The legal mechanics do not change with distance. A signed power of attorney, drafted and witnessed to the standard the Law Society of Saskatchewan requires, lets your lawyer sign closing documents whether you are in Regina or overseas, so the sale can close without a flight home.
The tax mechanics are genuinely different. Once you leave Canada, the Canada Revenue Agency may require a clearance certificate before the full sale proceeds are released, and your accountant should be looped in months before closing, not the week of.
Beyond those two pieces, listing a Saskatoon home from out of province looks like any other sale: price it correctly, present it well, and let the agent and lawyer run the process. Get your hand-reviewed valuation from Joel Dyck.