Originally Posted by be_rettSEA

Either AS or partner miles count toward the 50k threshold. A BUR/SEA round trip in paid F (F/P/I fares) would get you there w/ the CoS bonus. A single round trip in upgraded F (or main cabin) would leave you short, but 2 round trips in main cabin would do it and may end up being cheaper than a single paid F round trip, if money's a bigger factor than time for you. If you can find a workable travel date at a reasonable fare, I'd say definitely worth it to get Gold benefits.