Part of the data ring
FlyTime
JFK → NKG

New York to Nanjing

15h 09mgate to gate

The flight from John F. Kennedy International Airport (JFK) to Nanjing Lukou International Airport (NKG) covers 11,863 km (7,371 miles) and takes approximately 15h 09m gate to gate for a typical jet.

The route heads north on an initial great-circle bearing of 349°, passing near 80.4° N, 175.3° E at its midpoint.

Great-circle strip Plate JFK–NKG
15h 09mGATE TO GATE3h 47m11h 22mJFKNew YorkNKGNanjing349° NORTH6,406 NM02,9665,9328,89711,863 km

Bearing 349° north Midpoint 80.4° N, 175.3° E Model 805 km/h + 25 min

SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026

Flight time15h 09mestimated, gate to gate
Distance11,863km · 7,371 mi
Nautical6,406nautical miles
Direction349°north

How this is worked out

  1. Take both airports' published coordinates from OurAirports — nothing here is scraped from another flight site.
  2. Great-circle distance by haversine on a mean earth radius of 6,371.0088 km: 11,863 km.
  3. Airborne time = that distance ÷ 805 km/h, a representative jet cruise speed: 14h 44m.
  4. Add a flat 25 minutes for pushback, taxi, climb, descent and taxi-in — the reason a 400 km hop is never half an hour: 15h 09m gate to gate.
  5. Winds, aircraft type and airline schedule padding are not modelled. The cruise-speed table shows how much that assumption is worth.
11,863 km / 805 km/h = 14h 44m airborne
            + 25 min ground = 15h 09m gate to gate

The full model, and what it ignores →

SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026

The same route, plotted on a world grid

The strip above gives the route its length and its shape. This gives it a position: latitude and longitude only, no coastlines, because a hand-drawn coastline would be decoration pretending to be data. On a flat grid the shortest path looks bent; on a globe it is straight.

JFK NKG

Flight time at different cruise speeds

Aircraft type, winds and routing all move the real number. This is the same distance flown at different speeds, plus the 25-minute ground and climb allowance.

Typical ofCruise speedAirborneGate to gate
Turboprop / regional550 km/h21h 34m21h 59m
Narrowbody jet (A320, 737)780 km/h15h 13m15h 38m
Widebody jet (777, 787, A350)900 km/h13h 11m13h 36m
Private jet (Gulfstream)850 km/h13h 57m14h 23m

Headwinds on an eastbound long-haul routinely add 30–60 minutes; the same route westbound can be quicker. Airlines publish schedules with padding built in.

SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026

Both airports

JFKNKG
AirportJohn F. Kennedy International AirportNanjing Lukou International Airport
CityNew YorkNanjing
CountryUnited StatesChina
ICAOKJFKZSNJ
Coordinates40.6394, -73.779331.735, 118.8659
Elevation13 ft49 ft

Every figure on this plate is geometry. The shape of the earth is knowable; the airline's schedule is not.

Questions this plate answers

How long is the flight from New York to Nanjing?

A non-stop flight from New York (JFK) to Nanjing (NKG) takes about 15h 09m. The great-circle distance is 11,863 km (7,371 miles, 6,406 nautical miles), flying north on an initial bearing of 349°.

How far is New York from Nanjing?

11,863 kilometres in a straight line over the earth's surface — 7,371 miles or 6,406 nautical miles. Actual flown distance is usually 2–5% longer because aircraft follow airways, avoid weather and route around restricted airspace.

Is there a non-stop flight between JFK and NKG?

This page calculates the direct-line time and distance; it does not track airline schedules. At 11,863 km the route is within reach of long-range widebodies, though not every city pair is served non-stop. Check an airline or booking site for what is actually scheduled.

What should I expect on a 15h 09m flight?

Anything past six hours is a long-haul flight: expect at least one meal service, a significant time-zone shift, and enough sitting that circulation and hydration start to matter. Cabin altitude, dry air and disrupted sleep do more damage to a training routine than the flight itself.

Airport coordinates from OurAirports (public domain). Distance is a great-circle calculation; flight time uses the model described on the method page. Flight times are great-circle estimates for planning only — always check the airline's published schedule.

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Published by

Amit Sharma

Auckland real-estate agent and marketer. Builds free, sourced data tools.