Dea Tran Han,

Thank you for your question!

Please inform that United State citizens must apply for visa beforehand.

In order to apply for visa to Vietnam, please do as following steps:

- Submiting your information at https://www.vietnam-visa.com/step1

- Settle the payment (service fee) as per instructions

-Receive your visa approval letter after 1working day (urgent service), and 2 working days (normal service) via email

-You print the letter out and bring it together with your photos + passport to the arrival airport in Vietnam,pay stamping fee according to the rate regulated by the Government and pick up your visa there.
And now, you are ready to enter Vietnam!
 

We do hope this information is clear and helpful for you.

Kind regards,

Anna Quach