Am I interpreting the abbreviations correctly? San Francisco, Australia, South East Asia, New York City, London and Lisbon?
Edit: deleted, parent edited their own post, disregard.
They're IATA airport codes (except for San Francisco, which should be SFO).
Probably Austin and Seattle.
Sorry for the ambiguity and confusing mix of abbreviations and airport codes!
It's San Francisco/Austin/Seattle/New York City/London/Lisbon