LHR
London Heathrow Airport
✈
BOS
Logan International
Distance
2,830 nm
Altitude
40,000 ft
Est. Duration
6h 38m
Route Information
Departure

LHR (LHR)

Distance

5,240.5 km (2,829.6 nautical miles)

Arrival

BOS (BOS)

Flight Time

450 minutes (7h 30m)

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
Your flight, stretch by stretch
Some bumps expected. 5 bumpier stretches, about 420 min in total.
  • 0:00-1:00 · Takeoff · moderate bumps (~60 min) Noticeable bumps. The seatbelt sign is likely on.
  • 1:00-4:30 · light bumps (~210 min) Light movement. Drinks may ripple.
  • 4:30-5:00 · smooth
  • 5:00-6:30 · light bumps (~90 min) Light movement. Drinks may ripple.
  • 6:30-7:00 · moderate bumps (~30 min) Noticeable bumps. The seatbelt sign is likely on.
  • 7:00-7:30 · Landing · light bumps (~30 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 LHR → BOS
15 pilot reports along this route
15 / 15
Reporting smooth
0 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP AAL80 5256N03016W 0903 F350 5300N03000W 0904 5358N02000W MS47 301/73 KT N736AT QXT EUA 150903 F86A
7m ago
Smooth
ARP BAW224U 5323N02700W 0903 F390 5359N02000W 0930 DOGAL MS44 290/61 KT GZBLC DDL XXF 150903 L39A
7m ago
Smooth
ARP AIC190 5503N02845W 0903 F310 5500N02000W 0937 RESNO MS45 304/61 KT VTALO QXT AME 150903 F46A
7m ago
Smooth
ARP ACA858 5253N02138W 0902 F370 5259N02000W 0908 5259N01500W MS44 244/66 KT CFITU DDL XXF 150902 F74A
8m ago
Smooth
ARP VIR91U 5343N01638W 0902 F360 5402N02000W 0919 5332N03001W MS45 233/92 KT GVPIE DDL BLY 150902 J16A
8m ago
AI-powered flight briefing
10,000 data points analyzed · HIGH confidence
Your Flight

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

Your Journey Beta

42 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 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 a bit bumpy initially, with calm conditions around the airport.

Winds Aloft

Winds at cruising altitude are about 68 knots. These winds may delay arrival by up to 47 minutes.

Landing

Landing should feel a bit bumpy on descent 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 30min
Maximum turbulence expected per segment
Takeoff
Moderate
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
Light
4:30-5:00
Smooth
5:00-5:30
Light
5:30-6:00
Light
6:00-6:30
Light
6:30-7:00
Moderate
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
8 kt G18 (190°)
Sky
Few
Temperature
17°C
Conditions
MVFR - Reduced visibility, minor delays possible
BOS Logan International - Arrival
Wind
14 kt G25 (340°)
Sky
Scattered
Temperature
13°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 LHR → BOS, with soft clouds where today's forecast shows bumpier air. Nothing to crash into.