American Airlines LHR MIA AA9818
American Airlines · Live forecast
LHR → MIA
AA9818 · Jun 16, 2026 · 21:00 BS
80
Calm Score
"A smooth ride ahead — sit back and enjoy."
10h 10m
Duration
3,839 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 LHR → MIA
15 pilot reports along this route
15 / 15
Reporting smooth
0 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP RAM208M 4854N03927W 2039 F400 4900N04000W 2042 5000N05000W MS52 304/55 KT FHETE QXT EUA 162039 J96A
2m ago
Smooth
ARP DAH2703 4858N03929W 2038 F370 4800N03000W 2121 4700N02000W MS53 300/74 KT 7TVLB DDL XXH 162038 J69A
3m ago
Smooth
ARP TAP209K 4510N04814W 2038 F400 4501N05000W 2050 4454N05148W MS61 270/93 KT CSTUP DDL XXH 162038 J22A
3m ago
Smooth
ARP N78KN 4951N03620W 2035 F410 5100N03000W 2103 5200N02000W MS46 301/35 KT N78KN DDL XXH 162035 F73A
6m ago
Smooth
ARP AIC102 4902N03924W 2033 F350 4900N03000W 2114 5000N02000W MS52 302/74 KT VTJRH QXT AME 162034 J05A
8m ago
AI-powered flight briefing
14,000 data points analyzed · VERY HIGH confidence
Your Flight

We analysed more than 14,000 data points along your route from London Heathrow Airport, London to Miami International Airport, Miami.

Your Journey Beta

6 hours, 6 hours 15 minutes, and 8 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 crossing the North Atlantic Ocean – conditions there 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 57 knots. These winds may delay arrival by up to 50 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
Live data from ECMWF global forecast models · 12 atmospheric pressure levels · Updated every 6 hours
Flight Timeline 10h 10min
Maximum turbulence expected per segment
Takeoff
Moderate
0:30-0:59
Light
0:59-1:28
Light
1:28-1:57
Light
1:57-2:26
Light
2:26-2:55
Light
2:55-3:24
Smooth
3:24-3:53
Light
3:53-4:22
Light
4:22-4:51
Light
4:51-5:20
Light
5:20-5:49
Light
5:49-6:18
Moderate
6:18-6:47
Light
6:47-7:16
Light
7:16-7:45
Light
7:45-8:14
Light
8:14-8:43
Moderate
8:43-9:12
Light
9:12-9:40
Smooth
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
10 kt (230°)
Sky
Scattered
Temperature
20°C
Conditions
VFR — Clear conditions, no delays expected
MIA Miami International Airport — Arrival
Wind
5 kt G24 (150°)
Sky
Few
Temperature
34°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
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:

Disclaimer: This forecast is for informational purposes only. Always consult official aviation weather sources and follow ATC guidance.

Fly this route, calmly Game · Beta A calming mini-game, not a forecast. Glide LHR → MIA through soft clouds, nothing to crash into.