LHR
London Heathrow Airport
✈
IAD
Washington Dulles International Airport
Distance
3,187 nm
Altitude
40,000 ft
Est. Duration
7h 25m
Route Information
Departure

LHR (LHR)

Distance

5,901.8 km (3,186.7 nautical miles)

Arrival

IAD (IAD)

Flight Time

495 minutes (8h 15m)

Flight Profile

Cruise Altitude: 40,000 ft (Flight Level 400)

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. 5 bumpier stretches, about 495 min in total.
  • 0:00-0:59 · Takeoff · moderate bumps (~59 min) Noticeable bumps. The seatbelt sign is likely on.
  • 0:59-4:51 · light bumps (~232 min) Light movement. Drinks may ripple.
  • 4:51-5:49 · moderate bumps (~58 min) Noticeable bumps. The seatbelt sign is likely on.
  • 5:49-7:45 · light bumps (~116 min) Light movement. Drinks may ripple.
  • 7:45-8:15 · 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.
Right now on your route
Live pilot reports from aircraft flying LHR → IAD
15 pilot reports along this route
15 / 15
Reporting smooth
0 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP ETD11B 5330N01059W 1320 F380 DOGAL 1339 5500N02000W MS57 188/96 KT A6XWJ QXS ORK 301320 J12A
2m ago
Smooth
ARP AAL733 5352N01008W 1320 F350 RESNO 1343 5600N02000W MS49 195/88 KT N799AN QXS DUB 301320 F32A
2m ago
Smooth
ARP CFG116 5431N02245W 1320 F350 5531N03000W 1354 5531N04000W MS47 207/79 KT DANRH QXT IGW 301320 J24A
2m ago
Smooth
ARP VIR156T 5304N03559W 1319 F390 5258N03000W 1343 5228N02001W MS45 281/40 KT GVNEW DDL XXN 301319 L01A
3m ago
Smooth
ARP FDX30 5150N03233W 1319 F350 5200N03000W 1330 5200N02000W MS45 274/44 KT N857FD QXT AME 301319 F61A
3m ago
AI-powered flight briefing
11,500 data points analyzed · HIGH confidence
Your Flight

We analysed more than 11,500 data points along your route from London Heathrow Airport, London to Washington Dulles International Airport, Dulles.

Your Journey Beta

49 minutes, 5 hours, and 5 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 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 a bit bumpy initially, with calm conditions around the airport.

Winds Aloft

Winds at cruising altitude are about 66 knots. These winds may delay arrival by up to 43 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 8h 15min
Maximum turbulence expected per segment
Takeoff
Moderate
0:30-0:59
Moderate
0:59-1:28
Light
1:28-1:57
Light
1:57-2:26
Light
2:26-2:55
Light
2:55-3:24
Light
3:24-3:53
Light
3:53-4:22
Light
4:22-4:51
Light
4:51-5:20
Moderate
5:20-5:49
Moderate
5:49-6:18
Light
6:18-6:47
Light
6:47-7:16
Light
7:16-7:45
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
15°C
Conditions
VFR - Clear conditions, no delays expected
IAD Washington Dulles International Airport - Arrival
Visibility
9 mi
Wind
3 kt (190°)
Sky
Scattered
Temperature
11°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 → IAD, with soft clouds where today's forecast shows bumpier air. Nothing to crash into.