Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Asheville to Togo as you normally would.
For a flight from Asheville to Togo, you will be flying from Asheville Regional. Asheville Regional (AVL) is just 10.9 mi from the center of the city.
This is defined as Asheville Regional Airport (AVL) and Lome Airport (LFW). Codes like Lome Airport are often used to just call airports uniquely.