So once you have the e-Visa, you can go ahead and take your flight to Vietnam. Upon arriving at Vietnam, simply go to the passport control so the immigration can stamp your passport and let you enter the country. You must present your passport along with the transit visa. Since you have a visa, there’s no longer a need to show your onward ticket.
Although you will be using the eVisa as a Vietnam transit visa, this visa can also be used for holiday purposes. In fact, this visa will let you stay in the country for a maximum of 30 days. So if you ever decide to visit Vietnam and stay longer for a holiday in the future, then the e-Visa is what you should apply for. Applying for this visa is convenient, fast, and easy. It saves you time and hassle from having to visit the embassy and personally apply for the visa.
Transit visa is a short-period, temporary visa needed in some countries to stopover for a minimum of 24 hours in the country. If you are traveller who is about to stopover in Vietnam to get your destination flight, then you may need a transit visa.