Can I travel without the letter and get the visa when I arrive?
No, you cannot. In order to board the plane, you must show the approval letter to the airlines. This letter is also compulsory in order for you to get the visa at the Vietnam airport. Therefore, we recommend that you leave plenty of time to apply for the visa to avoid having to delay or change your flight.
Due to the effect of Covid-19, we currently stop providing visa services for foreigners until April 15, 2020. We will update the newest announcement soon. Many thanks.