Cathay Pacific Airways offers various flights from different locations all over the world to Vietnam, but most of them are non-direct flights and one with a transfer point in Hong Kong. 

Cathay Pacific Airways Flights

From Hong Kong, there is only one daily flight with fixed hours to Hanoi that departs at 14.55 and arrives at 15.55 (local time). There are another five flights on the route from Hong Kong to Hanoi with different frequency, including 2 flights that departs at 8.40 (local time) on Monday, Tuesday, Wednesday, Friday and Saturday every week; one flight takes off at 18.00 on Tuesday, Thursday, Friday, Saturday and Sunday; one flight at 18.00 on Tuesday and Friday; and one flights at 18.00 on Wednesday, Saturday and Sunday. The lowest fare for an adult on Economy class is HKD 3,300 ($422) for one way trip and HKD 3,430 ($ 439) for round trip.

In addition, Cathay Pacific also provides three daily flights to Ho Chi Minh City at 8.50, 14.45 and 16.20 (local time). The fare for an adult on the Economy class has the lowest price of HKD 3,630 ($465) for one way trip and HKD 2,790 ($357) for round-trip. 

In addition to round trip route between Hong Kong and Hanoi or Ho Chi Minh City, Cathay Pacific also operates shared code flights from Vietnam to North America and Europe.