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BOS to LHR Turbulence Forecast

Is the Boston to London flight turbulent? Live forecast & historical patterns.

Live forecast
BOS
→
LHR
Boston · London · 6h 50m
54
Turb Score
6h 50m
Duration
2,765 nm
Distance
36,000 ft
Cruise Alt.
Light
Typical
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Typical turbulence along the route

Historical average pattern for BOS–LHR

Smooth Light Moderate
0h1h2h3h4h5h6h6h 50m
Smooth
Light
Moderate
Heavy

About the BOS–LHR route

The Boston to London route crosses the North Atlantic, where the jet stream is the primary source of turbulence. Flying at 36,000 feet, the aircraft encounters the strongest bumps roughly 2–5 hours into the flight. This is clear-air turbulence — no clouds, no visual warning — which makes a pre-flight forecast especially valuable.

The route is served by British Airways, American Airlines on Boeing 767 · Boeing 787 aircraft, with flights typically cruising at 36,000 feet over a distance of 3,183 miles (2,765 nautical miles).

💡 Tip: Turbulence peaks mid-flight over the Atlantic. First and last hour are usually smooth.

Turbulence levels on BOS–LHR

What to expect at each phase of the flight

SmoothDeparture & arrival — climb and descent phases are generally calm
LightMinor bumps — drink stays in your cup, walking feels slightly unsteady
ModerateNoticeable bumps — stay seated with seatbelt on, service may pause
HeavyStrong jolts — unsecured items move, crew seated. Rare but possible

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Best time to fly BOS–LHR

Turbulence by month

J
F
M
A
M
J
J
A
S
O
N
D
Smooth
Light
Moderate
Rough

Best seat on BOS–LHR

Boeing 767

Front
Rows 1–17
Light
✓ Wing
Rows 18–30
Smoothest
Rear
Rows 31+
Rougher
Wing seats are over the center of gravity — least affected by turbulence.

What you'll see in the app

Full forecast, live map & seat recommendations

BOS to LHR turbulence forecast app
Flight turbulence tracker
Real-time turbulence map

Similar routes

Other popular routes with turbulence data

JFK → LHR
New York → London
Moderate
EWR → LHR
Newark → London
Moderate
ORD → LHR
Chicago → London
Moderate

Frequently asked questions

Is the Boston to London flight turbulent?
The BOS–LHR route typically experiences light turbulence. Moderate turbulence expected — fasten seatbelt when seated. The turbulence score for this route is 54/100.
When is turbulence worst on BOS to LHR?
Turbulence peaks mid-flight over the Atlantic. First and last hour are usually smooth. Check the turbulence chart above for the typical pattern along this specific route.
Which seat is smoothest on BOS to LHR?
Wing seats are always the smoothest. On a Boeing 767 (the most common aircraft on this route), that's rows 18–30. Avoid the very rear of the aircraft — it amplifies turbulence motion.
How long is the flight from BOS to LHR?
The BOS to LHR flight takes approximately 6h 50m, covering 3,183 miles (2,765 nautical miles).
Which airlines fly BOS to LHR?
The main airlines operating this route are British Airways, American Airlines, flying Boeing 767 · Boeing 787 aircraft.