BOS
Logan International
✈
LHR
London Heathrow Airport
Distance
2,830 nm
Altitude
39,000 ft
Est. Duration
6h 38m
Route Information
Departure

BOS (BOS)

Distance

5,240.5 km (2,829.6 nautical miles)

Arrival

LHR (LHR)

Flight Time

420 minutes (7h 0m)

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
💙
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 BOS → LHR
15 pilot reports along this route
14 / 15
Reporting smooth
1 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP TSC690 5049N04814W 0002 F390 5159N04000W 0039 5159N03000W MS56 257/80 KT CGUBT QXS YYT 290002 J73A
2m ago
Smooth
ARP DAL22 5120N04838W 0001 F380 5300N04000W 0040 5330N03000W MS55 248/51 KT N811NW DDL YAY 290001 J48A
3m ago
Smooth
ARP RCH410 5003N04751W 0001 F340 4959N04000W 0034 4959N03000W MS40 254/60 KT 38004S DDL XXN 290002 M06A
3m ago
Smooth
ARP SAS910 5122N04830W 2359 F390 5300N04000W 0038 5400N03000W MS55 254/58 KT LNRKM DDL YAY 282359 J97A
5m ago
Smooth
ARP CMB503 5241N03659W 2357 F350 5358N02959W 0028 5658N01959W MS48 316/50 KT N710CK DDL IG1 282357 F01A
7m ago
AI-powered flight briefing
10,000 data points analyzed · VERY HIGH confidence
Your Flight

We analysed more than 10,000 data points along your route from Logan International, Boston to London Heathrow Airport, London.

Your Journey Beta

1 hour 50 minutes, 2 hours 30 minutes, and 2 hours 40 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 possible light bumps, with calm conditions around the airport.

Winds Aloft

Winds at cruising altitude are about 44 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
Live data from ECMWF global forecast models · 12 atmospheric pressure levels · Updated every 6 hours
Flight Timeline 7h 00min
Maximum turbulence expected per segment
Takeoff
Light
0:30-1:00
Smooth
1:00-1:30
Smooth
1:30-2:00
Moderate
2:00-2:30
Moderate
2:30-3:00
Moderate
3:00-3:30
Light
3:30-4:00
Light
4:00-4:30
Light
4:30-5:00
Light
5:00-5:30
Light
5:30-6:00
Light
6:00-6:30
Smooth
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 G20 (170°)
Sky
Scattered
Temperature
24°C
Conditions
VFR - Clear conditions, no delays expected
LHR London Heathrow Airport - Arrival
Wind
3 kt (220°)
Sky
NSC
Temperature
21°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, not a forecast. Glide BOS → LHR through soft clouds, nothing to crash into.