How turbulent is LHR-FCO typically?

Usually light. Föhn conditions add 10-15 minutes of mountain-wave turbulence over the Alps.

What is the best altitude to avoid turbulence on LHR-FCO?

Short-haul flights are limited to FL300-FL380. The upper end of that band is the calmer choice on föhn days.

When is the best time of year to fly LHR-FCO?

Summer. Winter föhn events over the Alps are the main source of bumps.

What causes the turbulence on this route?

Mountain waves generated by föhn winds crossing the Alps.

Turbulence forecast LHR → FCO. London Heathrow to Rome Fiumicino. SkyBriefing.

London to Rome: what the LHR to FCO corridor looks like

Departure: London Heathrow Airport, London, the United Kingdom
Arrival: Rome Fiumicino Airport, Rome, Italy
Great-circle distance: 1,443 km (779 nm)
Typical airborne time: 2h 11m
Usual cruise levels: FL280 to FL360
Initial track: southeast bound

Route overview

London Heathrow Airport (LHR) in London, the United Kingdom, to Rome Fiumicino Airport (FCO) in Rome, Italy, is a great-circle distance of 1,443 km, about 779 nautical miles. At typical jet cruise speeds, and with an allowance for climb, descent and approach, that works out to roughly 2h 11m of airborne time. The great-circle track leaves London southeast bound and spends most of the flight in mid latitude air.

Alpine wave and short sector cruise

The track passes near the Alps, where foehn wind conditions can set off mountain waves that reach the cruise band. On those days the affected stretch lasts ten to fifteen minutes over the ridge. On the rest of the sector, most movement belongs to climb and descent.

Cruise altitudes on this sector

Short sectors like this one spend a large share of the flight climbing and descending, so cruise is brief and usually sits in the FL280 to FL360 band. Choice of level matters because turbulence is layered: a change of two or three thousand feet often puts the aircraft into calmer air, and that is one of the first adjustments a crew will request.

Seasonal pattern

Foehn conditions over the Alps are most common in the colder half of the year, which is when the short wave segment on this sector is most likely to appear.

Flying this route with less worry

Turbulence on this corridor is a comfort issue rather than a safety one. Airliners are certified to handle loads well beyond anything the atmosphere produces here, crews are trained for it, and the seat belt sign is the tool that keeps the cabin settled. What this page adds is knowing in advance: the map and Calmness Score above use current WAFS forecast data for LHR to FCO, so you can see what to expect before you board.