BOS
Logan International
✈
KEF
Keflavik International Airport
Distance
2,092 nm
Altitude
39,000 ft
Est. Duration
4h 59m
Route Information
Departure

BOS (BOS)

Distance

3,874.8 km (2,092.2 nautical miles)

Arrival

KEF (KEF)

Estimated Flight Time

299 minutes (4h 59m)

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. 3 bumpier stretches, about 209 min in total.
  • 0:00-1:00 · Takeoff · moderate bumps (~60 min) Noticeable bumps. The seatbelt sign is likely on.
  • 1:00-1:30 · light bumps (~30 min) Light movement. Drinks may ripple.
  • 1:30-3:00 · smooth
  • 3:00-4:59 · Landing · light bumps (~119 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 BOS → KEF
4 pilot reports along this route
4 / 4
Reporting smooth
0 / 4
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP DLH471 5329N05252W 0153 F330 5400N05000W 0205 5500N04000W MS50 257/46 KT DABVM DDL XXH 150153 F62A
8m ago
Smooth
ARP UAL972 5135N05758W 0152 F370 PELTU 0205 5300N05000W MS47 255/38 KT N16008 DDL YIF 150152 L55A
9m ago
Smooth
ARP AAL9603 5754N04710W 0152 F400 5730N05000W 0205 BOKTO MS49 285/58 KT N852ML QXS UAK 150152 L85A
9m ago
Smooth
ARP KLM120 6034N04440W 0151 F390 6000N04000W 0207 6000N03000W MS51 305/59 KT PHBKS QXS UAK 150151 L86A
10m ago
AI-powered flight briefing
7,500 data points analyzed · HIGH confidence
Your Flight

We analysed more than 7,500 data points along your route from Logan International, Boston to Keflavik International Airport, Reykjavík.

Your Journey Beta

26 minutes and 34 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 a bit bumpy initially, with calm conditions around the airport.

Winds Aloft

Winds at cruising altitude are about 53 knots. These winds are favorable and may get you there up to 18 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 4h 59min
Maximum turbulence expected per segment
Takeoff
Moderate
0:30-1:00
Moderate
1:00-1:30
Light
1:30-2:00
Smooth
2:00-2:30
Smooth
2:30-3:00
Smooth
3:00-3:30
Light
3:30-4:00
Light
4:00-4:29
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
BOS Logan International - Departure
Wind
12 kt G20 (290°)
Sky
Scattered
Temperature
19°C
Conditions
VFR - Clear conditions, no delays expected
KEF Keflavik International Airport - Arrival
Wind
30 kt G42 (330°)
Sky
Overcast
Temperature
2°C
Conditions
MVFR - Reduced visibility, minor delays possible
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 BOS → KEF, with soft clouds where today's forecast shows bumpier air. Nothing to crash into.