All the airports that flights arriving at Gate E2 ( between 2021-11-09 and the present ) have come from See the airports that flights leaving from Gate E2 are going to / or see all the flights in and out of this gate

Montrose Regional Airport. This airport in the United States is also referred to as MTJ or sometimes KMTJ
Yampa Valley Airport. This airport in the United States is also referred to as HDN or sometimes KHDN
Port Columbus International Airport. This airport in the United States is also referred to as CMH or sometimes KCMH
Southwest Florida International Airport. This airport in the United States is also referred to as RSW or sometimes KRSW

All these flight data are available as openly licensed data on the sfomuseum-data GitHub account. If you'd like to read more about our efforts to archive flight data at SFO Museum have a look a the Mills Field weblog posts tagged "flightdata".