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
93
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
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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 they don't put the aircraft in danger. Many passengers feel exactly the same way.
Right now on your route
Live pilot reports from aircraft flying LHR → BGI
4 pilot reports along this route
4 / 4
Reporting smooth
0 / 4
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP MBIZZ 4859N00854W 1822 F450 4836N00900W 1825 BEGAS MS60 289/68 KT MBIZZ DDL BYT 101822 F09A
16m ago
Smooth
ARP TOM5NB 4854N00853W 1822 F430 4836N00900W 1824 BEGAS MS59 291/89 KT GTUIA DDL BYT 101822 L93A
16m ago
Smooth
ARP VIR165 4511N01936W 1819 F370 4500N02000W 1822 4031N03001W MS51 268/42 KT GVEII DDL X0E 101819 J73A
19m ago
Smooth
ARP FBU24B 4510N02148W 1805 F380 4302N03001W 1856 4032N04001W MS52 254/49 KT FHREU QXT EUA 101805 J53A
33m ago
AI-powered flight briefing
13,000 data points analyzed
· HIGH confidence
Your Journey Beta
27 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 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 34 knots. These winds may delay arrival by up to 20 minutes.
Landing
Landing should feel smooth 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
Light
1:00-1:30
Light
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
Smooth
4:57-5:26
Smooth
5:26-5:55
Smooth
5:55-6:24
Smooth
6:24-6:53
Smooth
6:53-7:22
Smooth
7:22-7:51
Light
7:51-8:20
Light
Landing
Smooth
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 (220°)
Sky
Scattered
Temperature
18°C
Conditions
VFR - Clear conditions, no delays expected
BGI
Grantley Adams International - Arrival
Wind
15 kt (110°)
Sky
Scattered
Temperature
30°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.