Your Flight
We analysed more than 11,500 data points along your route from Logan International, Boston to El Prat De Llobregat, Barcelona.
Delta Air Lines
BOS
BCN
DL250
Delta Air Lines · Live forecast
BOS
→
BCN
82
Calm Score
"A smooth ride ahead — sit back and enjoy."
7h 15m
Duration
3,163 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
Set an alert before your flight
Beta
You still have 22 hours before departure. We'll notify you if this forecast changes.
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 → BCN
15 pilot reports along this route
15 / 15
Reporting smooth
0 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP SVA020 4505N05441W 0101 F310 SUPRY 0113 4600N05000W MS43 248/82 KT HZAK43 QXT AME 170101 F32A
5m ago
Smooth
ARP ACA896 4527N05334W 0100 F330 4514N05143W 0108 4500N05000W MS47 249/82 KT CFIVR DDL YYT 170100 F27A
6m ago
Smooth
ARP AAL96 4757N04545W 0100 F400 4859N04000W 0127 4959N03000W MS53 330/68 KT N881BK QXT AME 170101 L58A
6m ago
Smooth
ARP DAL214 4841N03419W 0100 F370 4900N03000W 0122 5000N02000W MS52 008/33 KT N415DX DDL IG1 170100 J03A
6m ago
Smooth
ARP UAL170 4657N05440W 0059 F340 4800N05000W 0121 5000N04000W MS49 238/80 KT N66057 DDL X4A 170059 F31A
7m ago
AI-powered flight briefing
11,500 data points analyzed
· HIGH confidence
Your Journey Beta
4 hours 30 minutes 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, crossing the North Atlantic Ocean, and over the Pyrenees – 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 50 knots. These winds are favorable and may get you there up to 28 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 15min
Maximum turbulence expected per segment
Takeoff
Light
0:30-0:59
Light
0:59-1:28
Light
1:28-1:57
Light
1:57-2:26
Light
2:26-2:55
Light
2:55-3:24
Light
3:24-3:53
Light
3:53-4:22
Light
4:22-4:51
Moderate
4:51-5:20
Light
5:20-5:49
Light
5:49-6:17
Light
6:17-6:45
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
BOS
Logan International — Departure
Wind
10 kt (200°)
Sky
Few
Temperature
24°C
Conditions
VFR — Clear conditions, no delays expected
BCN
El Prat De Llobregat — Arrival
Visibility
5 mi
Wind
1 kt
Sky
Broken
Temperature
25°C
Conditions
MVFR — Reduced visibility, minor delays possible
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.