Official e-visa Vietnam

Vietnam has introduced a pilot electronic visa system on 1 February 2017. The e-visas have a cost of US$25 (Stamping fee) + service fee may in charges and are granted for single entry visits for up to 30 days to nationals of the following 46 eligible countries:

1 – does not apply to e-passport holders.

Pre-arranged visa (Visa On Arrival Vietnam)

Holders of a visa approved letter issued and stamped in Hanoi or Da Nang or Ho Chi Minh city by the Vietnamese Immigration Department without the Ministry of Public Security or the Consular Department of the Ministry of Foreign Affairs can obtain a visa for a maximum stay of 1 or 3 or 6 or 12 months at airports in Hanoi, Ho Chi Minh City, Da Nang or Nha Trang. 

This type of visas, you should apply online on the official webpage [ https://www.onlinevisavietnam.org/apply-vietnam-visa.html ]