Yes, there are multiple flights from Vietnam to Basel for under 20,713,464₫. The cheapest flight booked recently is on Air France for just 19,654,776₫, but on average you can expect to pay 56,432,680₫.
There are no direct flights from Vietnam to Basel, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.
Airlines like Air France, British Airways, and ANA fly from Vietnam to Basel in about 16h 05m. The time it takes to get you to your destination can typically vary by up to 24h 10m. Both multi-stop and direct flights can be found to your destination and back.
Cheapflights users have booked flights from Vietnam to Basel round-trip from 19,654,776₫. Other airlines that can offer you cheap pricing are ANA, from 125,224,400₫, and British Airways, from 130,471,808₫.