The Yukon licence page does not treat every visitor the same. Alaska residents pay the same fishing licence fee as Yukon residents, which is a practical detail for anglers crossing the border by road.
The same official page also says eligible citizens or members of a Yukon First Nation, the Tetlit Gwich'in, or the Inuvialuit can get a free fishing licence. That makes the Yukon page more useful than a simple fee chart because it tells you when the general resident or visitor columns are not the real answer.
If you are only comparing visitor prices, start with the non-resident licence guide, then return here for Yukon-specific Alaska pricing, salmon, park, and extra-licence details.