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 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 September 08, 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 07, 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 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 September 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 September 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 August 19, 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 August 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 August 17, 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 August 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 August 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 August 14, 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".