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

515 minutes (8h 35m)

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. 10 bumpier stretches, about 458 min in total.
  • 0:00-0:30 · Takeoff · moderate bumps (~30 min) Noticeable bumps. The seatbelt sign is likely on.
  • 0:30-0:59 · light bumps (~29 min) Light movement. Drinks may ripple.
  • 0:59-1:28 · moderate bumps (~29 min) Noticeable bumps. The seatbelt sign is likely on.
  • 1:28-1:57 · light bumps (~29 min) Light movement. Drinks may ripple.
  • 1:57-2:26 · moderate bumps (~29 min) Noticeable bumps. The seatbelt sign is likely on.
  • 2:26-2:55 · light bumps (~29 min) Light movement. Drinks may ripple.
  • 2:55-3:24 · smooth
  • 3:24-6:13 · light bumps (~169 min) Light movement. Drinks may ripple.
  • 6:13-6:41 · moderate bumps (~28 min) Noticeable bumps. The seatbelt sign is likely on.
  • 6:41-7:09 · light bumps (~28 min) Light movement. Drinks may ripple.
  • 7:09-7:37 · smooth
  • 7:37-8:35 · Landing · light bumps (~58 min) Light movement. Drinks may ripple.
💙
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 EJM18 5435N02435W 1815 F450 5501N03000W 1838 5401N04000W MS48 210/64 KT N18CA DDL IG1 301815 M72A
1m ago
Smooth
ARP DAL267 5239N04625W 1814 F340 5200N05000W 1835 TUDEP MS54 261/90 KT N801NW DDL IG1 301814 J57A
2m ago
Smooth
ARP UPS207 5235N02220W 1813 F370 5230N02000W 1824 LIMRI MS40 195/70 KT N338UP QXT IGW 301813 F34A
3m ago
Smooth
ARP UAE4PV 5345N03349W 1810 F400 5302N04001W 1840 5032N05001W MS46 263/50 KT A6EOI DDL XXF 301810 J27A
6m ago
Smooth
ARP T7IVL 5033N04518W 1810 F450 5058N04000W 1832 5158N03000W MS54 261/44 KT T7IVL QXT AME 301810 F72A
6m 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

1 hour 15 minutes, 2 hours, and 6 hours 40 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 63 knots. These winds may delay arrival by up to 37 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
Live data from ECMWF global forecast models · 12 atmospheric pressure levels · Updated every 6 hours
Flight Timeline 8h 35min
Maximum turbulence expected per segment
Takeoff
Moderate
0:30-0:59
Light
0:59-1:28
Moderate
1:28-1:57
Light
1:57-2:26
Moderate
2:26-2:55
Light
2:55-3:24
Smooth
3:24-3:53
Light
3:53-4:21
Light
4:21-4:49
Light
4:49-5:17
Light
5:17-5:45
Light
5:45-6:13
Light
6:13-6:41
Moderate
6:41-7:09
Light
7:09-7:37
Smooth
7:37-8:05
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
5 kt (100°)
Sky
Few
Temperature
13°C
Conditions
VFR - Clear conditions, no delays expected
IAD Washington Dulles International Airport - Arrival
Visibility
8 mi
Wind
13 kt G24 (310°)
Sky
Clear
Temperature
23°C
Conditions
VFR - Clear conditions, no delays expected
Your flight details
Departure timing and aircraft information
b763
Category
Wide-Body Aircraft
Size
Large
Comfort
Large, twin-aisle aircraft like this generally provide the smoothest ride through turbulence due to their size, weight, and advanced stabilization systems.
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.