Cathay Pacific· Callsign CPA100 ·Daily

CX100 HKG → SYD

The premier Australian route Cathay has served since the era of its flying-boat and DC-4 pioneers.

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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 Cathay Pacific.

Hong Kong
Hong Kong International Airport
09:20 HKT (UTC+8)
9h 05m
7,393 km · 4,594 mi
Non-stop
Sydney
Sydney Kingsford Smith Airport
20:25 AEST (UTC+10)
Typical schedule · next departure Thursday, July 30 · times shown in airport local time
Aircraft
typical equipment
Distance
7,393 km
3,992 nautical miles
Heading
147°
tracks south-east
Clock change
+2 h
on arrival
Block speed
814 km/h
gate to gate average
Range used
49%
of the type's book range
Length rank
#121
of 255 tracked routes

Follow CX100 in real time

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

CX100 is not transmitting right now. It may be between rotations, on the ground, or out of receiver range - Check back near 09:20 at HKG. The full map has the rest of the sky.

CX100 at a glance

  • The trip: 7,393 km (4,594 miles) from Hong Kong to Sydney, flying south-east.
  • How long: 9h 05m gate to gate. That is about 814 km/h on average, taxi time included.
  • The plane: usually an Airbus A350-900. This route uses about 49% of how far it can fly.
  • Your watch: set it 2 hours forward on arrival.
  • Window seat tip: the right (south-facing) side gets the sun on a daytime flight.
  • When it goes: out of HKG in mid-morning, into SYD in late evening.

CX100 route overview: HKG to SYD

CX100 distance and great-circle path

CX100 covers 7,393 km, or 4,594 miles. That makes it a long-haul flight, a widebody route with a full night's flying time. Of the 255 routes we track, it ranks 121 by distance.

The plane leaves Hong Kong heading south-east. 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 HKG–SYD route appears on a tracker map.

Why CX100 block time differs from cruise time

The schedule allows 9.1 hours from gate to gate. That works out to about 814 km/h. An Airbus A350-900 cruises faster than that. The gap is taxi time, climbing, descending and holding.

Winds aloft shift the real flight time by up to an hour in either direction. See how high-altitude winds behave in our guide to turbulence and jet streams.

Can the Airbus A350-900 comfortably fly CX100?

Not at all. At roughly 49% of its range, this is an easy trip for an Airbus A350-900. The airline picked it for cabin size, not distance. The full numbers are on our aircraft page for the Airbus A350-900.

What to know about CX100

  • Time change: you land 2 hours ahead of the time you left.
  • Crosses the equator: you swap seasons between takeoff and landing.

CX100 activity in the past 7 days

Our database contains 2 observations of CX100 across 2 UTC dates in this window, most recently 2026-07-29. Those records contain 2 distinct transponder addresses.

The median recorded visibility was 339 minutes. That is time inside receiver coverage, not airborne duration or an on-time-performance measurement.

Date (UTC)RouteFirst trackedLast trackedTracked for
2026-07-29 tracked in flight 04:22 UTC 13:39 UTC 9h 17m
2026-07-28 tracked in flight 11:50 UTC 13:50 UTC 2h 1m

“First/last tracked” are when CX100 entered and left receiver coverage, in UTC.

Airports and aircraft on CX100

Every scheduled service we follow is listed in the tracker directory, including Cathay Pacific and other tracked flights grouped by airline.

Other tracked flights from Hong Kong

FlightRouteTypical aircraft
CX888Hong Kong (HKG) → Vancouver (YVR) → New York (JFK) Airbus A350-1000CX888 flight tracker →
CX255Hong Kong (HKG) → London (LHR) Airbus A350-1000CX255 flight tracker →
CX880Hong Kong (HKG) → Los Angeles (LAX) Boeing 777-300ERCX880 flight tracker →
CX520Hong Kong (HKG) → Tokyo (NRT) Airbus A330-300CX520 flight tracker →
CA125Beijing (PEK) → Hong Kong (HKG) Airbus A330-300CA125 flight tracker →
AK130Kuala Lumpur (KUL) → Hong Kong (HKG) Airbus A321neoAK130 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.

CX100 frequently asked questions

How long is the CX100 flight?

Hong Kong to Sydney is 7,393 km (4,594 miles) in a straight line, scheduled at 9.1 hours gate to gate. Actual airborne time varies with winds, routing and holding.

What aircraft operates CX100?

Typically an Airbus A350-900 (full specifications), using roughly 49% of that type's published range.

Does CX100 fly every day?

The published pattern is daily, departing 09:20 local from HKG. Always confirm with the airline before travelling.

Can I track CX100 live?

Yes. Whenever CX100 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 Cathay Pacific flights to watch

FlightRouteTypical aircraft
CX888 Hong Kong (HKG) → Vancouver (YVR) → New York (JFK) Airbus A350-1000 CX888 flight tracker →
CX255 Hong Kong (HKG) → London (LHR) Airbus A350-1000 CX255 flight tracker →
CX880 Hong Kong (HKG) → Los Angeles (LAX) Boeing 777-300ER CX880 flight tracker →
CX520 Hong Kong (HKG) → Tokyo (NRT) Airbus A330-300 CX520 flight tracker →