LHR
London Heathrow Airport
✈
ICN
Incheon International Airport
Distance
4,785 nm
Altitude
39,000 ft
Est. Duration
10h 58m
Route Information
Departure

LHR (LHR)

Distance

8,861.2 km (4,784.7 nautical miles)

Arrival

ICN (ICN)

Flight Time

765 minutes (12h 45m)

Flight Profile

Cruise Altitude: 39,000 ft (Flight Level 390)

Route calculated using great circle navigation

Turbulence comfort along route
Comfort score combines turbulence probability with intensity, higher means rougher
Smooth Light Moderate Severe
Your flight, stretch by stretch
Some bumps expected. 7 bumpier stretches, about 736 min in total.
  • 0:00-5:29 · Takeoff · light bumps (~329 min) Light movement. Drinks may ripple.
  • 5:29-5:58 · moderate bumps (~29 min) Noticeable bumps. The seatbelt sign is likely on.
  • 5:58-7:25 · light bumps (~87 min) Light movement. Drinks may ripple.
  • 7:25-7:54 · smooth
  • 7:54-11:17 · light bumps (~203 min) Light movement. Drinks may ripple.
  • 11:17-11:46 · moderate bumps (~29 min) Noticeable bumps. The seatbelt sign is likely on.
  • 11:46-12:15 · light bumps (~29 min) Light movement. Drinks may ripple.
  • 12:15-12:45 · Landing · moderate bumps (~30 min) Noticeable bumps. The seatbelt sign is likely on.
💙
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.
AI-powered flight briefing
17,000 data points analyzed · HIGH confidence
Your Flight

We analysed more than 17,000 data points along your route from London Heathrow Airport, London to Incheon International Airport, Seoul.

Your Journey Beta

5 hours 35 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 Sea – 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 smooth with possible light bumps, with calm conditions around the airport.

Winds Aloft

Winds at cruising altitude are about 55 knots. These winds are favorable and may get you there up to 39 minutes early.

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 12h 45min
Maximum turbulence expected per segment
Takeoff
Light
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
Light
3:30-4:00
Light
4:00-4:30
Light
4:30-5:00
Light
5:00-5:29
Light
5:29-5:58
Moderate
5:58-6:27
Light
6:27-6:56
Light
6:56-7:25
Light
7:25-7:54
Smooth
7:54-8:23
Light
8:23-8:52
Light
8:52-9:21
Light
9:21-9:50
Light
9:50-10:19
Light
10:19-10:48
Light
10:48-11:17
Light
11:17-11:46
Moderate
11:46-12:15
Light
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
LHR London Heathrow Airport - Departure
Wind
5 kt (100°)
Sky
Few
Temperature
12°C
Conditions
VFR - Clear conditions, no delays expected
ICN Incheon International Airport - Arrival
Visibility
6 mi
Wind
12 kt (320°)
Sky
Scattered
Temperature
14°C
Conditions
VFR - Clear conditions, no delays expected
Your flight details
Departure timing and aircraft information
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. Glide LHR → ICN, with soft clouds where today's forecast shows bumpier air. Nothing to crash into.