Your Flight
We analysed more than 10,000 data points along your route from London Heathrow Airport, London to Logan International, Boston.
British Airways
LHR
BOS
BA239
British Airways · Live forecast
LHR
→
BOS
83
Calm Score
"A smooth ride ahead — sit back and enjoy."
8h 45m
Duration
2,830 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
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This flight has already departed.
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 LHR → BOS
15 pilot reports along this route
15 / 15
Reporting smooth
0 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP AFR327 4828N05457W 2312 F370 4848N05204W 2324 4900N05000W MS55 263/93 KT FGSPU QXS YJT 172312 F17A
2m ago
Smooth
ARP CFG017 5126N04815W 2311 F380 5300N04000W 2346 5400N03000W MS52 266/84 KT DANRO QXT IGW 172311 J88A
3m ago
Smooth
EWB UA /OV EWB/TM 2310/FLDURC/TP PC12/SK BASES 010
4m ago
Smooth
ARP AAL758 4839N05443W 2309 F390 ELSIR 2322 4959N04959W MS53 261/70 KT N817AN DDL YDF 172309 L41A
5m ago
Smooth
ARP DAH2701 4748N05459W 2308 F390 4757N05202W 2321 4800N05000W MS56 262/78 KT 7TVJE DDL X1A 172308 J55A
6m ago
AI-powered flight briefing
10,000 data points analyzed
· HIGH confidence
Your Journey Beta
Your route takes you crossing the North Atlantic Ocean and over the Appalachian Mountains – these areas 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 59 knots. These winds may delay arrival by up to 45 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 8h 45min
Maximum turbulence expected per segment
Takeoff
Light
0:30-1:00
Light
1:00-1:29
Light
1:29-1:58
Light
1:58-2:27
Smooth
2:27-2:56
Light
2:56-3:25
Light
3:25-3:54
Light
3:54-4:23
Light
4:23-4:52
Light
4:52-5:21
Light
5:21-5:50
Light
5:50-6:19
Light
6:19-6:48
Light
6:48-7:17
Light
7:17-7:46
Light
7:46-8:15
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
LHR
London Heathrow Airport — Departure
Wind
12 kt (230°)
Sky
Scattered
Temperature
13°C
Conditions
MVFR — Reduced visibility, minor delays possible
BOS
Logan International — Arrival
Wind
6 kt (50°)
Sky
Broken
Temperature
12°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
boeing 787-10 dreamliner
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.