Your Flight
We analysed more than 10,500 data points along your route from John F Kennedy International Airport, New York to Lisbon Humberto Delgado Airport, Lisbon.
JFK
John F Kennedy International Airport
✈
LIS
Lisbon Humberto Delgado Airport
Route Information
Departure
JFK (JFK)
Distance
5,404.5 km (2,918.2 nautical miles)
Arrival
LIS (LIS)
Flight Time
425 minutes (7h 5m)
Flight Profile
Cruise Altitude: 39,000 ft (Flight Level 390)
Route calculated using great circle navigation
Turbulence comfort along route
Comfort score combines turbulence probability with intensity, higher means rougher
Smooth
Light
Moderate
Severe
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 JFK → LIS
15 pilot reports along this route
14 / 15
Reporting smooth
1 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP ACA824 4502N05143W 0159 F370 4500N05000W 0207 4400N04000W MS53 248/89 KT CGFAJ DDL YYT 310159 J78A
2m ago
Smooth
ARP ACA822 4507N05137W 0158 F390 4500N05000W 0206 4500N04000W MS56 245/89 KT CGKUG QXS YYT 310158 J15A
3m ago
Smooth
ARP DAL262 4540N05122W 0156 F350 4600N05000W 0202 4700N04000W MS51 252/83 KT N832MH QXS YYT 310156 F14A
5m ago
Smooth
ARP IBE0362 4549N04212W 0156 F340 4558N04000W 0206 4728N03000W MS45 262/97 KT ECOQG DDL IG1 310157 J20A
5m ago
Smooth
ARP UAL108 4556N04115W 0156 F380 4600N04000W 0202 4700N03000W MS54 257/98 KT N30913 DDL XXN 310157 L59A
5m ago
AI-powered flight briefing
10,500 data points analyzed
· HIGH confidence
Your Journey Beta
3 hours 10 minutes, 4 hours 15 minutes, and 5 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.
Mostly Smooth
Overall conditions look mostly smooth with occasional light bumps. Nothing to worry about.
Takeoff
Takeoff should feel smooth with possible light bumps, with calm conditions around the airport.
Winds Aloft
Winds at cruising altitude are about 77 knots. These winds are favorable and may get you there up to 51 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 7h 05min
Maximum turbulence expected per segment
Takeoff
Light
0:30-0:59
Light
0:59-1:27
Light
1:27-1:55
Light
1:55-2:23
Light
2:23-2:51
Light
2:51-3:19
Moderate
3:19-3:47
Light
3:47-4:15
Moderate
4:15-4:43
Light
4:43-5:11
Moderate
5:11-5:39
Light
5:39-6:07
Light
6:07-6:35
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
JFK
John F Kennedy International Airport - Departure
Wind
8 kt (260°)
Sky
Broken
Temperature
26°C
Conditions
VFR - Clear conditions, no delays expected
LIS
Lisbon Humberto Delgado Airport - Arrival
Wind
10 kt (340°)
Sky
NSC
Temperature
18°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:
- 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.