All the airports that flights arriving at Gate B4 ( between 2021-05-25 and 2021-11-09 ) have come from See the airports that flights leaving from Gate B4 are going to / or see all the flights in and out of this gate

Gen E L Logan International Airport. This airport in the United States is also referred to as BOS or sometimes KBOS
Eppley Airfield. This airport in the United States is also referred to as OMA or sometimes KOMA

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".