Originally Posted by
Ian Z
What if it was ticketed as a codeshare so full Alaska flight number etc?
That will not make a difference for access to the QF Oneworld lounge as the flight must be marketed and operated by a Oneworld member airline.
From Oneworld.com:
Enjoy exclusive access to premium airport lounges around the world with oneworld Emerald or Sapphire frequent flyer tier status. Members of oneworld airline frequent flyer programmes with the equivalent of oneworld Emerald or Sapphire tier status can use lounges offered by oneworld airlines when departing on any flight marketed and operated by any oneworld member airline, regardless of cabin class being flown (exceptions are noted below).
https://www.oneworld.com/airport-lounges