Arrival visa means the visa that you can collect upon arrival at the airport. The advantages of arrival visa is you will not need to go anywhere to apply for the visa and it is convenient for people who really want to save their valuable time in business. However, the airlines will ask you to have a visa to let you get on board. You will need to have a letter of visa upon arrival which is issued by Vietnam Immigration Department. Airlines accept this letter and you can get visa upon...