KLM Royal Dutch Airlines· Callsign KLM643 ·Daily

KL643 from Amsterdam to New York, tracked live

Successor to KLM's pioneering 1946 New York service, the first from continental Europe after the war.

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Status on this page means observed ADS-B activity inside available receiver coverage. Confirm official delay, cancellation, gate and booking status with KLM Royal Dutch Airlines.

Amsterdam
Amsterdam Airport Schiphol
12:50 CET (UTC+1)
8h 20m
5,848 km · 3,634 mi
Non-stop
New York
John F. Kennedy International Airport
15:10 EDT (UTC-4)
Typical schedule · next departure Friday, October 30 · times shown in airport local time
Aircraft
typical equipment
Distance
5,848 km
3,157 nautical miles
Heading
291°
tracks west
Clock change
-5 h
on arrival
Block speed
702 km/h
gate to gate average
Range used
50%
of the type's book range
Length rank
#195
of 439 tracked routes

Follow KL643 in real time

The aircraft appears below whenever it is airborne and inside receiver coverage. Its planned route is drawn between the two airports.

KL643 is not transmitting right now. It may be between rotations, on the ground, or out of receiver range - Check back near 12:50 at AMS. The full map has the rest of the sky, and what is flying over me will name whatever is above you instead.

KL643 at a glance

  • The trip: 5,848 km (3,634 miles) from Amsterdam to New York, flying west.
  • How long: 8h 20m gate to gate. That is about 702 km/h on average, taxi time included.
  • Your watch: set it 5 hours back on arrival.
  • Window seat tip: the left (south-facing) side gets the sun on a daytime flight.
  • The plane: usually an Airbus A330-300. This route uses about 50% of how far it can fly.
  • When it goes: out of AMS in midday, into JFK in the afternoon.

KL643 route overview: AMS to JFK

KL643 distance and great-circle path

KL643 covers 5,848 km, or 3,634 miles. That makes it a long-haul flight, a widebody route with a full night's flying time. Of the 439 routes we track, it ranks 195 by distance.

The plane leaves Amsterdam heading west. On the map above, the line looks curved. That is normal. The shortest path over a round planet never looks straight on a flat screen. Our guide explains how the AMS-JFK route appears on a tracker map.

Why KL643 block time differs from cruise time

The schedule allows 8.3 hours from gate to gate. That works out to about 702 km/h. An Airbus A330-300 cruises faster than that. The gap is taxi time, climbing, descending and holding.

Flying west, this route pushes against the wind. The trip back east is usually shorter, even though the distance is the same. See how high-altitude winds behave in our guide to turbulence and jet streams.

Can the Airbus A330-300 comfortably fly KL643?

Not at all. At roughly 50% of its range, this is an easy trip for an Airbus A330-300. The airline picked it for cabin size, not distance. The full numbers are on our aircraft page for the Airbus A330-300.

What to know about KL643

  • Time change: you land 5 hours behind the time you left. That is enough to cause jet lag. Here is how pilots handle it.

KL643 activity in the past 7 days

Our database contains 6 observations of KL643 across 6 UTC dates in this window, most recently 2026-10-29. Those records contain 5 distinct transponder addresses.

The median recorded visibility was 455 minutes. That is time inside receiver coverage, not airborne duration or an on-time-performance measurement.

Date (UTC)RouteFirst trackedLast trackedTracked for
2026-10-29 tracked in flight 00:01 UTC 00:01 UTC —
2026-10-28 tracked in flight 16:18 UTC 23:59 UTC 7h 41m
2026-10-27 tracked in flight 00:02 UTC 23:57 UTC 23h 55m
2026-10-26 tracked in flight 16:36 UTC 23:59 UTC 7h 23m
2026-10-24 tracked in flight 16:17 UTC 23:42 UTC 7h 25m
2026-10-22 tracked in flight 15:38 UTC 23:13 UTC 7h 35m

“First/last tracked” are when KL643 entered and left receiver coverage, in UTC.

Airports and aircraft on KL643

Every scheduled service we follow is listed in the tracker directory, including KLM Royal Dutch Airlines and other tracked flights grouped by airline.

