Observation Decks that are, or have been, part of SFO

SkyTerrace Observation Deck between 2021-11-09 and the present
Boarding Area G Observation Deck between 2021-11-09 and the present
SkyTerrace Observation Deck between 2021-09 and 2021-11-09
Boarding Area G Observation Deck between 2021-05-25 and 2021-11-09
Boarding Area G Observation Deck between 2020-~05 and 2021-05-25
Boarding Area G Observation Deck between 2019-07-23 and 2020-~05
Boarding Area G Observation Deck between 2019-02-06 and 2019-07-23