How long is flight KE85?

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

Flight KE85

KE85 Turbulence ForecastKorean Air · ICN → JFK

About flight KE85

Airline: Korean Air (KE)
Route: ICN → JFK
Typical Aircraft: B748
Distance: 11,089 km
Duration: 13h 24m
Cruise Altitude: FL410

See today’s turbulence forecast

Korean Air KE85 flies the ultra-long-haul corridor from Seoul to New York. Conditions change hour to hour - view the live forecast for your departure date.

View live forecast

Check KE85 on a specific date

Turbulence on the ICN → JFK route

The route crosses mid-latitudes where the polar jet can influence flight conditions, though exposure is shorter than on genuine long-haul crossings. A large portion of the flight crosses open ocean (North Pacific), where upper-level conditions are generally smoother than over continental terrain.

Calmest season: Late spring to early autumn (May-September). This corridor is most turbulent in the northern winter (Nov-Mar), when the jet stream is strongest and sits closer to the route.

Full ICN to JFK route guide

Frequently asked questions

Is KE85 usually a bumpy flight?

Korean Air KE85 operates between ICN and JFK. 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 KE85 use?

KE85 is typically operated by the B748. Aircraft swaps happen - confirm with your booking before flying.

How long is the ICN to JFK flight?

Approximately 13h 24m direct, covering 11,089 km at a typical cruise of FL410.

When does KE85 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.