All the airports that Delta Air Lines flights have come from See the airports that Delta Air Lines flight have traveled to / or see all the flights this airline has flown (in and out of SFO)

March Air Force Base. This airport in the United States is also referred to as RIV or sometimes KRIV
Edmonton International Airport. This airport in Canada is also referred to as YEG or sometimes CYEG
Toronto Lester B Pearson International Airport. This airport in Canada is also referred to as YYZ or sometimes CYYZ
Alexandria International Airport. This airport in the United States is also referred to as AEX or sometimes KAEX
Ellington Field Airport. This airport in the United States is also referred to as EFD
Montrose Regional Airport. This airport in the United States is also referred to as MTJ or sometimes KMTJ
Nellis Air Force Base. This airport in the United States is also referred to as LSV or sometimes KLSV
City of Colorado Springs Airport. This airport in the United States is also referred to as COS or sometimes KCOS
Cold Bay Airport. This airport in the United States is also referred to as CDB
Tri Cities Airport. This airport in the United States is also referred to as PSC or sometimes KPSC
Charlotte Douglas International Airport. This airport in the United States is also referred to as CLT or sometimes KCLT
Eagle County Regional Airport. This airport in the United States is also referred to as EGE or sometimes KEGE

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".