Your Flight
We analysed more than 11,000 data points along your route from Philadelphia International Airport, Philadelphia to London Stansted Airport, London.
Ups
PHL
STN
5X205
Ups · Live forecast
PHL
→
STN
83
Calm Score
"A smooth ride ahead — sit back and enjoy."
10h 47m
Duration
3,089 nm
Distance
39,000 ft
Cruise Altitude
HIGH
Confidence
Turbulence comfort along route
Comfort score combines turbulence probability with intensity — higher means rougher
Smooth
Light
Moderate
Severe
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This flight has already departed.
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 you'll be completely safe. 1 in 3 passengers feel exactly like you.
Right now on your route
Live pilot reports from aircraft flying PHL → STN
15 pilot reports along this route
15 / 15
Reporting smooth
0 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP DHK009 5216N04532W 1441 F350 5259N04000W 1503 5329N03000W MS56 272/98 KT GDHLY DDL XXH 171441 F50A
1m ago
Smooth
ARP UPS237 5004N05521W 1440 F350 UMESI 1453 5130N05000W MS54 264/95 KT N351UP QXS YAY 171440 F10A
2m ago
Smooth
ARP ROMA21 5328N04344W 1440 F220 5400N04000W 1500 5400N03500W MS27 247/58 KT 38039S DDL XXN 171440 M88A
2m ago
Smooth
ARP TWY12 5246N03337W 1438 F400 5201N04001W 1510 5001N05001W MS56 283/44 KT N142RM QXT EUA 171439 M66A
4m ago
Smooth
ARP UPS207 5353N03132W 1437 F390 5359N03000W 1444 5359N02000W MS54 274/43 KT N317UP QXT IGW 171437 F59A
5m ago
AI-powered flight briefing
11,000 data points analyzed
· HIGH confidence
Your Journey Beta
28 minutes and 4 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 over the Appalachian Mountains and crossing the North Atlantic Ocean – 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 60 knots. These winds are favorable and may get you there up to 41 minutes early.
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
Flight Timeline 10h 47min
Maximum turbulence expected per segment
Takeoff
Moderate
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
4:00-4:29
Moderate
4:29-4:58
Light
4:58-5:27
Light
5:27-5:56
Light
5:56-6:25
Light
6:25-6:54
Light
6:54-7:23
Light
7:23-7:52
Light
7:52-8:21
Smooth
8:21-8:50
Smooth
8:50-9:19
Light
9:19-9:48
Light
9:48-10:17
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
PHL
Philadelphia International Airport — Departure
Wind
7 kt (310°)
Sky
Broken
Temperature
23°C
Conditions
VFR — Clear conditions, no delays expected
STN
London Stansted Airport — Arrival
Wind
7 kt (270°)
Sky
Scattered
Temperature
16°C
Conditions
VFR — Clear conditions, no delays expected
Your flight details
Departure timing and aircraft information
Morning Flight Departure
Time of day
Morning Flight
Tip
Morning flights typically experience smoother conditions as the atmosphere is more stable and thermal turbulence hasn't yet developed.
When
Today
boeing 767-34af(er)
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:
- ECMWF Open Data — Global atmospheric model (wind/temperature at 13 flight levels)
- NOAA Aviation Weather Center — Pilot Reports (PIREPs), SIGMETs/AIRMETs, TAFs
- NOAA Space Weather Prediction Center — Aurora forecasts for polar routes
- AviationStack API — Flight schedules and airline operational data
Disclaimer: This forecast is for informational purposes only. Always consult official aviation weather sources and follow ATC guidance.