flight

Afternoon flights may encounter more turbulence due to thermal activity as the sun heats the ground, creating rising air currents.

Narrow-Body Aircraft (Medium)

Single-aisle mainline jets like this offer a comfortable ride. While you may feel turbulence more than on wide-body aircraft, they are engineered to handle it smoothly.

Looking for more detailed analysis?

Data Sources & Our Approach
ZeroTurb's Custom Algorithm: We've developed a proprietary ZeroTurb Index (ZTI) algorithm that combines three meteorological indices weighted by their predictive accuracy. This gives 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.

How accurate are turbulence alerts? Alerts are based on updated forecast models and pilot reports, and can change as departure approaches.