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

Charlotte Douglas International Airport. This airport in the United States is also referred to as CLT or sometimes KCLT
Miami International Airport. This airport in the United States is also referred to as MIA or sometimes KMIA
Norman Y Mineta San Jose International Airport. This airport in the United States is also referred to as SJC or sometimes KSJC
Oakland International Airport. This airport in the United States is also referred to as OAK or sometimes KOAK
Fresno Yosemite International Airport. This airport in the United States is also referred to as FAT or sometimes KFAT
Cancun Airport. This airport in Mexico is also referred to as CUN or sometimes MMUN
El Paso International Airport. This airport in the United States is also referred to as ELP or sometimes KELP
San Francisco International Airport. This airport in the United States is also referred to as SFO or sometimes KSFO
Montrose Regional Airport. This airport in the United States is also referred to as MTJ or sometimes KMTJ
Reno-Tahoe International Airport. This airport in the United States is also referred to as RNO or sometimes KRNO
Dane County Regional Airport-Truax Field. This airport in the United States is also referred to as MSN or sometimes KMSN
Memphis International Airport. This airport in the United States is also referred to as MEM or sometimes KMEM

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".