JFK
John F Kennedy International Airport
✈
PRG
Václav Havel Airport Prague
Distance
3,537 nm
Altitude
39,000 ft
Est. Duration
8h 12m
Route Information
Departure

JFK (JFK)

Distance

6,551.0 km (3,537.3 nautical miles)

Arrival

PRG (PRG)

Estimated Flight Time

492 minutes (8h 12m)

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
Your flight, stretch by stretch
Some bumps expected. 4 bumpier stretches, about 405 min in total.
  • 0:00-0:30 · Takeoff · smooth
  • 0:30-3:53 · light bumps (~203 min) Light movement. Drinks may ripple.
  • 3:53-4:22 · moderate bumps (~29 min) Noticeable bumps. The seatbelt sign is likely on.
  • 4:22-5:49 · light bumps (~87 min) Light movement. Drinks may ripple.
  • 5:49-6:46 · smooth
  • 6:46-8:12 · Landing · light bumps (~86 min) Light movement. Drinks may ripple.
💙
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 → PRG
15 pilot reports along this route
15 / 15
Reporting smooth
0 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP BOX397 5440N03254W 2246 F350 5500N03000W 2255 5530N02000W MS45 260/167 KT DAALK QXT AME 232246 F46A
3m ago
Smooth
ARP BOX397 5438N03306W 2245 F350 5500N03000W 2255 5530N02000W MS45 260/168 KT DAALK QXT AME 232245 F45A
4m ago
Smooth
ARP ETD76T 5200N04941W 2238 F350 5229N04000W 2314 5229N03000W MS47 250/97 KT A6BNF QXS YAY 232238 L66A
11m ago
Smooth
ARP DAL234 5136N04452W 2233 F360 5159N04000W 2251 5259N03000W MS49 245/135 KT N426DZ DDL IG1 232233 J61A
16m ago
Smooth
ARP BOX397 5402N03704W 2232 F350 5500N03000W 2255 5530N02000W MS44 258/166 KT DAALK QXT AME 232233 F43A
17m ago
AI-powered flight briefing
13,000 data points analyzed · HIGH confidence
Your Flight

We analysed more than 13,000 data points along your route from John F Kennedy International Airport, New York to Václav Havel Airport Prague, Prague.

Your Journey Beta

4 hours 15 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 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 calm conditions around the airport.

Winds Aloft

Winds at cruising altitude are about 72 knots. These winds are favorable and may get you there up to 60 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
Live data from ECMWF global forecast models · 12 atmospheric pressure levels · Updated every 6 hours
Flight Timeline 8h 12min
Maximum turbulence expected per segment
Takeoff
Smooth
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
Moderate
4:22-4:51
Light
4:51-5:20
Light
5:20-5:49
Light
5:49-6:18
Smooth
6:18-6:46
Smooth
6:46-7:14
Light
7:14-7:42
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
7 kt (360°)
Sky
Clear
Temperature
13°C
Conditions
VFR - Clear conditions, no delays expected
PRG Václav Havel Airport Prague - Arrival
Wind
12 kt (210°)
Sky
NSC
Temperature
9°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:

Disclaimer: This forecast is for informational purposes only. Always consult official aviation weather sources and follow ATC guidance.

Fly this route, calmly Game · Beta A calming mini-game. Glide JFK → PRG, with soft clouds where today's forecast shows bumpier air. Nothing to crash into.