How long is flight VS4?

The JFK to LHR route is the basis for the schedule. View the full route forecast and typical duration on the Turbcast route page.

Flight VS4

VS4 Turbulence ForecastVirgin Atlantic · JFK → LHR

About flight VS4

Airline: Virgin Atlantic (VS)
Route: JFK → LHR
Typical Aircraft: A350
Distance: 5,540 km
Duration: 6h 56m
Cruise Altitude: FL390

See today’s turbulence forecast

Virgin Atlantic VS4 flies the jet-stream exposed corridor from New York to London. Conditions change hour to hour - view the live forecast for your departure date.

View live forecast

Check VS4 on a specific date

Turbulence on the JFK → LHR route

Jet-stream exposure on this corridor is significant. Long mid-latitude legs mean clear-air turbulence is the dominant source of bumps, typically encountered at cruise altitude. Flying eastbound, aircraft usually benefit from tailwinds near the jet core, which trims flight time - but the edges of the jet are where clear-air turbulence most often sits.

Calmest season: Late spring to early autumn (May-September). The oceanic track sees its strongest jet-stream activity in the northern winter (Nov-Mar), when winds aloft are fastest and clear-air turbulence is more frequent.

Full JFK to LHR route guide

Frequently asked questions

Is VS4 usually a bumpy flight?

Virgin Atlantic VS4 operates between JFK and LHR. Whether it’s bumpy depends on the day’s weather - Turbcast pulls live NOAA aviation-grade data so you can check the actual forecast for your departure date rather than relying on averages.

What aircraft does VS4 use?

VS4 is typically operated by the A350. Aircraft swaps happen - confirm with your booking before flying.

How long is the JFK to LHR flight?

Approximately 6h 56m direct, covering 5,540 km at a typical cruise of FL390.

When does VS4 have the smoothest weather?

Historically calmest during Late spring to early autumn (May-September). Forecast accuracy improves as you get closer to departure - within 48 hours the NOAA WAFS model is at peak skill.