If you're American, visa arrangements are an essential part of planning a Vietnam tour. In fact, airlines will ask to see a physical visa or a Visa on Arrival approval letter for a before admitting passengers on flights to Vietnam. Fortunately, thanks to recent updates implemented by the Vietnam Immigration Department, the visa application process has been streamlined for tourists. It's now easier than ever to get to the enchanting islands of Ha Long Bay, undulating terraces of Sapa, and vibrant floating markets of the Mekong Delta!