If I take the offer to pay $40 to upgrade to A1-A15 (SFO to MCO) will this apply to both my flights? Or only to the first leg? and then would I have to separately pay another $40 for the 2nd leg? It's one booking with 2 connecting flights changing in Las Vegas.

Apologies if this was already answered in a past thread. I did a search for upgraded boarding but did not find an answer. I fly enough to be A-list but those are short SFO/SJC to SNA/LGB/LAX flights. This is my first time on a connecting SWA flight!!!