LHR
London Heathrow Airport
✈
PHX
Phoenix Sky Harbor International Airport
Distance
4,569 nm
Altitude
40,000 ft
Est. Duration
10h 30m
Route Information
Departure

LHR (LHR)

Distance

8,462.5 km (4,569.4 nautical miles)

Arrival

PHX (PHX)

Flight Time

655 minutes (10h 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 595 min in total.
  • 0:00-2:30 · Takeoff · light bumps (~150 min) Light movement. Drinks may ripple.
  • 2:30-3:00 · smooth
  • 3:00-9:56 · light bumps (~416 min) Light movement. Drinks may ripple.
  • 9:56-10:25 · moderate bumps (~29 min) Noticeable bumps. The seatbelt sign is likely on.
  • 10:25-10:55 · Landing · smooth
💙
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 → PHX
15 pilot reports along this route
15 / 15
Reporting smooth
0 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP DAL71 5609N01109W 0903 F360 SUNOT 0921 5732N02000W MS46 229/111 KT N571DZ DDL SYY 150903 J32A
11m ago
Smooth
ARP BAW26V 5814N03119W 0901 F390 5759N03001W 0906 5559N02001W MS46 308/52 KT GZBLJ DDL XXF 150901 L32A
13m ago
Smooth
ARP UAL311 5640N01414W 0858 F360 SUNOT 0902 5730N02000W MS43 236/84 KT N67134 DDL TRE 150858 F91A
16m ago
Smooth
ARP BAW26V 5822N03204W 0858 F390 5759N03001W 0906 5559N02001W MS46 308/54 KT GZBLJ DDL XXF 150858 L31A
16m ago
Smooth
ARP SIA26 5640N01327W 0856 F340 SUNOT 0903 5730N02000W MS43 230/86 KT 9VSWY QXS BRR 150856 F34A
18m ago
AI-powered flight briefing
16,500 data points analyzed · HIGH confidence
Your Flight

We analysed more than 16,500 data points along your route from London Heathrow Airport, London to Phoenix Sky Harbor International Airport, Phoenix.

Your Journey Beta

10 hours 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, over the Rocky Mountains, and across the Sonoran Desert – these areas can sometimes cause 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 68 knots. These winds may delay arrival by up to 79 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 55min
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
Smooth
3:00-3:30
Light
3:30-4:00
Light
4:00-4:30
Light
4:30-5:00
Light
5:00-5:30
Light
5:30-6:00
Light
6:00-6:30
Light
6:30-7:00
Light
7:00-7:30
Light
7:30-8:00
Light
8:00-8:29
Light
8:29-8:58
Light
8:58-9:27
Light
9:27-9:56
Light
9:56-10:25
Moderate
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
8 kt G18 (190°)
Sky
Few
Temperature
17°C
Conditions
MVFR - Reduced visibility, minor delays possible
PHX Phoenix Sky Harbor International Airport - Arrival
Wind
4 kt (0°)
Sky
Clear
Temperature
19°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 → PHX, with soft clouds where today's forecast shows bumpier air. Nothing to crash into.