Flights for UA581 These are not all the flights that UA581 has taken, just some of them that have flown in or out of SFO

UAL581 (PDX-SFO)
This United Airlines flight traveled from Portland International Airport to San Francisco International Airport, on December 15, 2007. Passengers were flying aboard a Boeing 737-300. See all the flights for UA581.
UAL581 (PDX-SFO)
This United Airlines flight traveled from Portland International Airport to San Francisco International Airport, on December 21, 2007. Passengers were flying aboard an Airbus A319. See all the flights for UA581.
UAL581 (PDX-SFO)
This United Airlines flight traveled from Portland International Airport to San Francisco International Airport, on December 19, 2007. Passengers were flying aboard an Airbus A319. See all the flights for UA581.
UAL581 (PDX-SFO)
This United Airlines flight traveled from Portland International Airport to San Francisco International Airport, on September 02, 2012. Passengers were flying aboard a Boeing 757-200. See all the flights for UA581.
UAL581 (PDX-SFO)
This United Airlines flight traveled from Portland International Airport to San Francisco International Airport, on January 02, 2008. Passengers were flying aboard an Airbus A319. See all the flights for UA581.
UAL581 (PDX-SFO)
This United Airlines flight traveled from Portland International Airport to San Francisco International Airport, on December 17, 2007. Passengers were flying aboard an Airbus A319. See all the flights for UA581.
UAL581 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on March 30, 2012. Passengers were flying aboard a Boeing 757-200. See all the flights for UA581.
UAL581 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on March 09, 2012. Passengers were flying aboard a Boeing 757-200. See all the flights for UA581.
UAL581 (SFO-DFW)
This United Airlines flight traveled from San Francisco International Airport to Dallas-Fort Worth International Airport, on November 22, 2018. Passengers were flying aboard an Airbus A319. See all the flights for UA581.
UAL581 (SFO-DFW)
This United Airlines flight traveled from San Francisco International Airport to Dallas-Fort Worth International Airport, on September 04, 2011. Passengers were flying aboard an Airbus A319. See all the flights for UA581.
UAL581 (SFO-HNL)
This United Airlines flight traveled from San Francisco International Airport to Honolulu International Airport, on July 04, 2011. Passengers were flying aboard a Boeing 777-200. See all the flights for UA581.
UAL581 (SFO-IAH)
This United Airlines flight traveled from San Francisco International Airport to George Bush Intercontinental Airport, on January 22, 2013. Passengers were flying aboard a Boeing 757-200. See all the flights for UA581.