Voyager 1's current speed is a very slow 3.5 AU a year.
At this speed it will take Voyager 14,000 more years to even reach a single light year.
That's 38,000 mph[ 61,400 km/h or 1,023 kps
We're talking INTERSTELLAR PROBES
They will travel at a fraction of the speed of light. 10%c
That's 10 years to travel a lightyear
Without humans it could accelerate at will as an interstellar ram jet.