Your Flight
We analysed more than 17,500 data points along your route from Schiphol, Amsterdam to Juan Santamaría International Airport, San José (Alajuela).
AMS
Schiphol
✈
SJO
Juan Santamaría International Airport
Route Information
Departure
AMS (AMS)
Distance
9,060.3 km (4,892.2 nautical miles)
Arrival
SJO (SJO)
Estimated Flight Time
673 minutes (11h 13m)
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
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 AMS → SJO
15 pilot reports along this route
15 / 15
Reporting smooth
0 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP AFR352 5143N01122W 2104 F340 TOBOR 2122 5330N02000W MS46 221/56 KT FGZNN QXS SNN 272104 F11A
2m ago
Smooth
ARP ELY011 4934N02814W 2103 F380 5000N03000W 2112 5130N04000W MS57 262/44 KT 4XEDL QXT EUA 272103 L49A
3m ago
Smooth
ARP ELY011 4932N02806W 2102 F380 5000N03000W 2113 5130N04000W MS57 262/45 KT 4XEDL QXT EUA 272102 L48A
4m ago
Smooth
ARP IBE03YY 4922N02857W 2052 F320 4932N02959W 2058 5002N04000W MS45 250/40 KT ECOLE DDL IG1 272052 J41A
14m ago
Smooth
ARP ELY011 4853N02546W 2049 F380 5000N03000W 2112 5130N04000W MS56 273/29 KT 4XEDL QXT EUA 272049 L46A
17m ago
AI-powered flight briefing
17,500 data points analyzed
· HIGH confidence
Your Journey Beta
44 minutes, 4 hours 35 minutes, and 4 hours 50 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 crossing the North Atlantic Ocean – conditions there 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 42 knots. These winds may delay arrival by up to 37 minutes.
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 11h 13min
Maximum turbulence expected per segment
Takeoff
Light
0:30-1:00
Moderate
1:00-1:30
Light
1:30-2:00
Light
2:00-2:30
Moderate
2:30-2:59
Smooth
2:59-3:28
Smooth
3:28-3:57
Light
3:57-4:26
Light
4:26-4:55
Moderate
4:55-5:24
Light
5:24-5:53
Smooth
5:53-6:22
Light
6:22-6:51
Light
6:51-7:20
Light
7:20-7:49
Smooth
7:49-8:18
Light
8:18-8:47
Smooth
8:47-9:16
Smooth
9:16-9:45
Smooth
9:45-10:14
Light
10:14-10:43
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
AMS
Schiphol - Departure
Wind
10 kt (280°)
Sky
NSC
Temperature
18°C
Conditions
VFR - Clear conditions, no delays expected
SJO
Juan Santamaría International Airport - Arrival
Wind
12 kt (100°)
Sky
Scattered
Temperature
29°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.