Your Flight
We analysed more than 10,000 data points along your route from Logan International, Boston to Lisbon Humberto Delgado Airport, Lisbon.
Tap Air Portugal
BOS
LIS
TP218
Tap Air Portugal · Live forecast
BOS
→
LIS
82
Calm Score
"A smooth ride ahead — sit back and enjoy."
6h 35m
Duration
2,767 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
Notifications not available
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 BOS → LIS
15 pilot reports along this route
14 / 15
Reporting smooth
0 / 15
Light turbulence
1
Moderate or worse
Latest pilot reports
Smooth
ARP UAL964 4506N04551W 2304 F350 4500N04000W 2334 4500N03000W MS45 225/57 KT N685UA DDL X4A 162304 F68A
1m ago
Smooth
ARP DAL286 4510N05412W 2300 F350 SUPRY 2311 4600N05000W MS45 240/67 KT N188DN QXT IGW 162301 F31A
5m ago
Smooth
ARP ACA844 4618N04846W 2300 F390 4800N04000W 2341 4900N03000W MS51 349/80 KT CGHPU DDL YYT 162300 L65A
5m ago
Smooth
ARP ITY609 4438N05439W 2256 F370 RAFIN 2309 4500N05000W MS45 247/71 KT EIHPB QXT AME 162256 J53A
9m ago
Smooth
ARP ITY619 4440N05424W 2255 F390 RAFIN 2308 4500N05000W MS49 242/78 KT EIEJO QXT AME 162255 J40A
10m ago
AI-powered flight briefing
10,000 data points analyzed
· HIGH confidence
Your Journey Beta
46 minutes, 2 hours 15 minutes, and 6 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 smooth with possible light bumps, with calm conditions around the airport.
Winds Aloft
Winds at cruising altitude are about 56 knots. These winds are favorable and may get you there up to 35 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 6h 35min
Maximum turbulence expected per segment
Takeoff
Light
0:30-0:58
Moderate
0:58-1:26
Light
1:26-1:54
Light
1:54-2:22
Moderate
2:22-2:50
Light
2:50-3:18
Light
3:18-3:46
Moderate
3:46-4:14
Smooth
4:14-4:42
Smooth
4:42-5:10
Light
5:10-5:38
Light
5:38-6:05
Moderate
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
BOS
Logan International — Departure
Wind
11 kt G22 (290°)
Sky
Broken
Temperature
24°C
Conditions
VFR — Clear conditions, no delays expected
LIS
Lisbon Humberto Delgado Airport — Arrival
Wind
7 kt (300°)
Sky
Broken
Temperature
20°C
Conditions
VFR — Clear conditions, no delays expected
Your flight details
Departure timing and aircraft information
Evening Flight Departure
Time of day
Evening Flight
Tip
Evening and night flights typically offer smoother conditions as thermal activity subsides and the atmosphere stabilizes after sunset.
When
Today
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.