Your Flight
We analysed more than 8,000 data points along your route from Logan International, Boston to Seattle–Tacoma International Airport, Seattle.
Delta Air Lines
BOS
SEA
DL324
Delta Air Lines · Live forecast
BOS
→
SEA
76
Calm Score
"Mostly smooth — one short bumpy section you'll handle."
6h 28m
Duration
2,162 nm
Distance
40,000 ft
Cruise Altitude
VERY 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 BOS → SEA
10 pilot reports along this route
5 / 10
Reporting smooth
2 / 10
Light turbulence
3
Moderate or worse
Latest pilot reports
Smooth
CTB UA /OV CTB262027/TM 1610/FL430/TP E55P/RM MTN WAVE +220FT /ZLC
19m ago
Smooth
PAE UA /OV PAE160002/TM 1605/FL012/TP E175/SK BKN
24m ago
Light
HFD UA /OV HFD196012/TM 1604/FL155/TP E145/TB INTMT LGT CHOP/RM TOPS 110
25m ago
Light
RME UA /OV UCA/TM 1604/FL320/TP A321/TB CONS LGT CAT 320 INMT LGT CHOP 340
25m ago
Smooth
SEA UA /OV SEA162008/TM 1604/FL080/TP B738/SK BASES 075
25m ago
AI-powered flight briefing
8,000 data points analyzed
· VERY HIGH confidence
Your Journey Beta
2 hours 20 minutes and 4 hours 30 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 over the Appalachian Mountains and over the Rocky Mountains – these areas can sometimes cause light turbulence.
Mostly Smooth
Overall conditions look mostly smooth with occasional light bumps. Nothing to worry about.
Takeoff
Takeoff should feel a bit bumpy initially, with calm conditions around the airport.
Winds Aloft
Winds at cruising altitude are about 94 knots. These winds may delay arrival by up to 28 minutes.
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
Flight Timeline 6h 28min
Maximum turbulence expected per segment
Takeoff
Moderate
0:30-1:00
Light
1:00-1:30
Light
1:30-2:00
Light
2:00-2:30
Moderate
2:30-3:00
Light
3:00-3:30
Light
3:30-4:00
Light
4:00-4:30
Moderate
4:30-5:00
Light
5:00-5:29
Light
5:29-5:58
Moderate
Landing
Moderate
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
BOS
Logan International — Departure
Visibility
6 mi
Wind
13 kt (170°)
Sky
Overcast
Temperature
13°C
Conditions
IFR — Low visibility, delays likely
SEA
Seattle–Tacoma International Airport — Arrival
Visibility
5 mi
Wind
7 kt (190°)
Sky
Overcast
Temperature
7°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
airbus a321-271nx
Category
Narrow-Body Aircraft
Size
Medium
Comfort
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.
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.