Newark, New York area to London: what the EWR to LHR corridor looks like
- Departure
- Newark Liberty International Airport, Newark, New York area, the United States
- Arrival
- London Heathrow Airport, London, the United Kingdom
- Great-circle distance
- 5,563 km (3,004 nm)
- Typical airborne time
- 6h 58m
- Usual cruise levels
- FL340 to FL400
- Initial track
- northeast bound
Route overview
Newark Liberty International Airport (EWR) in Newark, New York area, the United States, to London Heathrow Airport (LHR) in London, the United Kingdom, is a great-circle distance of 5,563 km, about 3,004 nautical miles. At typical jet cruise speeds, and with an allowance for climb, descent and approach, that works out to roughly 6h 58m of airborne time. The great-circle track leaves Newark, New York area northeast bound and spends most of the flight in mid latitude air.
Jet stream along the track
Along the way the track passes over the open Atlantic and high latitude airspace where the polar jet stream lives. The corridor sits under the polar jet stream for much of the crossing. Where the wind speed changes sharply at the edge of that jet, the air can develop clear air turbulence, which radar cannot see but the WAFS model forecasts well. Flight planners choose a track and a level that keep the aircraft away from the strongest shear layer, and the rougher patches that remain usually last minutes at a time.
Cruise altitudes on this sector
Long haul crews normally start cruise around FL340, then step climb toward FL380 or FL400 as the aircraft burns off fuel and can hold a higher level. 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
Seasonally, the polar jet stream is strongest in the northern winter, so flights between November and March meet more clear air turbulence than the same route in June or September.
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 EWR to LHR, so you can see what to expect before you board.