Flights for WN1840 These are not all the flights that WN1840 has taken, just some of them that have flown in or out of SFO

SWA1840 (LAX-SFO)
This Southwest Airlines flight traveled from Los Angeles International Airport to San Francisco International Airport, on September 27, 2018. Passengers were flying aboard a Boeing 737-700. See all the flights for WN1840.
SWA1840 (LAX-SFO)
This Southwest Airlines flight traveled from Los Angeles International Airport to San Francisco International Airport, on October 02, 2018. Passengers were flying aboard a Boeing 737-700. See all the flights for WN1840.

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".