Cathay Pacific Flight 138 Deals & Information (2026/2027)

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Cathay Pacific Flight 138 Route Deals From $520

The cheapest prices found with in the last 7 days for return flights were $528 and $520 for one-way flights to Hong Kong Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Mar 6 - Fri, Mar 20
SYD
Kingsford Smith Intl.
HKG
Hong Kong Intl.
$528 Roundtrip, found 6 days ago
$528
Roundtrip
found 6 days ago
Select Cathay Pacific flight, departing Fri, Mar 6 from Kingsford Smith Intl. to Hong Kong Intl., returning Fri, Mar 20, priced at $528 found 6 days ago
Mon, Feb 9 - Tue, Feb 24
SYD
Kingsford Smith Intl.
HKG
Hong Kong Intl.
$565 Roundtrip, just found
$565
Roundtrip
just found
Select Cathay Pacific flight, departing Mon, Feb 9 from Kingsford Smith Intl. to Hong Kong Intl., returning Tue, Feb 24, priced at $565 just found

Frequently asked questions

What route does flight number CX138 take?
CX138 flies direct from SYD to Chek Lap Kok Intl. Airport. During this journey, you can expect to be in the air for 9 hours and 15 minutes. It's wise to book ahead to secure your favorite seat.
What terminal does CX138 fly out of?
Direct flights to and from SYD and HKG are served by CX138, and travelers booked on this route normally take off from Terminal 1.
What kind of plane is on flight number CX138?
The route for CX138 is nearly always Kingsford Smith Intl. Airport (SYD) to HKG, and the Boeing 777-300ER is the aircraft model you'll probably be jetting off with.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your CX138 flight with Travelocity, please visit our Customer Service Portal.