LHR
London Heathrow Airport
✈
PHL
Philadelphia International Airport
Distance
3,072 nm
Altitude
40,000 ft
Est. Duration
7h 10m
Route Information
Departure

LHR (LHR)

Distance

5,689.8 km (3,072.2 nautical miles)

Arrival

PHL (PHL)

Flight Time

475 minutes (7h 55m)

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. 3 bumpier stretches, about 446 min in total.
  • 0:00-1:00 · Takeoff · moderate bumps (~60 min) Noticeable bumps. The seatbelt sign is likely on.
  • 1:00-6:56 · light bumps (~356 min) Light movement. Drinks may ripple.
  • 6:56-7:25 · smooth
  • 7:25-7:55 · Landing · light bumps (~30 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 → PHL
15 pilot reports along this route
15 / 15
Reporting smooth
0 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP FDX30 5150N03233W 1319 F350 5200N03000W 1330 5200N02000W MS45 274/44 KT N857FD QXT AME 301319 F61A
1m ago
Smooth
ARP BAW43C 5306N01117W 1318 F350 DOGAL 1336 5500N02000W MS50 191/93 KT GVIIP DDL DUB 301318 F16A
2m ago
Smooth
ARP ITY636 5459N01955W 1318 F370 5500N02000W 1319 5630N03000W MS49 192/91 KT EITYG QXT EUA 301319 J20A
2m ago
Smooth
ARP SVA061 5339N01755W 1318 F400 5402N01959W 1327 5532N03000W MS50 331/86 KT HZARF QXT EUA 301318 L20A
2m ago
Smooth
ARP AAL41 5353N01140W 1317 F380 5426N01229W 1322 PIKIL MS57 315/104 KT N883BM QXS BLY 301317 L27A
3m ago
AI-powered flight briefing
11,000 data points analyzed · HIGH confidence
Your Flight

We analysed more than 11,000 data points along your route from London Heathrow Airport, London to Philadelphia International Airport, Philadelphia.

Your Journey Beta

1 hour 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 65 knots. These winds may delay arrival by up to 40 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 7h 55min
Maximum turbulence expected per segment
Takeoff
Moderate
0:30-1:00
Moderate
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
Light
5:58-6:27
Light
6:27-6:56
Light
6:56-7:25
Smooth
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
15°C
Conditions
VFR - Clear conditions, no delays expected
PHL Philadelphia International Airport - Arrival
Wind
8 kt (250°)
Sky
Scattered
Temperature
13°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 → PHL, with soft clouds where today's forecast shows bumpier air. Nothing to crash into.