Flights for CZ1644 These are not all the flights that CZ1644 has taken, just some of them that have flown in or out of SFO

CZ1644 (SFO-PHL)
This China Southern Airlines flight between San Francisco International Airport and Philadelphia International Airport, on September 28, 2019, was operated by another airline. See all the flights for CZ1644.
CZ1644 (SFO-PHL)
This China Southern Airlines flight between San Francisco International Airport and Philadelphia International Airport, on September 27, 2019, was operated by another airline. See all the flights for CZ1644.
CZ1644 (SFO-PHL)
This China Southern Airlines flight between San Francisco International Airport and Philadelphia International Airport, on September 26, 2019, was operated by another airline. See all the flights for CZ1644.
CZ1644 (SFO-PHL)
This China Southern Airlines flight between San Francisco International Airport and Philadelphia International Airport, on September 25, 2019, was operated by another airline. See all the flights for CZ1644.
CZ1644 (SFO-PHL)
This China Southern Airlines flight between San Francisco International Airport and Philadelphia International Airport, on September 22, 2019, was operated by another airline. See all the flights for CZ1644.
CZ1644 (SFO-PHL)
This China Southern Airlines flight between San Francisco International Airport and Philadelphia International Airport, on September 21, 2019, was operated by another airline. See all the flights for CZ1644.
CZ1644 (SFO-PHL)
This China Southern Airlines flight between San Francisco International Airport and Philadelphia International Airport, on September 20, 2019, was operated by another airline. See all the flights for CZ1644.
CZ1644 (SFO-PHL)
This China Southern Airlines flight between San Francisco International Airport and Philadelphia International Airport, on September 18, 2019, was operated by another airline. See all the flights for CZ1644.
CZ1644 (SFO-PHL)
This China Southern Airlines flight between San Francisco International Airport and Philadelphia International Airport, on September 16, 2019, was operated by another airline. See all the flights for CZ1644.
CZ1644 (SFO-PHL)
This China Southern Airlines flight between San Francisco International Airport and Philadelphia International Airport, on September 15, 2019, was operated by another airline. See all the flights for CZ1644.
CZ1644 (SFO-PHL)
This China Southern Airlines flight between San Francisco International Airport and Philadelphia International Airport, on September 14, 2019, was operated by another airline. See all the flights for CZ1644.
CZ1644 (SFO-PHL)
This China Southern Airlines flight between San Francisco International Airport and Philadelphia International Airport, on September 12, 2019, was operated by another airline. See all the flights for CZ1644.

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".