Cathay Pacific Flight CX691 Deals & Information (2025/2026)

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Cathay Pacific Flight 691 Route Deals From $308

The cheapest prices found with in the last 7 days for return flights were $333 and $308 for one-way flights to Changi for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Mar 9 - Thu, Mar 13
HKG
Hong Kong Intl.
SIN
Changi
$333 Roundtrip, found 16 hours ago
$333
Roundtrip
found 16 hours ago
Select Cathay Pacific flight, departing Sun, Mar 9 from Hong Kong Intl. to Changi, returning Thu, Mar 13, priced at $333 found 16 hours ago

Frequently asked questions

What route does flight number CX691 take?
CX691 operates straight from HKG to Singapore Airport (SIN-Changi). During this journey, expect to be in the air for around 3 hours and 55 minutes. It’s wise to book ahead to secure your preferred seat.
What terminal does CX691 fly out of?
CX691 runs between Hong Kong Airport (HKG-Hong Kong Intl.) and Singapore Airport (SIN-Changi), and travelers with a seat on this flight generally board the aircraft from Terminal 1.
What kind of plane is on flight number CX691?
The route for flight number CX691 is nearly always HKG to Singapore Airport (SIN-Changi), and the Airbus A330-300 is the type of aircraft you’ll probably be heading off on.
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 CX691 flight with Travelocity, please visit our Customer Service Portal.