In general, there are two fees you are required to pay: The stamping fee (paid directly at Vietnam’s airport) + our service fee for the approval letter (paid in advance). Our detailed fee schedule can be found here. Normally, 1-month single entry will cost 16.99 USD for our service fee for the letter of approval + the stamping fee at Vietnam airport.
News & Updates on stamping fee at the airport (price per person)
25 USD for single entry
50 USD for multiple entries
You can read more: Stamping Fee