Flights for UA423 These are not all the flights that UA423 has taken, just some of them that have flown in or out of SFO

UAL423 (SFO-LAX)
This United Airlines flight traveled from San Francisco International Airport to Los Angeles International Airport, on April 23, 2009. Passengers were flying aboard a Boeing 737-500. See all the flights for UA423.
UAL423 (SFO-LAX)
This United Airlines flight traveled from San Francisco International Airport to Los Angeles International Airport, on May 06, 2009. Passengers were flying aboard a Boeing 737-300. See all the flights for UA423.
UAL423 (SFO-LAX)
This United Airlines flight traveled from San Francisco International Airport to Los Angeles International Airport, on April 19, 2009. Passengers were flying aboard an Airbus A319. See all the flights for UA423.
UAL423 (SFO-LAX)
This United Airlines flight traveled from San Francisco International Airport to Los Angeles International Airport, on May 13, 2009. Passengers were flying aboard a Boeing 737-500. See all the flights for UA423.
UAL423 (SFO-LAX)
This United Airlines flight traveled from San Francisco International Airport to Los Angeles International Airport, on May 25, 2009. Passengers were flying aboard an Airbus A319. See all the flights for UA423.
UAL423 (SFO-LAX)
This United Airlines flight traveled from San Francisco International Airport to Los Angeles International Airport, on May 18, 2009. Passengers were flying aboard a Boeing 737-300. See all the flights for UA423.
UAL423 (SFO-LAX)
This United Airlines flight traveled from San Francisco International Airport to Los Angeles International Airport, on May 22, 2009. Passengers were flying aboard a Boeing 737-300. See all the flights for UA423.
UAL423 (SFO-LAX)
This United Airlines flight traveled from San Francisco International Airport to Los Angeles International Airport, on May 27, 2009. Passengers were flying aboard a Boeing 737-500. See all the flights for UA423.
UAL423 (SFO-LAX)
This United Airlines flight traveled from San Francisco International Airport to Los Angeles International Airport, on July 02, 2011. Passengers were flying aboard a Boeing 757-200. See all the flights for UA423.
UAL423 (SFO-LAX)
This United Airlines flight traveled from San Francisco International Airport to Los Angeles International Airport, on December 29, 2011. Passengers were flying aboard an Airbus A319. See all the flights for UA423.
UAL423 (SFO-ORD)
This United Airlines flight traveled from San Francisco International Airport to Chicago O'Hare International Airport, on March 04, 2012. Passengers were flying aboard a Boeing 757-200. See all the flights for UA423.
UAL423 (SFO-ORD)
This United Airlines flight traveled from San Francisco International Airport to Chicago O'Hare International Airport, on March 11, 2012. Passengers were flying aboard an Airbus A320-200. See all the flights for UA423.