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Is CX139 usually on time? Hong Kong to Sydney
Cathay Pacific Airways flight 139, HKG to SYD.
Window: last 90 days, about 90 flights observed. Last refreshed: 2026-10-07.
On time
~75%
within 15 min
Typical arrival
+5 min
median, rounded
Worst 1 in 10
about 25 min
late or worse
Cancelled
about 1 in 50
over the window
What we have seen
- Over the last 90 days, about 75% of CX139 arrivals from Hong Kong to Sydney landed within 15 minutes of schedule.
- The typical arrival was about 5 minutes behind schedule.
- One arrival in ten was about 25 minutes late or worse.
- Cancellations over the window: about 1 in 50, across about 90 flights observed.
- Usual aircraft: Boeing 777-300ER.
- Usual departure terminal at HKG: Terminal 1.
- Usual arrival terminal at SYD: Terminal 1.
These describe the last 90 days. They are not a forecast for any one departure.
Related
Frequently asked
- Is CX139 usually on time?
- Over the last 90 days, about 75% of CX139 arrivals from Hong Kong to Sydney landed within 15 minutes of schedule. The typical arrival was about 5 minutes behind schedule.
- How late does CX139 get?
- One arrival in ten was about 25 minutes late or worse.
- How often is CX139 cancelled?
- Cancellations over the window: about 1 in 50, across about 90 flights observed.
- What aircraft flies CX139?
- CX139 has most often been operated by a Boeing 777-300ER over the last 90 days.
- Which terminal does CX139 leave from at HKG?
- CX139 has most often departed from Terminal 1 at Hong Kong (HKG). Check your airline on the day; terminals change.
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