Your Flight
We analysed more than 21,500 data points along your route from Washington Dulles International Airport, Dulles to Beijing Capital International Airport, Beijing.
Air China Ltd
IAD
PEK
CA818
Air China Ltd · Live forecast
IAD
→
PEK
94
Calm Score
"A smooth ride ahead — sit back and enjoy."
20h 55m
Duration
6,000 nm
Distance
40,000 ft
Cruise Altitude
HIGH
Confidence
Turbulence comfort along route
Comfort score combines turbulence probability with intensity — higher means rougher
Smooth
Light
Moderate
Severe
Set an alert before your flight
Beta
You still have 21 hours before departure. We'll notify you if this forecast changes.
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 IAD → PEK
4 pilot reports along this route
0 / 4
Reporting smooth
0 / 4
Light turbulence
4
Moderate or worse
Latest pilot reports
Moderate
2G9 UA /OV IHD090010/TM 0108/FL380/TP B752/TB CONS MOD/RM ZOB
16m ago
Moderate
EKN UA /OV ESL240025/TM 0047/FL380/TP B738/TB CONS MOD 380
37m ago
Smooth
EKN UA /OV ESL180025/TM 0044/FL400/TP B738/TB CONS LGT OCNL MOD 400
40m ago
Severe
DCA UUA /OV DCA300015/TM 0043/FL040/TP CRJ7/TB SEV
41m ago
AI-powered flight briefing
21,500 data points analyzed
· HIGH confidence
Your Journey Beta
Your route takes you over the Appalachian Mountains, crossing the Hudson Bay, and crossing the Arctic Ocean – these areas can sometimes cause 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 31 knots. These winds may delay arrival by up to 25 minutes.
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
Flight Timeline 20h 55min
Maximum turbulence expected per segment
Takeoff
Light
0:30-1:00
Light
1:00-1:30
Light
1:30-2:00
Light
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
Smooth
5:00-5:30
Smooth
5:30-6:00
Smooth
6:00-6:30
Smooth
6:30-7:00
Smooth
7:00-7:30
Smooth
7:30-8:00
Smooth
8:00-8:30
Smooth
8:30-9:00
Smooth
9:00-9:30
Smooth
9:30-10:00
Smooth
10:00-10:30
Smooth
10:30-11:00
Smooth
11:00-11:30
Smooth
11:30-12:00
Smooth
12:00-12:30
Smooth
12:30-13:00
Smooth
13:00-13:30
Light
13:30-14:00
Light
14:00-14:30
Smooth
14:30-15:00
Smooth
15:00-15:30
Smooth
15:30-16:00
Light
16:00-16:30
Smooth
16:30-17:00
Smooth
17:00-17:30
Smooth
17:30-18:00
Smooth
18:00-18:29
Light
18:29-18:58
Light
18:58-19:27
Light
19:27-19:56
Light
19:56-20:25
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
IAD
Washington Dulles International Airport — Departure
Visibility
1 mi
Wind
15 kt G24 (280°)
Sky
Broken
Temperature
5°C
Conditions
LIFR — Very poor visibility, significant delays expected
PEK
Beijing Capital International Airport — Arrival
Visibility
4 mi
Wind
8 kt (340°)
Sky
NSC
Temperature
6°C
Conditions
MVFR — Reduced visibility, minor delays possible
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
b748
Category
Wide-Body Aircraft
Size
Large
Comfort
Large, twin-aisle aircraft like this generally provide the smoothest ride through turbulence due to their size, weight, and advanced stabilization systems.
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:
- ECMWF Open Data — Global atmospheric model (wind/temperature at 13 flight levels)
- NOAA Aviation Weather Center — Pilot Reports (PIREPs), SIGMETs/AIRMETs, TAFs
- NOAA Space Weather Prediction Center — Aurora forecasts for polar routes
- AviationStack API — Flight schedules and airline operational data
Disclaimer: This forecast is for informational purposes only. Always consult official aviation weather sources and follow ATC guidance.