Can I get airport immigration fast track and a visa at the same time?

They are two separate services. The e-visa is the permit to enter Vietnam, and fast track is an optional airport service that speeds up your queue. You need the visa first, and fast track does not replace it.

At VietnamVisa.com you apply for the e-visa with a processing speed, such as Same day or Super Urgent. That speed is how quickly the visa is delivered to you, not how quickly you pass the airport.

Fast track is bought separately from airport service operators. Provide your visa and flight details when you book it.

Do not confuse the two when you compare prices, since a low airport service price is not a visa price. Our fee page lists visa prices by speed, and you can apply for your Vietnam e-visa online. VietnamVisa.com is a private visa agency, not a government website. You can apply yourself at evisa.gov.vn for US$25 (single entry) or US$50 (multiple entry).