Jetblue LHR JFK B620
Jetblue · Live forecast
LHR → JFK
B620 · Aug 17, 2026 · 11:55 BS
84
Calm Score
"A smooth ride ahead - sit back and enjoy."
8h 24m
Duration
2,991 nm
Distance
40,000 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
Your flight departs in less than 6 hours. The forecast is unlikely to change significantly at this point.

💙
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 LHR → JFK
15 pilot reports along this route
15 / 15
Reporting smooth
0 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP DLH4C 5456N02144W 0830 F410 5458N02000W 0837 RESNO MS45 228/62 KT DAIXW DDL XXH 170830 J42A
2m ago
Smooth
ARP VIR1074 5259N01841W 0830 F400 MALOT 0845 GISTI MS57 242/74 KT GVLIB DDL XXF 170830 J91A
2m ago
Smooth
ARP UAL978 5330N03000W 0830 F370 5530N02000W 0912 ETARI MS42 255/74 KT N29129 DDL IG1 170831 F05A
2m ago
Smooth
ARP UAL317 5107N03932W 0830 F370 5300N03000W 0908 5500N02000W MS53 241/135 KT N48127 DDL IG1 170830 F39A
2m ago
Smooth
ARP VIR138M 5301N01917W 0828 F390 MALOT 0846 GISTI MS58 232/70 KT GVPIE DDL X2E 170829 J14A
4m ago
AI-powered flight briefing
11,000 data points analyzed · HIGH confidence
Your Flight

We analysed more than 11,000 data points along your route from London Heathrow Airport, London to John F Kennedy International Airport, New York.

Your Journey Beta

49 minutes and 1 hour 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 and over the Appalachian Mountains – 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 62 knots. These winds may delay arrival by up to 44 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
Live data from ECMWF global forecast models · 12 atmospheric pressure levels · Updated every 6 hours
Flight Timeline 8h 24min
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
Light
2:30-3:00
Light
3:00-3:30
Light
3:30-4:00
Light
4:00-4:30
Smooth
4:30-5:00
Smooth
5:00-5:29
Smooth
5:29-5:58
Light
5:58-6:27
Light
6:27-6:56
Light
6:56-7:25
Light
7:25-7:54
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
LHR London Heathrow Airport - Departure
Wind
9 kt (280°)
Sky
Scattered
Temperature
20°C
Conditions
VFR - Clear conditions, no delays expected
JFK John F Kennedy International Airport - Arrival
Visibility
3 mi
Wind
7 kt (280°)
Sky
Broken
Temperature
22°C
Conditions
MVFR - Reduced visibility, minor delays possible
Your flight details
Departure timing and aircraft information
Morning Flight Departure
Time of day
Morning Flight
Tip
Morning flights typically experience smoother conditions as the atmosphere is more stable and thermal turbulence hasn't yet developed.
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:

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, not a forecast. Glide LHR → JFK through soft clouds, nothing to crash into.