I am looking for an expression equivalent to this term as used in Argentina (and potentially other places.
However, a common use of this term not captured there is to refer to a place that is not necessarily far, but inconvenient to get to from your starting point (regardless of whether it's out of your way)
For example, because of one-way streets that force you to take a long detour, or public transportation not reaching one of the places, or not having a good connection between them.
We would specifically say
No es lejos, pero es a trasmano
It's not far, but it's ...