AMS Amsterdam Airport Schiphol Amsterdam, Netherlands · live radar →
JFK John F. Kennedy International Airport New York, United States · live radar →
A333 Airbus A330-300 Typical equipment · specs →

How much CO2 does KL643 emit?

Worked from the great-circle distance and the fuel burn measured for Airbus A330-300, the aircraft normally flying this route. Carbon dioxide only - see the method below.

Distance flown5,848 km
AircraftAirbus A330-300
Fuel burn rate6.28 kg per km
Fuel burned36,730 kg
CO2, whole flight116.1 tonnes
Seats, typical layout277
Passengers carried230 at an 83% load factor
CO2 per passenger505 kg

Where that lands by cabin

The aircraft burns the same fuel whoever is aboard, so the cabins divide one total rather than each carrying their own. A seat's share is the floor it takes up, which is why an economy seat comes out below the 505 kg cabin average and a flat bed well above it.

Economy227 seats, 188 flown
366 kg CO2 per seat
Business42 seats, 35 flown
1,060 kg CO2 per seat
First8 seats, 7 flown
1,462 kg CO2 per seat

Taken whole, KL643 emits what 1,934 trees take back out of the air in a year. One economy seat on it accounts for about the same carbon dioxide as driving a petrol car 2,968 km, or 14,418 km of the same journey by train.

How this is worked out. Fuel burn is read from published measurements of this type, taken at sectors of 5,556 km and 10,275 km, interpolated to this route's 5,848 km. It counts carbon dioxide only, and the cabin split assumes the layout typical of this size of aircraft. Read the full method, sources and caveats, or put KL643 against another flight.

Other tracked flights from Amsterdam

FlightRouteTypical aircraft
KL592Johannesburg (JNB) → Amsterdam (AMS) Boeing 777-300ERKL592 flight tracker →
KL1031Amsterdam (AMS) → Manchester (MAN) Boeing 737-800KL1031 flight tracker →
KL601Amsterdam (AMS) → Los Angeles (LAX) Boeing 777-200ERKL601 flight tracker →
KL835Amsterdam (AMS) → Jakarta (CGK) Boeing 777-300ERKL835 flight tracker →
KL861Amsterdam (AMS) → Tokyo (NRT) Boeing 777-200ERKL861 flight tracker →
KL897Amsterdam (AMS) → Beijing (PEK) Boeing 777-300ERKL897 flight tracker →

Data sources and review

Reviewed 2026-07-29 by Flight-Tracker.net Editorial Team

The route and typical schedule are maintained reference data. Live ADS-B observations are evidence of receiver coverage, not proof of on-time performance. Always confirm the operating date and times with the airline.

Read our schedule and observation review process, or inspect the machine-readable reference dataset.

Put KL643 on your own site

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KL643 frequently asked questions

How long is the KL643 flight?

Amsterdam to New York is 5,848 km (3,634 miles) in a straight line, scheduled at 8.3 hours gate to gate. Actual airborne time varies with winds, routing and holding.

What aircraft operates KL643?

Typically an Airbus A330-300 (full specifications), using roughly 50% of that type's published range.

Does KL643 fly every day?

The published pattern is daily, departing 12:50 local from AMS. Always confirm with the airline before travelling.

Can I track KL643 live?

Yes. Whenever KL643 is airborne and in receiver coverage the map above follows it live, with altitude, ground speed and heading. Between rotations, the seven-day log above shows where it has been.

More KLM Royal Dutch Airlines flights to watch

FlightRouteTypical aircraft
KL592 Johannesburg (JNB) → Amsterdam (AMS) Boeing 777-300ER KL592 flight tracker →
KL1031 Amsterdam (AMS) → Manchester (MAN) Boeing 737-800 KL1031 flight tracker →
KL601 Amsterdam (AMS) → Los Angeles (LAX) Boeing 777-200ER KL601 flight tracker →
KL835 Amsterdam (AMS) → Jakarta (CGK) Boeing 777-300ER KL835 flight tracker →
KL861 Amsterdam (AMS) → Tokyo (NRT) Boeing 777-200ER KL861 flight tracker →
KL897 Amsterdam (AMS) → Beijing (PEK) Boeing 777-300ER KL897 flight tracker →
KL591 Amsterdam (AMS) → Johannesburg (JNB) Boeing 777-300ER KL591 flight tracker →