Your Flight
We analysed more than 13,000 data points along your route from London Heathrow Airport to Grantley Adams International.
British Airways
LHR
BGI
BA255
British Airways · Live forecast
LHR
→
BGI
90
Calm Score
"A smooth ride ahead — sit back and enjoy."
8h 50m
Duration
3,645 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
Notifications not available
Your flight departs in less than 6 hours. The forecast is unlikely to change significantly at this point.
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 → BGI
6 pilot reports along this route
6 / 6
Reporting smooth
0 / 6
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP CFG209 4447N02303W 0811 F380 4600N02000W 0829 4800N01500W MS52 193/43 KT DANRJ QXT IGW 270811 J72A
1m ago
Smooth
ARP KLM744 4320N02054W 0808 F350 4400N02000W 0815 4700N01500W MS48 199/34 KT PHBVS QXT EUA 270809 F21A
4m ago
Smooth
ARP TSC603 4921N01139W 0806 F380 KOGAD 0824 5000N02000W MS55 221/55 KT CGUBT QXS ORK 270806 J19A
6m ago
Smooth
ARP TSC516 4702N01042W 0804 F340 4700N01000W 0808 SEPAL MS46 201/37 KT CGOIX QXT IGW 270804 J41A
8m ago
Smooth
ARP KLM767 4450N02317W 0759 F400 4600N02000W 0818 4850N01200W MS52 196/34 KT PHAKF QXT EUA 270759 J94A
13m ago
AI-powered flight briefing
13,000 data points analyzed
· HIGH confidence
Your Journey Beta
5 hours 25 minutes into the flight: Expect more intense turbulence. Keep your seatbelt fastened.
23 minutes and 6 hours 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 crossing the North Atlantic Ocean – 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 a bit bumpy initially, with calm conditions around the airport.
Winds Aloft
Winds at cruising altitude are about 40 knots. These winds may delay arrival by up to 17 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 50min
Maximum turbulence expected per segment
Takeoff
Moderate
0:30-1:00
Moderate
1:00-1:30
Smooth
1:30-2:00
Light
2:00-2:30
Light
2:30-3:00
Light
3:00-3:30
Smooth
3:30-3:59
Smooth
3:59-4:28
Smooth
4:28-4:57
Light
4:57-5:26
Severe
5:26-5:55
Moderate
5:55-6:24
Light
6:24-6:53
Light
6:53-7:22
Smooth
7:22-7:51
Smooth
7:51-8:20
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
10 kt (280°)
Sky
Scattered
Temperature
20°C
Conditions
VFR — Clear conditions, no delays expected
BGI
Grantley Adams International — Arrival
Wind
10 kt (100°)
Sky
Scattered
Temperature
27°C
Conditions
VFR — Clear conditions, no delays expected
Your flight details
Departure timing and aircraft information
Morning Flight Departure
Time of day
Morning Flight
Tip
Morning flights typically experience smoother conditions as the atmosphere is more stable and thermal turbulence hasn't yet developed.
When
Today
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.