Find the cheapest Vietnam Airlines flights on Expedia from Sydney (SYD) to Cat Bi Intl. Airport (HPH). Flight ticket prices change frequently based on availability and demand. We send price-drop alerts to make air travel simple and flexible. The lowest one-way fare found on Expedia with Vietnam Airlines for this route in the past 7 days starts at AU$557 for travel on 18 February 2027.
AU$557 Cheap Vietnam Airlines flights Sydney (SYD) to Hai Phong Municipality (HPH)
Prices were available within the past 7 days and start at AU$557 for one-way flights and AU$879 for return, for the period specified. Prices and availability are subject to change.