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 October 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 October 13, 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 October 12, 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 October 11, 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 October 10, 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 October 09, 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 October 06, 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 October 05, 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 October 04, 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 October 03, 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 30, 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 29, 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".